mirror of
https://github.com/ynput/ayon-core.git
synced 2025-12-25 05:14:40 +01:00
293 lines
9.1 KiB
Python
293 lines
9.1 KiB
Python
"""Load a model asset in Blender."""
|
|
|
|
import logging
|
|
from pathlib import Path
|
|
from pprint import pformat
|
|
from typing import Dict, List, Optional
|
|
|
|
from avalon import api, blender
|
|
import bpy
|
|
import pype.hosts.blender.plugin
|
|
|
|
logger = logging.getLogger("pype").getChild("blender").getChild("load_model")
|
|
|
|
|
|
class BlendModelLoader(pype.hosts.blender.plugin.AssetLoader):
|
|
"""Load models from a .blend file.
|
|
|
|
Because they come from a .blend file we can simply link the collection that
|
|
contains the model. There is no further need to 'containerise' it.
|
|
|
|
Warning:
|
|
Loading the same asset more then once is not properly supported at the
|
|
moment.
|
|
"""
|
|
|
|
families = ["model"]
|
|
representations = ["blend"]
|
|
|
|
label = "Link Model"
|
|
icon = "code-fork"
|
|
color = "orange"
|
|
|
|
def _remove(self, objects, lib_container):
|
|
|
|
for obj in objects:
|
|
|
|
bpy.data.meshes.remove(obj.data)
|
|
|
|
bpy.data.collections.remove(bpy.data.collections[lib_container])
|
|
|
|
def _process(self, libpath, lib_container, container_name):
|
|
|
|
relative = bpy.context.preferences.filepaths.use_relative_paths
|
|
with bpy.data.libraries.load(
|
|
libpath, link=True, relative=relative
|
|
) as (_, data_to):
|
|
data_to.collections = [lib_container]
|
|
|
|
scene = bpy.context.scene
|
|
|
|
scene.collection.children.link(bpy.data.collections[lib_container])
|
|
|
|
model_container = scene.collection.children[lib_container].make_local()
|
|
|
|
objects_list = []
|
|
|
|
for obj in model_container.objects:
|
|
|
|
obj = obj.make_local()
|
|
|
|
obj.data.make_local()
|
|
|
|
for material_slot in obj.material_slots:
|
|
|
|
material_slot.material.make_local()
|
|
|
|
if not obj.get(blender.pipeline.AVALON_PROPERTY):
|
|
|
|
obj[blender.pipeline.AVALON_PROPERTY] = dict()
|
|
|
|
avalon_info = obj[blender.pipeline.AVALON_PROPERTY]
|
|
avalon_info.update({"container_name": container_name})
|
|
|
|
objects_list.append(obj)
|
|
|
|
model_container.pop(blender.pipeline.AVALON_PROPERTY)
|
|
|
|
bpy.ops.object.select_all(action='DESELECT')
|
|
|
|
return objects_list
|
|
|
|
def process_asset(
|
|
self, context: dict, name: str, namespace: Optional[str] = None,
|
|
options: Optional[Dict] = None
|
|
) -> Optional[List]:
|
|
"""
|
|
Arguments:
|
|
name: Use pre-defined name
|
|
namespace: Use pre-defined namespace
|
|
context: Full parenthood of representation to load
|
|
options: Additional settings dictionary
|
|
"""
|
|
|
|
libpath = self.fname
|
|
asset = context["asset"]["name"]
|
|
subset = context["subset"]["name"]
|
|
lib_container = pype.hosts.blender.plugin.asset_name(asset, subset)
|
|
container_name = pype.hosts.blender.plugin.asset_name(
|
|
asset, subset, namespace
|
|
)
|
|
|
|
collection = bpy.data.collections.new(lib_container)
|
|
collection.name = container_name
|
|
blender.pipeline.containerise_existing(
|
|
collection,
|
|
name,
|
|
namespace,
|
|
context,
|
|
self.__class__.__name__,
|
|
)
|
|
|
|
container_metadata = collection.get(
|
|
blender.pipeline.AVALON_PROPERTY)
|
|
|
|
container_metadata["libpath"] = libpath
|
|
container_metadata["lib_container"] = lib_container
|
|
|
|
objects_list = self._process(
|
|
libpath, lib_container, container_name)
|
|
|
|
# Save the list of objects in the metadata container
|
|
container_metadata["objects"] = objects_list
|
|
|
|
nodes = list(collection.objects)
|
|
nodes.append(collection)
|
|
self[:] = nodes
|
|
return nodes
|
|
|
|
def update(self, container: Dict, representation: Dict):
|
|
"""Update the loaded asset.
|
|
|
|
This will remove all objects of the current collection, load the new
|
|
ones and add them to the collection.
|
|
If the objects of the collection are used in another collection they
|
|
will not be removed, only unlinked. Normally this should not be the
|
|
case though.
|
|
|
|
Warning:
|
|
No nested collections are supported at the moment!
|
|
"""
|
|
collection = bpy.data.collections.get(
|
|
container["objectName"]
|
|
)
|
|
libpath = Path(api.get_representation_path(representation))
|
|
extension = libpath.suffix.lower()
|
|
|
|
logger.debug(
|
|
"Container: %s\nRepresentation: %s",
|
|
pformat(container, indent=2),
|
|
pformat(representation, indent=2),
|
|
)
|
|
|
|
assert collection, (
|
|
f"The asset is not loaded: {container['objectName']}"
|
|
)
|
|
assert not (collection.children), (
|
|
"Nested collections are not supported."
|
|
)
|
|
assert libpath, (
|
|
"No existing library file found for {container['objectName']}"
|
|
)
|
|
assert libpath.is_file(), (
|
|
f"The file doesn't exist: {libpath}"
|
|
)
|
|
assert extension in pype.hosts.blender.plugin.VALID_EXTENSIONS, (
|
|
f"Unsupported file: {libpath}"
|
|
)
|
|
|
|
collection_metadata = collection.get(
|
|
blender.pipeline.AVALON_PROPERTY)
|
|
collection_libpath = collection_metadata["libpath"]
|
|
objects = collection_metadata["objects"]
|
|
lib_container = collection_metadata["lib_container"]
|
|
|
|
normalized_collection_libpath = (
|
|
str(Path(bpy.path.abspath(collection_libpath)).resolve())
|
|
)
|
|
normalized_libpath = (
|
|
str(Path(bpy.path.abspath(str(libpath))).resolve())
|
|
)
|
|
logger.debug(
|
|
"normalized_collection_libpath:\n %s\nnormalized_libpath:\n %s",
|
|
normalized_collection_libpath,
|
|
normalized_libpath,
|
|
)
|
|
if normalized_collection_libpath == normalized_libpath:
|
|
logger.info("Library already loaded, not updating...")
|
|
return
|
|
|
|
self._remove(objects, lib_container)
|
|
|
|
objects_list = self._process(
|
|
str(libpath), lib_container, collection.name)
|
|
|
|
# Save the list of objects in the metadata container
|
|
collection_metadata["objects"] = objects_list
|
|
collection_metadata["libpath"] = str(libpath)
|
|
collection_metadata["representation"] = str(representation["_id"])
|
|
|
|
def remove(self, container: Dict) -> bool:
|
|
"""Remove an existing container from a Blender scene.
|
|
|
|
Arguments:
|
|
container (avalon-core:container-1.0): Container to remove,
|
|
from `host.ls()`.
|
|
|
|
Returns:
|
|
bool: Whether the container was deleted.
|
|
|
|
Warning:
|
|
No nested collections are supported at the moment!
|
|
"""
|
|
collection = bpy.data.collections.get(
|
|
container["objectName"]
|
|
)
|
|
if not collection:
|
|
return False
|
|
assert not (collection.children), (
|
|
"Nested collections are not supported."
|
|
)
|
|
|
|
collection_metadata = collection.get(
|
|
blender.pipeline.AVALON_PROPERTY)
|
|
objects = collection_metadata["objects"]
|
|
lib_container = collection_metadata["lib_container"]
|
|
|
|
self._remove(objects, lib_container)
|
|
|
|
bpy.data.collections.remove(collection)
|
|
|
|
return True
|
|
|
|
|
|
class CacheModelLoader(pype.hosts.blender.plugin.AssetLoader):
|
|
"""Load cache models.
|
|
|
|
Stores the imported asset in a collection named after the asset.
|
|
|
|
Note:
|
|
At least for now it only supports Alembic files.
|
|
"""
|
|
|
|
families = ["model"]
|
|
representations = ["abc"]
|
|
|
|
label = "Link Model"
|
|
icon = "code-fork"
|
|
color = "orange"
|
|
|
|
def process_asset(
|
|
self, context: dict, name: str, namespace: Optional[str] = None,
|
|
options: Optional[Dict] = None
|
|
) -> Optional[List]:
|
|
"""
|
|
Arguments:
|
|
name: Use pre-defined name
|
|
namespace: Use pre-defined namespace
|
|
context: Full parenthood of representation to load
|
|
options: Additional settings dictionary
|
|
"""
|
|
raise NotImplementedError(
|
|
"Loading of Alembic files is not yet implemented.")
|
|
# TODO (jasper): implement Alembic import.
|
|
|
|
libpath = self.fname
|
|
asset = context["asset"]["name"]
|
|
subset = context["subset"]["name"]
|
|
# TODO (jasper): evaluate use of namespace which is 'alien' to Blender.
|
|
lib_container = container_name = (
|
|
pype.hosts.blender.plugin.asset_name(asset, subset, namespace)
|
|
)
|
|
relative = bpy.context.preferences.filepaths.use_relative_paths
|
|
|
|
with bpy.data.libraries.load(
|
|
libpath, link=True, relative=relative
|
|
) as (data_from, data_to):
|
|
data_to.collections = [lib_container]
|
|
|
|
scene = bpy.context.scene
|
|
instance_empty = bpy.data.objects.new(
|
|
container_name, None
|
|
)
|
|
scene.collection.objects.link(instance_empty)
|
|
instance_empty.instance_type = 'COLLECTION'
|
|
collection = bpy.data.collections[lib_container]
|
|
collection.name = container_name
|
|
instance_empty.instance_collection = collection
|
|
|
|
nodes = list(collection.objects)
|
|
nodes.append(collection)
|
|
nodes.append(instance_empty)
|
|
self[:] = nodes
|
|
return nodes
|