Fix T54504: Cycles wrong backwards compatibility with linked libraries.
The code assumed all datablocks were read from .blend files saved with the same version. This restructures the Cycles versioning code to take into account libraries.
This commit is contained in:
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d8293fd6be
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8a97b85555
@ -22,89 +22,39 @@ import math
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from bpy.app.handlers import persistent
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def check_is_new_shading_ntree(node_tree):
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for node in node_tree.nodes:
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# If material has any node with ONLY new shading system
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# compatibility then it's considered a Cycles material
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# and versioning code would need to perform on it.
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#
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# We can not check for whether NEW_SHADING in compatibility
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# because some nodes could have compatibility with both old
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# and new shading system and they can't be used for any
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# decision here.
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if node.shading_compatibility == {'NEW_SHADING'}:
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return True
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# If node is only compatible with old shading system
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# then material can not be Cycles material and we
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# can stopiterating nodes now.
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if node.shading_compatibility == {'OLD_SHADING'}:
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return False
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return False
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def check_is_new_shading_material(material):
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if not material.node_tree:
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return False
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return check_is_new_shading_ntree(material.node_tree)
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def check_is_new_shading_world(world):
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if not world.node_tree:
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return False
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return check_is_new_shading_ntree(world.node_tree)
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def check_is_new_shading_lamp(lamp):
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if not lamp.node_tree:
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return False
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return check_is_new_shading_ntree(lamp.node_tree)
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def foreach_notree_node(nodetree, callback, traversed):
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if nodetree in traversed:
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return
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traversed.add(nodetree)
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def foreach_cycles_nodetree_group(nodetree, traversed):
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for node in nodetree.nodes:
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callback(node)
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if node.bl_idname == 'ShaderNodeGroup':
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foreach_notree_node(node.node_tree, callback, traversed)
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group = node.node_tree
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if group and group not in traversed:
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traversed.add(group)
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yield group, group.library
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yield from foreach_cycles_nodetree_group(group, traversed)
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def foreach_cycles_node(callback):
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def foreach_cycles_nodetree():
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traversed = set()
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for material in bpy.data.materials:
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if check_is_new_shading_material(material):
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foreach_notree_node(
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material.node_tree,
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callback,
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traversed,
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)
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nodetree = material.node_tree
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if nodetree:
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yield nodetree, material.library
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yield from foreach_cycles_nodetree_group(nodetree, traversed)
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for world in bpy.data.worlds:
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if check_is_new_shading_world(world):
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foreach_notree_node(
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world.node_tree,
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callback,
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traversed,
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)
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nodetree = world.node_tree
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if nodetree:
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yield nodetree, world.library
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foreach_cycles_nodetree_group(nodetree, traversed)
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for lamp in bpy.data.lamps:
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if check_is_new_shading_world(lamp):
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foreach_notree_node(
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lamp.node_tree,
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callback,
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traversed,
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)
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nodetree = lamp.node_tree
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if nodetree:
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yield nodetree, lamp.library
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foreach_cycles_nodetree_group(nodetree, traversed)
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def displacement_node_insert(material, nodetree, traversed):
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if nodetree in traversed:
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return
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traversed.add(nodetree)
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for node in nodetree.nodes:
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if node.bl_idname == 'ShaderNodeGroup':
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displacement_node_insert(material, node.node_tree, traversed)
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def displacement_node_insert(nodetree):
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# Gather links to replace
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displacement_links = []
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for link in nodetree.links:
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@ -134,12 +84,6 @@ def displacement_node_insert(material, nodetree, traversed):
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nodetree.links.new(node.outputs['Displacement'], to_socket)
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def displacement_nodes_insert():
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traversed = set()
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for material in bpy.data.materials:
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if check_is_new_shading_material(material):
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displacement_node_insert(material, material.node_tree, traversed)
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def displacement_principled_nodes(node):
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if node.bl_idname == 'ShaderNodeDisplacement':
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@ -150,11 +94,7 @@ def displacement_principled_nodes(node):
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node.subsurface_method = 'BURLEY'
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def square_roughness_node_insert(material, nodetree, traversed):
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if nodetree in traversed:
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return
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traversed.add(nodetree)
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def square_roughness_node_insert(nodetree):
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roughness_node_types = {
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'ShaderNodeBsdfAnisotropic',
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'ShaderNodeBsdfGlass',
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@ -163,9 +103,7 @@ def square_roughness_node_insert(material, nodetree, traversed):
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# Update default values
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for node in nodetree.nodes:
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if node.bl_idname == 'ShaderNodeGroup':
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square_roughness_node_insert(material, node.node_tree, traversed)
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elif node.bl_idname in roughness_node_types:
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if node.bl_idname in roughness_node_types:
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roughness_input = node.inputs['Roughness']
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roughness_input.default_value = math.sqrt(max(roughness_input.default_value, 0.0))
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@ -195,13 +133,6 @@ def square_roughness_node_insert(material, nodetree, traversed):
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nodetree.links.new(node.outputs['Value'], to_socket)
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def square_roughness_nodes_insert():
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traversed = set()
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for material in bpy.data.materials:
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if check_is_new_shading_material(material):
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square_roughness_node_insert(material, material.node_tree, traversed)
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def mapping_node_order_flip(node):
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"""
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Flip euler order of mapping shader node
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@ -283,18 +214,12 @@ def custom_bake_remap(scene):
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scene.render.bake.use_pass_indirect = False
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def ambient_occlusion_node_relink(material, nodetree, traversed):
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if nodetree in traversed:
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return
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traversed.add(nodetree)
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def ambient_occlusion_node_relink(nodetree):
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for node in nodetree.nodes:
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if node.bl_idname == 'ShaderNodeAmbientOcclusion':
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node.samples = 1
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node.only_local = False
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node.inputs['Distance'].default_value = 0.0
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elif node.bl_idname == 'ShaderNodeGroup':
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ambient_occlusion_node_relink(material, node.node_tree, traversed)
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# Gather links to replace
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ao_links = []
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@ -311,13 +236,6 @@ def ambient_occlusion_node_relink(material, nodetree, traversed):
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nodetree.links.new(from_node.outputs['Color'], to_socket)
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def ambient_occlusion_nodes_relink():
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traversed = set()
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for material in bpy.data.materials:
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if check_is_new_shading_material(material):
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ambient_occlusion_node_relink(material, material.node_tree, traversed)
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@persistent
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def do_versions(self):
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if bpy.context.user_preferences.version <= (2, 78, 1):
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@ -343,9 +261,25 @@ def do_versions(self):
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if not bpy.data.is_saved:
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return
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# Clamp Direct/Indirect separation in 270
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if bpy.data.version <= (2, 70, 0):
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# Map of versions used by libraries.
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library_versions = {}
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library_versions[bpy.data.version] = [None]
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for library in bpy.data.libraries:
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library_versions.setdefault(library.version, []).append(library)
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# Do versioning per library, since they might have different versions.
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max_need_versioning = (2, 79, 6)
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for version, libraries in library_versions.items():
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if version > max_need_versioning:
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continue
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# Scenes
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for scene in bpy.data.scenes:
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if scene.library not in libraries:
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continue
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# Clamp Direct/Indirect separation in 270
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if version <= (2, 70, 0):
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cscene = scene.cycles
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sample_clamp = cscene.get("sample_clamp", False)
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if (
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@ -358,15 +292,13 @@ def do_versions(self):
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cscene.sample_clamp_indirect = sample_clamp
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# Change of Volume Bounces in 271
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if bpy.data.version <= (2, 71, 0):
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for scene in bpy.data.scenes:
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if version <= (2, 71, 0):
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cscene = scene.cycles
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if not cscene.is_property_set("volume_bounces"):
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cscene.volume_bounces = 1
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# Caustics Reflective/Refractive separation in 272
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if bpy.data.version <= (2, 72, 0):
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for scene in bpy.data.scenes:
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if version <= (2, 72, 0):
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cscene = scene.cycles
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if (
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cscene.get("no_caustics", False) and
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@ -376,21 +308,12 @@ def do_versions(self):
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cscene.caustics_reflective = False
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cscene.caustics_refractive = False
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# Euler order was ZYX in previous versions.
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if bpy.data.version <= (2, 73, 4):
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foreach_cycles_node(mapping_node_order_flip)
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if bpy.data.version <= (2, 76, 5):
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foreach_cycles_node(vector_curve_node_remap)
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# Baking types changed
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if bpy.data.version <= (2, 76, 6):
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for scene in bpy.data.scenes:
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if version <= (2, 76, 6):
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custom_bake_remap(scene)
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# Several default changes for 2.77
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if bpy.data.version <= (2, 76, 8):
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for scene in bpy.data.scenes:
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if version <= (2, 76, 8):
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cscene = scene.cycles
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# Samples
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@ -409,34 +332,7 @@ def do_versions(self):
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if not cscene.is_property_set("tile_order"):
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cscene.tile_order = 'CENTER'
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for lamp in bpy.data.lamps:
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clamp = lamp.cycles
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# MIS
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if not clamp.is_property_set("use_multiple_importance_sampling"):
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clamp.use_multiple_importance_sampling = False
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for mat in bpy.data.materials:
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cmat = mat.cycles
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# Volume Sampling
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if not cmat.is_property_set("volume_sampling"):
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cmat.volume_sampling = 'DISTANCE'
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if bpy.data.version <= (2, 76, 9):
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for world in bpy.data.worlds:
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cworld = world.cycles
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# World MIS Samples
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if not cworld.is_property_set("samples"):
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cworld.samples = 4
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# World MIS Resolution
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if not cworld.is_property_set("sample_map_resolution"):
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cworld.sample_map_resolution = 256
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if bpy.data.version <= (2, 76, 10):
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for scene in bpy.data.scenes:
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if version <= (2, 76, 10):
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cscene = scene.cycles
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if cscene.is_property_set("filter_type"):
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if not cscene.is_property_set("pixel_filter_type"):
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@ -444,14 +340,12 @@ def do_versions(self):
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if cscene.filter_type == 'BLACKMAN_HARRIS':
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cscene.filter_type = 'GAUSSIAN'
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if bpy.data.version <= (2, 78, 2):
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for scene in bpy.data.scenes:
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if version <= (2, 78, 2):
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cscene = scene.cycles
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if not cscene.is_property_set("light_sampling_threshold"):
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cscene.light_sampling_threshold = 0.0
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if bpy.data.version <= (2, 79, 0):
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for scene in bpy.data.scenes:
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if version <= (2, 79, 0):
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cscene = scene.cycles
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# Default changes
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if not cscene.is_property_set("aa_samples"):
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@ -463,23 +357,35 @@ def do_versions(self):
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if not cscene.is_property_set("sample_clamp_indirect"):
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cscene.sample_clamp_indirect = 0.0
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if bpy.data.version <= (2, 79, 1):
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displacement_nodes_insert()
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# Lamps
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for lamp in bpy.data.lamps:
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if lamp.library not in libraries:
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continue
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if bpy.data.version <= (2, 79, 2):
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for mat in bpy.data.materials:
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cmat = mat.cycles
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if not cmat.is_property_set("displacement_method"):
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cmat.displacement_method = 'BUMP'
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if version <= (2, 76, 5):
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clamp = lamp.cycles
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foreach_cycles_node(displacement_principled_nodes)
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# MIS
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if not clamp.is_property_set("use_multiple_importance_sampling"):
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clamp.use_multiple_importance_sampling = False
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if bpy.data.version <= (2, 79, 3):
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# Switch to squared roughness convention
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square_roughness_nodes_insert()
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if bpy.data.version <= (2, 79, 4):
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# Worlds
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for world in bpy.data.worlds:
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if world.library not in libraries:
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continue
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if version <= (2, 76, 9):
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cworld = world.cycles
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# World MIS Samples
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if not cworld.is_property_set("samples"):
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cworld.samples = 4
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# World MIS Resolution
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if not cworld.is_property_set("sample_map_resolution"):
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cworld.sample_map_resolution = 256
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if version <= (2, 79, 4):
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cworld = world.cycles
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# World MIS
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if not cworld.is_property_set("sampling_method"):
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@ -488,11 +394,53 @@ def do_versions(self):
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else:
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cworld.sampling_method = 'NONE'
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ambient_occlusion_nodes_relink()
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if bpy.data.version <= (2, 79, 6):
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# Change default to bump again.
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# Materials
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for mat in bpy.data.materials:
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if mat.library not in libraries:
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continue
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if version <= (2, 76, 5):
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cmat = mat.cycles
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# Volume Sampling
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if not cmat.is_property_set("volume_sampling"):
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cmat.volume_sampling = 'DISTANCE'
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if version <= (2, 79, 2):
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cmat = mat.cycles
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if not cmat.is_property_set("displacement_method"):
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cmat.displacement_method = 'BUMP'
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# Change default to bump again.
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if version <= (2, 79, 6):
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cmat = mat.cycles
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if not cmat.is_property_set("displacement_method"):
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cmat.displacement_method = 'DISPLACEMENT'
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# Nodes
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for nodetree, library in foreach_cycles_nodetree():
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if library not in libraries:
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continue
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# Euler order was ZYX in previous versions.
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if version <= (2, 73, 4):
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for node in nodetree.nodes:
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mapping_node_order_flip(node)
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if version <= (2, 76, 5):
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for node in nodetree.nodes:
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vector_curve_node_remap(node)
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if version <= (2, 79, 1):
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displacement_node_insert(nodetree)
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if version <= (2, 79, 2):
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for node in nodetree.nodes:
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displacement_principled_nodes(node)
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if version <= (2, 79, 3):
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# Switch to squared roughness convention
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square_roughness_node_insert(nodetree)
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if version <= (2, 79, 4):
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ambient_occlusion_node_relink(nodetree)
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@ -762,6 +762,14 @@ static IDProperty *rna_IDPropertyWrapPtr_idprops(PointerRNA *ptr, bool UNUSED(cr
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return ptr->data;
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}
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static void rna_Library_version_get(PointerRNA *ptr, int *value)
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{
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Library *lib = (Library *)ptr->data;
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value[0] = lib->versionfile / 100;
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value[1] = lib->versionfile % 100;
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value[2] = lib->subversionfile;
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}
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#else
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static void rna_def_ID_properties(BlenderRNA *brna)
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@ -1110,6 +1118,12 @@ static void rna_def_library(BlenderRNA *brna)
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RNA_def_property_pointer_sdna(prop, NULL, "packedfile");
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RNA_def_property_ui_text(prop, "Packed File", "");
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prop = RNA_def_int_vector(srna, "version", 3, NULL, 0, INT_MAX,
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"Version", "Version of Blender the library .blend was saved with", 0, INT_MAX);
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RNA_def_property_int_funcs(prop, "rna_Library_version_get", NULL, NULL);
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RNA_def_property_clear_flag(prop, PROP_EDITABLE);
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RNA_def_property_flag(prop, PROP_THICK_WRAP);
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func = RNA_def_function(srna, "reload", "WM_lib_reload");
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RNA_def_function_flag(func, FUNC_USE_REPORTS | FUNC_USE_CONTEXT);
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RNA_def_function_ui_description(func, "Reload this library and all its linked data-blocks");
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