Hey everyone,
I’m trying to update an add-on made by Przemysław Bągard and I’ve already update some of the code, but I’m getting an error when I try to use the add-on which I don’t know how to fix.
Traceback (most recent call last):
File "/home/lucas/Desktop/Prêt-à-Template/01_3d/maternity_09.blend/ApplyModifierForObjectWithShapeKeys.py", line 89, in execute
AttributeError: bpy_struct: attribute "objects" from "ViewLayer" is read-only
location: <unknown location>:-1
Any help, please?
Here is what I got so far.
bl_info = {
"name": "Apply modifier for object with shape keys",
"author": "Przemysław Bągard",
"blender": (2,80,0),
"version": (0,1,1),
"location": "Context menu",
"description": "Apply modifier and remove from the stack for object with shape keys (Pushing 'Apply' button in 'Object modifiers' tab result in an error 'Modifier cannot be applied to a mesh with shape keys').",
"category": "Object Tools > Multi Shape Keys"
}
import bpy, math
from bpy.props import *
# Algorithm:
# - Duplicate active object as many times as the number of shape keys
# - For each copy remove all shape keys except one
# - Removing last shape does not change geometry data of object
# - Apply modifier for each copy
# - Join objects as shapes and restore shape keys names
# - Delete all duplicated object except one
# - Delete old object
# - Restore name of object and object data
def applyModifierForObjectWithShapeKeys(context, modifierName):
list_names = []
list = []
list_shapes = []
if context.object.data.shape_keys:
list_shapes = [o for o in context.object.data.shape_keys.key_blocks]
if(list_shapes == []):
bpy.ops.object.modifier_apply(apply_as='DATA', modifier=modifierName)
return context.view_layer.objects
list.append(context.view_layer.objects)
for i in range(1, len(list_shapes)):
bpy.ops.object.duplicate_move(OBJECT_OT_duplicate={"linked":False, "mode":'TRANSLATION'}, TRANSFORM_OT_translate={"value":(0, 0, 0), "constraint_axis":(False, False, False), "constraint_orientation":'GLOBAL', "mirror":False, "proportional":'DISABLED', "proportional_edit_falloff":'SMOOTH', "proportional_size":1, "snap":False, "snap_target":'CLOSEST', "snap_point":(0, 0, 0), "snap_align":False, "snap_normal":(0, 0, 0), "texture_space":False, "release_confirm":False})
list.append(context.view_layer.objects)
for i, o in enumerate(list):
context.scene.objects = o
list_names.append(o.data.shape_keys.key_blocks[i].name)
for j in range(i+1, len(list))[::-1]:
context.object_shape_key_index = j
bpy.ops.object.shape_key_remove()
for j in range(0, i):
context.object_shape_key_index = 0
bpy.ops.object.shape_key_remove()
# last deleted shape doesn't change object shape
context.object_shape_key_index = 0
bpy.ops.object.shape_key_remove()
# time to apply modifiers
bpy.ops.object.modifier_apply(apply_as='DATA', modifier=modifierName)
bpy.ops.object.select_all(action='DESELECT')
context.view_layer.objects = list[0]
list[0].select = True
bpy.ops.object.shape_key_add(from_mix=False)
context.object.data.shape_keys.key_blocks[0].name = list_names[0]
for i in range(1, len(list)):
list[i].select = True
bpy.ops.object.join_shapes()
list[i].select = False
context.object.data.shape_keys.key_blocks[i].name = list_names[i]
bpy.ops.object.select_all(action='DESELECT')
for o in list[1:]:
o.select = True
bpy.ops.object.delete(use_global=False)
context.view_layer.objects = list[0]
context.view_layer.objects.select = True
return context.view_layer.objects
class ApplyModifierForObjectWithShapeKeysOperator(bpy.types.Operator):
bl_idname = "object.apply_modifier_for_object_with_shape_keys"
bl_label = "Apply Modifiers w/ Shape Keys"
def item_list(self, context):
return [(modifier.name, modifier.name, modifier.name) for modifier in bpy.context.view_layer.objects.active.modifiers]
my_enum = EnumProperty(name="Modifier name",
items = item_list)
def execute(self, context):
ob = context.view_layer.objects
bpy.ops.object.select_all(action='DESELECT')
context.view_layer.objects = ob
context.view_layer.objects.selected = True
applyModifierForObjectWithShapeKeys(context.window, self.my_enum)
return {'FINISHED'}
def invoke(self, context, event):
return context.window_manager.invoke_props_dialog(self)
class DialogPanel(bpy.types.Panel):
bl_label = "Apply Modifiers w/ Shape Keys"
bl_idname = "object.apply_modifier_for_object_with_shape_keys"
bl_space_type = "VIEW_3D"
bl_region_type = "UI"
bl_category = "Edit"
def draw(self, context):
self.layout.operator("object.apply_modifier_for_object_with_shape_keys")
def menu_func(self, context):
self.layout.operator("object.apply_modifier_for_object_with_shape_keys",
text="Apply Modifiers for Object with Shape Keys")
classes = ( ApplyModifierForObjectWithShapeKeysOperator, DialogPanel,)
def register():
from bpy.utils import register_class
for cls in classes:
register_class(cls)
def unregister():
from bpy.utils import unregister_class
for cls in reversed(classes):
unregister_class(cls)
if __name__ == "__main__":
register()