rcg-pipeline/rcg_pipeline/utils/collection_tools.py

92 lines
3 KiB
Python

# ***** BEGIN GPL LICENSE BLOCK *****
#
# Copyright (C) 2024 Ilia Kurochkin <brothermechanic@yandex.com>
#
# Created by Ilia Kurochkin (brothermechanic)
# contact: brothermechanic@yandex.com
#
# This is free software;
# you can redistribute it and/or modify
# it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <https://www.gnu.org/licenses/>.
#
# ***** END GPL LICENSE BLOCK *****
#
# coding: utf-8
'''
DESCRIPTION.
Various collection tools.
'''
__version__ = '0.1'
import bpy
from collections import defaultdict
def copy_objects(from_col, to_col, linked, double_lut):
'''Function copying objects from collection to collection.'''
for obj in from_col.objects:
double = obj.copy()
if not linked and obj.data:
double.data = double.data.copy()
to_col.objects.link(double)
double_lut[obj] = double
return True
def copy_collections_recursive(collection, suffix='copy', linked=False):
'''Function recursive copying collection.'''
double_lut = defaultdict(lambda: None)
parent = [p for p in (bpy.data.collections[:] + [bpy.context.scene.collection])
if collection.name in p.children.keys()][0]
def _copy(parent, collection, suffix, linked=False):
'''Function copying collection.'''
clone_collection = bpy.data.collections.new(
'_'.join((collection.name, suffix))
)
copy_objects(collection, clone_collection, linked, double_lut)
for _collection in collection.children:
_copy(clone_collection, _collection, suffix, linked)
parent.children.link(clone_collection)
_copy(parent, collection, suffix, linked)
for obj, double in tuple(double_lut.items()):
parent = double_lut[obj.parent]
if parent:
double.parent = parent
return '_'.join((collection.name, suffix))
def unlink_from_collections(obj):
''' Unlinking object from all collections. '''
for col in bpy.data.collections:
if obj.name in col.objects:
col.objects.unlink(obj)
return obj
def remove_collections_with_objects(collection=None):
'''Removes all collection (or given) with objects from scene '''
if collection:
for obj in collection.objects:
bpy.data.objects.remove(obj, do_unlink=True)
bpy.data.collections.remove(collection)
else:
for col in bpy.data.collections:
for obj in col.objects:
bpy.data.objects.remove(obj, do_unlink=True)
bpy.data.collections.remove(col)
return True