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# SPDX-FileCopyrightText: 2019-2022 Blender Foundation
#
# SPDX-License-Identifier: GPL-2.0-or-later
import bpy
from typing import TYPE_CHECKING
from bpy.types import LayerCollection, Collection, Object
from .misc import ArmatureObject
from .naming import strip_org
from mathutils import Matrix
if TYPE_CHECKING:
from ..generate import Generator
from ..base_rig import BaseRig
# noinspection SpellCheckingInspection
def create_object_data(obj_type, name):
if obj_type == 'EMPTY':
return None
if obj_type == 'MESH':
return bpy.data.meshes.new(name)
if obj_type in ('CURVE', 'SURFACE', 'FONT'):
return bpy.data.curves.new(name, obj_type)
if obj_type == 'META':
return bpy.data.metaballs.new(name)
if obj_type == 'CURVES':
return bpy.data.hair_curves.new(name)
if obj_type == 'POINTCLOUD':
return bpy.data.pointclouds.new(name)
if obj_type == 'VOLUME':
return bpy.data.volumes.new(name)
if obj_type == 'GREASEPENCIL':
return bpy.data.grease_pencils.new(name)
if obj_type == 'ARMATURE':
return bpy.data.armatures.new(name)
if obj_type == 'LATTICE':
return bpy.data.lattices.new(name)
raise ValueError(f"Invalid object type {obj_type}")
class ArtifactManager:
generator: 'Generator'
collection: Collection | None
layer_collection: LayerCollection | None
used_artifacts: list[Object]
temp_artifacts: list[Object]
artifact_reuse_table: dict[tuple[str, ...], Object]
def __init__(self, generator: 'Generator'):
self.generator = generator
self.collection = None
self.layer_collection = None
self.used_artifacts = []
self.temp_artifacts = []
self.artifact_reuse_table = {}
def _make_name(self, owner: 'BaseRig', name: str):
return self.generator.obj.name + ":" + strip_org(owner.base_bone) + ":" + name
def create_new(self, owner: 'BaseRig', obj_type: str, name: str):
"""
Creates an artifact object of the specified type and name. If it already exists, all
references are updated to point to the new instance, and the existing one is deleted.
Parameters:
owner: rig component that requests the object.
obj_type: type of the object to create.
name: unique name of the object within the rig component.
Returns:
Object that was created.
"""
return self.find_or_create(owner, obj_type, name, recreate=True)[1]
def find_or_create(self, owner: 'BaseRig', obj_type: str, name: str, *, recreate=False):
"""
Creates or reuses an artifact object of the specified type.
Parameters:
owner: rig component that requests the object.
obj_type: type of the object to create.
name: unique name of the object within the rig component.
recreate: instructs that the object should be re-created from scratch even if it exists.
Returns:
(bool, Object) tuple, with the boolean specifying if the object already existed.
"""
obj_name = self._make_name(owner, name)
key = (owner.base_bone, name)
obj = self.artifact_reuse_table.get(key)
# If the existing object has incorrect type, delete it
if obj and obj.type != obj_type:
if obj in self.used_artifacts:
owner.raise_error(f"duplicate reuse of artifact object {obj.name}")
print(f"RIGIFY: incompatible artifact object {obj.name} type: {obj.type} instead of {obj_type}")
del self.artifact_reuse_table[key]
bpy.data.objects.remove(obj)
obj = None
# Reuse the existing object
if obj:
if obj in self.used_artifacts:
owner.raise_error(f"duplicate reuse of artifact object {obj.name}")
if recreate:
# Forcefully re-create and replace the existing object
obj.name += '-OLD'
if data := obj.data:
data.name += '-OLD'
new_obj = bpy.data.objects.new(obj_name, create_object_data(obj_type, obj_name))
obj.user_remap(new_obj)
self.artifact_reuse_table[key] = new_obj
bpy.data.objects.remove(obj)
obj = new_obj
# Ensure the existing object is visible
obj.hide_viewport = False
obj.hide_set(False, view_layer=self.generator.view_layer)
if not obj.visible_get(view_layer=self.generator.view_layer):
owner.raise_error(f"could not un-hide existing artifact object {obj.name}")
# Try renaming the existing object
obj.name = obj_name
if data := obj.data:
data.name = obj_name
found = True
# Create an object from scratch
else:
obj = bpy.data.objects.new(obj_name, create_object_data(obj_type, obj_name))
self.generator.collection.objects.link(obj)
self.artifact_reuse_table[key] = obj
found = False
self.used_artifacts.append(obj)
obj.rigify_owner_rig = self.generator.obj
obj["rigify_artifact_id"] = key
obj.parent = self.generator.obj
obj.parent_type = 'OBJECT'
obj.matrix_parent_inverse = Matrix.Identity(4)
obj.matrix_basis = Matrix.Identity(4)
return found, obj
def new_temporary(self, owner: 'BaseRig', obj_type: str, name="temp"):
"""
Creates a new temporary object of the specified type.
The object will be removed after generation finishes.
"""
obj_name = "TEMP:" + self._make_name(owner, name)
obj = bpy.data.objects.new(obj_name, create_object_data(obj_type, obj_name))
obj.rigify_owner_rig = self.generator.obj
obj["rigify_artifact_id"] = 'temporary'
self.generator.collection.objects.link(obj)
self.temp_artifacts.append(obj)
return obj
def remove_temporary(self, obj):
"""
Immediately removes a temporary object previously created using new_temporary.
"""
self.temp_artifacts.remove(obj)
bpy.data.objects.remove(obj)
def generate_init_existing(self, armature: ArmatureObject):
for obj in bpy.data.objects:
if obj.rigify_owner_rig != armature:
continue
aid = obj["rigify_artifact_id"]
if isinstance(aid, list) and all(isinstance(x, str) for x in aid):
self.artifact_reuse_table[tuple(aid)] = obj
else:
print(f"RIGIFY: removing orphan artifact {obj.name}")
bpy.data.objects.remove(obj)
def generate_cleanup(self):
for obj in self.temp_artifacts:
bpy.data.objects.remove(obj)
self.temp_artifacts = []
for key, obj in self.artifact_reuse_table.items():
if obj in self.used_artifacts:
obj.hide_viewport = True
obj.hide_render = True
else:
del self.artifact_reuse_table[key]
bpy.data.objects.remove(obj)
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