Merge pull request #3140 from BigRoy/houdini_load_alembic_as_archive

Houdini: Add loader for alembic through Alembic Archive node

openpype/hosts/houdini/plugins/load/load_alembic_archive.py

@@ -0,0 +1,75 @@
+import os
+from openpype.pipeline import (
+    load,
+    get_representation_path,
+)
+from openpype.hosts.houdini.api import pipeline
+
+
+class AbcArchiveLoader(load.LoaderPlugin):
+    """Load Alembic as full geometry network hierarchy """
+
+    families = ["model", "animation", "pointcache", "gpuCache"]
+    label = "Load Alembic as Archive"
+    representations = ["abc"]
+    order = -5
+    icon = "code-fork"
+    color = "orange"
+
+    def load(self, context, name=None, namespace=None, data=None):
+
+        import hou
+
+        # Format file name, Houdini only wants forward slashes
+        file_path = os.path.normpath(self.fname)
+        file_path = file_path.replace("\\", "/")
+
+        # Get the root node
+        obj = hou.node("/obj")
+
+        # Define node name
+        namespace = namespace if namespace else context["asset"]["name"]
+        node_name = "{}_{}".format(namespace, name) if namespace else name
+
+        # Create an Alembic archive node
+        node = obj.createNode("alembicarchive", node_name=node_name)
+        node.moveToGoodPosition()
+
+        # TODO: add FPS of project / asset
+        node.setParms({"fileName": file_path,
+                       "channelRef": True})
+
+        # Apply some magic
+        node.parm("buildHierarchy").pressButton()
+        node.moveToGoodPosition()
+
+        nodes = [node]
+
+        self[:] = nodes
+
+        return pipeline.containerise(node_name,
+                                     namespace,
+                                     nodes,
+                                     context,
+                                     self.__class__.__name__,
+                                     suffix="")
+
+    def update(self, container, representation):
+
+        node = container["node"]
+
+        # Update the file path
+        file_path = get_representation_path(representation)
+        file_path = file_path.replace("\\", "/")
+
+        # Update attributes
+        node.setParms({"fileName": file_path,
+                       "representation": str(representation["_id"])})
+
+        # Rebuild
+        node.parm("buildHierarchy").pressButton()
+
+    def remove(self, container):
+
+        node = container["node"]
+        node.destroy()