Merge branch 'develop' into enhancement/tycache-enhancement-cached-material

client/ayon_core/hosts/aftereffects/api/pipeline.py

@@ -8,14 +8,11 @@ from ayon_core.lib import Logger, register_event_callback
 from ayon_core.pipeline import (
     register_loader_plugin_path,
     register_creator_plugin_path,
+    register_workfile_build_plugin_path,
     AVALON_CONTAINER_ID,
     AVALON_INSTANCE_ID,
     AYON_INSTANCE_ID,
 )
-from ayon_core.hosts.aftereffects.api.workfile_template_builder import (
-    AEPlaceholderLoadPlugin,
-    AEPlaceholderCreatePlugin
-)
 from ayon_core.pipeline.load import any_outdated_containers
 import ayon_core.hosts.aftereffects
 
@@ -40,6 +37,7 @@ PLUGINS_DIR = os.path.join(HOST_DIR, "plugins")
 PUBLISH_PATH = os.path.join(PLUGINS_DIR, "publish")
 LOAD_PATH = os.path.join(PLUGINS_DIR, "load")
 CREATE_PATH = os.path.join(PLUGINS_DIR, "create")
+WORKFILE_BUILD_PATH = os.path.join(PLUGINS_DIR, "workfile_build")
 
 
 class AfterEffectsHost(HostBase, IWorkfileHost, ILoadHost, IPublishHost):
@@ -76,6 +74,7 @@ class AfterEffectsHost(HostBase, IWorkfileHost, ILoadHost, IPublishHost):
 
         register_loader_plugin_path(LOAD_PATH)
         register_creator_plugin_path(CREATE_PATH)
+        register_workfile_build_plugin_path(WORKFILE_BUILD_PATH)
 
         register_event_callback("application.launched", application_launch)
 
@@ -118,12 +117,6 @@ class AfterEffectsHost(HostBase, IWorkfileHost, ILoadHost, IPublishHost):
         item["id"] = "publish_context"
         self.stub.imprint(item["id"], item)
 
-    def get_workfile_build_placeholder_plugins(self):
-        return [
-            AEPlaceholderLoadPlugin,
-            AEPlaceholderCreatePlugin
-        ]
-
     # created instances section
     def list_instances(self):
         """List all created instances from current workfile which

client/ayon_core/hosts/aftereffects/api/workfile_template_builder.py

@@ -1,6 +1,7 @@
 import os.path
 import uuid
 import shutil
+from abc import abstractmethod
 
 from ayon_core.pipeline import registered_host
 from ayon_core.tools.workfile_template_build import (
@@ -9,13 +10,9 @@ from ayon_core.tools.workfile_template_build import (
 from ayon_core.pipeline.workfile.workfile_template_builder import (
     AbstractTemplateBuilder,
     PlaceholderPlugin,
-    LoadPlaceholderItem,
-    CreatePlaceholderItem,
-    PlaceholderLoadMixin,
-    PlaceholderCreateMixin
+    PlaceholderItem
 )
 from ayon_core.hosts.aftereffects.api import get_stub
-from ayon_core.hosts.aftereffects.api.lib import set_settings
 
 PLACEHOLDER_SET = "PLACEHOLDERS_SET"
 PLACEHOLDER_ID = "openpype.placeholder"
@@ -51,6 +48,10 @@ class AETemplateBuilder(AbstractTemplateBuilder):
 class AEPlaceholderPlugin(PlaceholderPlugin):
     """Contains generic methods for all PlaceholderPlugins."""
 
+    @abstractmethod
+    def _create_placeholder_item(self, item_data: dict) -> PlaceholderItem:
+        pass
+
     def collect_placeholders(self):
         """Collect info from file metadata about created placeholders.
 
@@ -63,17 +64,7 @@ class AEPlaceholderPlugin(PlaceholderPlugin):
             if item.get("plugin_identifier") != self.identifier:
                 continue
 
-            if isinstance(self, AEPlaceholderLoadPlugin):
-                item = LoadPlaceholderItem(item["uuid"],
-                                           item["data"],
-                                           self)
-            elif isinstance(self, AEPlaceholderCreatePlugin):
-                item = CreatePlaceholderItem(item["uuid"],
-                                             item["data"],
-                                             self)
-            else:
-                raise NotImplementedError(f"Not implemented for {type(self)}")
-
+            item = self._create_placeholder_item(item)
             output.append(item)
 
         return output
@@ -135,87 +126,6 @@ class AEPlaceholderPlugin(PlaceholderPlugin):
         stub.imprint(item_id, container_data)
 
 
-class AEPlaceholderCreatePlugin(AEPlaceholderPlugin, PlaceholderCreateMixin):
-    """Adds Create placeholder.
-
-    This adds composition and runs Create
-    """
-    identifier = "aftereffects.create"
-    label = "AfterEffects create"
-
-    def create_placeholder(self, placeholder_data):
-        stub = get_stub()
-        name = "CREATEPLACEHOLDER"
-        item_id = stub.add_item(name, "COMP")
-
-        self._imprint_item(item_id, name, placeholder_data, stub)
-
-    def populate_placeholder(self, placeholder):
-        """Replace 'placeholder' with publishable instance.
-
-        Renames prepared composition name, creates publishable instance, sets
-        frame/duration settings according to DB.
-        """
-        pre_create_data = {"use_selection": True}
-        item_id, item = self._get_item(placeholder)
-        get_stub().select_items([item_id])
-        self.populate_create_placeholder(placeholder, pre_create_data)
-
-        # apply settings for populated composition
-        item_id, metadata_item = self._get_item(placeholder)
-        set_settings(True, True, [item_id])
-
-    def get_placeholder_options(self, options=None):
-        return self.get_create_plugin_options(options)
-
-
-class AEPlaceholderLoadPlugin(AEPlaceholderPlugin, PlaceholderLoadMixin):
-    identifier = "aftereffects.load"
-    label = "AfterEffects load"
-
-    def create_placeholder(self, placeholder_data):
-        """Creates AE's Placeholder item in Project items list.
-
-         Sets dummy resolution/duration/fps settings, will be replaced when
-         populated.
-         """
-        stub = get_stub()
-        name = "LOADERPLACEHOLDER"
-        item_id = stub.add_placeholder(name, 1920, 1060, 25, 10)
-
-        self._imprint_item(item_id, name, placeholder_data, stub)
-
-    def populate_placeholder(self, placeholder):
-        """Use Openpype Loader from `placeholder` to create new FootageItems
-
-        New FootageItems are created, files are imported.
-        """
-        self.populate_load_placeholder(placeholder)
-        errors = placeholder.get_errors()
-        stub = get_stub()
-        if errors:
-            stub.print_msg("\n".join(errors))
-        else:
-            if not placeholder.data["keep_placeholder"]:
-                metadata = stub.get_metadata()
-                for item in metadata:
-                    if not item.get("is_placeholder"):
-                        continue
-                    scene_identifier = item.get("uuid")
-                    if (scene_identifier and
-                            scene_identifier == placeholder.scene_identifier):
-                        stub.delete_item(item["members"][0])
-                stub.remove_instance(placeholder.scene_identifier, metadata)
-
-    def get_placeholder_options(self, options=None):
-        return self.get_load_plugin_options(options)
-
-    def load_succeed(self, placeholder, container):
-        placeholder_item_id, _ = self._get_item(placeholder)
-        item_id = container.id
-        get_stub().add_item_instead_placeholder(placeholder_item_id, item_id)
-
-
 def build_workfile_template(*args, **kwargs):
     builder = AETemplateBuilder(registered_host())
     builder.build_template(*args, **kwargs)

client/ayon_core/hosts/aftereffects/plugins/workfile_build/create_placeholder.py

@@ -0,0 +1,49 @@
+from ayon_core.pipeline.workfile.workfile_template_builder import (
+    CreatePlaceholderItem,
+    PlaceholderCreateMixin
+)
+from ayon_core.hosts.aftereffects.api import get_stub
+from ayon_core.hosts.aftereffects.api.lib import set_settings
+import ayon_core.hosts.aftereffects.api.workfile_template_builder as wtb
+
+
+class AEPlaceholderCreatePlugin(wtb.AEPlaceholderPlugin,
+                                PlaceholderCreateMixin):
+    """Adds Create placeholder.
+
+    This adds composition and runs Create
+    """
+    identifier = "aftereffects.create"
+    label = "AfterEffects create"
+
+    def _create_placeholder_item(self, item_data) -> CreatePlaceholderItem:
+        return CreatePlaceholderItem(
+            scene_identifier=item_data["uuid"],
+            data=item_data["data"],
+            plugin=self
+        )
+
+    def create_placeholder(self, placeholder_data):
+        stub = get_stub()
+        name = "CREATEPLACEHOLDER"
+        item_id = stub.add_item(name, "COMP")
+
+        self._imprint_item(item_id, name, placeholder_data, stub)
+
+    def populate_placeholder(self, placeholder):
+        """Replace 'placeholder' with publishable instance.
+
+        Renames prepared composition name, creates publishable instance, sets
+        frame/duration settings according to DB.
+        """
+        pre_create_data = {"use_selection": True}
+        item_id, item = self._get_item(placeholder)
+        get_stub().select_items([item_id])
+        self.populate_create_placeholder(placeholder, pre_create_data)
+
+        # apply settings for populated composition
+        item_id, metadata_item = self._get_item(placeholder)
+        set_settings(True, True, [item_id])
+
+    def get_placeholder_options(self, options=None):
+        return self.get_create_plugin_options(options)

client/ayon_core/hosts/aftereffects/plugins/workfile_build/load_placeholder.py

@@ -0,0 +1,60 @@
+from ayon_core.pipeline.workfile.workfile_template_builder import (
+    LoadPlaceholderItem,
+    PlaceholderLoadMixin
+)
+from ayon_core.hosts.aftereffects.api import get_stub
+import ayon_core.hosts.aftereffects.api.workfile_template_builder as wtb
+
+
+class AEPlaceholderLoadPlugin(wtb.AEPlaceholderPlugin, PlaceholderLoadMixin):
+    identifier = "aftereffects.load"
+    label = "AfterEffects load"
+
+    def _create_placeholder_item(self, item_data) -> LoadPlaceholderItem:
+        return LoadPlaceholderItem(
+            scene_identifier=item_data["uuid"],
+            data=item_data["data"],
+            plugin=self
+        )
+
+    def create_placeholder(self, placeholder_data):
+        """Creates AE's Placeholder item in Project items list.
+
+         Sets dummy resolution/duration/fps settings, will be replaced when
+         populated.
+         """
+        stub = get_stub()
+        name = "LOADERPLACEHOLDER"
+        item_id = stub.add_placeholder(name, 1920, 1060, 25, 10)
+
+        self._imprint_item(item_id, name, placeholder_data, stub)
+
+    def populate_placeholder(self, placeholder):
+        """Use Openpype Loader from `placeholder` to create new FootageItems
+
+        New FootageItems are created, files are imported.
+        """
+        self.populate_load_placeholder(placeholder)
+        errors = placeholder.get_errors()
+        stub = get_stub()
+        if errors:
+            stub.print_msg("\n".join(errors))
+        else:
+            if not placeholder.data["keep_placeholder"]:
+                metadata = stub.get_metadata()
+                for item in metadata:
+                    if not item.get("is_placeholder"):
+                        continue
+                    scene_identifier = item.get("uuid")
+                    if (scene_identifier and
+                            scene_identifier == placeholder.scene_identifier):
+                        stub.delete_item(item["members"][0])
+                stub.remove_instance(placeholder.scene_identifier, metadata)
+
+    def get_placeholder_options(self, options=None):
+        return self.get_load_plugin_options(options)
+
+    def load_succeed(self, placeholder, container):
+        placeholder_item_id, _ = self._get_item(placeholder)
+        item_id = container.id
+        get_stub().add_item_instead_placeholder(placeholder_item_id, item_id)

client/ayon_core/hosts/hiero/api/events.py

@@ -8,6 +8,7 @@ from .lib import (
     sync_avalon_data_to_workfile,
     launch_workfiles_app,
     before_project_save,
+    apply_colorspace_project
 )
 from .tags import add_tags_to_workfile
 from .menu import update_menu_task_label
@@ -44,6 +45,8 @@ def afterNewProjectCreated(event):
         # reset workfiles startup not to open any more in session
         os.environ["WORKFILES_STARTUP"] = "0"
 
+    apply_colorspace_project()
+
 
 def beforeProjectLoad(event):
     log.info("before project load event...")
@@ -122,6 +125,7 @@ def register_hiero_events():
     except RuntimeError:
         pass
 
+
 def register_events():
     """
     Adding all callbacks.

client/ayon_core/hosts/hiero/api/lib.py

@@ -11,7 +11,6 @@ import warnings
 import json
 import ast
 import secrets
-import shutil
 import hiero
 
 from qtpy import QtWidgets, QtCore
@@ -36,9 +35,6 @@ from .constants import (
     DEFAULT_SEQUENCE_NAME,
     DEFAULT_BIN_NAME
 )
-from ayon_core.pipeline.colorspace import (
-    get_imageio_config
-)
 
 
 class _CTX:
@@ -105,9 +101,9 @@ def flatten(list_):
 
 
 def get_current_project(remove_untitled=False):
-    projects = flatten(hiero.core.projects())
+    projects = hiero.core.projects()
     if not remove_untitled:
-        return next(iter(projects))
+        return projects[0]
 
     # if remove_untitled
     for proj in projects:
@@ -1050,18 +1046,68 @@ def _set_hrox_project_knobs(doc, **knobs):
 
 
 def apply_colorspace_project():
-    project_name = get_current_project_name()
-    # get path the the active projects
-    project = get_current_project(remove_untitled=True)
-    current_file = project.path()
-
-    # close the active project
-    project.close()
+    """Apply colorspaces from settings.
 
+    Due to not being able to set the project settings through the Python API,
+    we need to do use some dubious code to find the widgets and set them. It is
+    possible to set the project settings without traversing through the widgets
+    but it involves reading the hrox files from disk with XML, so no in-memory
+    support. See https://community.foundry.com/discuss/topic/137771/change-a-project-s-default-color-transform-with-python  # noqa
+    for more details.
+    """
     # get presets for hiero
+    project_name = get_current_project_name()
     imageio = get_project_settings(project_name)["hiero"]["imageio"]
     presets = imageio.get("workfile")
 
+    # Open Project Settings UI.
+    for act in hiero.ui.registeredActions():
+        if act.objectName() == "foundry.project.settings":
+            act.trigger()
+
+    # Find widgets from their sibling label.
+    labels = {
+        "Working Space:": "workingSpace",
+        "Viewer:": "viewerLut",
+        "Thumbnails:": "thumbnailLut",
+        "Monitor Out:": "monitorOutLut",
+        "8 Bit Files:": "eightBitLut",
+        "16 Bit Files:": "sixteenBitLut",
+        "Log Files:": "logLut",
+        "Floating Point Files:": "floatLut"
+    }
+    widgets = {x: None for x in labels.values()}
+
+    def _recursive_children(widget, labels, widgets):
+        children = widget.children()
+        for count, child in enumerate(children):
+            if isinstance(child, QtWidgets.QLabel):
+                if child.text() in labels.keys():
+                    widgets[labels[child.text()]] = children[count + 1]
+            _recursive_children(child, labels, widgets)
+
+    app = QtWidgets.QApplication.instance()
+    title = "Project Settings"
+    for widget in app.topLevelWidgets():
+        if isinstance(widget, QtWidgets.QMainWindow):
+            if widget.windowTitle() != title:
+                continue
+            _recursive_children(widget, labels, widgets)
+            widget.close()
+
+    msg = "Setting value \"{}\" is not a valid option for \"{}\""
+    for key, widget in widgets.items():
+        options = [widget.itemText(i) for i in range(widget.count())]
+        setting_value = presets[key]
+        assert setting_value in options, msg.format(setting_value, key)
+        widget.setCurrentText(presets[key])
+
+    # This code block is for setting up project colorspaces for files on disk.
+    # Due to not having Python API access to set the project settings, the
+    # Foundry recommended way is to modify the hrox files on disk with XML. See
+    # this forum thread for more details;
+    # https://community.foundry.com/discuss/topic/137771/change-a-project-s-default-color-transform-with-python  # noqa
+    '''
     # backward compatibility layer
     # TODO: remove this after some time
     config_data = get_imageio_config(
@@ -1074,6 +1120,13 @@ def apply_colorspace_project():
             "ocioConfigName": "custom"
         })
 
+    # get path the the active projects
+    project = get_current_project()
+    current_file = project.path()
+
+    msg = "The project needs to be saved to disk to apply colorspace settings."
+    assert current_file, msg
+
     # save the workfile as subversion "comment:_colorspaceChange"
     split_current_file = os.path.splitext(current_file)
     copy_current_file = current_file
@@ -1116,6 +1169,7 @@ def apply_colorspace_project():
 
     # open the file as current project
     hiero.core.openProject(copy_current_file)
+    '''
 
 
 def apply_colorspace_clips():
@@ -1125,10 +1179,8 @@ def apply_colorspace_clips():
 
     # get presets for hiero
     imageio = get_project_settings(project_name)["hiero"]["imageio"]
-    from pprint import pprint
 
     presets = imageio.get("regexInputs", {}).get("inputs", {})
-    pprint(presets)
     for clip in clips:
         clip_media_source_path = clip.mediaSource().firstpath()
         clip_name = clip.name()

client/ayon_core/hosts/hiero/api/tags.py

@@ -144,7 +144,7 @@ def add_tags_to_workfile():
     # Get project task types.
     project_name = get_current_project_name()
     project_entity = ayon_api.get_project(project_name)
-    task_types = project_entity["taskType"]
+    task_types = project_entity["taskTypes"]
     nks_pres_tags["[Tasks]"] = {}
     log.debug("__ tasks: {}".format(task_types))
     for task_type in task_types:

client/ayon_core/hosts/hiero/api/workio.py

@@ -51,13 +51,12 @@ def open_file(filepath):
 
     project = hiero.core.projects()[-1]
 
-    # open project file
-    hiero.core.openProject(filepath.replace(os.path.sep, "/"))
-
-    # close previous project
-    project.close()
-
-
+    # Close previous project if its different to the current project.
+    filepath = filepath.replace(os.path.sep, "/")
+    if project.path().replace(os.path.sep, "/") != filepath:
+        # open project file
+        hiero.core.openProject(filepath)
+        project.close()
 
     return True
 

client/ayon_core/hosts/houdini/hooks/set_default_display_and_view.py

@@ -24,8 +24,14 @@ class SetDefaultDisplayView(PreLaunchHook):
         if not OCIO:
             return
 
+        # workfile settings added in '0.2.13'
         houdini_color_settings = \
-            self.data["project_settings"]["houdini"]["imageio"]["workfile"]
+            self.data["project_settings"]["houdini"]["imageio"].get("workfile")
+
+        if not houdini_color_settings:
+            self.log.info("Hook 'SetDefaultDisplayView' requires Houdini "
+                           "addon version >= '0.2.13'")
+            return
 
         if not houdini_color_settings["enabled"]:
             self.log.info(

client/ayon_core/hosts/houdini/plugins/create/create_review.py

@@ -18,8 +18,11 @@ class CreateReview(plugin.HoudiniCreator):
 
     def apply_settings(self, project_settings):
         super(CreateReview, self).apply_settings(project_settings)
-        color_settings = project_settings["houdini"]["imageio"]["workfile"]
-        if color_settings["enabled"]:
+        # workfile settings added in '0.2.13'
+        color_settings = project_settings["houdini"]["imageio"].get(
+            "workfile", {}
+        )
+        if color_settings.get("enabled"):
             self.review_color_space = color_settings.get("review_color_space")
 
     def create(self, product_name, instance_data, pre_create_data):

client/ayon_core/hosts/houdini/plugins/publish/validate_cop_output_node.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
-import sys
+import hou
 import pyblish.api
-import six
 
 from ayon_core.pipeline import PublishValidationError
 
@@ -26,28 +25,21 @@ class ValidateCopOutputNode(pyblish.api.InstancePlugin):
         invalid = self.get_invalid(instance)
         if invalid:
             raise PublishValidationError(
-                ("Output node(s) `{}` are incorrect. "
-                 "See plug-in log for details.").format(invalid),
-                title=self.label
+                "Output node '{}' is incorrect. "
+                "See plug-in log for details.".format(invalid),
+                title=self.label,
+                description=(
+                    "### Invalid COP output node\n\n"
+                    "The output node path for the instance must be set to a "
+                    "valid COP node path.\n\nSee the log for more details."
+                )
             )
 
     @classmethod
     def get_invalid(cls, instance):
+        output_node = instance.data.get("output_node")
 
-        import hou
-
-        try:
-            output_node = instance.data["output_node"]
-        except KeyError:
-            six.reraise(
-                PublishValidationError,
-                PublishValidationError(
-                    "Can't determine COP output node.",
-                    title=cls.__name__),
-                sys.exc_info()[2]
-            )
-
-        if output_node is None:
+        if not output_node:
             node = hou.node(instance.data.get("instance_node"))
             cls.log.error(
                 "COP Output node in '%s' does not exist. "
@@ -61,8 +53,8 @@ class ValidateCopOutputNode(pyblish.api.InstancePlugin):
             cls.log.error(
                 "Output node %s is not a COP node. "
                 "COP Path must point to a COP node, "
-                "instead found category type: %s"
-                % (output_node.path(), output_node.type().category().name())
+                "instead found category type: %s",
+                output_node.path(), output_node.type().category().name()
             )
             return [output_node.path()]
 
@@ -70,9 +62,7 @@ class ValidateCopOutputNode(pyblish.api.InstancePlugin):
         # is Cop2 to avoid potential edge case scenarios even though
         # the isinstance check above should be stricter than this category
         if output_node.type().category().name() != "Cop2":
-            raise PublishValidationError(
-                (
-                    "Output node {} is not of category Cop2."
-                    " This is a bug..."
-                ).format(output_node.path()),
-                title=cls.label)
+            cls.log.error(
+                "Output node %s is not of category Cop2.", output_node.path()
+            )
+            return [output_node.path()]

client/ayon_core/hosts/houdini/plugins/publish/validate_review_colorspace.py

@@ -45,9 +45,12 @@ class ValidateReviewColorspace(pyblish.api.InstancePlugin,
                                        category="houdini")
         apply_plugin_settings_automatically(cls, settings, logger=cls.log)
 
+        # workfile settings added in '0.2.13'
+        color_settings = project_settings["houdini"]["imageio"].get(
+            "workfile", {}
+        )
         # Add review color settings
-        color_settings = project_settings["houdini"]["imageio"]["workfile"]
-        if color_settings["enabled"]:
+        if color_settings.get("enabled"):
             cls.review_color_space = color_settings.get("review_color_space")
 
 

client/ayon_core/hosts/max/api/lib.py

@@ -496,9 +496,9 @@ def object_transform_set(container_children):
     """
     transform_set = {}
     for node in container_children:
-        name = f"{node.name}.transform"
+        name = f"{node}.transform"
         transform_set[name] = node.pos
-        name = f"{node.name}.scale"
+        name = f"{node}.scale"
         transform_set[name] = node.scale
     return transform_set
 
@@ -519,6 +519,36 @@ def get_plugins() -> list:
     return plugin_info_list
 
 
+def update_modifier_node_names(event, node):
+    """Update the name of the nodes after renaming
+
+    Args:
+        event (pymxs.MXSWrapperBase): Event Name (
+            Mandatory argument for rt.NodeEventCallback)
+        node (list): Event Number (
+            Mandatory argument for rt.NodeEventCallback)
+
+    """
+    containers = [
+        obj
+        for obj in rt.Objects
+        if (
+            rt.ClassOf(obj) == rt.Container
+            and rt.getUserProp(obj, "id") == "pyblish.avalon.instance"
+            and rt.getUserProp(obj, "productType") not in {
+                "workfile", "tyflow"
+            }
+        )
+    ]
+    if not containers:
+        return
+    for container in containers:
+        ayon_data = container.modifiers[0].openPypeData
+        updated_node_names = [str(node.node) for node
+                              in ayon_data.all_handles]
+        rt.setProperty(ayon_data, "sel_list", updated_node_names)
+
+
 @contextlib.contextmanager
 def render_resolution(width, height):
     """Set render resolution option during context

client/ayon_core/hosts/max/api/pipeline.py

@@ -63,6 +63,8 @@ class MaxHost(HostBase, IWorkfileHost, ILoadHost, IPublishHost):
 
         rt.callbacks.addScript(rt.Name('postWorkspaceChange'),
                                self._deferred_menu_creation)
+        rt.NodeEventCallback(
+            nameChanged=lib.update_modifier_node_names)
 
     def workfile_has_unsaved_changes(self):
         return rt.getSaveRequired()

client/ayon_core/hosts/max/plugins/load/load_max_scene.py

@@ -117,7 +117,7 @@ class MaxSceneLoader(load.LoaderPlugin):
         )
         for max_obj, obj_name in zip(max_objects, max_object_names):
             max_obj.name = f"{namespace}:{obj_name}"
-            max_container.append(rt.getNodeByName(max_obj.name))
+            max_container.append(max_obj)
         return containerise(
             name, max_container, context,
             namespace, loader=self.__class__.__name__)
@@ -158,11 +158,11 @@ class MaxSceneLoader(load.LoaderPlugin):
                                      current_max_object_names):
             max_obj.name = f"{namespace}:{obj_name}"
             max_objects.append(max_obj)
-            max_transform = f"{max_obj.name}.transform"
+            max_transform = f"{max_obj}.transform"
             if max_transform in transform_data.keys():
                 max_obj.pos = transform_data[max_transform] or 0
                 max_obj.scale = transform_data[
-                    f"{max_obj.name}.scale"] or 0
+                    f"{max_obj}.scale"] or 0
 
         update_custom_attribute_data(node, max_objects)
         lib.imprint(container["instance_node"], {

client/ayon_core/hosts/max/plugins/load/load_model_fbx.py

@@ -76,11 +76,11 @@ class FbxModelLoader(load.LoaderPlugin):
         for fbx_object in current_fbx_objects:
             fbx_object.name = f"{namespace}:{fbx_object.name}"
             fbx_objects.append(fbx_object)
-            fbx_transform = f"{fbx_object.name}.transform"
+            fbx_transform = f"{fbx_object}.transform"
             if fbx_transform in transform_data.keys():
                 fbx_object.pos = transform_data[fbx_transform] or 0
                 fbx_object.scale = transform_data[
-                    f"{fbx_object.name}.scale"] or 0
+                    f"{fbx_object}.scale"] or 0
 
         with maintained_selection():
             rt.Select(node)

client/ayon_core/hosts/max/plugins/load/load_model_obj.py

@@ -67,11 +67,11 @@ class ObjLoader(load.LoaderPlugin):
         selections = rt.GetCurrentSelection()
         for selection in selections:
             selection.name = f"{namespace}:{selection.name}"
-            selection_transform = f"{selection.name}.transform"
+            selection_transform = f"{selection}.transform"
             if selection_transform in transform_data.keys():
                 selection.pos = transform_data[selection_transform] or 0
                 selection.scale = transform_data[
-                    f"{selection.name}.scale"] or 0
+                    f"{selection}.scale"] or 0
         update_custom_attribute_data(node, selections)
         with maintained_selection():
             rt.Select(node)

client/ayon_core/hosts/max/plugins/load/load_model_usd.py

@@ -95,11 +95,11 @@ class ModelUSDLoader(load.LoaderPlugin):
         for children in asset.Children:
             children.name = f"{namespace}:{children.name}"
             usd_objects.append(children)
-            children_transform = f"{children.name}.transform"
+            children_transform = f"{children}.transform"
             if children_transform in transform_data.keys():
                 children.pos = transform_data[children_transform] or 0
                 children.scale = transform_data[
-                    f"{children.name}.scale"] or 0
+                    f"{children}.scale"] or 0
 
         asset.name = f"{namespace}:{asset.name}"
         usd_objects.append(asset)

client/ayon_core/hosts/max/plugins/load/load_pointcache_ornatrix.py

@@ -92,10 +92,10 @@ class OxAbcLoader(load.LoaderPlugin):
             abc.Parent = container
             abc.name = f"{namespace}:{abc.name}"
             ox_abc_objects.append(abc)
-            ox_transform = f"{abc.name}.transform"
+            ox_transform = f"{abc}.transform"
             if ox_transform in transform_data.keys():
                 abc.pos = transform_data[ox_transform] or 0
-                abc.scale = transform_data[f"{abc.name}.scale"] or 0
+                abc.scale = transform_data[f"{abc}.scale"] or 0
         update_custom_attribute_data(node, ox_abc_objects)
         lib.imprint(
             container["instance_node"],

client/ayon_core/hosts/max/startup/startup.ms

@@ -12,4 +12,4 @@
     max create mode
 
     python.ExecuteFile startup
-)
+)

client/ayon_core/hosts/maya/api/alembic.py

@@ -0,0 +1,305 @@
+import json
+import logging
+import os
+
+from maya import cmds  # noqa
+
+from ayon_core.hosts.maya.api.lib import evaluation
+
+log = logging.getLogger(__name__)
+
+# The maya alembic export types
+ALEMBIC_ARGS = {
+    "attr": (list, tuple),
+    "attrPrefix": (list, tuple),
+    "autoSubd": bool,
+    "dataFormat": str,
+    "endFrame": float,
+    "eulerFilter": bool,
+    "frameRange": str,  # "start end"; overrides startFrame & endFrame
+    "frameRelativeSample": float,
+    "melPerFrameCallback": str,
+    "melPostJobCallback": str,
+    "noNormals": bool,
+    "preRoll": bool,
+    "preRollStartFrame": int,
+    "pythonPerFrameCallback": str,
+    "pythonPostJobCallback": str,
+    "renderableOnly": bool,
+    "root": (list, tuple),
+    "selection": bool,
+    "startFrame": float,
+    "step": float,
+    "stripNamespaces": bool,
+    "userAttr": (list, tuple),
+    "userAttrPrefix": (list, tuple),
+    "uvWrite": bool,
+    "uvsOnly": bool,
+    "verbose": bool,
+    "wholeFrameGeo": bool,
+    "worldSpace": bool,
+    "writeColorSets": bool,
+    "writeCreases": bool,  # Maya 2015 Ext1+
+    "writeFaceSets": bool,
+    "writeUVSets": bool,   # Maya 2017+
+    "writeVisibility": bool,
+}
+
+
+def extract_alembic(
+    file,
+    attr=None,
+    attrPrefix=None,
+    dataFormat="ogawa",
+    endFrame=None,
+    eulerFilter=True,
+    frameRange="",
+    noNormals=False,
+    preRoll=False,
+    preRollStartFrame=0,
+    renderableOnly=False,
+    root=None,
+    selection=True,
+    startFrame=None,
+    step=1.0,
+    stripNamespaces=True,
+    uvWrite=True,
+    verbose=False,
+    wholeFrameGeo=False,
+    worldSpace=False,
+    writeColorSets=False,
+    writeCreases=False,
+    writeFaceSets=False,
+    writeUVSets=False,
+    writeVisibility=False
+):
+    """Extract a single Alembic Cache.
+
+    This extracts an Alembic cache using the `-selection` flag to minimize
+    the extracted content to solely what was Collected into the instance.
+
+    Arguments:
+        file (str): The filepath to write the alembic file to.
+
+        attr (list of str, optional): A specific geometric attribute to write
+            out. Defaults to [].
+
+        attrPrefix (list of str, optional): Prefix filter for determining which
+            geometric attributes to write out. Defaults to ["ABC_"].
+
+        dataFormat (str): The data format to use for the cache,
+                          defaults to "ogawa"
+
+        endFrame (float): End frame of output. Ignored if `frameRange`
+            provided.
+
+        eulerFilter (bool): When on, X, Y, and Z rotation data is filtered with
+            an Euler filter. Euler filtering helps resolve irregularities in
+            rotations especially if X, Y, and Z rotations exceed 360 degrees.
+            Defaults to True.
+
+        frameRange (tuple or str): Two-tuple with start and end frame or a
+            string formatted as: "startFrame endFrame". This argument
+            overrides `startFrame` and `endFrame` arguments.
+
+        noNormals (bool): When on, normal data from the original polygon
+            objects is not included in the exported Alembic cache file.
+
+        preRoll (bool): This frame range will not be sampled.
+            Defaults to False.
+
+        preRollStartFrame (float): The frame to start scene
+            evaluation at.  This is used to set the starting frame for time
+            dependent translations and can be used to evaluate run-up that
+            isn't actually translated. Defaults to 0.
+
+        renderableOnly (bool): When on, any non-renderable nodes or hierarchy,
+            such as hidden objects, are not included in the Alembic file.
+            Defaults to False.
+
+        root (list of str): Maya dag path which will be parented to
+            the root of the Alembic file. Defaults to [], which means the
+            entire scene will be written out.
+
+        selection (bool): Write out all all selected nodes from the
+            active selection list that are descendents of the roots specified
+            with -root. Defaults to False.
+
+        startFrame (float): Start frame of output. Ignored if `frameRange`
+            provided.
+
+        step (float): The time interval (expressed in frames) at
+            which the frame range is sampled. Additional samples around each
+            frame can be specified with -frs. Defaults to 1.0.
+
+        stripNamespaces (bool): When on, any namespaces associated with the
+            exported objects are removed from the Alembic file. For example, an
+            object with the namespace taco:foo:bar appears as bar in the
+            Alembic file.
+
+        uvWrite (bool): When on, UV data from polygon meshes and subdivision
+            objects are written to the Alembic file. Only the current UV map is
+            included.
+
+        verbose (bool): When on, outputs frame number information to the
+            Script Editor or output window during extraction.
+
+        wholeFrameGeo (bool): Data for geometry will only be written
+            out on whole frames. Defaults to False.
+
+        worldSpace (bool): When on, the top node in the node hierarchy is
+            stored as world space. By default, these nodes are stored as local
+            space. Defaults to False.
+
+        writeColorSets (bool): Write all color sets on MFnMeshes as
+            color 3 or color 4 indexed geometry parameters with face varying
+            scope. Defaults to False.
+
+        writeCreases (bool): If the mesh has crease edges or crease
+            vertices, the mesh (OPolyMesh) would now be written out as an OSubD
+            and crease info will be stored in the Alembic file. Otherwise,
+            creases info won't be preserved in Alembic file unless a custom
+            Boolean attribute SubDivisionMesh has been added to mesh node and
+            its value is true. Defaults to False.
+
+        writeFaceSets (bool): Write all Face sets on MFnMeshes.
+            Defaults to False.
+
+        writeUVSets (bool): Write all uv sets on MFnMeshes as vector
+            2 indexed geometry parameters with face varying scope. Defaults to
+            False.
+
+        writeVisibility (bool): Visibility state will be stored in
+            the Alembic file.  Otherwise everything written out is treated as
+            visible. Defaults to False.
+    """
+
+    # Ensure alembic exporter is loaded
+    cmds.loadPlugin('AbcExport', quiet=True)
+
+    # Alembic Exporter requires forward slashes
+    file = file.replace('\\', '/')
+
+    # Ensure list arguments are valid.
+    attr = attr or []
+    attrPrefix = attrPrefix or []
+    root = root or []
+
+    # Pass the start and end frame on as `frameRange` so that it
+    # never conflicts with that argument
+    if not frameRange:
+        # Fallback to maya timeline if no start or end frame provided.
+        if startFrame is None:
+            startFrame = cmds.playbackOptions(query=True,
+                                              animationStartTime=True)
+        if endFrame is None:
+            endFrame = cmds.playbackOptions(query=True,
+                                            animationEndTime=True)
+
+        # Ensure valid types are converted to frame range
+        assert isinstance(startFrame, ALEMBIC_ARGS["startFrame"])
+        assert isinstance(endFrame, ALEMBIC_ARGS["endFrame"])
+        frameRange = "{0} {1}".format(startFrame, endFrame)
+    else:
+        # Allow conversion from tuple for `frameRange`
+        if isinstance(frameRange, (list, tuple)):
+            assert len(frameRange) == 2
+            frameRange = "{0} {1}".format(frameRange[0], frameRange[1])
+
+    # Assemble options
+    options = {
+        "selection": selection,
+        "frameRange": frameRange,
+        "eulerFilter": eulerFilter,
+        "noNormals": noNormals,
+        "preRoll": preRoll,
+        "renderableOnly": renderableOnly,
+        "uvWrite": uvWrite,
+        "writeColorSets": writeColorSets,
+        "writeFaceSets": writeFaceSets,
+        "wholeFrameGeo": wholeFrameGeo,
+        "worldSpace": worldSpace,
+        "writeVisibility": writeVisibility,
+        "writeUVSets": writeUVSets,
+        "writeCreases": writeCreases,
+        "dataFormat": dataFormat,
+        "step": step,
+        "attr": attr,
+        "attrPrefix": attrPrefix,
+        "stripNamespaces": stripNamespaces,
+        "verbose": verbose,
+        "preRollStartFrame": preRollStartFrame
+    }
+
+    # Validate options
+    for key, value in options.copy().items():
+
+        # Discard unknown options
+        if key not in ALEMBIC_ARGS:
+            log.warning("extract_alembic() does not support option '%s'. "
+                        "Flag will be ignored..", key)
+            options.pop(key)
+            continue
+
+        # Validate value type
+        valid_types = ALEMBIC_ARGS[key]
+        if not isinstance(value, valid_types):
+            raise TypeError("Alembic option unsupported type: "
+                            "{0} (expected {1})".format(value, valid_types))
+
+        # Ignore empty values, like an empty string, since they mess up how
+        # job arguments are built
+        if isinstance(value, (list, tuple)):
+            value = [x for x in value if x.strip()]
+
+            # Ignore option completely if no values remaining
+            if not value:
+                options.pop(key)
+                continue
+
+            options[key] = value
+
+    # The `writeCreases` argument was changed to `autoSubd` in Maya 2018+
+    maya_version = int(cmds.about(version=True))
+    if maya_version >= 2018:
+        options['autoSubd'] = options.pop('writeCreases', False)
+
+    # Format the job string from options
+    job_args = list()
+    for key, value in options.items():
+        if isinstance(value, (list, tuple)):
+            for entry in value:
+                job_args.append("-{} {}".format(key, entry))
+        elif isinstance(value, bool):
+            # Add only when state is set to True
+            if value:
+                job_args.append("-{0}".format(key))
+        else:
+            job_args.append("-{0} {1}".format(key, value))
+
+    job_str = " ".join(job_args)
+    job_str += ' -file "%s"' % file
+
+    # Ensure output directory exists
+    parent_dir = os.path.dirname(file)
+    if not os.path.exists(parent_dir):
+        os.makedirs(parent_dir)
+
+    if verbose:
+        log.debug("Preparing Alembic export with options: %s",
+                  json.dumps(options, indent=4))
+        log.debug("Extracting Alembic with job arguments: %s", job_str)
+
+    # Perform extraction
+    print("Alembic Job Arguments : {}".format(job_str))
+
+    # Disable the parallel evaluation temporarily to ensure no buggy
+    # exports are made. (PLN-31)
+    # TODO: Make sure this actually fixes the issues
+    with evaluation("off"):
+        cmds.AbcExport(j=job_str, verbose=verbose)
+
+    if verbose:
+        log.debug("Extracted Alembic to: %s", file)
+
+    return file

client/ayon_core/hosts/maya/api/lib.py

@@ -70,37 +70,6 @@ DEFAULT_MATRIX = [1.0, 0.0, 0.0, 0.0,
                   0.0, 0.0, 1.0, 0.0,
                   0.0, 0.0, 0.0, 1.0]
 
-# The maya alembic export types
-_alembic_options = {
-    "startFrame": float,
-    "endFrame": float,
-    "frameRange": str,  # "start end"; overrides startFrame & endFrame
-    "eulerFilter": bool,
-    "frameRelativeSample": float,
-    "noNormals": bool,
-    "renderableOnly": bool,
-    "step": float,
-    "stripNamespaces": bool,
-    "uvWrite": bool,
-    "wholeFrameGeo": bool,
-    "worldSpace": bool,
-    "writeVisibility": bool,
-    "writeColorSets": bool,
-    "writeFaceSets": bool,
-    "writeCreases": bool,  # Maya 2015 Ext1+
-    "writeUVSets": bool,   # Maya 2017+
-    "dataFormat": str,
-    "root": (list, tuple),
-    "attr": (list, tuple),
-    "attrPrefix": (list, tuple),
-    "userAttr": (list, tuple),
-    "melPerFrameCallback": str,
-    "melPostJobCallback": str,
-    "pythonPerFrameCallback": str,
-    "pythonPostJobCallback": str,
-    "selection": bool
-}
-
 INT_FPS = {15, 24, 25, 30, 48, 50, 60, 44100, 48000}
 FLOAT_FPS = {23.98, 23.976, 29.97, 47.952, 59.94}
 
@@ -1346,178 +1315,6 @@ def is_visible(node,
 
     return True
 
-
-def extract_alembic(file,
-                    startFrame=None,
-                    endFrame=None,
-                    selection=True,
-                    uvWrite=True,
-                    eulerFilter=True,
-                    dataFormat="ogawa",
-                    verbose=False,
-                    **kwargs):
-    """Extract a single Alembic Cache.
-
-    This extracts an Alembic cache using the `-selection` flag to minimize
-    the extracted content to solely what was Collected into the instance.
-
-    Arguments:
-
-        startFrame (float): Start frame of output. Ignored if `frameRange`
-            provided.
-
-        endFrame (float): End frame of output. Ignored if `frameRange`
-            provided.
-
-        frameRange (tuple or str): Two-tuple with start and end frame or a
-            string formatted as: "startFrame endFrame". This argument
-            overrides `startFrame` and `endFrame` arguments.
-
-        dataFormat (str): The data format to use for the cache,
-                          defaults to "ogawa"
-
-        verbose (bool): When on, outputs frame number information to the
-            Script Editor or output window during extraction.
-
-        noNormals (bool): When on, normal data from the original polygon
-            objects is not included in the exported Alembic cache file.
-
-        renderableOnly (bool): When on, any non-renderable nodes or hierarchy,
-            such as hidden objects, are not included in the Alembic file.
-            Defaults to False.
-
-        stripNamespaces (bool): When on, any namespaces associated with the
-            exported objects are removed from the Alembic file. For example, an
-            object with the namespace taco:foo:bar appears as bar in the
-            Alembic file.
-
-        uvWrite (bool): When on, UV data from polygon meshes and subdivision
-            objects are written to the Alembic file. Only the current UV map is
-            included.
-
-        worldSpace (bool): When on, the top node in the node hierarchy is
-            stored as world space. By default, these nodes are stored as local
-            space. Defaults to False.
-
-        eulerFilter (bool): When on, X, Y, and Z rotation data is filtered with
-            an Euler filter. Euler filtering helps resolve irregularities in
-            rotations especially if X, Y, and Z rotations exceed 360 degrees.
-            Defaults to True.
-
-    """
-
-    # Ensure alembic exporter is loaded
-    cmds.loadPlugin('AbcExport', quiet=True)
-
-    # Alembic Exporter requires forward slashes
-    file = file.replace('\\', '/')
-
-    # Pass the start and end frame on as `frameRange` so that it
-    # never conflicts with that argument
-    if "frameRange" not in kwargs:
-        # Fallback to maya timeline if no start or end frame provided.
-        if startFrame is None:
-            startFrame = cmds.playbackOptions(query=True,
-                                              animationStartTime=True)
-        if endFrame is None:
-            endFrame = cmds.playbackOptions(query=True,
-                                            animationEndTime=True)
-
-        # Ensure valid types are converted to frame range
-        assert isinstance(startFrame, _alembic_options["startFrame"])
-        assert isinstance(endFrame, _alembic_options["endFrame"])
-        kwargs["frameRange"] = "{0} {1}".format(startFrame, endFrame)
-    else:
-        # Allow conversion from tuple for `frameRange`
-        frame_range = kwargs["frameRange"]
-        if isinstance(frame_range, (list, tuple)):
-            assert len(frame_range) == 2
-            kwargs["frameRange"] = "{0} {1}".format(frame_range[0],
-                                                    frame_range[1])
-
-    # Assemble options
-    options = {
-        "selection": selection,
-        "uvWrite": uvWrite,
-        "eulerFilter": eulerFilter,
-        "dataFormat": dataFormat
-    }
-    options.update(kwargs)
-
-    # Validate options
-    for key, value in options.copy().items():
-
-        # Discard unknown options
-        if key not in _alembic_options:
-            log.warning("extract_alembic() does not support option '%s'. "
-                        "Flag will be ignored..", key)
-            options.pop(key)
-            continue
-
-        # Validate value type
-        valid_types = _alembic_options[key]
-        if not isinstance(value, valid_types):
-            raise TypeError("Alembic option unsupported type: "
-                            "{0} (expected {1})".format(value, valid_types))
-
-        # Ignore empty values, like an empty string, since they mess up how
-        # job arguments are built
-        if isinstance(value, (list, tuple)):
-            value = [x for x in value if x.strip()]
-
-            # Ignore option completely if no values remaining
-            if not value:
-                options.pop(key)
-                continue
-
-            options[key] = value
-
-    # The `writeCreases` argument was changed to `autoSubd` in Maya 2018+
-    maya_version = int(cmds.about(version=True))
-    if maya_version >= 2018:
-        options['autoSubd'] = options.pop('writeCreases', False)
-
-    # Format the job string from options
-    job_args = list()
-    for key, value in options.items():
-        if isinstance(value, (list, tuple)):
-            for entry in value:
-                job_args.append("-{} {}".format(key, entry))
-        elif isinstance(value, bool):
-            # Add only when state is set to True
-            if value:
-                job_args.append("-{0}".format(key))
-        else:
-            job_args.append("-{0} {1}".format(key, value))
-
-    job_str = " ".join(job_args)
-    job_str += ' -file "%s"' % file
-
-    # Ensure output directory exists
-    parent_dir = os.path.dirname(file)
-    if not os.path.exists(parent_dir):
-        os.makedirs(parent_dir)
-
-    if verbose:
-        log.debug("Preparing Alembic export with options: %s",
-                  json.dumps(options, indent=4))
-        log.debug("Extracting Alembic with job arguments: %s", job_str)
-
-    # Perform extraction
-    print("Alembic Job Arguments : {}".format(job_str))
-
-    # Disable the parallel evaluation temporarily to ensure no buggy
-    # exports are made. (PLN-31)
-    # TODO: Make sure this actually fixes the issues
-    with evaluation("off"):
-        cmds.AbcExport(j=job_str, verbose=verbose)
-
-    if verbose:
-        log.debug("Extracted Alembic to: %s", file)
-
-    return file
-
-
 # region ID
 def get_id_required_nodes(referenced_nodes=False,
                           nodes=None,
@@ -2520,7 +2317,16 @@ def set_scene_fps(fps, update=True):
     """
 
     fps_mapping = {
+        '2': '2fps',
+        '3': '3fps',
+        '4': '4fps',
+        '5': '5fps',
+        '6': '6fps',
+        '8': '8fps',
+        '10': '10fps',
+        '12': '12fps',
         '15': 'game',
+        '16': '16fps',
         '24': 'film',
         '25': 'pal',
         '30': 'ntsc',
@@ -2612,21 +2418,24 @@ def get_fps_for_current_context():
     Returns:
         Union[int, float]: FPS value.
     """
-
-    project_name = get_current_project_name()
-    folder_path = get_current_folder_path()
-    folder_entity = ayon_api.get_folder_by_path(
-        project_name, folder_path, fields={"attrib.fps"}
-    ) or {}
-    fps = folder_entity.get("attrib", {}).get("fps")
+    task_entity = get_current_task_entity(fields={"attrib"})
+    fps = task_entity.get("attrib", {}).get("fps")
     if not fps:
-        project_entity = ayon_api.get_project(
-            project_name, fields=["attrib.fps"]
+        project_name = get_current_project_name()
+        folder_path = get_current_folder_path()
+        folder_entity = ayon_api.get_folder_by_path(
+            project_name, folder_path, fields={"attrib.fps"}
         ) or {}
-        fps = project_entity.get("attrib", {}).get("fps")
 
+        fps = folder_entity.get("attrib", {}).get("fps")
         if not fps:
-            fps = 25
+            project_entity = ayon_api.get_project(
+                project_name, fields=["attrib.fps"]
+            ) or {}
+            fps = project_entity.get("attrib", {}).get("fps")
+
+            if not fps:
+                fps = 25
 
     return convert_to_maya_fps(fps)
 

client/ayon_core/hosts/maya/api/pipeline.py

@@ -30,9 +30,11 @@ from ayon_core.pipeline import (
     register_loader_plugin_path,
     register_inventory_action_path,
     register_creator_plugin_path,
+    register_workfile_build_plugin_path,
     deregister_loader_plugin_path,
     deregister_inventory_action_path,
     deregister_creator_plugin_path,
+    deregister_workfile_build_plugin_path,
     AYON_CONTAINER_ID,
     AVALON_CONTAINER_ID,
 )
@@ -47,7 +49,6 @@ from ayon_core.hosts.maya import MAYA_ROOT_DIR
 from ayon_core.hosts.maya.lib import create_workspace_mel
 
 from . import menu, lib
-from .workfile_template_builder import MayaPlaceholderLoadPlugin
 from .workio import (
     open_file,
     save_file,
@@ -64,6 +65,7 @@ PUBLISH_PATH = os.path.join(PLUGINS_DIR, "publish")
 LOAD_PATH = os.path.join(PLUGINS_DIR, "load")
 CREATE_PATH = os.path.join(PLUGINS_DIR, "create")
 INVENTORY_PATH = os.path.join(PLUGINS_DIR, "inventory")
+WORKFILE_BUILD_PATH = os.path.join(PLUGINS_DIR, "workfile_build")
 
 AVALON_CONTAINERS = ":AVALON_CONTAINERS"
 
@@ -93,7 +95,7 @@ class MayaHost(HostBase, IWorkfileHost, ILoadHost, IPublishHost):
         register_loader_plugin_path(LOAD_PATH)
         register_creator_plugin_path(CREATE_PATH)
         register_inventory_action_path(INVENTORY_PATH)
-        self.log.info(PUBLISH_PATH)
+        register_workfile_build_plugin_path(WORKFILE_BUILD_PATH)
 
         self.log.info("Installing callbacks ... ")
         register_event_callback("init", on_init)
@@ -148,11 +150,6 @@ class MayaHost(HostBase, IWorkfileHost, ILoadHost, IPublishHost):
     def get_containers(self):
         return ls()
 
-    def get_workfile_build_placeholder_plugins(self):
-        return [
-            MayaPlaceholderLoadPlugin
-        ]
-
     @contextlib.contextmanager
     def maintained_selection(self):
         with lib.maintained_selection():
@@ -338,6 +335,7 @@ def uninstall():
     deregister_loader_plugin_path(LOAD_PATH)
     deregister_creator_plugin_path(CREATE_PATH)
     deregister_inventory_action_path(INVENTORY_PATH)
+    deregister_workfile_build_plugin_path(WORKFILE_BUILD_PATH)
 
     menu.uninstall()
 

client/ayon_core/hosts/maya/api/workfile_template_builder.py

@@ -1,5 +1,3 @@
-import json
-
 from maya import cmds
 
 from ayon_core.pipeline import (
@@ -10,16 +8,13 @@ from ayon_core.pipeline import (
 )
 from ayon_core.pipeline.workfile.workfile_template_builder import (
     TemplateAlreadyImported,
-    AbstractTemplateBuilder,
-    PlaceholderPlugin,
-    LoadPlaceholderItem,
-    PlaceholderLoadMixin,
+    AbstractTemplateBuilder
 )
 from ayon_core.tools.workfile_template_build import (
     WorkfileBuildPlaceholderDialog,
 )
 
-from .lib import read, imprint, get_reference_node, get_main_window
+from .lib import get_main_window
 
 PLACEHOLDER_SET = "PLACEHOLDERS_SET"
 
@@ -91,255 +86,6 @@ class MayaTemplateBuilder(AbstractTemplateBuilder):
         return True
 
 
-class MayaPlaceholderLoadPlugin(PlaceholderPlugin, PlaceholderLoadMixin):
-    identifier = "maya.load"
-    label = "Maya load"
-
-    def _collect_scene_placeholders(self):
-        # Cache placeholder data to shared data
-        placeholder_nodes = self.builder.get_shared_populate_data(
-            "placeholder_nodes"
-        )
-        if placeholder_nodes is None:
-            attributes = cmds.ls("*.plugin_identifier", long=True)
-            placeholder_nodes = {}
-            for attribute in attributes:
-                node_name = attribute.rpartition(".")[0]
-                placeholder_nodes[node_name] = (
-                    self._parse_placeholder_node_data(node_name)
-                )
-
-            self.builder.set_shared_populate_data(
-                "placeholder_nodes", placeholder_nodes
-            )
-        return placeholder_nodes
-
-    def _parse_placeholder_node_data(self, node_name):
-        placeholder_data = read(node_name)
-        parent_name = (
-            cmds.getAttr(node_name + ".parent", asString=True)
-            or node_name.rpartition("|")[0]
-            or ""
-        )
-        if parent_name:
-            siblings = cmds.listRelatives(parent_name, children=True)
-        else:
-            siblings = cmds.ls(assemblies=True)
-        node_shortname = node_name.rpartition("|")[2]
-        current_index = cmds.getAttr(node_name + ".index", asString=True)
-        if current_index < 0:
-            current_index = siblings.index(node_shortname)
-
-        placeholder_data.update({
-            "parent": parent_name,
-            "index": current_index
-        })
-        return placeholder_data
-
-    def _create_placeholder_name(self, placeholder_data):
-        placeholder_name_parts = placeholder_data["builder_type"].split("_")
-
-        pos = 1
-        placeholder_product_type = placeholder_data.get("product_type")
-        if placeholder_product_type is None:
-            placeholder_product_type = placeholder_data.get("family")
-
-        if placeholder_product_type:
-            placeholder_name_parts.insert(pos, placeholder_product_type)
-            pos += 1
-
-        # add loader arguments if any
-        loader_args = placeholder_data["loader_args"]
-        if loader_args:
-            loader_args = json.loads(loader_args.replace('\'', '\"'))
-            values = [v for v in loader_args.values()]
-            for value in values:
-                placeholder_name_parts.insert(pos, value)
-                pos += 1
-
-        placeholder_name = "_".join(placeholder_name_parts)
-
-        return placeholder_name.capitalize()
-
-    def _get_loaded_repre_ids(self):
-        loaded_representation_ids = self.builder.get_shared_populate_data(
-            "loaded_representation_ids"
-        )
-        if loaded_representation_ids is None:
-            try:
-                containers = cmds.sets("AVALON_CONTAINERS", q=True)
-            except ValueError:
-                containers = []
-
-            loaded_representation_ids = {
-                cmds.getAttr(container + ".representation")
-                for container in containers
-            }
-            self.builder.set_shared_populate_data(
-                "loaded_representation_ids", loaded_representation_ids
-            )
-        return loaded_representation_ids
-
-    def create_placeholder(self, placeholder_data):
-        selection = cmds.ls(selection=True)
-        if len(selection) > 1:
-            raise ValueError("More then one item are selected")
-
-        parent = selection[0] if selection else None
-
-        placeholder_data["plugin_identifier"] = self.identifier
-
-        placeholder_name = self._create_placeholder_name(placeholder_data)
-
-        placeholder = cmds.spaceLocator(name=placeholder_name)[0]
-        if parent:
-            placeholder = cmds.parent(placeholder, selection[0])[0]
-
-        imprint(placeholder, placeholder_data)
-
-        # Add helper attributes to keep placeholder info
-        cmds.addAttr(
-            placeholder,
-            longName="parent",
-            hidden=True,
-            dataType="string"
-        )
-        cmds.addAttr(
-            placeholder,
-            longName="index",
-            hidden=True,
-            attributeType="short",
-            defaultValue=-1
-        )
-
-        cmds.setAttr(placeholder + ".parent", "", type="string")
-
-    def update_placeholder(self, placeholder_item, placeholder_data):
-        node_name = placeholder_item.scene_identifier
-        new_values = {}
-        for key, value in placeholder_data.items():
-            placeholder_value = placeholder_item.data.get(key)
-            if value != placeholder_value:
-                new_values[key] = value
-                placeholder_item.data[key] = value
-
-        for key in new_values.keys():
-            cmds.deleteAttr(node_name + "." + key)
-
-        imprint(node_name, new_values)
-
-    def collect_placeholders(self):
-        output = []
-        scene_placeholders = self._collect_scene_placeholders()
-        for node_name, placeholder_data in scene_placeholders.items():
-            if placeholder_data.get("plugin_identifier") != self.identifier:
-                continue
-
-            # TODO do data validations and maybe upgrades if they are invalid
-            output.append(
-                LoadPlaceholderItem(node_name, placeholder_data, self)
-            )
-
-        return output
-
-    def populate_placeholder(self, placeholder):
-        self.populate_load_placeholder(placeholder)
-
-    def repopulate_placeholder(self, placeholder):
-        repre_ids = self._get_loaded_repre_ids()
-        self.populate_load_placeholder(placeholder, repre_ids)
-
-    def get_placeholder_options(self, options=None):
-        return self.get_load_plugin_options(options)
-
-    def post_placeholder_process(self, placeholder, failed):
-        """Cleanup placeholder after load of its corresponding representations.
-
-        Args:
-            placeholder (PlaceholderItem): Item which was just used to load
-                representation.
-            failed (bool): Loading of representation failed.
-        """
-        # Hide placeholder and add them to placeholder set
-        node = placeholder.scene_identifier
-
-        cmds.sets(node, addElement=PLACEHOLDER_SET)
-        cmds.hide(node)
-        cmds.setAttr(node + ".hiddenInOutliner", True)
-
-    def delete_placeholder(self, placeholder):
-        """Remove placeholder if building was successful"""
-        cmds.delete(placeholder.scene_identifier)
-
-    def load_succeed(self, placeholder, container):
-        self._parent_in_hierarchy(placeholder, container)
-
-    def _parent_in_hierarchy(self, placeholder, container):
-        """Parent loaded container to placeholder's parent.
-
-        ie : Set loaded content as placeholder's sibling
-
-        Args:
-            container (str): Placeholder loaded containers
-        """
-
-        if not container:
-            return
-
-        roots = cmds.sets(container, q=True) or []
-        ref_node = None
-        try:
-            ref_node = get_reference_node(roots)
-        except AssertionError as e:
-            self.log.info(e.args[0])
-
-        nodes_to_parent = []
-        for root in roots:
-            if ref_node:
-                ref_root = cmds.referenceQuery(root, nodes=True)[0]
-                ref_root = (
-                    cmds.listRelatives(ref_root, parent=True, path=True) or
-                    [ref_root]
-                )
-                nodes_to_parent.extend(ref_root)
-                continue
-            if root.endswith("_RN"):
-                # Backwards compatibility for hardcoded reference names.
-                refRoot = cmds.referenceQuery(root, n=True)[0]
-                refRoot = cmds.listRelatives(refRoot, parent=True) or [refRoot]
-                nodes_to_parent.extend(refRoot)
-            elif root not in cmds.listSets(allSets=True):
-                nodes_to_parent.append(root)
-
-            elif not cmds.sets(root, q=True):
-                return
-
-        # Move loaded nodes to correct index in outliner hierarchy
-        placeholder_form = cmds.xform(
-            placeholder.scene_identifier,
-            q=True,
-            matrix=True,
-            worldSpace=True
-        )
-        scene_parent = cmds.listRelatives(
-            placeholder.scene_identifier, parent=True, fullPath=True
-        )
-        for node in set(nodes_to_parent):
-            cmds.reorder(node, front=True)
-            cmds.reorder(node, relative=placeholder.data["index"])
-            cmds.xform(node, matrix=placeholder_form, ws=True)
-            if scene_parent:
-                cmds.parent(node, scene_parent)
-            else:
-                cmds.parent(node, world=True)
-
-        holding_sets = cmds.listSets(object=placeholder.scene_identifier)
-        if not holding_sets:
-            return
-        for holding_set in holding_sets:
-            cmds.sets(roots, forceElement=holding_set)
-
-
 def build_workfile_template(*args):
     builder = MayaTemplateBuilder(registered_host())
     builder.build_template()

client/ayon_core/hosts/maya/plugins/create/create_animation.py

@@ -1,89 +0,0 @@
-from ayon_core.hosts.maya.api import (
-    lib,
-    plugin
-)
-from ayon_core.lib import (
-    BoolDef,
-    TextDef
-)
-
-
-class CreateAnimation(plugin.MayaHiddenCreator):
-    """Animation output for character rigs
-
-    We hide the animation creator from the UI since the creation of it is
-    automated upon loading a rig. There's an inventory action to recreate it
-    for loaded rigs if by chance someone deleted the animation instance.
-    """
-    identifier = "io.openpype.creators.maya.animation"
-    name = "animationDefault"
-    label = "Animation"
-    product_type = "animation"
-    icon = "male"
-
-    write_color_sets = False
-    write_face_sets = False
-    include_parent_hierarchy = False
-    include_user_defined_attributes = False
-
-    def get_instance_attr_defs(self):
-
-        defs = lib.collect_animation_defs()
-
-        defs.extend([
-            BoolDef("writeColorSets",
-                    label="Write vertex colors",
-                    tooltip="Write vertex colors with the geometry",
-                    default=self.write_color_sets),
-            BoolDef("writeFaceSets",
-                    label="Write face sets",
-                    tooltip="Write face sets with the geometry",
-                    default=self.write_face_sets),
-            BoolDef("writeNormals",
-                    label="Write normals",
-                    tooltip="Write normals with the deforming geometry",
-                    default=True),
-            BoolDef("renderableOnly",
-                    label="Renderable Only",
-                    tooltip="Only export renderable visible shapes",
-                    default=False),
-            BoolDef("visibleOnly",
-                    label="Visible Only",
-                    tooltip="Only export dag objects visible during "
-                            "frame range",
-                    default=False),
-            BoolDef("includeParentHierarchy",
-                    label="Include Parent Hierarchy",
-                    tooltip="Whether to include parent hierarchy of nodes in "
-                            "the publish instance",
-                    default=self.include_parent_hierarchy),
-            BoolDef("worldSpace",
-                    label="World-Space Export",
-                    default=True),
-            BoolDef("includeUserDefinedAttributes",
-                    label="Include User Defined Attributes",
-                    default=self.include_user_defined_attributes),
-            TextDef("attr",
-                    label="Custom Attributes",
-                    default="",
-                    placeholder="attr1, attr2"),
-            TextDef("attrPrefix",
-                    label="Custom Attributes Prefix",
-                    placeholder="prefix1, prefix2")
-        ])
-
-        # TODO: Implement these on a Deadline plug-in instead?
-        """
-        # Default to not send to farm.
-        self.data["farm"] = False
-        self.data["priority"] = 50
-        """
-
-        return defs
-
-    def apply_settings(self, project_settings):
-        super(CreateAnimation, self).apply_settings(project_settings)
-        # Hardcoding creator to be enabled due to existing settings would
-        # disable the creator causing the creator plugin to not be
-        # discoverable.
-        self.enabled = True

client/ayon_core/hosts/maya/plugins/create/create_animation_pointcache.py

@@ -0,0 +1,139 @@
+from maya import cmds
+
+from ayon_core.hosts.maya.api import lib, plugin
+
+from ayon_core.lib import (
+    BoolDef,
+    NumberDef,
+)
+from ayon_core.pipeline import CreatedInstance
+
+
+def _get_animation_attr_defs(cls):
+    """Get Animation generic definitions."""
+    defs = lib.collect_animation_defs()
+    defs.extend(
+        [
+            BoolDef("farm", label="Submit to Farm"),
+            NumberDef("priority", label="Farm job Priority", default=50),
+            BoolDef("refresh", label="Refresh viewport during export"),
+            BoolDef(
+                "includeParentHierarchy",
+                label="Include Parent Hierarchy",
+                tooltip=(
+                    "Whether to include parent hierarchy of nodes in the "
+                    "publish instance."
+                )
+            ),
+            BoolDef(
+                "includeUserDefinedAttributes",
+                label="Include User Defined Attributes",
+                tooltip=(
+                    "Whether to include all custom maya attributes found "
+                    "on nodes as attributes in the Alembic data."
+                )
+            ),
+        ]
+    )
+
+    return defs
+
+
+def convert_legacy_alembic_creator_attributes(node_data, class_name):
+    """This is a legacy transfer of creator attributes to publish attributes
+    for ExtractAlembic/ExtractAnimation plugin.
+    """
+    publish_attributes = node_data["publish_attributes"]
+
+    if class_name in publish_attributes:
+        return node_data
+
+    attributes = [
+        "attr",
+        "attrPrefix",
+        "visibleOnly",
+        "writeColorSets",
+        "writeFaceSets",
+        "writeNormals",
+        "renderableOnly",
+        "visibleOnly",
+        "worldSpace",
+        "renderableOnly"
+    ]
+    plugin_attributes = {}
+    for attr in attributes:
+        if attr not in node_data["creator_attributes"]:
+            continue
+        value = node_data["creator_attributes"].pop(attr)
+
+        plugin_attributes[attr] = value
+
+    publish_attributes[class_name] = plugin_attributes
+
+    return node_data
+
+
+class CreateAnimation(plugin.MayaHiddenCreator):
+    """Animation output for character rigs
+
+    We hide the animation creator from the UI since the creation of it is
+    automated upon loading a rig. There's an inventory action to recreate it
+    for loaded rigs if by chance someone deleted the animation instance.
+    """
+
+    identifier = "io.openpype.creators.maya.animation"
+    name = "animationDefault"
+    label = "Animation"
+    product_type = "animation"
+    icon = "male"
+
+    write_color_sets = False
+    write_face_sets = False
+    include_parent_hierarchy = False
+    include_user_defined_attributes = False
+
+    def read_instance_node(self, node):
+        node_data = super(CreateAnimation, self).read_instance_node(node)
+        node_data = convert_legacy_alembic_creator_attributes(
+            node_data, "ExtractAnimation"
+        )
+        return node_data
+
+    def get_instance_attr_defs(self):
+        defs = super(CreateAnimation, self).get_instance_attr_defs()
+        defs += _get_animation_attr_defs(self)
+        return defs
+
+
+class CreatePointCache(plugin.MayaCreator):
+    """Alembic pointcache for animated data"""
+
+    identifier = "io.openpype.creators.maya.pointcache"
+    label = "Pointcache"
+    product_type = "pointcache"
+    icon = "gears"
+    write_color_sets = False
+    write_face_sets = False
+    include_user_defined_attributes = False
+
+    def read_instance_node(self, node):
+        node_data = super(CreatePointCache, self).read_instance_node(node)
+        node_data = convert_legacy_alembic_creator_attributes(
+            node_data, "ExtractAlembic"
+        )
+        return node_data
+
+    def get_instance_attr_defs(self):
+        defs = super(CreatePointCache, self).get_instance_attr_defs()
+        defs += _get_animation_attr_defs(self)
+        return defs
+
+    def create(self, product_name, instance_data, pre_create_data):
+        instance = super(CreatePointCache, self).create(
+            product_name, instance_data, pre_create_data
+        )
+        instance_node = instance.get("instance_node")
+
+        # For Arnold standin proxy
+        proxy_set = cmds.sets(name=instance_node + "_proxy_SET", empty=True)
+        cmds.sets(proxy_set, forceElement=instance_node)

client/ayon_core/hosts/maya/plugins/create/create_pointcache.py

@@ -1,88 +0,0 @@
-from maya import cmds
-
-from ayon_core.hosts.maya.api import (
-    lib,
-    plugin
-)
-from ayon_core.lib import (
-    BoolDef,
-    TextDef
-)
-
-
-class CreatePointCache(plugin.MayaCreator):
-    """Alembic pointcache for animated data"""
-
-    identifier = "io.openpype.creators.maya.pointcache"
-    label = "Pointcache"
-    product_type = "pointcache"
-    icon = "gears"
-    write_color_sets = False
-    write_face_sets = False
-    include_user_defined_attributes = False
-
-    def get_instance_attr_defs(self):
-
-        defs = lib.collect_animation_defs()
-
-        defs.extend([
-            BoolDef("writeColorSets",
-                    label="Write vertex colors",
-                    tooltip="Write vertex colors with the geometry",
-                    default=False),
-            BoolDef("writeFaceSets",
-                    label="Write face sets",
-                    tooltip="Write face sets with the geometry",
-                    default=False),
-            BoolDef("renderableOnly",
-                    label="Renderable Only",
-                    tooltip="Only export renderable visible shapes",
-                    default=False),
-            BoolDef("visibleOnly",
-                    label="Visible Only",
-                    tooltip="Only export dag objects visible during "
-                            "frame range",
-                    default=False),
-            BoolDef("includeParentHierarchy",
-                    label="Include Parent Hierarchy",
-                    tooltip="Whether to include parent hierarchy of nodes in "
-                            "the publish instance",
-                    default=False),
-            BoolDef("worldSpace",
-                    label="World-Space Export",
-                    default=True),
-            BoolDef("refresh",
-                    label="Refresh viewport during export",
-                    default=False),
-            BoolDef("includeUserDefinedAttributes",
-                    label="Include User Defined Attributes",
-                    default=self.include_user_defined_attributes),
-            TextDef("attr",
-                    label="Custom Attributes",
-                    default="",
-                    placeholder="attr1, attr2"),
-            TextDef("attrPrefix",
-                    label="Custom Attributes Prefix",
-                    default="",
-                    placeholder="prefix1, prefix2")
-        ])
-
-        # TODO: Implement these on a Deadline plug-in instead?
-        """
-        # Default to not send to farm.
-        self.data["farm"] = False
-        self.data["priority"] = 50
-        """
-
-        return defs
-
-    def create(self, product_name, instance_data, pre_create_data):
-
-        instance = super(CreatePointCache, self).create(
-            product_name, instance_data, pre_create_data
-        )
-        instance_node = instance.get("instance_node")
-
-        # For Arnold standin proxy
-        proxy_set = cmds.sets(name=instance_node + "_proxy_SET", empty=True)
-        cmds.sets(proxy_set, forceElement=instance_node)

client/ayon_core/hosts/maya/plugins/load/load_as_template.py

@@ -0,0 +1,39 @@
+from ayon_core.lib import (
+    BoolDef
+)
+from ayon_core.pipeline import (
+    load,
+    registered_host
+)
+from ayon_core.hosts.maya.api.workfile_template_builder import (
+    MayaTemplateBuilder
+)
+
+
+class LoadAsTemplate(load.LoaderPlugin):
+    """Load workfile as a template """
+
+    product_types = {"workfile", "mayaScene"}
+    label = "Load as template"
+    representations = ["ma", "mb"]
+    icon = "wrench"
+    color = "#775555"
+    order = 10
+
+    options = [
+        BoolDef("keep_placeholders",
+                label="Keep Placeholders",
+                default=False),
+        BoolDef("create_first_version",
+                label="Create First Version",
+                default=False),
+    ]
+
+    def load(self, context, name, namespace, data):
+        keep_placeholders = data.get("keep_placeholders", False)
+        create_first_version = data.get("create_first_version", False)
+        path = self.filepath_from_context(context)
+        builder = MayaTemplateBuilder(registered_host())
+        builder.build_template(template_path=path,
+                               keep_placeholders=keep_placeholders,
+                               create_first_version=create_first_version)

client/ayon_core/hosts/maya/plugins/publish/collect_animation.py

@@ -58,4 +58,3 @@ class CollectAnimationOutputGeometry(pyblish.api.InstancePlugin):
 
         if instance.data.get("farm"):
             instance.data["families"].append("publish.farm")
-

client/ayon_core/hosts/maya/plugins/publish/collect_user_defined_attributes.py

@@ -14,7 +14,9 @@ class CollectUserDefinedAttributes(pyblish.api.InstancePlugin):
     def process(self, instance):
 
         # Collect user defined attributes.
-        if not instance.data.get("includeUserDefinedAttributes", False):
+        if not instance.data["creator_attributes"].get(
+            "includeUserDefinedAttributes"
+        ):
             return
 
         if "out_hierarchy" in instance.data:

client/ayon_core/hosts/maya/plugins/publish/extract_assembly.py

@@ -2,7 +2,7 @@ import os
 import json
 
 from ayon_core.pipeline import publish
-from ayon_core.hosts.maya.api.lib import extract_alembic
+from ayon_core.hosts.maya.api.alembic import extract_alembic
 
 from maya import cmds
 

client/ayon_core/hosts/maya/plugins/publish/extract_pointcache.py

@@ -1,17 +1,28 @@
 import os
+from collections import OrderedDict
 
 from maya import cmds
 
 from ayon_core.pipeline import publish
+from ayon_core.hosts.maya.api.alembic import extract_alembic
 from ayon_core.hosts.maya.api.lib import (
-    extract_alembic,
     suspended_refresh,
     maintained_selection,
     iter_visible_nodes_in_range
 )
+from ayon_core.lib import (
+    BoolDef,
+    TextDef,
+    NumberDef,
+    EnumDef,
+    UISeparatorDef,
+    UILabelDef,
+)
+from ayon_core.pipeline.publish import AYONPyblishPluginMixin
+from ayon_core.pipeline import KnownPublishError
 
 
-class ExtractAlembic(publish.Extractor):
+class ExtractAlembic(publish.Extractor, AYONPyblishPluginMixin):
     """Produce an alembic of just point positions and normals.
 
     Positions and normals, uvs, creases are preserved, but nothing more,
@@ -27,8 +38,35 @@ class ExtractAlembic(publish.Extractor):
     targets = ["local", "remote"]
 
     # From settings
+    attr = []
+    attrPrefix = []
+    autoSubd = False
     bake_attributes = []
     bake_attribute_prefixes = []
+    dataFormat = "ogawa"
+    eulerFilter = False
+    melPerFrameCallback = ""
+    melPostJobCallback = ""
+    overrides = []
+    preRoll = False
+    preRollStartFrame = 0
+    pythonPerFrameCallback = ""
+    pythonPostJobCallback = ""
+    renderableOnly = False
+    stripNamespaces = True
+    uvsOnly = False
+    uvWrite = False
+    userAttr = ""
+    userAttrPrefix = ""
+    verbose = False
+    visibleOnly = False
+    wholeFrameGeo = False
+    worldSpace = True
+    writeColorSets = False
+    writeFaceSets = False
+    writeNormals = True
+    writeUVSets = False
+    writeVisibility = False
 
     def process(self, instance):
         if instance.data.get("farm"):
@@ -41,16 +79,38 @@ class ExtractAlembic(publish.Extractor):
         start = float(instance.data.get("frameStartHandle", 1))
         end = float(instance.data.get("frameEndHandle", 1))
 
-        attrs = instance.data.get("attr", "").split(";")
-        attrs = [value for value in attrs if value.strip()]
+        attribute_values = self.get_attr_values_from_data(
+            instance.data
+        )
+
+        attrs = [
+            attr.strip()
+            for attr in attribute_values.get("attr", "").split(";")
+            if attr.strip()
+        ]
         attrs += instance.data.get("userDefinedAttributes", [])
         attrs += self.bake_attributes
         attrs += ["cbId"]
 
-        attr_prefixes = instance.data.get("attrPrefix", "").split(";")
-        attr_prefixes = [value for value in attr_prefixes if value.strip()]
+        attr_prefixes = [
+            attr.strip()
+            for attr in attribute_values.get("attrPrefix", "").split(";")
+            if attr.strip()
+        ]
         attr_prefixes += self.bake_attribute_prefixes
 
+        user_attrs = [
+            attr.strip()
+            for attr in attribute_values.get("userAttr", "").split(";")
+            if attr.strip()
+        ]
+
+        user_attr_prefixes = [
+            attr.strip()
+            for attr in attribute_values.get("userAttrPrefix", "").split(";")
+            if attr.strip()
+        ]
+
         self.log.debug("Extracting pointcache..")
         dirname = self.staging_dir(instance)
 
@@ -58,28 +118,83 @@ class ExtractAlembic(publish.Extractor):
         filename = "{name}.abc".format(**instance.data)
         path = os.path.join(parent_dir, filename)
 
-        options = {
-            "step": instance.data.get("step", 1.0),
-            "attr": attrs,
-            "attrPrefix": attr_prefixes,
-            "writeVisibility": True,
-            "writeCreases": True,
-            "writeColorSets": instance.data.get("writeColorSets", False),
-            "writeFaceSets": instance.data.get("writeFaceSets", False),
-            "uvWrite": True,
-            "selection": True,
-            "worldSpace": instance.data.get("worldSpace", True)
-        }
-
+        root = None
         if not instance.data.get("includeParentHierarchy", True):
             # Set the root nodes if we don't want to include parents
             # The roots are to be considered the ones that are the actual
             # direct members of the set
-            options["root"] = roots
+            root = roots
 
-        if int(cmds.about(version=True)) >= 2017:
-            # Since Maya 2017 alembic supports multiple uv sets - write them.
-            options["writeUVSets"] = True
+        kwargs = {
+            "file": path,
+            "attr": attrs,
+            "attrPrefix": attr_prefixes,
+            "userAttr": user_attrs,
+            "userAttrPrefix": user_attr_prefixes,
+            "dataFormat": attribute_values.get("dataFormat", self.dataFormat),
+            "endFrame": end,
+            "eulerFilter": attribute_values.get(
+                "eulerFilter", self.eulerFilter
+            ),
+            "preRoll": attribute_values.get("preRoll", self.preRoll),
+            "preRollStartFrame": attribute_values.get(
+                "preRollStartFrame", self.preRollStartFrame
+            ),
+            "renderableOnly": attribute_values.get(
+                "renderableOnly", self.renderableOnly
+            ),
+            "root": root,
+            "selection": True,
+            "startFrame": start,
+            "step": instance.data.get(
+                "creator_attributes", {}
+            ).get("step", 1.0),
+            "stripNamespaces": attribute_values.get(
+                "stripNamespaces", self.stripNamespaces
+            ),
+            "uvWrite": attribute_values.get("uvWrite", self.uvWrite),
+            "verbose": attribute_values.get("verbose", self.verbose),
+            "wholeFrameGeo": attribute_values.get(
+                "wholeFrameGeo", self.wholeFrameGeo
+            ),
+            "worldSpace": attribute_values.get("worldSpace", self.worldSpace),
+            "writeColorSets": attribute_values.get(
+                "writeColorSets", self.writeColorSets
+            ),
+            "writeCreases": attribute_values.get(
+                "writeCreases", self.writeCreases
+            ),
+            "writeFaceSets": attribute_values.get(
+                "writeFaceSets", self.writeFaceSets
+            ),
+            "writeUVSets": attribute_values.get(
+                "writeUVSets", self.writeUVSets
+            ),
+            "writeVisibility": attribute_values.get(
+                "writeVisibility", self.writeVisibility
+            ),
+            "autoSubd": attribute_values.get(
+                "autoSubd", self.autoSubd
+            ),
+            "uvsOnly": attribute_values.get(
+                "uvsOnly", self.uvsOnly
+            ),
+            "writeNormals": attribute_values.get(
+                "writeNormals", self.writeNormals
+            ),
+            "melPerFrameCallback": attribute_values.get(
+                "melPerFrameCallback", self.melPerFrameCallback
+            ),
+            "melPostJobCallback": attribute_values.get(
+                "melPostJobCallback", self.melPostJobCallback
+            ),
+            "pythonPerFrameCallback": attribute_values.get(
+                "pythonPerFrameCallback", self.pythonPostJobCallback
+            ),
+            "pythonPostJobCallback": attribute_values.get(
+                "pythonPostJobCallback", self.pythonPostJobCallback
+            )
+        }
 
         if instance.data.get("visibleOnly", False):
             # If we only want to include nodes that are visible in the frame
@@ -87,20 +202,19 @@ class ExtractAlembic(publish.Extractor):
             # flag does not filter out those that are only hidden on some
             # frames as it counts "animated" or "connected" visibilities as
             # if it's always visible.
-            nodes = list(iter_visible_nodes_in_range(nodes,
-                                                     start=start,
-                                                     end=end))
+            nodes = list(
+                iter_visible_nodes_in_range(nodes, start=start, end=end)
+            )
 
         suspend = not instance.data.get("refresh", False)
         with suspended_refresh(suspend=suspend):
             with maintained_selection():
                 cmds.select(nodes, noExpand=True)
-                extract_alembic(
-                    file=path,
-                    startFrame=start,
-                    endFrame=end,
-                    **options
+                self.log.debug(
+                    "Running `extract_alembic` with the keyword arguments: "
+                    "{}".format(kwargs)
                 )
+                extract_alembic(**kwargs)
 
         if "representations" not in instance.data:
             instance.data["representations"] = []
@@ -124,21 +238,17 @@ class ExtractAlembic(publish.Extractor):
             return
 
         path = path.replace(".abc", "_proxy.abc")
+        kwargs["file"] = path
         if not instance.data.get("includeParentHierarchy", True):
             # Set the root nodes if we don't want to include parents
             # The roots are to be considered the ones that are the actual
             # direct members of the set
-            options["root"] = instance.data["proxyRoots"]
+            kwargs["root"] = instance.data["proxyRoots"]
 
         with suspended_refresh(suspend=suspend):
             with maintained_selection():
                 cmds.select(instance.data["proxy"])
-                extract_alembic(
-                    file=path,
-                    startFrame=start,
-                    endFrame=end,
-                    **options
-                )
+                extract_alembic(**kwargs)
 
         representation = {
             "name": "proxy",
@@ -152,24 +262,274 @@ class ExtractAlembic(publish.Extractor):
     def get_members_and_roots(self, instance):
         return instance[:], instance.data.get("setMembers")
 
+    @classmethod
+    def get_attribute_defs(cls):
+        if not cls.overrides:
+            return []
+
+        override_defs = OrderedDict({
+            "autoSubd": BoolDef(
+                "autoSubd",
+                label="Auto Subd",
+                default=cls.autoSubd,
+                tooltip=(
+                    "If this flag is present and the mesh has crease edges, "
+                    "crease vertices or holes, the mesh (OPolyMesh) would now "
+                    "be written out as an OSubD and crease info will be stored"
+                    " in the Alembic  file. Otherwise, creases info won't be "
+                    "preserved in Alembic file unless a custom Boolean "
+                    "attribute SubDivisionMesh has been added to mesh node and"
+                    " its value is true."
+                )
+            ),
+            "eulerFilter": BoolDef(
+                "eulerFilter",
+                label="Euler Filter",
+                default=cls.eulerFilter,
+                tooltip="Apply Euler filter while sampling rotations."
+            ),
+            "renderableOnly": BoolDef(
+                "renderableOnly",
+                label="Renderable Only",
+                default=cls.renderableOnly,
+                tooltip="Only export renderable visible shapes."
+            ),
+            "stripNamespaces": BoolDef(
+                "stripNamespaces",
+                label="Strip Namespaces",
+                default=cls.stripNamespaces,
+                tooltip=(
+                    "Namespaces will be stripped off of the node before being "
+                    "written to Alembic."
+                )
+            ),
+            "uvsOnly": BoolDef(
+                "uvsOnly",
+                label="UVs Only",
+                default=cls.uvsOnly,
+                tooltip=(
+                    "If this flag is present, only uv data for PolyMesh and "
+                    "SubD shapes will be written to the Alembic file."
+                )
+            ),
+            "uvWrite": BoolDef(
+                "uvWrite",
+                label="UV Write",
+                default=cls.uvWrite,
+                tooltip=(
+                    "Uv data for PolyMesh and SubD shapes will be written to "
+                    "the Alembic file."
+                )
+            ),
+            "verbose": BoolDef(
+                "verbose",
+                label="Verbose",
+                default=cls.verbose,
+                tooltip="Prints the current frame that is being evaluated."
+            ),
+            "visibleOnly": BoolDef(
+                "visibleOnly",
+                label="Visible Only",
+                default=cls.visibleOnly,
+                tooltip="Only export dag objects visible during frame range."
+            ),
+            "wholeFrameGeo": BoolDef(
+                "wholeFrameGeo",
+                label="Whole Frame Geo",
+                default=cls.wholeFrameGeo,
+                tooltip=(
+                    "Data for geometry will only be written out on whole "
+                    "frames."
+                )
+            ),
+            "worldSpace": BoolDef(
+                "worldSpace",
+                label="World Space",
+                default=cls.worldSpace,
+                tooltip="Any root nodes will be stored in world space."
+            ),
+            "writeColorSets": BoolDef(
+                "writeColorSets",
+                label="Write Color Sets",
+                default=cls.writeColorSets,
+                tooltip="Write vertex colors with the geometry."
+            ),
+            "writeFaceSets": BoolDef(
+                "writeFaceSets",
+                label="Write Face Sets",
+                default=cls.writeFaceSets,
+                tooltip="Write face sets with the geometry."
+            ),
+            "writeNormals": BoolDef(
+                "writeNormals",
+                label="Write Normals",
+                default=cls.writeNormals,
+                tooltip="Write normals with the deforming geometry."
+            ),
+            "writeUVSets": BoolDef(
+                "writeUVSets",
+                label="Write UV Sets",
+                default=cls.writeUVSets,
+                tooltip=(
+                    "Write all uv sets on MFnMeshes as vector 2 indexed "
+                    "geometry parameters with face varying scope."
+                )
+            ),
+            "writeVisibility": BoolDef(
+                "writeVisibility",
+                label="Write Visibility",
+                default=cls.writeVisibility,
+                tooltip=(
+                    "Visibility state will be stored in the Alembic file. "
+                    "Otherwise everything written out is treated as visible."
+                )
+            ),
+            "preRoll": BoolDef(
+                "preRoll",
+                label="Pre Roll",
+                default=cls.preRoll,
+                tooltip="This frame range will not be sampled."
+            ),
+            "preRollStartFrame": NumberDef(
+                "preRollStartFrame",
+                label="Pre Roll Start Frame",
+                tooltip=(
+                    "The frame to start scene evaluation at. This is used"
+                    " to set the starting frame for time dependent "
+                    "translations and can be used to evaluate run-up that"
+                    " isn't actually translated."
+                ),
+                default=cls.preRollStartFrame
+            ),
+            "dataFormat": EnumDef(
+                "dataFormat",
+                label="Data Format",
+                items=["ogawa", "HDF"],
+                default=cls.dataFormat,
+                tooltip="The data format to use to write the file."
+            ),
+            "attr": TextDef(
+                "attr",
+                label="Custom Attributes",
+                placeholder="attr1; attr2; ...",
+                default=cls.attr,
+                tooltip=(
+                    "Attributes matching by name will be included in the "
+                    "Alembic export. Attributes should be separated by "
+                    "semi-colon `;`"
+                )
+            ),
+            "attrPrefix": TextDef(
+                "attrPrefix",
+                label="Custom Attributes Prefix",
+                placeholder="prefix1; prefix2; ...",
+                default=cls.attrPrefix,
+                tooltip=(
+                    "Attributes starting with these prefixes will be included "
+                    "in the Alembic export. Attributes should be separated by "
+                    "semi-colon `;`"
+                )
+            ),
+            "userAttr": TextDef(
+                "userAttr",
+                label="User Attr",
+                placeholder="attr1; attr2; ...",
+                default=cls.userAttr,
+                tooltip=(
+                    "Attributes matching by name will be included in the "
+                    "Alembic export. Attributes should be separated by "
+                    "semi-colon `;`"
+                )
+            ),
+            "userAttrPrefix": TextDef(
+                "userAttrPrefix",
+                label="User Attr Prefix",
+                placeholder="prefix1; prefix2; ...",
+                default=cls.userAttrPrefix,
+                tooltip=(
+                    "Attributes starting with these prefixes will be included "
+                    "in the Alembic export. Attributes should be separated by "
+                    "semi-colon `;`"
+                )
+            ),
+            "melPerFrameCallback": TextDef(
+                "melPerFrameCallback",
+                label="Mel Per Frame Callback",
+                default=cls.melPerFrameCallback,
+                tooltip=(
+                    "When each frame (and the static frame) is evaluated the "
+                    "string specified is evaluated as a Mel command."
+                )
+            ),
+            "melPostJobCallback": TextDef(
+                "melPostJobCallback",
+                label="Mel Post Job Callback",
+                default=cls.melPostJobCallback,
+                tooltip=(
+                    "When the translation has finished the string specified "
+                    "is evaluated as a Mel command."
+                )
+            ),
+            "pythonPerFrameCallback": TextDef(
+                "pythonPerFrameCallback",
+                label="Python Per Frame Callback",
+                default=cls.pythonPerFrameCallback,
+                tooltip=(
+                    "When each frame (and the static frame) is evaluated the "
+                    "string specified is evaluated as a python command."
+                )
+            ),
+            "pythonPostJobCallback": TextDef(
+                "pythonPostJobCallback",
+                label="Python Post Frame Callback",
+                default=cls.pythonPostJobCallback,
+                tooltip=(
+                    "When the translation has finished the string specified "
+                    "is evaluated as a python command."
+                )
+            )
+        })
+
+        defs = super(ExtractAlembic, cls).get_attribute_defs()
+
+        defs.extend([
+            UISeparatorDef("sep_alembic_options"),
+            UILabelDef("Alembic Options"),
+        ])
+
+        # The Arguments that can be modified by the Publisher
+        overrides = set(cls.overrides)
+        for key, value in override_defs.items():
+            if key not in overrides:
+                continue
+
+            defs.append(value)
+
+        defs.append(
+            UISeparatorDef("sep_alembic_options_end")
+        )
+
+        return defs
+
 
 class ExtractAnimation(ExtractAlembic):
-    label = "Extract Animation"
+    label = "Extract Animation (Alembic)"
     families = ["animation"]
 
     def get_members_and_roots(self, instance):
-
         # Collect the out set nodes
         out_sets = [node for node in instance if node.endswith("out_SET")]
         if len(out_sets) != 1:
-            raise RuntimeError("Couldn't find exactly one out_SET: "
-                               "{0}".format(out_sets))
+            raise KnownPublishError(
+                "Couldn't find exactly one out_SET: {0}".format(out_sets)
+            )
         out_set = out_sets[0]
-        roots = cmds.sets(out_set, query=True)
+        roots = cmds.sets(out_set, query=True) or []
 
         # Include all descendants
-        nodes = roots + cmds.listRelatives(roots,
-                                           allDescendents=True,
-                                           fullPath=True) or []
+        nodes = roots
+        nodes += cmds.listRelatives(
+            roots, allDescendents=True, fullPath=True
+        ) or []
 
         return nodes, roots

client/ayon_core/hosts/maya/plugins/publish/extract_proxy_abc.py

@@ -3,8 +3,8 @@ import os
 from maya import cmds
 
 from ayon_core.pipeline import publish
+from ayon_core.hosts.maya.api.alembic import extract_alembic
 from ayon_core.hosts.maya.api.lib import (
-    extract_alembic,
     suspended_refresh,
     maintained_selection,
     iter_visible_nodes_in_range

client/ayon_core/hosts/maya/plugins/publish/extract_unreal_skeletalmesh_abc.py

@@ -5,8 +5,8 @@ import os
 from maya import cmds  # noqa
 
 from ayon_core.pipeline import publish
+from ayon_core.hosts.maya.api.alembic import extract_alembic
 from ayon_core.hosts.maya.api.lib import (
-    extract_alembic,
     suspended_refresh,
     maintained_selection
 )

client/ayon_core/hosts/maya/plugins/publish/extract_workfile_xgen.py

@@ -5,7 +5,7 @@ import copy
 from maya import cmds
 
 import pyblish.api
-from ayon_core.hosts.maya.api.lib import extract_alembic
+from ayon_core.hosts.maya.api.alembic import extract_alembic
 from ayon_core.pipeline import publish
 
 

client/ayon_core/hosts/maya/plugins/publish/validate_alembic_options_defaults.py

@@ -0,0 +1,98 @@
+import pyblish.api
+
+from ayon_core.pipeline import OptionalPyblishPluginMixin
+from ayon_core.pipeline.publish import RepairAction, PublishValidationError
+
+
+class ValidateAlembicDefaultsPointcache(
+    pyblish.api.InstancePlugin, OptionalPyblishPluginMixin
+):
+    """Validate the attributes on the instance are defaults.
+
+    The defaults are defined in the project settings.
+    """
+
+    order = pyblish.api.ValidatorOrder
+    families = ["pointcache"]
+    hosts = ["maya"]
+    label = "Validate Alembic Options Defaults"
+    actions = [RepairAction]
+    optional = True
+
+    plugin_name = "ExtractAlembic"
+
+    @classmethod
+    def _get_settings(cls, context):
+        maya_settings = context.data["project_settings"]["maya"]
+        settings = maya_settings["publish"]["ExtractAlembic"]
+        return settings
+
+    @classmethod
+    def _get_publish_attributes(cls, instance):
+        attributes = instance.data["publish_attributes"][
+            cls.plugin_name(
+                instance.data["publish_attributes"]
+            )
+        ]
+
+        return attributes
+
+    def process(self, instance):
+        if not self.is_active(instance.data):
+            return
+
+        settings = self._get_settings(instance.context)
+
+        attributes = self._get_publish_attributes(instance)
+
+        msg = (
+            "Alembic Extract setting \"{}\" is not the default value:"
+            "\nCurrent: {}"
+            "\nDefault Value: {}\n"
+        )
+        errors = []
+        for key, value in attributes.items():
+            default_value = settings[key]
+
+            # Lists are best to compared sorted since we cant rely on the order
+            # of the items.
+            if isinstance(value, list):
+                value = sorted(value)
+                default_value = sorted(default_value)
+
+            if value != default_value:
+                errors.append(msg.format(key, value, default_value))
+
+        if errors:
+            raise PublishValidationError("\n".join(errors))
+
+    @classmethod
+    def repair(cls, instance):
+        # Find create instance twin.
+        create_context = instance.context.data["create_context"]
+        create_instance = create_context.get_instance_by_id(
+            instance.data["instance_id"]
+        )
+
+        # Set the settings values on the create context then save to workfile.
+        publish_attributes = instance.data["publish_attributes"]
+        plugin_name = cls.plugin_name(publish_attributes)
+        attributes = cls._get_publish_attributes(instance)
+        settings = cls._get_settings(instance.context)
+        create_publish_attributes = create_instance.data["publish_attributes"]
+        for key in attributes:
+            create_publish_attributes[plugin_name][key] = settings[key]
+
+        create_context.save_changes()
+
+
+class ValidateAlembicDefaultsAnimation(
+    ValidateAlembicDefaultsPointcache
+):
+    """Validate the attributes on the instance are defaults.
+
+    The defaults are defined in the project settings.
+    """
+    label = "Validate Alembic Options   Defaults"
+    families = ["animation"]
+    plugin_name = "ExtractAnimation"

client/ayon_core/hosts/maya/plugins/publish/validate_rendersettings.py

@@ -10,6 +10,7 @@ from ayon_core.pipeline.publish import (
     RepairAction,
     ValidateContentsOrder,
     PublishValidationError,
+    OptionalPyblishPluginMixin
 )
 from ayon_core.hosts.maya.api import lib
 from ayon_core.hosts.maya.api.lib_rendersettings import RenderSettings
@@ -37,7 +38,8 @@ def get_redshift_image_format_labels():
     return mel.eval("{0}={0}".format(var))
 
 
-class ValidateRenderSettings(pyblish.api.InstancePlugin):
+class ValidateRenderSettings(pyblish.api.InstancePlugin,
+                             OptionalPyblishPluginMixin):
     """Validates the global render settings
 
     * File Name Prefix must start with: `<Scene>`
@@ -55,7 +57,7 @@ class ValidateRenderSettings(pyblish.api.InstancePlugin):
     * Frame Padding must be:
         * default: 4
 
-    * Animation must be toggle on, in Render Settings - Common tab:
+    * Animation must be toggled on, in Render Settings - Common tab:
         * vray: Animation on standard of specific
         * arnold: Frame / Animation ext: Any choice without "(Single Frame)"
         * redshift: Animation toggled on
@@ -67,10 +69,11 @@ class ValidateRenderSettings(pyblish.api.InstancePlugin):
     """
 
     order = ValidateContentsOrder
-    label = "Render Settings"
+    label = "Validate Render Settings"
     hosts = ["maya"]
     families = ["renderlayer"]
     actions = [RepairAction]
+    optional = True
 
     ImagePrefixes = {
         'mentalray': 'defaultRenderGlobals.imageFilePrefix',
@@ -112,6 +115,8 @@ class ValidateRenderSettings(pyblish.api.InstancePlugin):
     DEFAULT_PREFIX = "<Scene>/<RenderLayer>/<RenderLayer>_<RenderPass>"
 
     def process(self, instance):
+        if not self.is_active(instance.data):
+            return
 
         invalid = self.get_invalid(instance)
         if invalid:

client/ayon_core/hosts/maya/plugins/workfile_build/load_placeholder.py

@@ -0,0 +1,270 @@
+import json
+
+from maya import cmds
+
+from ayon_core.pipeline.workfile.workfile_template_builder import (
+    PlaceholderPlugin,
+    LoadPlaceholderItem,
+    PlaceholderLoadMixin,
+)
+from ayon_core.hosts.maya.api.lib import (
+    read,
+    imprint,
+    get_reference_node
+)
+from ayon_core.hosts.maya.api.workfile_template_builder import PLACEHOLDER_SET
+
+
+class MayaPlaceholderLoadPlugin(PlaceholderPlugin, PlaceholderLoadMixin):
+    identifier = "maya.load"
+    label = "Maya load"
+
+    def _collect_scene_placeholders(self):
+        # Cache placeholder data to shared data
+        placeholder_nodes = self.builder.get_shared_populate_data(
+            "placeholder_nodes"
+        )
+        if placeholder_nodes is None:
+            attributes = cmds.ls("*.plugin_identifier", long=True)
+            placeholder_nodes = {}
+            for attribute in attributes:
+                node_name = attribute.rpartition(".")[0]
+                placeholder_nodes[node_name] = (
+                    self._parse_placeholder_node_data(node_name)
+                )
+
+            self.builder.set_shared_populate_data(
+                "placeholder_nodes", placeholder_nodes
+            )
+        return placeholder_nodes
+
+    def _parse_placeholder_node_data(self, node_name):
+        placeholder_data = read(node_name)
+        parent_name = (
+            cmds.getAttr(node_name + ".parent", asString=True)
+            or node_name.rpartition("|")[0]
+            or ""
+        )
+        if parent_name:
+            siblings = cmds.listRelatives(parent_name, children=True)
+        else:
+            siblings = cmds.ls(assemblies=True)
+        node_shortname = node_name.rpartition("|")[2]
+        current_index = cmds.getAttr(node_name + ".index", asString=True)
+        if current_index < 0:
+            current_index = siblings.index(node_shortname)
+
+        placeholder_data.update({
+            "parent": parent_name,
+            "index": current_index
+        })
+        return placeholder_data
+
+    def _create_placeholder_name(self, placeholder_data):
+        placeholder_name_parts = placeholder_data["builder_type"].split("_")
+
+        pos = 1
+        placeholder_product_type = placeholder_data.get("product_type")
+        if placeholder_product_type is None:
+            placeholder_product_type = placeholder_data.get("family")
+
+        if placeholder_product_type:
+            placeholder_name_parts.insert(pos, placeholder_product_type)
+            pos += 1
+
+        # add loader arguments if any
+        loader_args = placeholder_data["loader_args"]
+        if loader_args:
+            loader_args = json.loads(loader_args.replace('\'', '\"'))
+            values = [v for v in loader_args.values()]
+            for value in values:
+                placeholder_name_parts.insert(pos, value)
+                pos += 1
+
+        placeholder_name = "_".join(placeholder_name_parts)
+
+        return placeholder_name.capitalize()
+
+    def _get_loaded_repre_ids(self):
+        loaded_representation_ids = self.builder.get_shared_populate_data(
+            "loaded_representation_ids"
+        )
+        if loaded_representation_ids is None:
+            try:
+                containers = cmds.sets("AVALON_CONTAINERS", q=True)
+            except ValueError:
+                containers = []
+
+            loaded_representation_ids = {
+                cmds.getAttr(container + ".representation")
+                for container in containers
+            }
+            self.builder.set_shared_populate_data(
+                "loaded_representation_ids", loaded_representation_ids
+            )
+        return loaded_representation_ids
+
+    def create_placeholder(self, placeholder_data):
+        selection = cmds.ls(selection=True)
+        if len(selection) > 1:
+            raise ValueError("More then one item are selected")
+
+        parent = selection[0] if selection else None
+
+        placeholder_data["plugin_identifier"] = self.identifier
+
+        placeholder_name = self._create_placeholder_name(placeholder_data)
+
+        placeholder = cmds.spaceLocator(name=placeholder_name)[0]
+        if parent:
+            placeholder = cmds.parent(placeholder, selection[0])[0]
+
+        imprint(placeholder, placeholder_data)
+
+        # Add helper attributes to keep placeholder info
+        cmds.addAttr(
+            placeholder,
+            longName="parent",
+            hidden=True,
+            dataType="string"
+        )
+        cmds.addAttr(
+            placeholder,
+            longName="index",
+            hidden=True,
+            attributeType="short",
+            defaultValue=-1
+        )
+
+        cmds.setAttr(placeholder + ".parent", "", type="string")
+
+    def update_placeholder(self, placeholder_item, placeholder_data):
+        node_name = placeholder_item.scene_identifier
+        new_values = {}
+        for key, value in placeholder_data.items():
+            placeholder_value = placeholder_item.data.get(key)
+            if value != placeholder_value:
+                new_values[key] = value
+                placeholder_item.data[key] = value
+
+        for key in new_values.keys():
+            cmds.deleteAttr(node_name + "." + key)
+
+        imprint(node_name, new_values)
+
+    def collect_placeholders(self):
+        output = []
+        scene_placeholders = self._collect_scene_placeholders()
+        for node_name, placeholder_data in scene_placeholders.items():
+            if placeholder_data.get("plugin_identifier") != self.identifier:
+                continue
+
+            # TODO do data validations and maybe upgrades if they are invalid
+            output.append(
+                LoadPlaceholderItem(node_name, placeholder_data, self)
+            )
+
+        return output
+
+    def populate_placeholder(self, placeholder):
+        self.populate_load_placeholder(placeholder)
+
+    def repopulate_placeholder(self, placeholder):
+        repre_ids = self._get_loaded_repre_ids()
+        self.populate_load_placeholder(placeholder, repre_ids)
+
+    def get_placeholder_options(self, options=None):
+        return self.get_load_plugin_options(options)
+
+    def post_placeholder_process(self, placeholder, failed):
+        """Cleanup placeholder after load of its corresponding representations.
+
+        Args:
+            placeholder (PlaceholderItem): Item which was just used to load
+                representation.
+            failed (bool): Loading of representation failed.
+        """
+        # Hide placeholder and add them to placeholder set
+        node = placeholder.scene_identifier
+
+        # If we just populate the placeholders from current scene, the
+        # placeholder set will not be created so account for that.
+        if not cmds.objExists(PLACEHOLDER_SET):
+            cmds.sets(name=PLACEHOLDER_SET, empty=True)
+
+        cmds.sets(node, addElement=PLACEHOLDER_SET)
+        cmds.hide(node)
+        cmds.setAttr(node + ".hiddenInOutliner", True)
+
+    def delete_placeholder(self, placeholder):
+        """Remove placeholder if building was successful"""
+        cmds.delete(placeholder.scene_identifier)
+
+    def load_succeed(self, placeholder, container):
+        self._parent_in_hierarchy(placeholder, container)
+
+    def _parent_in_hierarchy(self, placeholder, container):
+        """Parent loaded container to placeholder's parent.
+
+        ie : Set loaded content as placeholder's sibling
+
+        Args:
+            container (str): Placeholder loaded containers
+        """
+
+        if not container:
+            return
+
+        roots = cmds.sets(container, q=True) or []
+        ref_node = None
+        try:
+            ref_node = get_reference_node(roots)
+        except AssertionError as e:
+            self.log.info(e.args[0])
+
+        nodes_to_parent = []
+        for root in roots:
+            if ref_node:
+                ref_root = cmds.referenceQuery(root, nodes=True)[0]
+                ref_root = (
+                    cmds.listRelatives(ref_root, parent=True, path=True) or
+                    [ref_root]
+                )
+                nodes_to_parent.extend(ref_root)
+                continue
+            if root.endswith("_RN"):
+                # Backwards compatibility for hardcoded reference names.
+                refRoot = cmds.referenceQuery(root, n=True)[0]
+                refRoot = cmds.listRelatives(refRoot, parent=True) or [refRoot]
+                nodes_to_parent.extend(refRoot)
+            elif root not in cmds.listSets(allSets=True):
+                nodes_to_parent.append(root)
+
+            elif not cmds.sets(root, q=True):
+                return
+
+        # Move loaded nodes to correct index in outliner hierarchy
+        placeholder_form = cmds.xform(
+            placeholder.scene_identifier,
+            q=True,
+            matrix=True,
+            worldSpace=True
+        )
+        scene_parent = cmds.listRelatives(
+            placeholder.scene_identifier, parent=True, fullPath=True
+        )
+        for node in set(nodes_to_parent):
+            cmds.reorder(node, front=True)
+            cmds.reorder(node, relative=placeholder.data["index"])
+            cmds.xform(node, matrix=placeholder_form, ws=True)
+            if scene_parent:
+                cmds.parent(node, scene_parent)
+            else:
+                if cmds.listRelatives(node, parent=True):
+                    cmds.parent(node, world=True)
+
+        holding_sets = cmds.listSets(object=placeholder.scene_identifier)
+        if not holding_sets:
+            return
+        for holding_set in holding_sets:
+            cmds.sets(roots, forceElement=holding_set)

client/ayon_core/hosts/maya/tools/mayalookassigner/vray_proxies.py

@@ -7,7 +7,7 @@ from maya import cmds
 import ayon_api
 
 from ayon_core.pipeline import get_current_project_name
-import ayon_core.hosts.maya.lib as maya_lib
+import ayon_core.hosts.maya.api.lib as maya_lib
 from . import lib
 from .alembic import get_alembic_ids_cache
 

client/ayon_core/hosts/nuke/api/lib.py

@@ -1495,18 +1495,28 @@ class WorkfileSettings(object):
 
         filter_knobs = [
             "viewerProcess",
-            "wipe_position"
+            "wipe_position",
+            "monitorOutOutputTransform"
         ]
 
+        display, viewer = get_viewer_config_from_string(
+            viewer_dict["viewerProcess"]
+        )
+        viewer_process = create_viewer_profile_string(
+            viewer, display, path_like=False
+        )
+        display, viewer = get_viewer_config_from_string(
+            viewer_dict["output_transform"]
+        )
+        output_transform = create_viewer_profile_string(
+            viewer, display, path_like=False
+        )
         erased_viewers = []
         for v in nuke.allNodes(filter="Viewer"):
             # set viewProcess to preset from settings
-            v["viewerProcess"].setValue(
-                str(viewer_dict["viewerProcess"])
-            )
+            v["viewerProcess"].setValue(viewer_process)
 
-            if str(viewer_dict["viewerProcess"]) \
-                    not in v["viewerProcess"].value():
+            if viewer_process not in v["viewerProcess"].value():
                 copy_inputs = v.dependencies()
                 copy_knobs = {k: v[k].value() for k in v.knobs()
                               if k not in filter_knobs}
@@ -1524,11 +1534,11 @@ class WorkfileSettings(object):
 
                 # set copied knobs
                 for k, v in copy_knobs.items():
-                    print(k, v)
                     nv[k].setValue(v)
 
                 # set viewerProcess
-                nv["viewerProcess"].setValue(str(viewer_dict["viewerProcess"]))
+                nv["viewerProcess"].setValue(viewer_process)
+                nv["monitorOutOutputTransform"].setValue(output_transform)
 
         if erased_viewers:
             log.warning(
@@ -1547,7 +1557,6 @@ class WorkfileSettings(object):
             host_name="nuke"
         )
 
-        viewer_process_settings = imageio_host["viewer"]["viewerProcess"]
         workfile_settings = imageio_host["workfile"]
         color_management = workfile_settings["color_management"]
         native_ocio_config = workfile_settings["native_ocio_config"]
@@ -1574,29 +1583,6 @@ class WorkfileSettings(object):
                     residual_path
                 ))
 
-        # get monitor lut from settings respecting Nuke version differences
-        monitor_lut = workfile_settings["thumbnail_space"]
-        monitor_lut_data = self._get_monitor_settings(
-            viewer_process_settings, monitor_lut
-        )
-        monitor_lut_data["workingSpaceLUT"] = (
-            workfile_settings["working_space"]
-        )
-
-        # then set the rest
-        for knob, value_ in monitor_lut_data.items():
-            # skip unfilled ocio config path
-            # it will be dict in value
-            if isinstance(value_, dict):
-                continue
-            # skip empty values
-            if not value_:
-                continue
-            if self._root_node[knob].value() not in value_:
-                self._root_node[knob].setValue(str(value_))
-                log.debug("nuke.root()['{}'] changed to: {}".format(
-                    knob, value_))
-
         # set ocio config path
         if config_data:
             config_path = config_data["path"].replace("\\", "/")
@@ -1611,6 +1597,31 @@ class WorkfileSettings(object):
             if correct_settings:
                 self._set_ocio_config_path_to_workfile(config_data)
 
+        # get monitor lut from settings respecting Nuke version differences
+        monitor_lut_data = self._get_monitor_settings(
+            workfile_settings["monitor_out_lut"],
+            workfile_settings["monitor_lut"]
+        )
+        monitor_lut_data.update({
+            "workingSpaceLUT": workfile_settings["working_space"],
+            "int8Lut": workfile_settings["int_8_lut"],
+            "int16Lut": workfile_settings["int_16_lut"],
+            "logLut": workfile_settings["log_lut"],
+            "floatLut": workfile_settings["float_lut"]
+        })
+
+        # then set the rest
+        for knob, value_ in monitor_lut_data.items():
+            # skip unfilled ocio config path
+            # it will be dict in value
+            if isinstance(value_, dict):
+                continue
+            # skip empty values
+            if not value_:
+                continue
+            self._root_node[knob].setValue(str(value_))
+            log.debug("nuke.root()['{}'] changed to: {}".format(knob, value_))
+
     def _get_monitor_settings(self, viewer_lut, monitor_lut):
         """ Get monitor settings from viewer and monitor lut
 

client/ayon_core/hosts/nuke/api/pipeline.py

@@ -18,6 +18,7 @@ from ayon_core.pipeline import (
     register_loader_plugin_path,
     register_creator_plugin_path,
     register_inventory_action_path,
+    register_workfile_build_plugin_path,
     AYON_INSTANCE_ID,
     AVALON_INSTANCE_ID,
     AVALON_CONTAINER_ID,
@@ -52,8 +53,6 @@ from .lib import (
     MENU_LABEL,
 )
 from .workfile_template_builder import (
-    NukePlaceholderLoadPlugin,
-    NukePlaceholderCreatePlugin,
     build_workfile_template,
     create_placeholder,
     update_placeholder,
@@ -76,6 +75,7 @@ PUBLISH_PATH = os.path.join(PLUGINS_DIR, "publish")
 LOAD_PATH = os.path.join(PLUGINS_DIR, "load")
 CREATE_PATH = os.path.join(PLUGINS_DIR, "create")
 INVENTORY_PATH = os.path.join(PLUGINS_DIR, "inventory")
+WORKFILE_BUILD_PATH = os.path.join(PLUGINS_DIR, "workfile_build")
 
 # registering pyblish gui regarding settings in presets
 if os.getenv("PYBLISH_GUI", None):
@@ -105,18 +105,11 @@ class NukeHost(
     def get_workfile_extensions(self):
         return file_extensions()
 
-    def get_workfile_build_placeholder_plugins(self):
-        return [
-            NukePlaceholderLoadPlugin,
-            NukePlaceholderCreatePlugin
-        ]
-
     def get_containers(self):
         return ls()
 
     def install(self):
-        ''' Installing all requarements for Nuke host
-        '''
+        """Installing all requirements for Nuke host"""
 
         pyblish.api.register_host("nuke")
 
@@ -125,6 +118,7 @@ class NukeHost(
         register_loader_plugin_path(LOAD_PATH)
         register_creator_plugin_path(CREATE_PATH)
         register_inventory_action_path(INVENTORY_PATH)
+        register_workfile_build_plugin_path(WORKFILE_BUILD_PATH)
 
         # Register AYON event for workfiles loading.
         register_event_callback("workio.open_file", check_inventory_versions)
@@ -178,7 +172,6 @@ def add_nuke_callbacks():
     # set apply all workfile settings on script load and save
     nuke.addOnScriptLoad(WorkfileSettings().set_context_settings)
 
-
     if nuke_settings["dirmap"]["enabled"]:
         log.info("Added Nuke's dir-mapping callback ...")
         # Add dirmap for file paths.

client/ayon_core/hosts/nuke/api/plugin.py

@@ -1151,7 +1151,6 @@ def _remove_old_knobs(node):
         "OpenpypeDataGroup", "OpenpypeDataGroup_End", "deadlinePriority",
         "deadlineChunkSize", "deadlineConcurrentTasks", "Deadline"
     ]
-    print(node.name())
 
     # remove all old knobs
     for knob in node.allKnobs():

client/ayon_core/hosts/nuke/api/workfile_template_builder.py

@@ -1,30 +1,17 @@
 import collections
 import nuke
+
 from ayon_core.pipeline import registered_host
 from ayon_core.pipeline.workfile.workfile_template_builder import (
     AbstractTemplateBuilder,
     PlaceholderPlugin,
-    LoadPlaceholderItem,
-    CreatePlaceholderItem,
-    PlaceholderLoadMixin,
-    PlaceholderCreateMixin,
 )
 from ayon_core.tools.workfile_template_build import (
     WorkfileBuildPlaceholderDialog,
 )
 from .lib import (
-    find_free_space_to_paste_nodes,
-    get_extreme_positions,
-    get_group_io_nodes,
     imprint,
-    refresh_node,
-    refresh_nodes,
     reset_selection,
-    get_names_from_nodes,
-    get_nodes_by_names,
-    select_nodes,
-    duplicate_node,
-    node_tempfile,
     get_main_window,
     WorkfileSettings,
 )
@@ -54,6 +41,7 @@ class NukeTemplateBuilder(AbstractTemplateBuilder):
 
         return True
 
+
 class NukePlaceholderPlugin(PlaceholderPlugin):
     node_color = 4278190335
 
@@ -120,843 +108,6 @@ class NukePlaceholderPlugin(PlaceholderPlugin):
         nuke.delete(placeholder_node)
 
 
-class NukePlaceholderLoadPlugin(NukePlaceholderPlugin, PlaceholderLoadMixin):
-    identifier = "nuke.load"
-    label = "Nuke load"
-
-    def _parse_placeholder_node_data(self, node):
-        placeholder_data = super(
-            NukePlaceholderLoadPlugin, self
-        )._parse_placeholder_node_data(node)
-
-        node_knobs = node.knobs()
-        nb_children = 0
-        if "nb_children" in node_knobs:
-            nb_children = int(node_knobs["nb_children"].getValue())
-        placeholder_data["nb_children"] = nb_children
-
-        siblings = []
-        if "siblings" in node_knobs:
-            siblings = node_knobs["siblings"].values()
-        placeholder_data["siblings"] = siblings
-
-        node_full_name = node.fullName()
-        placeholder_data["group_name"] = node_full_name.rpartition(".")[0]
-        placeholder_data["last_loaded"] = []
-        placeholder_data["delete"] = False
-        return placeholder_data
-
-    def _get_loaded_repre_ids(self):
-        loaded_representation_ids = self.builder.get_shared_populate_data(
-            "loaded_representation_ids"
-        )
-        if loaded_representation_ids is None:
-            loaded_representation_ids = set()
-            for node in nuke.allNodes():
-                if "repre_id" in node.knobs():
-                    loaded_representation_ids.add(
-                        node.knob("repre_id").getValue()
-                    )
-
-            self.builder.set_shared_populate_data(
-                "loaded_representation_ids", loaded_representation_ids
-            )
-        return loaded_representation_ids
-
-    def _before_placeholder_load(self, placeholder):
-        placeholder.data["nodes_init"] = nuke.allNodes()
-
-    def _before_repre_load(self, placeholder, representation):
-        placeholder.data["last_repre_id"] = representation["id"]
-
-    def collect_placeholders(self):
-        output = []
-        scene_placeholders = self._collect_scene_placeholders()
-        for node_name, node in scene_placeholders.items():
-            plugin_identifier_knob = node.knob("plugin_identifier")
-            if (
-                plugin_identifier_knob is None
-                or plugin_identifier_knob.getValue() != self.identifier
-            ):
-                continue
-
-            placeholder_data = self._parse_placeholder_node_data(node)
-            # TODO do data validations and maybe updgrades if are invalid
-            output.append(
-                LoadPlaceholderItem(node_name, placeholder_data, self)
-            )
-
-        return output
-
-    def populate_placeholder(self, placeholder):
-        self.populate_load_placeholder(placeholder)
-
-    def repopulate_placeholder(self, placeholder):
-        repre_ids = self._get_loaded_repre_ids()
-        self.populate_load_placeholder(placeholder, repre_ids)
-
-    def get_placeholder_options(self, options=None):
-        return self.get_load_plugin_options(options)
-
-    def post_placeholder_process(self, placeholder, failed):
-        """Cleanup placeholder after load of its corresponding representations.
-
-        Args:
-            placeholder (PlaceholderItem): Item which was just used to load
-                representation.
-            failed (bool): Loading of representation failed.
-        """
-        # deselect all selected nodes
-        placeholder_node = nuke.toNode(placeholder.scene_identifier)
-
-        # getting the latest nodes added
-        # TODO get from shared populate data!
-        nodes_init = placeholder.data["nodes_init"]
-        nodes_loaded = list(set(nuke.allNodes()) - set(nodes_init))
-        self.log.debug("Loaded nodes: {}".format(nodes_loaded))
-        if not nodes_loaded:
-            return
-
-        placeholder.data["delete"] = True
-
-        nodes_loaded = self._move_to_placeholder_group(
-            placeholder, nodes_loaded
-        )
-        placeholder.data["last_loaded"] = nodes_loaded
-        refresh_nodes(nodes_loaded)
-
-        # positioning of the loaded nodes
-        min_x, min_y, _, _ = get_extreme_positions(nodes_loaded)
-        for node in nodes_loaded:
-            xpos = (node.xpos() - min_x) + placeholder_node.xpos()
-            ypos = (node.ypos() - min_y) + placeholder_node.ypos()
-            node.setXYpos(xpos, ypos)
-        refresh_nodes(nodes_loaded)
-
-        # fix the problem of z_order for backdrops
-        self._fix_z_order(placeholder)
-
-        if placeholder.data.get("keep_placeholder"):
-            self._imprint_siblings(placeholder)
-
-        if placeholder.data["nb_children"] == 0:
-            # save initial nodes positions and dimensions, update them
-            # and set inputs and outputs of loaded nodes
-            if placeholder.data.get("keep_placeholder"):
-                self._imprint_inits()
-                self._update_nodes(placeholder, nuke.allNodes(), nodes_loaded)
-
-            self._set_loaded_connections(placeholder)
-
-        elif placeholder.data["siblings"]:
-            # create copies of placeholder siblings for the new loaded nodes,
-            # set their inputs and outputs and update all nodes positions and
-            # dimensions and siblings names
-
-            siblings = get_nodes_by_names(placeholder.data["siblings"])
-            refresh_nodes(siblings)
-            copies = self._create_sib_copies(placeholder)
-            new_nodes = list(copies.values())  # copies nodes
-            self._update_nodes(new_nodes, nodes_loaded)
-            placeholder_node.removeKnob(placeholder_node.knob("siblings"))
-            new_nodes_name = get_names_from_nodes(new_nodes)
-            imprint(placeholder_node, {"siblings": new_nodes_name})
-            self._set_copies_connections(placeholder, copies)
-
-            self._update_nodes(
-                nuke.allNodes(),
-                new_nodes + nodes_loaded,
-                20
-            )
-
-            new_siblings = get_names_from_nodes(new_nodes)
-            placeholder.data["siblings"] = new_siblings
-
-        else:
-            # if the placeholder doesn't have siblings, the loaded
-            # nodes will be placed in a free space
-
-            xpointer, ypointer = find_free_space_to_paste_nodes(
-                nodes_loaded, direction="bottom", offset=200
-            )
-            node = nuke.createNode("NoOp")
-            reset_selection()
-            nuke.delete(node)
-            for node in nodes_loaded:
-                xpos = (node.xpos() - min_x) + xpointer
-                ypos = (node.ypos() - min_y) + ypointer
-                node.setXYpos(xpos, ypos)
-
-        placeholder.data["nb_children"] += 1
-        reset_selection()
-
-        # go back to root group
-        nuke.root().begin()
-
-    def _move_to_placeholder_group(self, placeholder, nodes_loaded):
-        """
-        opening the placeholder's group and copying loaded nodes in it.
-
-        Returns :
-            nodes_loaded (list): the new list of pasted nodes
-        """
-
-        groups_name = placeholder.data["group_name"]
-        reset_selection()
-        select_nodes(nodes_loaded)
-        if groups_name:
-            with node_tempfile() as filepath:
-                nuke.nodeCopy(filepath)
-                for node in nuke.selectedNodes():
-                    nuke.delete(node)
-                group = nuke.toNode(groups_name)
-                group.begin()
-                nuke.nodePaste(filepath)
-                nodes_loaded = nuke.selectedNodes()
-        return nodes_loaded
-
-    def _fix_z_order(self, placeholder):
-        """Fix the problem of z_order when a backdrop is loaded."""
-
-        nodes_loaded = placeholder.data["last_loaded"]
-        loaded_backdrops = []
-        bd_orders = set()
-        for node in nodes_loaded:
-            if isinstance(node, nuke.BackdropNode):
-                loaded_backdrops.append(node)
-                bd_orders.add(node.knob("z_order").getValue())
-
-        if not bd_orders:
-            return
-
-        sib_orders = set()
-        for node_name in placeholder.data["siblings"]:
-            node = nuke.toNode(node_name)
-            if isinstance(node, nuke.BackdropNode):
-                sib_orders.add(node.knob("z_order").getValue())
-
-        if not sib_orders:
-            return
-
-        min_order = min(bd_orders)
-        max_order = max(sib_orders)
-        for backdrop_node in loaded_backdrops:
-            z_order = backdrop_node.knob("z_order").getValue()
-            backdrop_node.knob("z_order").setValue(
-                z_order + max_order - min_order + 1)
-
-    def _imprint_siblings(self, placeholder):
-        """
-        - add siblings names to placeholder attributes (nodes loaded with it)
-        - add Id to the attributes of all the other nodes
-        """
-
-        loaded_nodes = placeholder.data["last_loaded"]
-        loaded_nodes_set = set(loaded_nodes)
-        data = {"repre_id": str(placeholder.data["last_repre_id"])}
-
-        for node in loaded_nodes:
-            node_knobs = node.knobs()
-            if "builder_type" not in node_knobs:
-                # save the id of representation for all imported nodes
-                imprint(node, data)
-                node.knob("repre_id").setVisible(False)
-                refresh_node(node)
-                continue
-
-            if (
-                "is_placeholder" not in node_knobs
-                or (
-                    "is_placeholder" in node_knobs
-                    and node.knob("is_placeholder").value()
-                )
-            ):
-                siblings = list(loaded_nodes_set - {node})
-                siblings_name = get_names_from_nodes(siblings)
-                siblings = {"siblings": siblings_name}
-                imprint(node, siblings)
-
-    def _imprint_inits(self):
-        """Add initial positions and dimensions to the attributes"""
-
-        for node in nuke.allNodes():
-            refresh_node(node)
-            imprint(node, {"x_init": node.xpos(), "y_init": node.ypos()})
-            node.knob("x_init").setVisible(False)
-            node.knob("y_init").setVisible(False)
-            width = node.screenWidth()
-            height = node.screenHeight()
-            if "bdwidth" in node.knobs():
-                imprint(node, {"w_init": width, "h_init": height})
-                node.knob("w_init").setVisible(False)
-                node.knob("h_init").setVisible(False)
-            refresh_node(node)
-
-    def _update_nodes(
-        self, placeholder, nodes, considered_nodes, offset_y=None
-    ):
-        """Adjust backdrop nodes dimensions and positions.
-
-        Considering some nodes sizes.
-
-        Args:
-            nodes (list): list of nodes to update
-            considered_nodes (list): list of nodes to consider while updating
-                positions and dimensions
-            offset (int): distance between copies
-        """
-
-        placeholder_node = nuke.toNode(placeholder.scene_identifier)
-
-        min_x, min_y, max_x, max_y = get_extreme_positions(considered_nodes)
-
-        diff_x = diff_y = 0
-        contained_nodes = []  # for backdrops
-
-        if offset_y is None:
-            width_ph = placeholder_node.screenWidth()
-            height_ph = placeholder_node.screenHeight()
-            diff_y = max_y - min_y - height_ph
-            diff_x = max_x - min_x - width_ph
-            contained_nodes = [placeholder_node]
-            min_x = placeholder_node.xpos()
-            min_y = placeholder_node.ypos()
-        else:
-            siblings = get_nodes_by_names(placeholder.data["siblings"])
-            minX, _, maxX, _ = get_extreme_positions(siblings)
-            diff_y = max_y - min_y + 20
-            diff_x = abs(max_x - min_x - maxX + minX)
-            contained_nodes = considered_nodes
-
-        if diff_y <= 0 and diff_x <= 0:
-            return
-
-        for node in nodes:
-            refresh_node(node)
-
-            if (
-                node == placeholder_node
-                or node in considered_nodes
-            ):
-                continue
-
-            if (
-                not isinstance(node, nuke.BackdropNode)
-                or (
-                    isinstance(node, nuke.BackdropNode)
-                    and not set(contained_nodes) <= set(node.getNodes())
-                )
-            ):
-                if offset_y is None and node.xpos() >= min_x:
-                    node.setXpos(node.xpos() + diff_x)
-
-                if node.ypos() >= min_y:
-                    node.setYpos(node.ypos() + diff_y)
-
-            else:
-                width = node.screenWidth()
-                height = node.screenHeight()
-                node.knob("bdwidth").setValue(width + diff_x)
-                node.knob("bdheight").setValue(height + diff_y)
-
-            refresh_node(node)
-
-    def _set_loaded_connections(self, placeholder):
-        """
-        set inputs and outputs of loaded nodes"""
-
-        placeholder_node = nuke.toNode(placeholder.scene_identifier)
-        input_node, output_node = get_group_io_nodes(
-            placeholder.data["last_loaded"]
-        )
-        for node in placeholder_node.dependent():
-            for idx in range(node.inputs()):
-                if node.input(idx) == placeholder_node and output_node:
-                    node.setInput(idx, output_node)
-
-        for node in placeholder_node.dependencies():
-            for idx in range(placeholder_node.inputs()):
-                if placeholder_node.input(idx) == node and input_node:
-                    input_node.setInput(0, node)
-
-    def _create_sib_copies(self, placeholder):
-        """ creating copies of the palce_holder siblings (the ones who were
-        loaded with it) for the new nodes added
-
-        Returns :
-            copies (dict) : with copied nodes names and their copies
-        """
-
-        copies = {}
-        siblings = get_nodes_by_names(placeholder.data["siblings"])
-        for node in siblings:
-            new_node = duplicate_node(node)
-
-            x_init = int(new_node.knob("x_init").getValue())
-            y_init = int(new_node.knob("y_init").getValue())
-            new_node.setXYpos(x_init, y_init)
-            if isinstance(new_node, nuke.BackdropNode):
-                w_init = new_node.knob("w_init").getValue()
-                h_init = new_node.knob("h_init").getValue()
-                new_node.knob("bdwidth").setValue(w_init)
-                new_node.knob("bdheight").setValue(h_init)
-                refresh_node(node)
-
-            if "repre_id" in node.knobs().keys():
-                node.removeKnob(node.knob("repre_id"))
-            copies[node.name()] = new_node
-        return copies
-
-    def _set_copies_connections(self, placeholder, copies):
-        """Set inputs and outputs of the copies.
-
-        Args:
-            copies (dict): Copied nodes by their names.
-        """
-
-        last_input, last_output = get_group_io_nodes(
-            placeholder.data["last_loaded"]
-        )
-        siblings = get_nodes_by_names(placeholder.data["siblings"])
-        siblings_input, siblings_output = get_group_io_nodes(siblings)
-        copy_input = copies[siblings_input.name()]
-        copy_output = copies[siblings_output.name()]
-
-        for node_init in siblings:
-            if node_init == siblings_output:
-                continue
-
-            node_copy = copies[node_init.name()]
-            for node in node_init.dependent():
-                for idx in range(node.inputs()):
-                    if node.input(idx) != node_init:
-                        continue
-
-                    if node in siblings:
-                        copies[node.name()].setInput(idx, node_copy)
-                    else:
-                        last_input.setInput(0, node_copy)
-
-            for node in node_init.dependencies():
-                for idx in range(node_init.inputs()):
-                    if node_init.input(idx) != node:
-                        continue
-
-                    if node_init == siblings_input:
-                        copy_input.setInput(idx, node)
-                    elif node in siblings:
-                        node_copy.setInput(idx, copies[node.name()])
-                    else:
-                        node_copy.setInput(idx, last_output)
-
-        siblings_input.setInput(0, copy_output)
-
-
-class NukePlaceholderCreatePlugin(
-    NukePlaceholderPlugin, PlaceholderCreateMixin
-):
-    identifier = "nuke.create"
-    label = "Nuke create"
-
-    def _parse_placeholder_node_data(self, node):
-        placeholder_data = super(
-            NukePlaceholderCreatePlugin, self
-        )._parse_placeholder_node_data(node)
-
-        node_knobs = node.knobs()
-        nb_children = 0
-        if "nb_children" in node_knobs:
-            nb_children = int(node_knobs["nb_children"].getValue())
-        placeholder_data["nb_children"] = nb_children
-
-        siblings = []
-        if "siblings" in node_knobs:
-            siblings = node_knobs["siblings"].values()
-        placeholder_data["siblings"] = siblings
-
-        node_full_name = node.fullName()
-        placeholder_data["group_name"] = node_full_name.rpartition(".")[0]
-        placeholder_data["last_loaded"] = []
-        placeholder_data["delete"] = False
-        return placeholder_data
-
-    def _before_instance_create(self, placeholder):
-        placeholder.data["nodes_init"] = nuke.allNodes()
-
-    def collect_placeholders(self):
-        output = []
-        scene_placeholders = self._collect_scene_placeholders()
-        for node_name, node in scene_placeholders.items():
-            plugin_identifier_knob = node.knob("plugin_identifier")
-            if (
-                plugin_identifier_knob is None
-                or plugin_identifier_knob.getValue() != self.identifier
-            ):
-                continue
-
-            placeholder_data = self._parse_placeholder_node_data(node)
-
-            output.append(
-                CreatePlaceholderItem(node_name, placeholder_data, self)
-            )
-
-        return output
-
-    def populate_placeholder(self, placeholder):
-        self.populate_create_placeholder(placeholder)
-
-    def repopulate_placeholder(self, placeholder):
-        self.populate_create_placeholder(placeholder)
-
-    def get_placeholder_options(self, options=None):
-        return self.get_create_plugin_options(options)
-
-    def post_placeholder_process(self, placeholder, failed):
-        """Cleanup placeholder after load of its corresponding representations.
-
-        Args:
-            placeholder (PlaceholderItem): Item which was just used to load
-                representation.
-            failed (bool): Loading of representation failed.
-        """
-        # deselect all selected nodes
-        placeholder_node = nuke.toNode(placeholder.scene_identifier)
-
-        # getting the latest nodes added
-        nodes_init = placeholder.data["nodes_init"]
-        nodes_created = list(set(nuke.allNodes()) - set(nodes_init))
-        self.log.debug("Created nodes: {}".format(nodes_created))
-        if not nodes_created:
-            return
-
-        placeholder.data["delete"] = True
-
-        nodes_created = self._move_to_placeholder_group(
-            placeholder, nodes_created
-        )
-        placeholder.data["last_created"] = nodes_created
-        refresh_nodes(nodes_created)
-
-        # positioning of the created nodes
-        min_x, min_y, _, _ = get_extreme_positions(nodes_created)
-        for node in nodes_created:
-            xpos = (node.xpos() - min_x) + placeholder_node.xpos()
-            ypos = (node.ypos() - min_y) + placeholder_node.ypos()
-            node.setXYpos(xpos, ypos)
-        refresh_nodes(nodes_created)
-
-        # fix the problem of z_order for backdrops
-        self._fix_z_order(placeholder)
-
-        if placeholder.data.get("keep_placeholder"):
-            self._imprint_siblings(placeholder)
-
-        if placeholder.data["nb_children"] == 0:
-            # save initial nodes positions and dimensions, update them
-            # and set inputs and outputs of created nodes
-
-            if placeholder.data.get("keep_placeholder"):
-                self._imprint_inits()
-                self._update_nodes(placeholder, nuke.allNodes(), nodes_created)
-
-            self._set_created_connections(placeholder)
-
-        elif placeholder.data["siblings"]:
-            # create copies of placeholder siblings for the new created nodes,
-            # set their inputs and outputs and update all nodes positions and
-            # dimensions and siblings names
-
-            siblings = get_nodes_by_names(placeholder.data["siblings"])
-            refresh_nodes(siblings)
-            copies = self._create_sib_copies(placeholder)
-            new_nodes = list(copies.values())  # copies nodes
-            self._update_nodes(new_nodes, nodes_created)
-            placeholder_node.removeKnob(placeholder_node.knob("siblings"))
-            new_nodes_name = get_names_from_nodes(new_nodes)
-            imprint(placeholder_node, {"siblings": new_nodes_name})
-            self._set_copies_connections(placeholder, copies)
-
-            self._update_nodes(
-                nuke.allNodes(),
-                new_nodes + nodes_created,
-                20
-            )
-
-            new_siblings = get_names_from_nodes(new_nodes)
-            placeholder.data["siblings"] = new_siblings
-
-        else:
-            # if the placeholder doesn't have siblings, the created
-            # nodes will be placed in a free space
-
-            xpointer, ypointer = find_free_space_to_paste_nodes(
-                nodes_created, direction="bottom", offset=200
-            )
-            node = nuke.createNode("NoOp")
-            reset_selection()
-            nuke.delete(node)
-            for node in nodes_created:
-                xpos = (node.xpos() - min_x) + xpointer
-                ypos = (node.ypos() - min_y) + ypointer
-                node.setXYpos(xpos, ypos)
-
-        placeholder.data["nb_children"] += 1
-        reset_selection()
-
-        # go back to root group
-        nuke.root().begin()
-
-    def _move_to_placeholder_group(self, placeholder, nodes_created):
-        """
-        opening the placeholder's group and copying created nodes in it.
-
-        Returns :
-            nodes_created (list): the new list of pasted nodes
-        """
-        groups_name = placeholder.data["group_name"]
-        reset_selection()
-        select_nodes(nodes_created)
-        if groups_name:
-            with node_tempfile() as filepath:
-                nuke.nodeCopy(filepath)
-                for node in nuke.selectedNodes():
-                    nuke.delete(node)
-                group = nuke.toNode(groups_name)
-                group.begin()
-                nuke.nodePaste(filepath)
-                nodes_created = nuke.selectedNodes()
-        return nodes_created
-
-    def _fix_z_order(self, placeholder):
-        """Fix the problem of z_order when a backdrop is create."""
-
-        nodes_created = placeholder.data["last_created"]
-        created_backdrops = []
-        bd_orders = set()
-        for node in nodes_created:
-            if isinstance(node, nuke.BackdropNode):
-                created_backdrops.append(node)
-                bd_orders.add(node.knob("z_order").getValue())
-
-        if not bd_orders:
-            return
-
-        sib_orders = set()
-        for node_name in placeholder.data["siblings"]:
-            node = nuke.toNode(node_name)
-            if isinstance(node, nuke.BackdropNode):
-                sib_orders.add(node.knob("z_order").getValue())
-
-        if not sib_orders:
-            return
-
-        min_order = min(bd_orders)
-        max_order = max(sib_orders)
-        for backdrop_node in created_backdrops:
-            z_order = backdrop_node.knob("z_order").getValue()
-            backdrop_node.knob("z_order").setValue(
-                z_order + max_order - min_order + 1)
-
-    def _imprint_siblings(self, placeholder):
-        """
-        - add siblings names to placeholder attributes (nodes created with it)
-        - add Id to the attributes of all the other nodes
-        """
-
-        created_nodes = placeholder.data["last_created"]
-        created_nodes_set = set(created_nodes)
-
-        for node in created_nodes:
-            node_knobs = node.knobs()
-
-            if (
-                "is_placeholder" not in node_knobs
-                or (
-                    "is_placeholder" in node_knobs
-                    and node.knob("is_placeholder").value()
-                )
-            ):
-                siblings = list(created_nodes_set - {node})
-                siblings_name = get_names_from_nodes(siblings)
-                siblings = {"siblings": siblings_name}
-                imprint(node, siblings)
-
-    def _imprint_inits(self):
-        """Add initial positions and dimensions to the attributes"""
-
-        for node in nuke.allNodes():
-            refresh_node(node)
-            imprint(node, {"x_init": node.xpos(), "y_init": node.ypos()})
-            node.knob("x_init").setVisible(False)
-            node.knob("y_init").setVisible(False)
-            width = node.screenWidth()
-            height = node.screenHeight()
-            if "bdwidth" in node.knobs():
-                imprint(node, {"w_init": width, "h_init": height})
-                node.knob("w_init").setVisible(False)
-                node.knob("h_init").setVisible(False)
-            refresh_node(node)
-
-    def _update_nodes(
-        self, placeholder, nodes, considered_nodes, offset_y=None
-    ):
-        """Adjust backdrop nodes dimensions and positions.
-
-        Considering some nodes sizes.
-
-        Args:
-            nodes (list): list of nodes to update
-            considered_nodes (list): list of nodes to consider while updating
-                positions and dimensions
-            offset (int): distance between copies
-        """
-
-        placeholder_node = nuke.toNode(placeholder.scene_identifier)
-
-        min_x, min_y, max_x, max_y = get_extreme_positions(considered_nodes)
-
-        diff_x = diff_y = 0
-        contained_nodes = []  # for backdrops
-
-        if offset_y is None:
-            width_ph = placeholder_node.screenWidth()
-            height_ph = placeholder_node.screenHeight()
-            diff_y = max_y - min_y - height_ph
-            diff_x = max_x - min_x - width_ph
-            contained_nodes = [placeholder_node]
-            min_x = placeholder_node.xpos()
-            min_y = placeholder_node.ypos()
-        else:
-            siblings = get_nodes_by_names(placeholder.data["siblings"])
-            minX, _, maxX, _ = get_extreme_positions(siblings)
-            diff_y = max_y - min_y + 20
-            diff_x = abs(max_x - min_x - maxX + minX)
-            contained_nodes = considered_nodes
-
-        if diff_y <= 0 and diff_x <= 0:
-            return
-
-        for node in nodes:
-            refresh_node(node)
-
-            if (
-                node == placeholder_node
-                or node in considered_nodes
-            ):
-                continue
-
-            if (
-                not isinstance(node, nuke.BackdropNode)
-                or (
-                    isinstance(node, nuke.BackdropNode)
-                    and not set(contained_nodes) <= set(node.getNodes())
-                )
-            ):
-                if offset_y is None and node.xpos() >= min_x:
-                    node.setXpos(node.xpos() + diff_x)
-
-                if node.ypos() >= min_y:
-                    node.setYpos(node.ypos() + diff_y)
-
-            else:
-                width = node.screenWidth()
-                height = node.screenHeight()
-                node.knob("bdwidth").setValue(width + diff_x)
-                node.knob("bdheight").setValue(height + diff_y)
-
-            refresh_node(node)
-
-    def _set_created_connections(self, placeholder):
-        """
-        set inputs and outputs of created nodes"""
-
-        placeholder_node = nuke.toNode(placeholder.scene_identifier)
-        input_node, output_node = get_group_io_nodes(
-            placeholder.data["last_created"]
-        )
-        for node in placeholder_node.dependent():
-            for idx in range(node.inputs()):
-                if node.input(idx) == placeholder_node and output_node:
-                    node.setInput(idx, output_node)
-
-        for node in placeholder_node.dependencies():
-            for idx in range(placeholder_node.inputs()):
-                if placeholder_node.input(idx) == node and input_node:
-                    input_node.setInput(0, node)
-
-    def _create_sib_copies(self, placeholder):
-        """ creating copies of the palce_holder siblings (the ones who were
-        created with it) for the new nodes added
-
-        Returns :
-            copies (dict) : with copied nodes names and their copies
-        """
-
-        copies = {}
-        siblings = get_nodes_by_names(placeholder.data["siblings"])
-        for node in siblings:
-            new_node = duplicate_node(node)
-
-            x_init = int(new_node.knob("x_init").getValue())
-            y_init = int(new_node.knob("y_init").getValue())
-            new_node.setXYpos(x_init, y_init)
-            if isinstance(new_node, nuke.BackdropNode):
-                w_init = new_node.knob("w_init").getValue()
-                h_init = new_node.knob("h_init").getValue()
-                new_node.knob("bdwidth").setValue(w_init)
-                new_node.knob("bdheight").setValue(h_init)
-                refresh_node(node)
-
-            if "repre_id" in node.knobs().keys():
-                node.removeKnob(node.knob("repre_id"))
-            copies[node.name()] = new_node
-        return copies
-
-    def _set_copies_connections(self, placeholder, copies):
-        """Set inputs and outputs of the copies.
-
-        Args:
-            copies (dict): Copied nodes by their names.
-        """
-
-        last_input, last_output = get_group_io_nodes(
-            placeholder.data["last_created"]
-        )
-        siblings = get_nodes_by_names(placeholder.data["siblings"])
-        siblings_input, siblings_output = get_group_io_nodes(siblings)
-        copy_input = copies[siblings_input.name()]
-        copy_output = copies[siblings_output.name()]
-
-        for node_init in siblings:
-            if node_init == siblings_output:
-                continue
-
-            node_copy = copies[node_init.name()]
-            for node in node_init.dependent():
-                for idx in range(node.inputs()):
-                    if node.input(idx) != node_init:
-                        continue
-
-                    if node in siblings:
-                        copies[node.name()].setInput(idx, node_copy)
-                    else:
-                        last_input.setInput(0, node_copy)
-
-            for node in node_init.dependencies():
-                for idx in range(node_init.inputs()):
-                    if node_init.input(idx) != node:
-                        continue
-
-                    if node_init == siblings_input:
-                        copy_input.setInput(idx, node)
-                    elif node in siblings:
-                        node_copy.setInput(idx, copies[node.name()])
-                    else:
-                        node_copy.setInput(idx, last_output)
-
-        siblings_input.setInput(0, copy_output)
-
-
 def build_workfile_template(*args, **kwargs):
     builder = NukeTemplateBuilder(registered_host())
     builder.build_template(*args, **kwargs)

client/ayon_core/hosts/nuke/plugins/workfile_build/create_placeholder.py

@@ -0,0 +1,428 @@
+import nuke
+
+from ayon_core.pipeline.workfile.workfile_template_builder import (
+    CreatePlaceholderItem,
+    PlaceholderCreateMixin,
+)
+from ayon_core.hosts.nuke.api.lib import (
+    find_free_space_to_paste_nodes,
+    get_extreme_positions,
+    get_group_io_nodes,
+    imprint,
+    refresh_node,
+    refresh_nodes,
+    reset_selection,
+    get_names_from_nodes,
+    get_nodes_by_names,
+    select_nodes,
+    duplicate_node,
+    node_tempfile,
+)
+from ayon_core.hosts.nuke.api.workfile_template_builder import (
+    NukePlaceholderPlugin
+)
+
+
+class NukePlaceholderCreatePlugin(
+    NukePlaceholderPlugin, PlaceholderCreateMixin
+):
+    identifier = "nuke.create"
+    label = "Nuke create"
+
+    def _parse_placeholder_node_data(self, node):
+        placeholder_data = super(
+            NukePlaceholderCreatePlugin, self
+        )._parse_placeholder_node_data(node)
+
+        node_knobs = node.knobs()
+        nb_children = 0
+        if "nb_children" in node_knobs:
+            nb_children = int(node_knobs["nb_children"].getValue())
+        placeholder_data["nb_children"] = nb_children
+
+        siblings = []
+        if "siblings" in node_knobs:
+            siblings = node_knobs["siblings"].values()
+        placeholder_data["siblings"] = siblings
+
+        node_full_name = node.fullName()
+        placeholder_data["group_name"] = node_full_name.rpartition(".")[0]
+        placeholder_data["last_loaded"] = []
+        placeholder_data["delete"] = False
+        return placeholder_data
+
+    def _before_instance_create(self, placeholder):
+        placeholder.data["nodes_init"] = nuke.allNodes()
+
+    def collect_placeholders(self):
+        output = []
+        scene_placeholders = self._collect_scene_placeholders()
+        for node_name, node in scene_placeholders.items():
+            plugin_identifier_knob = node.knob("plugin_identifier")
+            if (
+                plugin_identifier_knob is None
+                or plugin_identifier_knob.getValue() != self.identifier
+            ):
+                continue
+
+            placeholder_data = self._parse_placeholder_node_data(node)
+
+            output.append(
+                CreatePlaceholderItem(node_name, placeholder_data, self)
+            )
+
+        return output
+
+    def populate_placeholder(self, placeholder):
+        self.populate_create_placeholder(placeholder)
+
+    def repopulate_placeholder(self, placeholder):
+        self.populate_create_placeholder(placeholder)
+
+    def get_placeholder_options(self, options=None):
+        return self.get_create_plugin_options(options)
+
+    def post_placeholder_process(self, placeholder, failed):
+        """Cleanup placeholder after load of its corresponding representations.
+
+        Args:
+            placeholder (PlaceholderItem): Item which was just used to load
+                representation.
+            failed (bool): Loading of representation failed.
+        """
+        # deselect all selected nodes
+        placeholder_node = nuke.toNode(placeholder.scene_identifier)
+
+        # getting the latest nodes added
+        nodes_init = placeholder.data["nodes_init"]
+        nodes_created = list(set(nuke.allNodes()) - set(nodes_init))
+        self.log.debug("Created nodes: {}".format(nodes_created))
+        if not nodes_created:
+            return
+
+        placeholder.data["delete"] = True
+
+        nodes_created = self._move_to_placeholder_group(
+            placeholder, nodes_created
+        )
+        placeholder.data["last_created"] = nodes_created
+        refresh_nodes(nodes_created)
+
+        # positioning of the created nodes
+        min_x, min_y, _, _ = get_extreme_positions(nodes_created)
+        for node in nodes_created:
+            xpos = (node.xpos() - min_x) + placeholder_node.xpos()
+            ypos = (node.ypos() - min_y) + placeholder_node.ypos()
+            node.setXYpos(xpos, ypos)
+        refresh_nodes(nodes_created)
+
+        # fix the problem of z_order for backdrops
+        self._fix_z_order(placeholder)
+
+        if placeholder.data.get("keep_placeholder"):
+            self._imprint_siblings(placeholder)
+
+        if placeholder.data["nb_children"] == 0:
+            # save initial nodes positions and dimensions, update them
+            # and set inputs and outputs of created nodes
+
+            if placeholder.data.get("keep_placeholder"):
+                self._imprint_inits()
+                self._update_nodes(placeholder, nuke.allNodes(), nodes_created)
+
+            self._set_created_connections(placeholder)
+
+        elif placeholder.data["siblings"]:
+            # create copies of placeholder siblings for the new created nodes,
+            # set their inputs and outputs and update all nodes positions and
+            # dimensions and siblings names
+
+            siblings = get_nodes_by_names(placeholder.data["siblings"])
+            refresh_nodes(siblings)
+            copies = self._create_sib_copies(placeholder)
+            new_nodes = list(copies.values())  # copies nodes
+            self._update_nodes(new_nodes, nodes_created)
+            placeholder_node.removeKnob(placeholder_node.knob("siblings"))
+            new_nodes_name = get_names_from_nodes(new_nodes)
+            imprint(placeholder_node, {"siblings": new_nodes_name})
+            self._set_copies_connections(placeholder, copies)
+
+            self._update_nodes(
+                nuke.allNodes(),
+                new_nodes + nodes_created,
+                20
+            )
+
+            new_siblings = get_names_from_nodes(new_nodes)
+            placeholder.data["siblings"] = new_siblings
+
+        else:
+            # if the placeholder doesn't have siblings, the created
+            # nodes will be placed in a free space
+
+            xpointer, ypointer = find_free_space_to_paste_nodes(
+                nodes_created, direction="bottom", offset=200
+            )
+            node = nuke.createNode("NoOp")
+            reset_selection()
+            nuke.delete(node)
+            for node in nodes_created:
+                xpos = (node.xpos() - min_x) + xpointer
+                ypos = (node.ypos() - min_y) + ypointer
+                node.setXYpos(xpos, ypos)
+
+        placeholder.data["nb_children"] += 1
+        reset_selection()
+
+        # go back to root group
+        nuke.root().begin()
+
+    def _move_to_placeholder_group(self, placeholder, nodes_created):
+        """
+        opening the placeholder's group and copying created nodes in it.
+
+        Returns :
+            nodes_created (list): the new list of pasted nodes
+        """
+        groups_name = placeholder.data["group_name"]
+        reset_selection()
+        select_nodes(nodes_created)
+        if groups_name:
+            with node_tempfile() as filepath:
+                nuke.nodeCopy(filepath)
+                for node in nuke.selectedNodes():
+                    nuke.delete(node)
+                group = nuke.toNode(groups_name)
+                group.begin()
+                nuke.nodePaste(filepath)
+                nodes_created = nuke.selectedNodes()
+        return nodes_created
+
+    def _fix_z_order(self, placeholder):
+        """Fix the problem of z_order when a backdrop is create."""
+
+        nodes_created = placeholder.data["last_created"]
+        created_backdrops = []
+        bd_orders = set()
+        for node in nodes_created:
+            if isinstance(node, nuke.BackdropNode):
+                created_backdrops.append(node)
+                bd_orders.add(node.knob("z_order").getValue())
+
+        if not bd_orders:
+            return
+
+        sib_orders = set()
+        for node_name in placeholder.data["siblings"]:
+            node = nuke.toNode(node_name)
+            if isinstance(node, nuke.BackdropNode):
+                sib_orders.add(node.knob("z_order").getValue())
+
+        if not sib_orders:
+            return
+
+        min_order = min(bd_orders)
+        max_order = max(sib_orders)
+        for backdrop_node in created_backdrops:
+            z_order = backdrop_node.knob("z_order").getValue()
+            backdrop_node.knob("z_order").setValue(
+                z_order + max_order - min_order + 1)
+
+    def _imprint_siblings(self, placeholder):
+        """
+        - add siblings names to placeholder attributes (nodes created with it)
+        - add Id to the attributes of all the other nodes
+        """
+
+        created_nodes = placeholder.data["last_created"]
+        created_nodes_set = set(created_nodes)
+
+        for node in created_nodes:
+            node_knobs = node.knobs()
+
+            if (
+                "is_placeholder" not in node_knobs
+                or (
+                    "is_placeholder" in node_knobs
+                    and node.knob("is_placeholder").value()
+                )
+            ):
+                siblings = list(created_nodes_set - {node})
+                siblings_name = get_names_from_nodes(siblings)
+                siblings = {"siblings": siblings_name}
+                imprint(node, siblings)
+
+    def _imprint_inits(self):
+        """Add initial positions and dimensions to the attributes"""
+
+        for node in nuke.allNodes():
+            refresh_node(node)
+            imprint(node, {"x_init": node.xpos(), "y_init": node.ypos()})
+            node.knob("x_init").setVisible(False)
+            node.knob("y_init").setVisible(False)
+            width = node.screenWidth()
+            height = node.screenHeight()
+            if "bdwidth" in node.knobs():
+                imprint(node, {"w_init": width, "h_init": height})
+                node.knob("w_init").setVisible(False)
+                node.knob("h_init").setVisible(False)
+            refresh_node(node)
+
+    def _update_nodes(
+        self, placeholder, nodes, considered_nodes, offset_y=None
+    ):
+        """Adjust backdrop nodes dimensions and positions.
+
+        Considering some nodes sizes.
+
+        Args:
+            nodes (list): list of nodes to update
+            considered_nodes (list): list of nodes to consider while updating
+                positions and dimensions
+            offset (int): distance between copies
+        """
+
+        placeholder_node = nuke.toNode(placeholder.scene_identifier)
+
+        min_x, min_y, max_x, max_y = get_extreme_positions(considered_nodes)
+
+        diff_x = diff_y = 0
+        contained_nodes = []  # for backdrops
+
+        if offset_y is None:
+            width_ph = placeholder_node.screenWidth()
+            height_ph = placeholder_node.screenHeight()
+            diff_y = max_y - min_y - height_ph
+            diff_x = max_x - min_x - width_ph
+            contained_nodes = [placeholder_node]
+            min_x = placeholder_node.xpos()
+            min_y = placeholder_node.ypos()
+        else:
+            siblings = get_nodes_by_names(placeholder.data["siblings"])
+            minX, _, maxX, _ = get_extreme_positions(siblings)
+            diff_y = max_y - min_y + 20
+            diff_x = abs(max_x - min_x - maxX + minX)
+            contained_nodes = considered_nodes
+
+        if diff_y <= 0 and diff_x <= 0:
+            return
+
+        for node in nodes:
+            refresh_node(node)
+
+            if (
+                node == placeholder_node
+                or node in considered_nodes
+            ):
+                continue
+
+            if (
+                not isinstance(node, nuke.BackdropNode)
+                or (
+                    isinstance(node, nuke.BackdropNode)
+                    and not set(contained_nodes) <= set(node.getNodes())
+                )
+            ):
+                if offset_y is None and node.xpos() >= min_x:
+                    node.setXpos(node.xpos() + diff_x)
+
+                if node.ypos() >= min_y:
+                    node.setYpos(node.ypos() + diff_y)
+
+            else:
+                width = node.screenWidth()
+                height = node.screenHeight()
+                node.knob("bdwidth").setValue(width + diff_x)
+                node.knob("bdheight").setValue(height + diff_y)
+
+            refresh_node(node)
+
+    def _set_created_connections(self, placeholder):
+        """
+        set inputs and outputs of created nodes"""
+
+        placeholder_node = nuke.toNode(placeholder.scene_identifier)
+        input_node, output_node = get_group_io_nodes(
+            placeholder.data["last_created"]
+        )
+        for node in placeholder_node.dependent():
+            for idx in range(node.inputs()):
+                if node.input(idx) == placeholder_node and output_node:
+                    node.setInput(idx, output_node)
+
+        for node in placeholder_node.dependencies():
+            for idx in range(placeholder_node.inputs()):
+                if placeholder_node.input(idx) == node and input_node:
+                    input_node.setInput(0, node)
+
+    def _create_sib_copies(self, placeholder):
+        """ creating copies of the palce_holder siblings (the ones who were
+        created with it) for the new nodes added
+
+        Returns :
+            copies (dict) : with copied nodes names and their copies
+        """
+
+        copies = {}
+        siblings = get_nodes_by_names(placeholder.data["siblings"])
+        for node in siblings:
+            new_node = duplicate_node(node)
+
+            x_init = int(new_node.knob("x_init").getValue())
+            y_init = int(new_node.knob("y_init").getValue())
+            new_node.setXYpos(x_init, y_init)
+            if isinstance(new_node, nuke.BackdropNode):
+                w_init = new_node.knob("w_init").getValue()
+                h_init = new_node.knob("h_init").getValue()
+                new_node.knob("bdwidth").setValue(w_init)
+                new_node.knob("bdheight").setValue(h_init)
+                refresh_node(node)
+
+            if "repre_id" in node.knobs().keys():
+                node.removeKnob(node.knob("repre_id"))
+            copies[node.name()] = new_node
+        return copies
+
+    def _set_copies_connections(self, placeholder, copies):
+        """Set inputs and outputs of the copies.
+
+        Args:
+            copies (dict): Copied nodes by their names.
+        """
+
+        last_input, last_output = get_group_io_nodes(
+            placeholder.data["last_created"]
+        )
+        siblings = get_nodes_by_names(placeholder.data["siblings"])
+        siblings_input, siblings_output = get_group_io_nodes(siblings)
+        copy_input = copies[siblings_input.name()]
+        copy_output = copies[siblings_output.name()]
+
+        for node_init in siblings:
+            if node_init == siblings_output:
+                continue
+
+            node_copy = copies[node_init.name()]
+            for node in node_init.dependent():
+                for idx in range(node.inputs()):
+                    if node.input(idx) != node_init:
+                        continue
+
+                    if node in siblings:
+                        copies[node.name()].setInput(idx, node_copy)
+                    else:
+                        last_input.setInput(0, node_copy)
+
+            for node in node_init.dependencies():
+                for idx in range(node_init.inputs()):
+                    if node_init.input(idx) != node:
+                        continue
+
+                    if node_init == siblings_input:
+                        copy_input.setInput(idx, node)
+                    elif node in siblings:
+                        node_copy.setInput(idx, copies[node.name()])
+                    else:
+                        node_copy.setInput(idx, last_output)
+
+        siblings_input.setInput(0, copy_output)

client/ayon_core/hosts/nuke/plugins/workfile_build/load_placeholder.py

@@ -0,0 +1,455 @@
+import nuke
+
+from ayon_core.pipeline.workfile.workfile_template_builder import (
+    LoadPlaceholderItem,
+    PlaceholderLoadMixin,
+)
+from ayon_core.hosts.nuke.api.lib import (
+    find_free_space_to_paste_nodes,
+    get_extreme_positions,
+    get_group_io_nodes,
+    imprint,
+    refresh_node,
+    refresh_nodes,
+    reset_selection,
+    get_names_from_nodes,
+    get_nodes_by_names,
+    select_nodes,
+    duplicate_node,
+    node_tempfile,
+)
+from ayon_core.hosts.nuke.api.workfile_template_builder import (
+    NukePlaceholderPlugin
+)
+
+
+class NukePlaceholderLoadPlugin(NukePlaceholderPlugin, PlaceholderLoadMixin):
+    identifier = "nuke.load"
+    label = "Nuke load"
+
+    def _parse_placeholder_node_data(self, node):
+        placeholder_data = super(
+            NukePlaceholderLoadPlugin, self
+        )._parse_placeholder_node_data(node)
+
+        node_knobs = node.knobs()
+        nb_children = 0
+        if "nb_children" in node_knobs:
+            nb_children = int(node_knobs["nb_children"].getValue())
+        placeholder_data["nb_children"] = nb_children
+
+        siblings = []
+        if "siblings" in node_knobs:
+            siblings = node_knobs["siblings"].values()
+        placeholder_data["siblings"] = siblings
+
+        node_full_name = node.fullName()
+        placeholder_data["group_name"] = node_full_name.rpartition(".")[0]
+        placeholder_data["last_loaded"] = []
+        placeholder_data["delete"] = False
+        return placeholder_data
+
+    def _get_loaded_repre_ids(self):
+        loaded_representation_ids = self.builder.get_shared_populate_data(
+            "loaded_representation_ids"
+        )
+        if loaded_representation_ids is None:
+            loaded_representation_ids = set()
+            for node in nuke.allNodes():
+                if "repre_id" in node.knobs():
+                    loaded_representation_ids.add(
+                        node.knob("repre_id").getValue()
+                    )
+
+            self.builder.set_shared_populate_data(
+                "loaded_representation_ids", loaded_representation_ids
+            )
+        return loaded_representation_ids
+
+    def _before_placeholder_load(self, placeholder):
+        placeholder.data["nodes_init"] = nuke.allNodes()
+
+    def _before_repre_load(self, placeholder, representation):
+        placeholder.data["last_repre_id"] = representation["id"]
+
+    def collect_placeholders(self):
+        output = []
+        scene_placeholders = self._collect_scene_placeholders()
+        for node_name, node in scene_placeholders.items():
+            plugin_identifier_knob = node.knob("plugin_identifier")
+            if (
+                plugin_identifier_knob is None
+                or plugin_identifier_knob.getValue() != self.identifier
+            ):
+                continue
+
+            placeholder_data = self._parse_placeholder_node_data(node)
+            # TODO do data validations and maybe updgrades if are invalid
+            output.append(
+                LoadPlaceholderItem(node_name, placeholder_data, self)
+            )
+
+        return output
+
+    def populate_placeholder(self, placeholder):
+        self.populate_load_placeholder(placeholder)
+
+    def repopulate_placeholder(self, placeholder):
+        repre_ids = self._get_loaded_repre_ids()
+        self.populate_load_placeholder(placeholder, repre_ids)
+
+    def get_placeholder_options(self, options=None):
+        return self.get_load_plugin_options(options)
+
+    def post_placeholder_process(self, placeholder, failed):
+        """Cleanup placeholder after load of its corresponding representations.
+
+        Args:
+            placeholder (PlaceholderItem): Item which was just used to load
+                representation.
+            failed (bool): Loading of representation failed.
+        """
+        # deselect all selected nodes
+        placeholder_node = nuke.toNode(placeholder.scene_identifier)
+
+        # getting the latest nodes added
+        # TODO get from shared populate data!
+        nodes_init = placeholder.data["nodes_init"]
+        nodes_loaded = list(set(nuke.allNodes()) - set(nodes_init))
+        self.log.debug("Loaded nodes: {}".format(nodes_loaded))
+        if not nodes_loaded:
+            return
+
+        placeholder.data["delete"] = True
+
+        nodes_loaded = self._move_to_placeholder_group(
+            placeholder, nodes_loaded
+        )
+        placeholder.data["last_loaded"] = nodes_loaded
+        refresh_nodes(nodes_loaded)
+
+        # positioning of the loaded nodes
+        min_x, min_y, _, _ = get_extreme_positions(nodes_loaded)
+        for node in nodes_loaded:
+            xpos = (node.xpos() - min_x) + placeholder_node.xpos()
+            ypos = (node.ypos() - min_y) + placeholder_node.ypos()
+            node.setXYpos(xpos, ypos)
+        refresh_nodes(nodes_loaded)
+
+        # fix the problem of z_order for backdrops
+        self._fix_z_order(placeholder)
+
+        if placeholder.data.get("keep_placeholder"):
+            self._imprint_siblings(placeholder)
+
+        if placeholder.data["nb_children"] == 0:
+            # save initial nodes positions and dimensions, update them
+            # and set inputs and outputs of loaded nodes
+            if placeholder.data.get("keep_placeholder"):
+                self._imprint_inits()
+                self._update_nodes(placeholder, nuke.allNodes(), nodes_loaded)
+
+            self._set_loaded_connections(placeholder)
+
+        elif placeholder.data["siblings"]:
+            # create copies of placeholder siblings for the new loaded nodes,
+            # set their inputs and outputs and update all nodes positions and
+            # dimensions and siblings names
+
+            siblings = get_nodes_by_names(placeholder.data["siblings"])
+            refresh_nodes(siblings)
+            copies = self._create_sib_copies(placeholder)
+            new_nodes = list(copies.values())  # copies nodes
+            self._update_nodes(new_nodes, nodes_loaded)
+            placeholder_node.removeKnob(placeholder_node.knob("siblings"))
+            new_nodes_name = get_names_from_nodes(new_nodes)
+            imprint(placeholder_node, {"siblings": new_nodes_name})
+            self._set_copies_connections(placeholder, copies)
+
+            self._update_nodes(
+                nuke.allNodes(),
+                new_nodes + nodes_loaded,
+                20
+            )
+
+            new_siblings = get_names_from_nodes(new_nodes)
+            placeholder.data["siblings"] = new_siblings
+
+        else:
+            # if the placeholder doesn't have siblings, the loaded
+            # nodes will be placed in a free space
+
+            xpointer, ypointer = find_free_space_to_paste_nodes(
+                nodes_loaded, direction="bottom", offset=200
+            )
+            node = nuke.createNode("NoOp")
+            reset_selection()
+            nuke.delete(node)
+            for node in nodes_loaded:
+                xpos = (node.xpos() - min_x) + xpointer
+                ypos = (node.ypos() - min_y) + ypointer
+                node.setXYpos(xpos, ypos)
+
+        placeholder.data["nb_children"] += 1
+        reset_selection()
+
+        # go back to root group
+        nuke.root().begin()
+
+    def _move_to_placeholder_group(self, placeholder, nodes_loaded):
+        """
+        opening the placeholder's group and copying loaded nodes in it.
+
+        Returns :
+            nodes_loaded (list): the new list of pasted nodes
+        """
+
+        groups_name = placeholder.data["group_name"]
+        reset_selection()
+        select_nodes(nodes_loaded)
+        if groups_name:
+            with node_tempfile() as filepath:
+                nuke.nodeCopy(filepath)
+                for node in nuke.selectedNodes():
+                    nuke.delete(node)
+                group = nuke.toNode(groups_name)
+                group.begin()
+                nuke.nodePaste(filepath)
+                nodes_loaded = nuke.selectedNodes()
+        return nodes_loaded
+
+    def _fix_z_order(self, placeholder):
+        """Fix the problem of z_order when a backdrop is loaded."""
+
+        nodes_loaded = placeholder.data["last_loaded"]
+        loaded_backdrops = []
+        bd_orders = set()
+        for node in nodes_loaded:
+            if isinstance(node, nuke.BackdropNode):
+                loaded_backdrops.append(node)
+                bd_orders.add(node.knob("z_order").getValue())
+
+        if not bd_orders:
+            return
+
+        sib_orders = set()
+        for node_name in placeholder.data["siblings"]:
+            node = nuke.toNode(node_name)
+            if isinstance(node, nuke.BackdropNode):
+                sib_orders.add(node.knob("z_order").getValue())
+
+        if not sib_orders:
+            return
+
+        min_order = min(bd_orders)
+        max_order = max(sib_orders)
+        for backdrop_node in loaded_backdrops:
+            z_order = backdrop_node.knob("z_order").getValue()
+            backdrop_node.knob("z_order").setValue(
+                z_order + max_order - min_order + 1)
+
+    def _imprint_siblings(self, placeholder):
+        """
+        - add siblings names to placeholder attributes (nodes loaded with it)
+        - add Id to the attributes of all the other nodes
+        """
+
+        loaded_nodes = placeholder.data["last_loaded"]
+        loaded_nodes_set = set(loaded_nodes)
+        data = {"repre_id": str(placeholder.data["last_repre_id"])}
+
+        for node in loaded_nodes:
+            node_knobs = node.knobs()
+            if "builder_type" not in node_knobs:
+                # save the id of representation for all imported nodes
+                imprint(node, data)
+                node.knob("repre_id").setVisible(False)
+                refresh_node(node)
+                continue
+
+            if (
+                "is_placeholder" not in node_knobs
+                or (
+                    "is_placeholder" in node_knobs
+                    and node.knob("is_placeholder").value()
+                )
+            ):
+                siblings = list(loaded_nodes_set - {node})
+                siblings_name = get_names_from_nodes(siblings)
+                siblings = {"siblings": siblings_name}
+                imprint(node, siblings)
+
+    def _imprint_inits(self):
+        """Add initial positions and dimensions to the attributes"""
+
+        for node in nuke.allNodes():
+            refresh_node(node)
+            imprint(node, {"x_init": node.xpos(), "y_init": node.ypos()})
+            node.knob("x_init").setVisible(False)
+            node.knob("y_init").setVisible(False)
+            width = node.screenWidth()
+            height = node.screenHeight()
+            if "bdwidth" in node.knobs():
+                imprint(node, {"w_init": width, "h_init": height})
+                node.knob("w_init").setVisible(False)
+                node.knob("h_init").setVisible(False)
+            refresh_node(node)
+
+    def _update_nodes(
+        self, placeholder, nodes, considered_nodes, offset_y=None
+    ):
+        """Adjust backdrop nodes dimensions and positions.
+
+        Considering some nodes sizes.
+
+        Args:
+            nodes (list): list of nodes to update
+            considered_nodes (list): list of nodes to consider while updating
+                positions and dimensions
+            offset (int): distance between copies
+        """
+
+        placeholder_node = nuke.toNode(placeholder.scene_identifier)
+
+        min_x, min_y, max_x, max_y = get_extreme_positions(considered_nodes)
+
+        diff_x = diff_y = 0
+        contained_nodes = []  # for backdrops
+
+        if offset_y is None:
+            width_ph = placeholder_node.screenWidth()
+            height_ph = placeholder_node.screenHeight()
+            diff_y = max_y - min_y - height_ph
+            diff_x = max_x - min_x - width_ph
+            contained_nodes = [placeholder_node]
+            min_x = placeholder_node.xpos()
+            min_y = placeholder_node.ypos()
+        else:
+            siblings = get_nodes_by_names(placeholder.data["siblings"])
+            minX, _, maxX, _ = get_extreme_positions(siblings)
+            diff_y = max_y - min_y + 20
+            diff_x = abs(max_x - min_x - maxX + minX)
+            contained_nodes = considered_nodes
+
+        if diff_y <= 0 and diff_x <= 0:
+            return
+
+        for node in nodes:
+            refresh_node(node)
+
+            if (
+                node == placeholder_node
+                or node in considered_nodes
+            ):
+                continue
+
+            if (
+                not isinstance(node, nuke.BackdropNode)
+                or (
+                    isinstance(node, nuke.BackdropNode)
+                    and not set(contained_nodes) <= set(node.getNodes())
+                )
+            ):
+                if offset_y is None and node.xpos() >= min_x:
+                    node.setXpos(node.xpos() + diff_x)
+
+                if node.ypos() >= min_y:
+                    node.setYpos(node.ypos() + diff_y)
+
+            else:
+                width = node.screenWidth()
+                height = node.screenHeight()
+                node.knob("bdwidth").setValue(width + diff_x)
+                node.knob("bdheight").setValue(height + diff_y)
+
+            refresh_node(node)
+
+    def _set_loaded_connections(self, placeholder):
+        """
+        set inputs and outputs of loaded nodes"""
+
+        placeholder_node = nuke.toNode(placeholder.scene_identifier)
+        input_node, output_node = get_group_io_nodes(
+            placeholder.data["last_loaded"]
+        )
+        for node in placeholder_node.dependent():
+            for idx in range(node.inputs()):
+                if node.input(idx) == placeholder_node and output_node:
+                    node.setInput(idx, output_node)
+
+        for node in placeholder_node.dependencies():
+            for idx in range(placeholder_node.inputs()):
+                if placeholder_node.input(idx) == node and input_node:
+                    input_node.setInput(0, node)
+
+    def _create_sib_copies(self, placeholder):
+        """ creating copies of the palce_holder siblings (the ones who were
+        loaded with it) for the new nodes added
+
+        Returns :
+            copies (dict) : with copied nodes names and their copies
+        """
+
+        copies = {}
+        siblings = get_nodes_by_names(placeholder.data["siblings"])
+        for node in siblings:
+            new_node = duplicate_node(node)
+
+            x_init = int(new_node.knob("x_init").getValue())
+            y_init = int(new_node.knob("y_init").getValue())
+            new_node.setXYpos(x_init, y_init)
+            if isinstance(new_node, nuke.BackdropNode):
+                w_init = new_node.knob("w_init").getValue()
+                h_init = new_node.knob("h_init").getValue()
+                new_node.knob("bdwidth").setValue(w_init)
+                new_node.knob("bdheight").setValue(h_init)
+                refresh_node(node)
+
+            if "repre_id" in node.knobs().keys():
+                node.removeKnob(node.knob("repre_id"))
+            copies[node.name()] = new_node
+        return copies
+
+    def _set_copies_connections(self, placeholder, copies):
+        """Set inputs and outputs of the copies.
+
+        Args:
+            copies (dict): Copied nodes by their names.
+        """
+
+        last_input, last_output = get_group_io_nodes(
+            placeholder.data["last_loaded"]
+        )
+        siblings = get_nodes_by_names(placeholder.data["siblings"])
+        siblings_input, siblings_output = get_group_io_nodes(siblings)
+        copy_input = copies[siblings_input.name()]
+        copy_output = copies[siblings_output.name()]
+
+        for node_init in siblings:
+            if node_init == siblings_output:
+                continue
+
+            node_copy = copies[node_init.name()]
+            for node in node_init.dependent():
+                for idx in range(node.inputs()):
+                    if node.input(idx) != node_init:
+                        continue
+
+                    if node in siblings:
+                        copies[node.name()].setInput(idx, node_copy)
+                    else:
+                        last_input.setInput(0, node_copy)
+
+            for node in node_init.dependencies():
+                for idx in range(node_init.inputs()):
+                    if node_init.input(idx) != node:
+                        continue
+
+                    if node_init == siblings_input:
+                        copy_input.setInput(idx, node)
+                    elif node in siblings:
+                        node_copy.setInput(idx, copies[node.name()])
+                    else:
+                        node_copy.setInput(idx, last_output)
+
+        siblings_input.setInput(0, copy_output)

client/ayon_core/hosts/unreal/ue_workers.py

@@ -260,11 +260,11 @@ class UEProjectGenerationWorker(UEWorker):
                 self.failed.emit(msg, return_code)
                 raise RuntimeError(msg)
 
-        # ensure we have PySide2 installed in engine
+        # ensure we have PySide2/6 installed in engine
 
         self.progress.emit(0)
         self.stage_begin.emit(
-            (f"Checking PySide2 installation... {stage_count} "
+            (f"Checking Qt bindings installation... {stage_count} "
              f" out of {stage_count}"))
         python_path = None
         if platform.system().lower() == "windows":
@@ -287,11 +287,30 @@ class UEProjectGenerationWorker(UEWorker):
             msg = f"Unreal Python not found at {python_path}"
             self.failed.emit(msg, 1)
             raise RuntimeError(msg)
-        pyside_cmd = [python_path.as_posix(),
-                      "-m",
-                      "pip",
-                      "install",
-                      "pyside2"]
+
+        pyside_version = "PySide2"
+        ue_version = self.ue_version.split(".")
+        if int(ue_version[0]) == 5 and int(ue_version[1]) >= 4:
+            # Use PySide6 6.6.3 because 6.7.0 had a bug
+            #   - 'QPushButton' can't be added to 'QBoxLayout'
+            pyside_version = "PySide6==6.6.3"
+
+        site_packages_prefix = python_path.parent.as_posix()
+
+        pyside_cmd = [
+            python_path.as_posix(),
+            "-m", "pip",
+            "install",
+            "--ignore-installed",
+            pyside_version,
+
+        ]
+
+        if platform.system().lower() == "windows":
+            pyside_cmd += ["--target", site_packages_prefix]
+
+        print(f"--- Installing {pyside_version} ...")
+        print(" ".join(pyside_cmd))
 
         pyside_install = subprocess.Popen(pyside_cmd,
                                           stdout=subprocess.PIPE,
@@ -306,8 +325,8 @@ class UEProjectGenerationWorker(UEWorker):
         return_code = pyside_install.wait()
 
         if return_code and return_code != 0:
-            msg = ("Failed to create the project! "
-                   "The installation of PySide2 has failed!")
+            msg = (f"Failed to create the project! {return_code} "
+                   f"The installation of {pyside_version} has failed!: {pyside_install}")
             self.failed.emit(msg, return_code)
             raise RuntimeError(msg)
 

client/ayon_core/lib/__init__.py

@@ -27,6 +27,10 @@ from .local_settings import (
     get_openpype_username,
 )
 from .ayon_connection import initialize_ayon_connection
+from .cache import (
+    CacheItem,
+    NestedCacheItem,
+)
 from .events import (
     emit_event,
     register_event_callback
@@ -157,6 +161,9 @@ __all__ = [
 
     "initialize_ayon_connection",
 
+    "CacheItem",
+    "NestedCacheItem",
+
     "emit_event",
     "register_event_callback",
 

client/ayon_core/lib/cache.py

@@ -0,0 +1,250 @@
+import time
+import collections
+
+InitInfo = collections.namedtuple(
+    "InitInfo",
+    ["default_factory", "lifetime"]
+)
+
+
+def _default_factory_func():
+    return None
+
+
+class CacheItem:
+    """Simple cache item with lifetime and default factory for default value.
+
+    Default factory should return default value that is used on init
+        and on reset.
+
+    Args:
+        default_factory (Optional[callable]): Function that returns default
+            value used on init and on reset.
+        lifetime (Optional[int]): Lifetime of the cache data in seconds.
+            Default lifetime is 120 seconds.
+
+    """
+    def __init__(self, default_factory=None, lifetime=None):
+        if lifetime is None:
+            lifetime = 120
+        self._lifetime = lifetime
+        self._last_update = None
+        if default_factory is None:
+            default_factory = _default_factory_func
+        self._default_factory = default_factory
+        self._data = default_factory()
+
+    @property
+    def is_valid(self):
+        """Is cache valid to use.
+
+        Return:
+            bool: True if cache is valid, False otherwise.
+
+        """
+        if self._last_update is None:
+            return False
+
+        return (time.time() - self._last_update) < self._lifetime
+
+    def set_lifetime(self, lifetime):
+        """Change lifetime of cache item.
+
+        Args:
+            lifetime (int): Lifetime of the cache data in seconds.
+        """
+
+        self._lifetime = lifetime
+
+    def set_invalid(self):
+        """Set cache as invalid."""
+
+        self._last_update = None
+
+    def reset(self):
+        """Set cache as invalid and reset data."""
+
+        self._last_update = None
+        self._data = self._default_factory()
+
+    def get_data(self):
+        """Receive cached data.
+
+        Returns:
+            Any: Any data that are cached.
+
+        """
+        return self._data
+
+    def update_data(self, data):
+        """Update cache data.
+
+        Args:
+            data (Any): Any data that are cached.
+
+        """
+        self._data = data
+        self._last_update = time.time()
+
+
+class NestedCacheItem:
+    """Helper for cached items stored in nested structure.
+
+    Example:
+        >>> cache = NestedCacheItem(levels=2, default_factory=lambda: 0)
+        >>> cache["a"]["b"].is_valid
+        False
+        >>> cache["a"]["b"].get_data()
+        0
+        >>> cache["a"]["b"] = 1
+        >>> cache["a"]["b"].is_valid
+        True
+        >>> cache["a"]["b"].get_data()
+        1
+        >>> cache.reset()
+        >>> cache["a"]["b"].is_valid
+        False
+
+    Args:
+        levels (int): Number of nested levels where read cache is stored.
+        default_factory (Optional[callable]): Function that returns default
+            value used on init and on reset.
+        lifetime (Optional[int]): Lifetime of the cache data in seconds.
+            Default value is based on default value of 'CacheItem'.
+        _init_info (Optional[InitInfo]): Private argument. Init info for
+            nested cache where created from parent item.
+
+    """
+    def __init__(
+        self, levels=1, default_factory=None, lifetime=None, _init_info=None
+    ):
+        if levels < 1:
+            raise ValueError("Nested levels must be greater than 0")
+        self._data_by_key = {}
+        if _init_info is None:
+            _init_info = InitInfo(default_factory, lifetime)
+        self._init_info = _init_info
+        self._levels = levels
+
+    def __getitem__(self, key):
+        """Get cached data.
+
+        Args:
+            key (str): Key of the cache item.
+
+        Returns:
+            Union[NestedCacheItem, CacheItem]: Cache item.
+
+        """
+        cache = self._data_by_key.get(key)
+        if cache is None:
+            if self._levels > 1:
+                cache = NestedCacheItem(
+                    levels=self._levels - 1,
+                    _init_info=self._init_info
+                )
+            else:
+                cache = CacheItem(
+                    self._init_info.default_factory,
+                    self._init_info.lifetime
+                )
+            self._data_by_key[key] = cache
+        return cache
+
+    def __setitem__(self, key, value):
+        """Update cached data.
+
+        Args:
+            key (str): Key of the cache item.
+            value (Any): Any data that are cached.
+
+        """
+        if self._levels > 1:
+            raise AttributeError((
+                "{} does not support '__setitem__'. Lower nested level by {}"
+            ).format(self.__class__.__name__, self._levels - 1))
+        cache = self[key]
+        cache.update_data(value)
+
+    def get(self, key):
+        """Get cached data.
+
+        Args:
+            key (str): Key of the cache item.
+
+        Returns:
+            Union[NestedCacheItem, CacheItem]: Cache item.
+
+        """
+        return self[key]
+
+    def cached_count(self):
+        """Amount of cached items.
+
+        Returns:
+            int: Amount of cached items.
+
+        """
+        return len(self._data_by_key)
+
+    def clear_key(self, key):
+        """Clear cached item by key.
+
+        Args:
+            key (str): Key of the cache item.
+
+        """
+        self._data_by_key.pop(key, None)
+
+    def clear_invalid(self):
+        """Clear all invalid cache items.
+
+        Note:
+            To clear all cache items use 'reset'.
+
+        """
+        changed = {}
+        children_are_nested = self._levels > 1
+        for key, cache in tuple(self._data_by_key.items()):
+            if children_are_nested:
+                output = cache.clear_invalid()
+                if output:
+                    changed[key] = output
+                if not cache.cached_count():
+                    self._data_by_key.pop(key)
+            elif not cache.is_valid:
+                changed[key] = cache.get_data()
+                self._data_by_key.pop(key)
+        return changed
+
+    def reset(self):
+        """Reset cache.
+
+        Note:
+            To clear only invalid cache items use 'clear_invalid'.
+
+        """
+        self._data_by_key = {}
+
+    def set_lifetime(self, lifetime):
+        """Change lifetime of all children cache items.
+
+        Args:
+            lifetime (int): Lifetime of the cache data in seconds.
+
+        """
+        self._init_info.lifetime = lifetime
+        for cache in self._data_by_key.values():
+            cache.set_lifetime(lifetime)
+
+    @property
+    def is_valid(self):
+        """Raise reasonable error when called on wrong level.
+
+        Raises:
+            AttributeError: If called on nested cache item.
+
+        """
+        raise AttributeError((
+            "{} does not support 'is_valid'. Lower nested level by '{}'"
+        ).format(self.__class__.__name__, self._levels))

client/ayon_core/pipeline/__init__.py

@@ -97,6 +97,15 @@ from .context_tools import (
     get_current_folder_path,
     get_current_task_name
 )
+
+from .workfile import (
+    discover_workfile_build_plugins,
+    register_workfile_build_plugin,
+    deregister_workfile_build_plugin,
+    register_workfile_build_plugin_path,
+    deregister_workfile_build_plugin_path,
+)
+
 install = install_host
 uninstall = uninstall_host
 
@@ -198,6 +207,13 @@ __all__ = (
     "get_current_folder_path",
     "get_current_task_name",
 
+    # Workfile templates
+    "discover_workfile_build_plugins",
+    "register_workfile_build_plugin",
+    "deregister_workfile_build_plugin",
+    "register_workfile_build_plugin_path",
+    "deregister_workfile_build_plugin_path",
+
     # Backwards compatible function names
     "install",
     "uninstall",

client/ayon_core/pipeline/anatomy/anatomy.py

@@ -3,11 +3,16 @@ import re
 import copy
 import platform
 import collections
-import time
 
 import ayon_api
 
-from ayon_core.lib import Logger, get_local_site_id, StringTemplate
+from ayon_core.lib import (
+    Logger,
+    get_local_site_id,
+    StringTemplate,
+    CacheItem,
+    NestedCacheItem,
+)
 from ayon_core.addon import AddonsManager
 
 from .exceptions import RootCombinationError, ProjectNotSet
@@ -397,62 +402,11 @@ class BaseAnatomy(object):
             )
 
 
-class CacheItem:
-    """Helper to cache data.
-
-    Helper does not handle refresh of data and does not mark data as outdated.
-    Who uses the object should check of outdated state on his own will.
-    """
-
-    default_lifetime = 10
-
-    def __init__(self, lifetime=None):
-        self._data = None
-        self._cached = None
-        self._lifetime = lifetime or self.default_lifetime
-
-    @property
-    def data(self):
-        """Cached data/object.
-
-        Returns:
-            Any: Whatever was cached.
-        """
-
-        return self._data
-
-    @property
-    def is_outdated(self):
-        """Item has outdated cache.
-
-        Lifetime of cache item expired or was not yet set.
-
-        Returns:
-            bool: Item is outdated.
-        """
-
-        if self._cached is None:
-            return True
-        return (time.time() - self._cached) > self._lifetime
-
-    def update_data(self, data):
-        """Update cache of data.
-
-        Args:
-            data (Any): Data to cache.
-        """
-
-        self._data = data
-        self._cached = time.time()
-
-
 class Anatomy(BaseAnatomy):
-    _sitesync_addon_cache = CacheItem()
-    _project_cache = collections.defaultdict(CacheItem)
-    _default_site_id_cache = collections.defaultdict(CacheItem)
-    _root_overrides_cache = collections.defaultdict(
-        lambda: collections.defaultdict(CacheItem)
-    )
+    _project_cache = NestedCacheItem(lifetime=10)
+    _sitesync_addon_cache = CacheItem(lifetime=60)
+    _default_site_id_cache = NestedCacheItem(lifetime=60)
+    _root_overrides_cache = NestedCacheItem(2, lifetime=60)
 
     def __init__(
         self, project_name=None, site_name=None, project_entity=None
@@ -477,18 +431,18 @@ class Anatomy(BaseAnatomy):
     @classmethod
     def get_project_entity_from_cache(cls, project_name):
         project_cache = cls._project_cache[project_name]
-        if project_cache.is_outdated:
+        if not project_cache.is_valid:
             project_cache.update_data(ayon_api.get_project(project_name))
-        return copy.deepcopy(project_cache.data)
+        return copy.deepcopy(project_cache.get_data())
 
     @classmethod
     def get_sitesync_addon(cls):
-        if cls._sitesync_addon_cache.is_outdated:
+        if not cls._sitesync_addon_cache.is_valid:
             manager = AddonsManager()
             cls._sitesync_addon_cache.update_data(
                 manager.get_enabled_addon("sitesync")
             )
-        return cls._sitesync_addon_cache.data
+        return cls._sitesync_addon_cache.get_data()
 
     @classmethod
     def _get_studio_roots_overrides(cls, project_name):
@@ -533,14 +487,14 @@ class Anatomy(BaseAnatomy):
         elif not site_name:
             # Use sync server to receive active site name
             project_cache = cls._default_site_id_cache[project_name]
-            if project_cache.is_outdated:
+            if not project_cache.is_valid:
                 project_cache.update_data(
                     sitesync_addon.get_active_site_type(project_name)
                 )
-            site_name = project_cache.data
+            site_name = project_cache.get_data()
 
         site_cache = cls._root_overrides_cache[project_name][site_name]
-        if site_cache.is_outdated:
+        if not site_cache.is_valid:
             if site_name == "studio":
                 # Handle studio root overrides without sync server
                 # - studio root overrides can be done even without sync server
@@ -553,4 +507,4 @@ class Anatomy(BaseAnatomy):
                     project_name, site_name
                 )
             site_cache.update_data(roots_overrides)
-        return site_cache.data
+        return site_cache.get_data()

client/ayon_core/pipeline/farm/pyblish_functions.py

@@ -225,6 +225,7 @@ def create_skeleton_instance(
     instance_skeleton_data = {
         "productType": product_type,
         "productName": data["productName"],
+        "task": data["task"],
         "families": families,
         "folderPath": data["folderPath"],
         "frameStart": time_data.start,

client/ayon_core/pipeline/workfile/__init__.py

@@ -21,6 +21,15 @@ from .utils import (
 from .build_workfile import BuildWorkfile
 
 
+from .workfile_template_builder import (
+    discover_workfile_build_plugins,
+    register_workfile_build_plugin,
+    deregister_workfile_build_plugin,
+    register_workfile_build_plugin_path,
+    deregister_workfile_build_plugin_path,
+)
+
+
 __all__ = (
     "get_workfile_template_key_from_context",
     "get_workfile_template_key",
@@ -39,4 +48,10 @@ __all__ = (
     "should_open_workfiles_tool_on_launch",
 
     "BuildWorkfile",
+
+    "discover_workfile_build_plugins",
+    "register_workfile_build_plugin",
+    "deregister_workfile_build_plugin",
+    "register_workfile_build_plugin_path",
+    "deregister_workfile_build_plugin_path",
 )

client/ayon_core/pipeline/workfile/workfile_template_builder.py

@@ -36,6 +36,7 @@ from ayon_core.lib import (
     filter_profiles,
     attribute_definitions,
 )
+from ayon_core.lib.events import EventSystem, EventCallback, Event
 from ayon_core.lib.attribute_definitions import get_attributes_keys
 from ayon_core.pipeline import Anatomy
 from ayon_core.pipeline.load import (
@@ -43,6 +44,13 @@ from ayon_core.pipeline.load import (
     get_representation_contexts,
     load_with_repre_context,
 )
+from ayon_core.pipeline.plugin_discover import (
+    discover,
+    register_plugin,
+    register_plugin_path,
+    deregister_plugin,
+    deregister_plugin_path
+)
 
 from ayon_core.pipeline.create import (
     discover_legacy_creator_plugins,
@@ -124,6 +132,8 @@ class AbstractTemplateBuilder(object):
         self._current_task_entity = _NOT_SET
         self._linked_folder_entities = _NOT_SET
 
+        self._event_system = EventSystem()
+
     @property
     def project_name(self):
         if isinstance(self._host, HostBase):
@@ -211,10 +221,14 @@ class AbstractTemplateBuilder(object):
         Returns:
             List[PlaceholderPlugin]: Plugin classes available for host.
         """
+        plugins = []
 
+        # Backwards compatibility
         if hasattr(self._host, "get_workfile_build_placeholder_plugins"):
             return self._host.get_workfile_build_placeholder_plugins()
-        return []
+
+        plugins.extend(discover(PlaceholderPlugin))
+        return plugins
 
     @property
     def host(self):
@@ -257,6 +271,8 @@ class AbstractTemplateBuilder(object):
 
         self._project_settings = None
 
+        self._event_system = EventSystem()
+
         self.clear_shared_data()
         self.clear_shared_populate_data()
 
@@ -498,15 +514,21 @@ class AbstractTemplateBuilder(object):
                                               process if version is created
 
         """
-        template_preset = self.get_template_preset()
-
-        if template_path is None:
-            template_path = template_preset["path"]
-
-        if keep_placeholders is None:
-            keep_placeholders = template_preset["keep_placeholder"]
-        if create_first_version is None:
-            create_first_version = template_preset["create_first_version"]
+        if any(
+            value is None
+            for value in [
+                template_path,
+                keep_placeholders,
+                create_first_version,
+            ]
+        ):
+            template_preset = self.get_template_preset()
+            if template_path is None:
+                template_path = template_preset["path"]
+            if keep_placeholders is None:
+                keep_placeholders = template_preset["keep_placeholder"]
+            if create_first_version is None:
+                create_first_version = template_preset["create_first_version"]
 
         # check if first version is created
         created_version_workfile = False
@@ -729,6 +751,16 @@ class AbstractTemplateBuilder(object):
 
                 placeholder.set_finished()
 
+            # Trigger on_depth_processed event
+            self.emit_event(
+                topic="template.depth_processed",
+                data={
+                    "depth": iter_counter,
+                    "placeholders_by_scene_id": placeholder_by_scene_id
+                },
+                source="builder"
+            )
+
             # Clear shared data before getting new placeholders
             self.clear_shared_populate_data()
 
@@ -747,6 +779,16 @@ class AbstractTemplateBuilder(object):
                 placeholder_by_scene_id[identifier] = placeholder
                 placeholders.append(placeholder)
 
+        # Trigger on_finished event
+        self.emit_event(
+            topic="template.finished",
+            data={
+                "depth": iter_counter,
+                "placeholders_by_scene_id": placeholder_by_scene_id,
+            },
+            source="builder"
+        )
+
         self.refresh()
 
     def _get_build_profiles(self):
@@ -772,12 +814,14 @@ class AbstractTemplateBuilder(object):
         - 'project_settings/{host name}/templated_workfile_build/profiles'
 
         Returns:
-            str: Path to a template file with placeholders.
+            dict: Dictionary with `path`, `keep_placeholder` and
+                `create_first_version` settings from the template preset
+                for current context.
 
         Raises:
             TemplateProfileNotFound: When profiles are not filled.
             TemplateLoadFailed: Profile was found but path is not set.
-            TemplateNotFound: Path was set but file does not exists.
+            TemplateNotFound: Path was set but file does not exist.
         """
 
         host_name = self.host_name
@@ -872,6 +916,30 @@ class AbstractTemplateBuilder(object):
             "create_first_version": create_first_version
         }
 
+    def emit_event(self, topic, data=None, source=None) -> Event:
+        return self._event_system.emit(topic, data, source)
+
+    def add_event_callback(self, topic, callback, order=None):
+        return self._event_system.add_callback(topic, callback, order=order)
+
+    def add_on_finished_callback(
+        self, callback, order=None
+    ) -> EventCallback:
+        return self.add_event_callback(
+            topic="template.finished",
+            callback=callback,
+            order=order
+        )
+
+    def add_on_depth_processed_callback(
+        self, callback, order=None
+    ) -> EventCallback:
+        return self.add_event_callback(
+            topic="template.depth_processed",
+            callback=callback,
+            order=order
+        )
+
 
 @six.add_metaclass(ABCMeta)
 class PlaceholderPlugin(object):
@@ -1904,3 +1972,23 @@ class CreatePlaceholderItem(PlaceholderItem):
 
     def create_failed(self, creator_data):
         self._failed_created_publish_instances.append(creator_data)
+
+
+def discover_workfile_build_plugins(*args, **kwargs):
+    return discover(PlaceholderPlugin, *args, **kwargs)
+
+
+def register_workfile_build_plugin(plugin: PlaceholderPlugin):
+    register_plugin(PlaceholderPlugin, plugin)
+
+
+def deregister_workfile_build_plugin(plugin: PlaceholderPlugin):
+    deregister_plugin(PlaceholderPlugin, plugin)
+
+
+def register_workfile_build_plugin_path(path: str):
+    register_plugin_path(PlaceholderPlugin, path)
+
+
+def deregister_workfile_build_plugin_path(path: str):
+    deregister_plugin_path(PlaceholderPlugin, path)

client/ayon_core/tools/common_models/cache.py

@@ -1,239 +1,31 @@
-import time
-import collections
+import warnings
 
-InitInfo = collections.namedtuple(
-    "InitInfo",
-    ["default_factory", "lifetime"]
+from ayon_core.lib import CacheItem as _CacheItem
+from ayon_core.lib import NestedCacheItem as _NestedCacheItem
+
+
+# Cache classes were moved to `ayon_core.lib.cache`
+class CacheItem(_CacheItem):
+    def __init__(self, *args, **kwargs):
+        warnings.warn(
+            "Used 'CacheItem' from deprecated location "
+            "'ayon_core.tools.common_models', use 'ayon_core.lib' instead.",
+            DeprecationWarning,
+        )
+        super().__init__(*args, **kwargs)
+
+
+class NestedCacheItem(_NestedCacheItem):
+    def __init__(self, *args, **kwargs):
+        warnings.warn(
+            "Used 'NestedCacheItem' from deprecated location "
+            "'ayon_core.tools.common_models', use 'ayon_core.lib' instead.",
+            DeprecationWarning,
+        )
+        super().__init__(*args, **kwargs)
+
+
+__all__ = (
+    "CacheItem",
+    "NestedCacheItem",
 )
-
-
-def _default_factory_func():
-    return None
-
-
-class CacheItem:
-    """Simple cache item with lifetime and default value.
-
-    Args:
-        default_factory (Optional[callable]): Function that returns default
-            value used on init and on reset.
-        lifetime (Optional[int]): Lifetime of the cache data in seconds.
-    """
-
-    def __init__(self, default_factory=None, lifetime=None):
-        if lifetime is None:
-            lifetime = 120
-        self._lifetime = lifetime
-        self._last_update = None
-        if default_factory is None:
-            default_factory = _default_factory_func
-        self._default_factory = default_factory
-        self._data = default_factory()
-
-    @property
-    def is_valid(self):
-        """Is cache valid to use.
-
-        Return:
-            bool: True if cache is valid, False otherwise.
-        """
-
-        if self._last_update is None:
-            return False
-
-        return (time.time() - self._last_update) < self._lifetime
-
-    def set_lifetime(self, lifetime):
-        """Change lifetime of cache item.
-
-        Args:
-            lifetime (int): Lifetime of the cache data in seconds.
-        """
-
-        self._lifetime = lifetime
-
-    def set_invalid(self):
-        """Set cache as invalid."""
-
-        self._last_update = None
-
-    def reset(self):
-        """Set cache as invalid and reset data."""
-
-        self._last_update = None
-        self._data = self._default_factory()
-
-    def get_data(self):
-        """Receive cached data.
-
-        Returns:
-            Any: Any data that are cached.
-        """
-
-        return self._data
-
-    def update_data(self, data):
-        self._data = data
-        self._last_update = time.time()
-
-
-class NestedCacheItem:
-    """Helper for cached items stored in nested structure.
-
-    Example:
-        >>> cache = NestedCacheItem(levels=2, default_factory=lambda: 0)
-        >>> cache["a"]["b"].is_valid
-        False
-        >>> cache["a"]["b"].get_data()
-        0
-        >>> cache["a"]["b"] = 1
-        >>> cache["a"]["b"].is_valid
-        True
-        >>> cache["a"]["b"].get_data()
-        1
-        >>> cache.reset()
-        >>> cache["a"]["b"].is_valid
-        False
-
-    Args:
-        levels (int): Number of nested levels where read cache is stored.
-        default_factory (Optional[callable]): Function that returns default
-            value used on init and on reset.
-        lifetime (Optional[int]): Lifetime of the cache data in seconds.
-        _init_info (Optional[InitInfo]): Private argument. Init info for
-            nested cache where created from parent item.
-    """
-
-    def __init__(
-        self, levels=1, default_factory=None, lifetime=None, _init_info=None
-    ):
-        if levels < 1:
-            raise ValueError("Nested levels must be greater than 0")
-        self._data_by_key = {}
-        if _init_info is None:
-            _init_info = InitInfo(default_factory, lifetime)
-        self._init_info = _init_info
-        self._levels = levels
-
-    def __getitem__(self, key):
-        """Get cached data.
-
-        Args:
-            key (str): Key of the cache item.
-
-        Returns:
-            Union[NestedCacheItem, CacheItem]: Cache item.
-        """
-
-        cache = self._data_by_key.get(key)
-        if cache is None:
-            if self._levels > 1:
-                cache = NestedCacheItem(
-                    levels=self._levels - 1,
-                    _init_info=self._init_info
-                )
-            else:
-                cache = CacheItem(
-                    self._init_info.default_factory,
-                    self._init_info.lifetime
-                )
-            self._data_by_key[key] = cache
-        return cache
-
-    def __setitem__(self, key, value):
-        """Update cached data.
-
-        Args:
-            key (str): Key of the cache item.
-            value (Any): Any data that are cached.
-        """
-
-        if self._levels > 1:
-            raise AttributeError((
-                "{} does not support '__setitem__'. Lower nested level by {}"
-            ).format(self.__class__.__name__, self._levels - 1))
-        cache = self[key]
-        cache.update_data(value)
-
-    def get(self, key):
-        """Get cached data.
-
-        Args:
-            key (str): Key of the cache item.
-
-        Returns:
-            Union[NestedCacheItem, CacheItem]: Cache item.
-        """
-
-        return self[key]
-
-    def cached_count(self):
-        """Amount of cached items.
-
-        Returns:
-            int: Amount of cached items.
-        """
-
-        return len(self._data_by_key)
-
-    def clear_key(self, key):
-        """Clear cached item by key.
-
-        Args:
-            key (str): Key of the cache item.
-        """
-
-        self._data_by_key.pop(key, None)
-
-    def clear_invalid(self):
-        """Clear all invalid cache items.
-
-        Note:
-            To clear all cache items use 'reset'.
-        """
-
-        changed = {}
-        children_are_nested = self._levels > 1
-        for key, cache in tuple(self._data_by_key.items()):
-            if children_are_nested:
-                output = cache.clear_invalid()
-                if output:
-                    changed[key] = output
-                if not cache.cached_count():
-                    self._data_by_key.pop(key)
-            elif not cache.is_valid:
-                changed[key] = cache.get_data()
-                self._data_by_key.pop(key)
-        return changed
-
-    def reset(self):
-        """Reset cache.
-
-        Note:
-            To clear only invalid cache items use 'clear_invalid'.
-        """
-
-        self._data_by_key = {}
-
-    def set_lifetime(self, lifetime):
-        """Change lifetime of all children cache items.
-
-        Args:
-            lifetime (int): Lifetime of the cache data in seconds.
-        """
-
-        self._init_info.lifetime = lifetime
-        for cache in self._data_by_key.values():
-            cache.set_lifetime(lifetime)
-
-    @property
-    def is_valid(self):
-        """Raise reasonable error when called on wront level.
-
-        Raises:
-            AttributeError: If called on nested cache item.
-        """
-
-        raise AttributeError((
-            "{} does not support 'is_valid'. Lower nested level by '{}'"
-        ).format(self.__class__.__name__, self._levels))

client/ayon_core/tools/common_models/hierarchy.py

@@ -6,8 +6,7 @@ import ayon_api
 import six
 
 from ayon_core.style import get_default_entity_icon_color
-
-from .cache import NestedCacheItem
+from ayon_core.lib import NestedCacheItem
 
 HIERARCHY_MODEL_SENDER = "hierarchy.model"
 

client/ayon_core/tools/common_models/projects.py

@@ -5,8 +5,7 @@ import ayon_api
 import six
 
 from ayon_core.style import get_default_entity_icon_color
-
-from .cache import CacheItem
+from ayon_core.lib import CacheItem
 
 PROJECTS_MODEL_SENDER = "projects.model"
 

client/ayon_core/tools/common_models/thumbnails.py

@@ -5,7 +5,7 @@ import collections
 import ayon_api
 import appdirs
 
-from .cache import NestedCacheItem
+from ayon_core.lib import NestedCacheItem
 
 FileInfo = collections.namedtuple(
     "FileInfo",

client/ayon_core/tools/loader/models/actions.py

@@ -6,6 +6,7 @@ import uuid
 
 import ayon_api
 
+from ayon_core.lib import NestedCacheItem
 from ayon_core.pipeline.load import (
     discover_loader_plugins,
     ProductLoaderPlugin,
@@ -17,7 +18,6 @@ from ayon_core.pipeline.load import (
     LoadError,
     IncompatibleLoaderError,
 )
-from ayon_core.tools.common_models import NestedCacheItem
 from ayon_core.tools.loader.abstract import ActionItem
 
 ACTIONS_MODEL_SENDER = "actions.model"

client/ayon_core/tools/loader/models/products.py

@@ -5,8 +5,8 @@ import arrow
 import ayon_api
 from ayon_api.operations import OperationsSession
 
+from ayon_core.lib import NestedCacheItem
 from ayon_core.style import get_default_entity_icon_color
-from ayon_core.tools.common_models import NestedCacheItem
 from ayon_core.tools.loader.abstract import (
     ProductTypeItem,
     ProductItem,

client/ayon_core/tools/loader/models/sitesync.py

@@ -2,9 +2,8 @@ import collections
 
 from ayon_api import get_representations, get_versions_links
 
-from ayon_core.lib import Logger
+from ayon_core.lib import Logger, NestedCacheItem
 from ayon_core.addon import AddonsManager
-from ayon_core.tools.common_models import NestedCacheItem
 from ayon_core.tools.loader.abstract import ActionItem
 
 DOWNLOAD_IDENTIFIER = "sitesync.download"

pyproject.toml

@@ -106,7 +106,7 @@ line-ending = "auto"
 
 [tool.codespell]
 # Ignore words that are not in the dictionary.
-ignore-words-list = "ayon,ynput,parms,parm,hda,developpement"
+ignore-words-list = "ayon,ynput,parms,parm,hda,developpement,ue"
 
 skip = "./.*,./package/*,*/vendor/*,*/unreal/integration/*,*/aftereffects/api/extension/js/libs/*"
 count = true

server_addon/applications/client/ayon_applications/addon.py

@@ -110,6 +110,26 @@ class ApplicationsAddon(AYONAddon, IPluginPaths):
             ]
         }
 
+    def launch_application(
+        self, app_name, project_name, folder_path, task_name
+    ):
+        """Launch application.
+
+        Args:
+            app_name (str): Full application name e.g. 'maya/2024'.
+            project_name (str): Project name.
+            folder_path (str): Folder path.
+            task_name (str): Task name.
+
+        """
+        app_manager = self.get_applications_manager()
+        return app_manager.launch(
+            app_name,
+            project_name=project_name,
+            folder_path=folder_path,
+            task_name=task_name,
+        )
+
     # --- CLI ---
     def cli(self, addon_click_group):
         main_group = click_wrap.group(
@@ -134,6 +154,17 @@ class ApplicationsAddon(AYONAddon, IPluginPaths):
                 default=None
             )
         )
+        (
+            main_group.command(
+                self._cli_launch_applications,
+                name="launch",
+                help="Launch application"
+            )
+            .option("--app", required=True, help="Application name")
+            .option("--project", required=True, help="Project name")
+            .option("--folder", required=True, help="Folder path")
+            .option("--task", required=True, help="Task name")
+        )
         # Convert main command to click object and add it to parent group
         addon_click_group.add_command(
             main_group.to_click_obj()
@@ -171,3 +202,15 @@ class ApplicationsAddon(AYONAddon, IPluginPaths):
 
         with open(output_json_path, "w") as file_stream:
             json.dump(env, file_stream, indent=4)
+
+    def _cli_launch_applications(self, project, folder, task, app):
+        """Launch application.
+
+        Args:
+            project (str): Project name.
+            folder (str): Folder path.
+            task (str): Task name.
+            app (str): Full application name e.g. 'maya/2024'.
+
+        """
+        self.launch_application(app, project, folder, task)

server_addon/applications/package.py

@@ -1,3 +1,10 @@
 name = "applications"
 title = "Applications"
-version = "0.2.0"
+version = "0.2.1"
+
+ayon_server_version = ">=1.0.7"
+ayon_launcher_version = ">=1.0.2"
+ayon_required_addons = {
+    "core": ">0.3.0",
+}
+ayon_compatible_addons = {}

server_addon/deadline/package.py

@@ -1,3 +1,3 @@
 name = "deadline"
 title = "Deadline"
-version = "0.1.10"
+version = "0.1.11"

server_addon/deadline/server/settings/publish_plugins.py

@@ -191,7 +191,6 @@ class NukeSubmitDeadlineModel(BaseSettingsModel):
 
     @validator(
         "limit_groups",
-        "env_allowed_keys",
         "env_search_replace_values")
     def validate_unique_names(cls, value):
         ensure_unique_names(value)

server_addon/hiero/package.py

@@ -1,3 +1,3 @@
 name = "hiero"
 title = "Hiero"
-version = "0.1.2"
+version = "0.1.3"

server_addon/hiero/server/settings/imageio.py

@@ -149,15 +149,15 @@ class ImageIOSettings(BaseSettingsModel):
 
 DEFAULT_IMAGEIO_SETTINGS = {
     "workfile": {
-        "ocioConfigName": "nuke-default",
-        "workingSpace": "linear",
-        "viewerLut": "sRGB",
-        "eightBitLut": "sRGB",
-        "sixteenBitLut": "sRGB",
-        "logLut": "Cineon",
-        "floatLut": "linear",
-        "thumbnailLut": "sRGB",
-        "monitorOutLut": "sRGB"
+        "ocioConfigName": "aces_1.2",
+        "workingSpace": "role_scene_linear",
+        "viewerLut": "ACES/sRGB",
+        "eightBitLut": "role_matte_paint",
+        "sixteenBitLut": "role_texture_paint",
+        "logLut": "role_compositing_log",
+        "floatLut": "role_scene_linear",
+        "thumbnailLut": "ACES/sRGB",
+        "monitorOutLut": "ACES/sRGB"
     },
     "regexInputs": {
         "inputs": [

server_addon/maya/package.py

@@ -1,3 +1,3 @@
 name = "maya"
 title = "Maya"
-version = "0.1.16"
+version = "0.1.17"

server_addon/maya/server/settings/publishers.py

@@ -35,6 +35,51 @@ def angular_unit_enum():
     ]
 
 
+def extract_alembic_data_format_enum():
+    return [
+        {"label": "ogawa", "value": "ogawa"},
+        {"label": "HDF", "value": "HDF"}
+    ]
+
+
+def extract_alembic_overrides_enum():
+    return [
+        {"label": "Custom Attributes", "value": "attr"},
+        {"label": "Custom Attributes Prefix", "value": "attrPrefix"},
+        {"label": "Auto Subd", "value": "autoSubd"},
+        {"label": "Data Format", "value": "dataFormat"},
+        {"label": "Euler Filter", "value": "eulerFilter"},
+        {"label": "Mel Per Frame Callback", "value": "melPerFrameCallback"},
+        {"label": "Mel Post Job Callback", "value": "melPostJobCallback"},
+        {"label": "Pre Roll", "value": "preRoll"},
+        {"label": "Pre Roll Start Frame", "value": "preRollStartFrame"},
+        {
+            "label": "Python Per Frame Callback",
+            "value": "pythonPerFrameCallback"
+        },
+        {
+            "label": "Python Post Job Callback",
+            "value": "pythonPostJobCallback"
+        },
+        {"label": "Renderable Only", "value": "renderableOnly"},
+        {"label": "Strip Namespaces", "value": "stripNamespaces"},
+        {"label": "User Attr", "value": "userAttr"},
+        {"label": "User Attr Prefix", "value": "userAttrPrefix"},
+        {"label": "UV Write", "value": "uvWrite"},
+        {"label": "UVs Only", "value": "uvsOnly"},
+        {"label": "Verbose", "value": "verbose"},
+        {"label": "Visible Only", "value": "visibleOnly"},
+        {"label": "Whole Frame Geo", "value": "wholeFrameGeo"},
+        {"label": "World Space", "value": "worldSpace"},
+        {"label": "Write Color Sets", "value": "writeColorSets"},
+        {"label": "Write Creases", "value": "writeCreases"},
+        {"label": "Write Face Sets", "value": "writeFaceSets"},
+        {"label": "Write Normals", "value": "writeNormals"},
+        {"label": "Write UV Sets", "value": "writeUVSets"},
+        {"label": "Write Visibility", "value": "writeVisibility"}
+    ]
+
+
 class BasicValidateModel(BaseSettingsModel):
     enabled: bool = SettingsField(title="Enabled")
     optional: bool = SettingsField(title="Optional")
@@ -184,7 +229,7 @@ class ValidateAttributesModel(BaseSettingsModel):
 
         if not success:
             raise BadRequestException(
-                "The attibutes can't be parsed as json object"
+                "The attributes can't be parsed as json object"
             )
         return value
 
@@ -220,7 +265,7 @@ class ValidateUnrealStaticMeshNameModel(BaseSettingsModel):
     enabled: bool = SettingsField(title="ValidateUnrealStaticMeshName")
     optional: bool = SettingsField(title="Optional")
     validate_mesh: bool = SettingsField(title="Validate mesh names")
-    validate_collision: bool = SettingsField(title="Validate collison names")
+    validate_collision: bool = SettingsField(title="Validate collision names")
 
 
 class ValidateCycleErrorModel(BaseSettingsModel):
@@ -243,7 +288,7 @@ class ValidatePluginPathAttributesModel(BaseSettingsModel):
     and the node attribute is <b>abc_file</b>
     """
 
-    enabled: bool = True
+    enabled: bool = SettingsField(title="Enabled")
     optional: bool = SettingsField(title="Optional")
     active: bool = SettingsField(title="Active")
     attribute: list[ValidatePluginPathAttributesAttrModel] = SettingsField(
@@ -265,6 +310,9 @@ class RendererAttributesModel(BaseSettingsModel):
 
 
 class ValidateRenderSettingsModel(BaseSettingsModel):
+    enabled: bool = SettingsField(title="Enabled")
+    optional: bool = SettingsField(title="Optional")
+    active: bool = SettingsField(title="Active")
     arnold_render_attributes: list[RendererAttributesModel] = SettingsField(
         default_factory=list, title="Arnold Render Attributes")
     vray_render_attributes: list[RendererAttributesModel] = SettingsField(
@@ -299,6 +347,115 @@ class ExtractAlembicModel(BaseSettingsModel):
     families: list[str] = SettingsField(
         default_factory=list,
         title="Families")
+    autoSubd: bool = SettingsField(
+        title="Auto Subd",
+        description=(
+            "If this flag is present and the mesh has crease edges, crease "
+            "vertices or holes, the mesh (OPolyMesh) would now be written out "
+            "as an OSubD and crease info will be stored in the Alembic  file. "
+            "Otherwise, creases info won't be preserved in Alembic file unless"
+            " a custom Boolean attribute SubDivisionMesh has been added to "
+            "mesh node and its value is true."
+        )
+    )
+    eulerFilter: bool = SettingsField(
+        title="Euler Filter",
+        description="Apply Euler filter while sampling rotations."
+    )
+    renderableOnly: bool = SettingsField(
+        title="Renderable Only",
+        description="Only export renderable visible shapes."
+    )
+    stripNamespaces: bool = SettingsField(
+        title="Strip Namespaces",
+        description=(
+            "Namespaces will be stripped off of the node before being written "
+            "to Alembic."
+        )
+    )
+    uvsOnly: bool = SettingsField(
+        title="UVs Only",
+        description=(
+            "If this flag is present, only uv data for PolyMesh and SubD "
+            "shapes will be written to the Alembic file."
+        )
+    )
+    uvWrite: bool = SettingsField(
+        title="UV Write",
+        description=(
+            "Uv data for PolyMesh and SubD shapes will be written to the "
+            "Alembic file."
+        )
+    )
+    verbose: bool = SettingsField(
+        title="Verbose",
+        description="Prints the current frame that is being evaluated."
+    )
+    visibleOnly: bool = SettingsField(
+        title="Visible Only",
+        description="Only export dag objects visible during frame range."
+    )
+    wholeFrameGeo: bool = SettingsField(
+        title="Whole Frame Geo",
+        description=(
+            "Data for geometry will only be written out on whole frames."
+        )
+    )
+    worldSpace: bool = SettingsField(
+        title="World Space",
+        description="Any root nodes will be stored in world space."
+    )
+    writeColorSets: bool = SettingsField(
+        title="Write Color Sets",
+        description="Write vertex colors with the geometry."
+    )
+    writeFaceSets: bool = SettingsField(
+        title="Write Face Sets",
+        description="Write face sets with the geometry."
+    )
+    writeNormals: bool = SettingsField(
+        title="Write Normals",
+        description="Write normals with the deforming geometry."
+    )
+    writeUVSets: bool = SettingsField(
+        title="Write UV Sets",
+        description=(
+            "Write all uv sets on MFnMeshes as vector 2 indexed geometry "
+            "parameters with face varying scope."
+        )
+    )
+    writeVisibility: bool = SettingsField(
+        title="Write Visibility",
+        description=(
+            "Visibility state will be stored in the Alembic file. Otherwise "
+            "everything written out is treated as visible."
+        )
+    )
+    preRoll: bool = SettingsField(
+        title="Pre Roll",
+        description=(
+            "When enabled, the pre roll start frame is used to pre roll the "
+            "When enabled, the pre roll start frame is used to being the "
+            "evaluation of the mesh. From the pre roll start frame to the "
+            "alembic start frame, will not be written to disk. This can be "
+            "used for simulation run up."
+        )
+    )
+    preRollStartFrame: int = SettingsField(
+        title="Pre Roll Start Frame",
+        description=(
+            "The frame to start scene evaluation at.  This is used to set the "
+            "starting frame for time dependent translations and can be used to"
+            " evaluate run-up that isn't actually translated.\n"
+            "NOTE: Pre Roll needs to be enabled for this start frame "
+            "to be considered."
+        )
+    )
+    dataFormat: str = SettingsField(
+        enum_resolver=extract_alembic_data_format_enum,
+        title="Data Format",
+        description="The data format to use to write the file."
+    )
     bake_attributes: list[str] = SettingsField(
         default_factory=list, title="Bake Attributes",
         description="List of attributes that will be included in the alembic "
@@ -309,6 +466,73 @@ class ExtractAlembicModel(BaseSettingsModel):
         description="List of attribute prefixes for attributes that will be "
                     "included in the alembic export.",
     )
+    attr: str = SettingsField(
+        title="Custom Attributes",
+        placeholder="attr1;attr2",
+        description=(
+            "Attributes matching by name will be included in the Alembic "
+            "export. Attributes should be separated by semi-colon `;`"
+        )
+    )
+    attrPrefix: str = SettingsField(
+        title="Custom Attributes Prefix",
+        placeholder="prefix1;prefix2",
+        description=(
+            "Attributes starting with these prefixes will be included in the "
+            "Alembic export. Attributes should be separated by semi-colon `;`"
+        )
+    )
+    userAttr: str = SettingsField(
+        title="User Attr",
+        placeholder="attr1;attr2",
+        description=(
+            "Attributes matching by name will be included in the Alembic "
+            "export. Attributes should be separated by semi-colon `;`"
+        )
+    )
+    userAttrPrefix: str = SettingsField(
+        title="User Attr Prefix",
+        placeholder="prefix1;prefix2",
+        description=(
+            "Attributes starting with these prefixes will be included in the "
+            "Alembic export. Attributes should be separated by semi-colon `;`"
+        )
+    )
+    melPerFrameCallback: str = SettingsField(
+        title="Mel Per Frame Callback",
+        description=(
+            "When each frame (and the static frame) is evaluated the string "
+            "specified is evaluated as a Mel command."
+        )
+    )
+    melPostJobCallback: str = SettingsField(
+        title="Mel Post Job Callback",
+        description=(
+            "When the translation has finished the string specified is "
+            "evaluated as a Mel command."
+        )
+    )
+    pythonPerFrameCallback: str = SettingsField(
+        title="Python Per Frame Callback",
+        description=(
+            "When each frame (and the static frame) is evaluated the string "
+            "specified is evaluated as a python command."
+        )
+    )
+    pythonPostJobCallback: str = SettingsField(
+        title="Python Post Job Callback",
+        description=(
+            "When the translation has finished the string specified is "
+            "evaluated as a python command."
+        )
+    )
+    overrides: list[str] = SettingsField(
+        enum_resolver=extract_alembic_overrides_enum,
+        title="Exposed Overrides",
+        description=(
+            "Expose the attribute in this list to the user when publishing."
+        )
+    )
 
 
 class ExtractObjModel(BaseSettingsModel):
@@ -392,7 +616,7 @@ class ExtractGPUCacheModel(BaseSettingsModel):
         title="Optimize Animations For Motion Blur"
     )
     writeMaterials: bool = SettingsField(title="Write Materials")
-    useBaseTessellation: bool = SettingsField(title="User Base Tesselation")
+    useBaseTessellation: bool = SettingsField(title="User Based Tessellation")
 
 
 class PublishersModel(BaseSettingsModel):
@@ -668,15 +892,19 @@ class PublishersModel(BaseSettingsModel):
         default_factory=BasicValidateModel,
         title="Validate Alembic Visible Node",
     )
+    ValidateAlembicDefaultsPointcache: BasicValidateModel = SettingsField(
+        default_factory=BasicValidateModel,
+        title="Validate Alembic Defaults Pointcache"
+    )
+    ValidateAlembicDefaultsAnimation: BasicValidateModel = SettingsField(
+        default_factory=BasicValidateModel,
+        title="Validate Alembic Defaults Animation"
+    )
     ExtractProxyAlembic: ExtractProxyAlembicModel = SettingsField(
         default_factory=ExtractProxyAlembicModel,
         title="Extract Proxy Alembic",
         section="Model Extractors",
     )
-    ExtractAlembic: ExtractAlembicModel = SettingsField(
-        default_factory=ExtractAlembicModel,
-        title="Extract Alembic",
-    )
     ExtractObj: ExtractObjModel = SettingsField(
         default_factory=ExtractObjModel,
         title="Extract OBJ"
@@ -811,6 +1039,10 @@ class PublishersModel(BaseSettingsModel):
         default_factory=ExtractModelModel,
         title="Extract Model (Maya Scene)"
     )
+    ExtractAlembic: ExtractAlembicModel = SettingsField(
+        default_factory=ExtractAlembicModel,
+        title="Extract Alembic"
+    )
 
 
 DEFAULT_SUFFIX_NAMING = {
@@ -942,6 +1174,9 @@ DEFAULT_PUBLISH_SETTINGS = {
         ]
     },
     "ValidateRenderSettings": {
+        "enabled": True,
+        "active": True,
+        "optional": False,
         "arnold_render_attributes": [],
         "vray_render_attributes": [],
         "redshift_render_attributes": [],
@@ -1200,16 +1435,6 @@ DEFAULT_PUBLISH_SETTINGS = {
             "proxyAbc"
         ]
     },
-    "ExtractAlembic": {
-        "enabled": True,
-        "families": [
-            "pointcache",
-            "model",
-            "vrayproxy.alembic"
-        ],
-        "bake_attributes": [],
-        "bake_attribute_prefixes": []
-    },
     "ExtractObj": {
         "enabled": False,
         "optional": True,
@@ -1330,6 +1555,16 @@ DEFAULT_PUBLISH_SETTINGS = {
         "optional": False,
         "validate_shapes": True
     },
+    "ValidateAlembicDefaultsPointcache": {
+        "enabled": True,
+        "optional": True,
+        "active": True
+    },
+    "ValidateAlembicDefaultsAnimation": {
+        "enabled": True,
+        "optional": True,
+        "active": True
+    },
     "ExtractPlayblast": DEFAULT_PLAYBLAST_SETTING,
     "ExtractMayaSceneRaw": {
         "enabled": True,
@@ -1371,6 +1606,52 @@ DEFAULT_PUBLISH_SETTINGS = {
     "ExtractModel": {
         "enabled": True,
         "optional": True,
-        "active": True,
+        "active": True
+    },
+    "ExtractAlembic": {
+        "enabled": True,
+        "families": [
+            "pointcache",
+            "model",
+            "vrayproxy.alembic"
+        ],
+        "attr": "",
+        "attrPrefix": "",
+        "autoSubd": False,
+        "bake_attributes": [],
+        "bake_attribute_prefixes": [],
+        "dataFormat": "ogawa",
+        "eulerFilter": False,
+        "melPerFrameCallback": "",
+        "melPostJobCallback": "",
+        "overrides": [
+            "attr",
+            "attrPrefix",
+            "renderableOnly",
+            "visibleOnly",
+            "worldSpace",
+            "writeColorSets",
+            "writeFaceSets",
+            "writeNormals"
+        ],
+        "preRoll": False,
+        "preRollStartFrame": 0,
+        "pythonPerFrameCallback": "",
+        "pythonPostJobCallback": "",
+        "renderableOnly": False,
+        "stripNamespaces": True,
+        "uvsOnly": False,
+        "uvWrite": False,
+        "userAttr": "",
+        "userAttrPrefix": "",
+        "verbose": False,
+        "visibleOnly": False,
+        "wholeFrameGeo": False,
+        "worldSpace": True,
+        "writeColorSets": False,
+        "writeFaceSets": False,
+        "writeNormals": True,
+        "writeUVSets": False,
+        "writeVisibility": False
     }
 }

server_addon/nuke/package.py

@@ -1,3 +1,3 @@
 name = "nuke"
 title = "Nuke"
-version = "0.1.10"
+version = "0.1.11"

server_addon/nuke/server/settings/imageio.py

@@ -97,8 +97,23 @@ class WorkfileColorspaceSettings(BaseSettingsModel):
     working_space: str = SettingsField(
         title="Working Space"
     )
-    thumbnail_space: str = SettingsField(
-        title="Thumbnail Space"
+    monitor_lut: str = SettingsField(
+        title="Thumbnails"
+    )
+    monitor_out_lut: str = SettingsField(
+        title="Monitor Out"
+    )
+    int_8_lut: str = SettingsField(
+        title="8-bit Files"
+    )
+    int_16_lut: str = SettingsField(
+        title="16-bit Files"
+    )
+    log_lut: str = SettingsField(
+        title="Log Files"
+    )
+    float_lut: str = SettingsField(
+        title="Float Files"
     )
 
 
@@ -120,6 +135,9 @@ class ViewProcessModel(BaseSettingsModel):
     viewerProcess: str = SettingsField(
         title="Viewer Process Name"
     )
+    output_transform: str = SettingsField(
+        title="Output Transform"
+    )
 
 
 class ImageIOConfigModel(BaseSettingsModel):
@@ -214,16 +232,23 @@ class ImageIOSettings(BaseSettingsModel):
 
 DEFAULT_IMAGEIO_SETTINGS = {
     "viewer": {
-        "viewerProcess": "sRGB (default)"
+        "viewerProcess": "ACES/sRGB",
+        "output_transform": "ACES/sRGB"
     },
     "baking": {
-        "viewerProcess": "rec709 (default)"
+        "viewerProcess": "ACES/Rec.709",
+        "output_transform": "ACES/Rec.709"
     },
     "workfile": {
         "color_management": "OCIO",
-        "native_ocio_config": "nuke-default",
-        "working_space": "scene_linear",
-        "thumbnail_space": "sRGB (default)",
+        "native_ocio_config": "aces_1.2",
+        "working_space": "role_scene_linear",
+        "monitor_lut": "ACES/sRGB",
+        "monitor_out_lut": "ACES/sRGB",
+        "int_8_lut": "role_matte_paint",
+        "int_16_lut": "role_texture_paint",
+        "log_lut": "role_compositing_log",
+        "float_lut": "role_scene_linear"
     },
     "nodes": {
         "required_nodes": [