715 lines
24 KiB
Python
715 lines
24 KiB
Python
# SPDX-License-Identifier: GPL-2.0-or-later
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import bpy
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import re
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import time
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from typing import Optional
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from .utils.errors import MetarigError
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from .utils.bones import new_bone
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from .utils.layers import ORG_LAYER, MCH_LAYER, DEF_LAYER, ROOT_LAYER
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from .utils.naming import (ORG_PREFIX, MCH_PREFIX, DEF_PREFIX, ROOT_NAME, make_original_name,
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change_name_side, get_name_side, Side)
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from .utils.widgets import WGT_PREFIX, WGT_GROUP_PREFIX
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from .utils.widgets_special import create_root_widget
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from .utils.mechanism import refresh_all_drivers
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from .utils.misc import gamma_correct, select_object, ArmatureObject, verify_armature_obj
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from .utils.collections import (ensure_collection, list_layer_collections,
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filter_layer_collections_by_object)
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from .utils.rig import get_rigify_type, get_rigify_layers, get_rigify_target_rig,\
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get_rigify_rig_basename, get_rigify_force_widget_update, get_rigify_finalize_script,\
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get_rigify_mirror_widgets
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from .utils.action_layers import ActionLayerBuilder
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from . import base_generate
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from . import rig_ui_template
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from . import rig_lists
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RIG_MODULE = "rigs"
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class Timer:
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def __init__(self):
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self.time_val = time.time()
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def tick(self, string):
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t = time.time()
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print(string + "%.3f" % (t - self.time_val))
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self.time_val = t
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class Generator(base_generate.BaseGenerator):
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usable_collections: list[bpy.types.LayerCollection]
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action_layers: ActionLayerBuilder
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def __init__(self, context, metarig):
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super().__init__(context, metarig)
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self.id_store = context.window_manager
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def find_rig_class(self, rig_type):
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rig_module = rig_lists.rigs[rig_type]["module"]
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return rig_module.Rig
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def __switch_to_usable_collection(self, obj, fallback=False):
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collections = filter_layer_collections_by_object(self.usable_collections, obj)
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if collections:
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self.layer_collection = collections[0]
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elif fallback:
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self.layer_collection = self.view_layer.layer_collection
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self.collection = self.layer_collection.collection
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def ensure_rig_object(self) -> ArmatureObject:
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"""Check if the generated rig already exists, so we can
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regenerate in the same object. If not, create a new
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object to generate the rig in.
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"""
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print("Fetch rig.")
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meta_data = self.metarig.data
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target_rig = get_rigify_target_rig(meta_data)
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if not target_rig:
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rig_basename = get_rigify_rig_basename(meta_data)
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if rig_basename:
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rig_new_name = rig_basename
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elif "metarig" in self.metarig.name:
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rig_new_name = self.metarig.name.replace("metarig", "rig")
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elif "META" in self.metarig.name:
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rig_new_name = self.metarig.name.replace("META", "RIG")
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else:
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rig_new_name = "RIG-" + self.metarig.name
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arm = bpy.data.armatures.new(rig_new_name)
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target_rig = verify_armature_obj(bpy.data.objects.new(rig_new_name, arm))
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target_rig.display_type = 'WIRE'
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# If the object is already added to the scene, switch to its collection
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if target_rig in list(self.context.scene.collection.all_objects):
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self.__switch_to_usable_collection(target_rig)
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else:
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# Otherwise, add to the selected collection or the metarig collection if unusable
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if (self.layer_collection not in self.usable_collections
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or self.layer_collection == self.view_layer.layer_collection):
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self.__switch_to_usable_collection(self.metarig, True)
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self.collection.objects.link(target_rig)
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# Configure and remember the object
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meta_data.rigify_target_rig = target_rig
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target_rig.data.pose_position = 'POSE'
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return target_rig
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def __unhide_rig_object(self, obj: bpy.types.Object):
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# Ensure the object is visible and selectable
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obj.hide_set(False, view_layer=self.view_layer)
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obj.hide_viewport = False
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if not obj.visible_get(view_layer=self.view_layer):
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raise Exception('Could not generate: Target rig is not visible')
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obj.select_set(True, view_layer=self.view_layer)
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if not obj.select_get(view_layer=self.view_layer):
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raise Exception('Could not generate: Cannot select target rig')
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if self.layer_collection not in self.usable_collections:
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raise Exception('Could not generate: Could not find a usable collection.')
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def __find_legacy_collection(self) -> bpy.types.Collection:
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"""For backwards comp, matching by name to find a legacy collection.
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(For before there was a Widget Collection PointerProperty)
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"""
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widgets_group_name = WGT_GROUP_PREFIX + self.obj.name
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old_collection = bpy.data.collections.get(widgets_group_name)
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if old_collection and old_collection.library:
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old_collection = None
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if not old_collection:
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# Update the old 'Widgets' collection
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legacy_collection = bpy.data.collections.get('Widgets')
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if legacy_collection and widgets_group_name in legacy_collection.objects\
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and not legacy_collection.library:
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legacy_collection.name = widgets_group_name
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old_collection = legacy_collection
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if old_collection:
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# Rename the collection
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old_collection.name = widgets_group_name
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return old_collection
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def ensure_widget_collection(self):
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# Create/find widget collection
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self.widget_collection = self.metarig.data.rigify_widgets_collection
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if not self.widget_collection:
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self.widget_collection = self.__find_legacy_collection()
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if not self.widget_collection:
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widgets_group_name = WGT_GROUP_PREFIX + self.obj.name.replace("RIG-", "")
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self.widget_collection = ensure_collection(
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self.context, widgets_group_name, hidden=True)
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self.metarig.data.rigify_widgets_collection = self.widget_collection
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self.use_mirror_widgets = get_rigify_mirror_widgets(self.metarig.data)
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# Build tables for existing widgets
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self.old_widget_table = {}
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self.new_widget_table = {}
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self.widget_mirror_mesh = {}
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if get_rigify_force_widget_update(self.metarig.data):
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# Remove widgets if force update is set
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for obj in list(self.widget_collection.objects):
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bpy.data.objects.remove(obj)
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elif self.obj.pose:
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# Find all widgets from the collection referenced by the old rig
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known_widgets = set(obj.name for obj in self.widget_collection.objects)
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for bone in self.obj.pose.bones:
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if bone.custom_shape and bone.custom_shape.name in known_widgets:
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self.old_widget_table[bone.name] = bone.custom_shape
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# Rename widgets in case the rig was renamed
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name_prefix = WGT_PREFIX + self.obj.name + "_"
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for bone_name, widget in self.old_widget_table.items():
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old_data_name = change_name_side(widget.name, get_name_side(widget.data.name))
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widget.name = name_prefix + bone_name
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# If the mesh name is the same as the object, rename it too
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if widget.data.name == old_data_name:
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widget.data.name = change_name_side(
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widget.name, get_name_side(widget.data.name))
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# Find meshes for mirroring
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if self.use_mirror_widgets:
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for bone_name, widget in self.old_widget_table.items():
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mid_name = change_name_side(bone_name, Side.MIDDLE)
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if bone_name != mid_name:
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assert isinstance(widget.data, bpy.types.Mesh)
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self.widget_mirror_mesh[mid_name] = widget.data
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def __duplicate_rig(self):
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obj = self.obj
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metarig = self.metarig
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context = self.context
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# Remove all bones from the generated rig armature.
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bpy.ops.object.mode_set(mode='EDIT')
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for bone in obj.data.edit_bones:
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obj.data.edit_bones.remove(bone)
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bpy.ops.object.mode_set(mode='OBJECT')
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# Select and duplicate metarig
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select_object(context, metarig, deselect_all=True)
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bpy.ops.object.duplicate()
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# Rename org bones in the temporary object
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temp_obj = verify_armature_obj(context.view_layer.objects.active)
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assert temp_obj and temp_obj != metarig
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self.__freeze_driver_vars(temp_obj)
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self.__rename_org_bones(temp_obj)
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# Select the target rig and join
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select_object(context, obj)
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saved_matrix = obj.matrix_world.copy()
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obj.matrix_world = metarig.matrix_world
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bpy.ops.object.join()
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obj.matrix_world = saved_matrix
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# Select the generated rig
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select_object(context, obj, deselect_all=True)
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# Clean up animation data
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if obj.animation_data:
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obj.animation_data.action = None
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for track in obj.animation_data.nla_tracks:
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obj.animation_data.nla_tracks.remove(track)
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@staticmethod
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def __freeze_driver_vars(obj: bpy.types.Object):
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if obj.animation_data:
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# Freeze drivers referring to custom properties
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for d in obj.animation_data.drivers:
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for var in d.driver.variables:
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for tar in var.targets:
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# If a custom property
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if var.type == 'SINGLE_PROP' \
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and re.match(r'^pose.bones\["[^"\]]*"]\["[^"\]]*"]$',
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tar.data_path):
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tar.data_path = "RIGIFY-" + tar.data_path
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def __rename_org_bones(self, obj: ArmatureObject):
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# Make a list of the original bones, so we can keep track of them.
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original_bones = [bone.name for bone in obj.data.bones]
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# Add the ORG_PREFIX to the original bones.
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for i in range(0, len(original_bones)):
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bone = obj.pose.bones[original_bones[i]]
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# Preserve the root bone as is if present
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if bone.name == ROOT_NAME:
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if bone.parent:
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raise MetarigError('Root bone must have no parent')
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if get_rigify_type(bone) not in ('', 'basic.raw_copy'):
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raise MetarigError('Root bone must have no rig, or use basic.raw_copy')
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continue
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# This rig type is special in that it preserves the name of the bone.
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if get_rigify_type(bone) != 'basic.raw_copy':
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bone.name = make_original_name(original_bones[i])
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original_bones[i] = bone.name
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self.original_bones = original_bones
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def __create_root_bone(self):
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obj = self.obj
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metarig = self.metarig
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if ROOT_NAME in obj.data.bones:
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# Use the existing root bone
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root_bone = ROOT_NAME
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else:
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# Create the root bone.
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root_bone = new_bone(obj, ROOT_NAME)
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spread = get_xy_spread(metarig.data.bones) or metarig.data.bones[0].length
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spread = float('%.3g' % spread)
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scale = spread/0.589
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obj.data.edit_bones[root_bone].head = (0, 0, 0)
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obj.data.edit_bones[root_bone].tail = (0, scale, 0)
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obj.data.edit_bones[root_bone].roll = 0
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self.root_bone = root_bone
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self.bone_owners[root_bone] = None
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self.noparent_bones.add(root_bone)
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def __parent_bones_to_root(self):
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eb = self.obj.data.edit_bones
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# Parent loose bones to root
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for bone in eb:
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if bone.name in self.noparent_bones:
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continue
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elif bone.parent is None:
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bone.use_connect = False
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bone.parent = eb[self.root_bone]
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def __lock_transforms(self):
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# Lock transforms on all non-control bones
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r = re.compile("[A-Z][A-Z][A-Z]-")
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for pb in self.obj.pose.bones:
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if r.match(pb.name):
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pb.lock_location = (True, True, True)
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pb.lock_rotation = (True, True, True)
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pb.lock_rotation_w = True
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pb.lock_scale = (True, True, True)
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def __assign_layers(self):
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pose_bones = self.obj.pose.bones
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pose_bones[self.root_bone].bone.layers = ROOT_LAYER
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# Every bone that has a name starting with "DEF-" make deforming. All the
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# others make non-deforming.
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for pbone in pose_bones:
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bone = pbone.bone
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name = bone.name
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layers = None
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bone.use_deform = name.startswith(DEF_PREFIX)
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# Move all the original bones to their layer.
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if name.startswith(ORG_PREFIX):
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layers = ORG_LAYER
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# Move all the bones with names starting with "MCH-" to their layer.
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elif name.startswith(MCH_PREFIX):
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layers = MCH_LAYER
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# Move all the bones with names starting with "DEF-" to their layer.
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elif name.startswith(DEF_PREFIX):
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layers = DEF_LAYER
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if layers is not None:
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bone.layers = layers
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# Remove custom shapes from non-control bones
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pbone.custom_shape = None
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bone.bbone_x = bone.bbone_z = bone.length * 0.05
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def __restore_driver_vars(self):
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obj = self.obj
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# Alter marked driver targets
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if obj.animation_data:
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for d in obj.animation_data.drivers:
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for v in d.driver.variables:
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for tar in v.targets:
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if tar.data_path.startswith("RIGIFY-"):
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temp, bone, prop = tuple(
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[x.strip('"]') for x in tar.data_path.split('["')])
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if bone in obj.data.bones and prop in obj.pose.bones[bone].keys():
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tar.data_path = tar.data_path[7:]
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else:
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org_name = make_original_name(bone)
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org_name = self.org_rename_table.get(org_name, org_name)
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tar.data_path = 'pose.bones["%s"]["%s"]' % (org_name, prop)
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def __assign_widgets(self):
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obj_table = {obj.name: obj for obj in self.scene.objects}
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# Assign shapes to bones
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# Object's with name WGT-<bone_name> get used as that bone's shape.
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for bone in self.obj.pose.bones:
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# First check the table built by create_widget
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if bone.name in self.new_widget_table:
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bone.custom_shape = self.new_widget_table[bone.name]
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continue
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# Object names are limited to 63 characters... arg
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wgt_name = (WGT_PREFIX + self.obj.name + '_' + bone.name)[:63]
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if wgt_name in obj_table:
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bone.custom_shape = obj_table[wgt_name]
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def __compute_visible_layers(self):
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# Reveal all the layers with control bones on them
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vis_layers = [False for _ in range(0, 32)]
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for bone in self.obj.data.bones:
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for i in range(0, 32):
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vis_layers[i] = vis_layers[i] or bone.layers[i]
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for i in range(0, 32):
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vis_layers[i] = vis_layers[i] and not (ORG_LAYER[i] or MCH_LAYER[i] or DEF_LAYER[i])
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self.obj.data.layers = vis_layers
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def generate(self):
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context = self.context
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metarig = self.metarig
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view_layer = self.view_layer
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t = Timer()
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self.usable_collections = list_layer_collections(
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view_layer.layer_collection, selectable=True)
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bpy.ops.object.mode_set(mode='OBJECT')
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###########################################
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# Create/find the rig object and set it up
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self.obj = obj = self.ensure_rig_object()
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self.__unhide_rig_object(obj)
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# Select the chosen working collection in case it changed
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self.view_layer.active_layer_collection = self.layer_collection
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# Get rid of anim data in case the rig already existed
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print("Clear rig animation data.")
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obj.animation_data_clear()
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obj.data.animation_data_clear()
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select_object(context, obj, deselect_all=True)
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###########################################
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# Create Widget Collection
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self.ensure_widget_collection()
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t.tick("Create widgets collection: ")
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###########################################
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# Get parented objects to restore later
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child_parent_bones = {} # {object: bone}
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for child in obj.children:
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child_parent_bones[child] = child.parent_bone
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###########################################
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# Copy bones from metarig to obj (adds ORG_PREFIX)
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self.__duplicate_rig()
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obj.data.use_mirror_x = False
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t.tick("Duplicate rig: ")
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###########################################
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# Put the rig_name in the armature custom properties
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obj.data["rig_id"] = self.rig_id
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self.script = rig_ui_template.ScriptGenerator(self)
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self.action_layers = ActionLayerBuilder(self)
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###########################################
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bpy.ops.object.mode_set(mode='OBJECT')
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self.instantiate_rig_tree()
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t.tick("Instantiate rigs: ")
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###########################################
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bpy.ops.object.mode_set(mode='OBJECT')
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self.invoke_initialize()
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t.tick("Initialize rigs: ")
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###########################################
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bpy.ops.object.mode_set(mode='EDIT')
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self.invoke_prepare_bones()
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t.tick("Prepare bones: ")
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###########################################
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bpy.ops.object.mode_set(mode='OBJECT')
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bpy.ops.object.mode_set(mode='EDIT')
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self.__create_root_bone()
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self.invoke_generate_bones()
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t.tick("Generate bones: ")
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###########################################
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bpy.ops.object.mode_set(mode='OBJECT')
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bpy.ops.object.mode_set(mode='EDIT')
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self.invoke_parent_bones()
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self.__parent_bones_to_root()
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t.tick("Parent bones: ")
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###########################################
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bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
self.invoke_configure_bones()
|
|
|
|
t.tick("Configure bones: ")
|
|
|
|
###########################################
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
self.invoke_preapply_bones()
|
|
|
|
t.tick("Preapply bones: ")
|
|
|
|
###########################################
|
|
bpy.ops.object.mode_set(mode='EDIT')
|
|
|
|
self.invoke_apply_bones()
|
|
|
|
t.tick("Apply bones: ")
|
|
|
|
###########################################
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
self.invoke_rig_bones()
|
|
|
|
t.tick("Rig bones: ")
|
|
|
|
###########################################
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
self.invoke_generate_widgets()
|
|
|
|
# Generate the default root widget last in case it's rigged with raw_copy
|
|
create_root_widget(obj, self.root_bone)
|
|
|
|
t.tick("Generate widgets: ")
|
|
|
|
###########################################
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
self.__lock_transforms()
|
|
self.__assign_layers()
|
|
self.__compute_visible_layers()
|
|
self.__restore_driver_vars()
|
|
|
|
t.tick("Assign layers: ")
|
|
|
|
###########################################
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
self.invoke_finalize()
|
|
|
|
t.tick("Finalize: ")
|
|
|
|
###########################################
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
self.__assign_widgets()
|
|
|
|
# Create Selection Sets
|
|
create_selection_sets(obj, metarig)
|
|
|
|
# Create Bone Groups
|
|
create_bone_groups(obj, metarig, self.layer_group_priorities)
|
|
|
|
t.tick("The rest: ")
|
|
|
|
###########################################
|
|
# Restore state
|
|
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
obj.data.pose_position = 'POSE'
|
|
|
|
# Restore parent to bones
|
|
for child, sub_parent in child_parent_bones.items():
|
|
if sub_parent in obj.pose.bones:
|
|
mat = child.matrix_world.copy()
|
|
child.parent_bone = sub_parent
|
|
child.matrix_world = mat
|
|
|
|
# Clear any transient errors in drivers
|
|
refresh_all_drivers()
|
|
|
|
###########################################
|
|
# Execute the finalize script
|
|
|
|
finalize_script = get_rigify_finalize_script(metarig.data)
|
|
|
|
if finalize_script:
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
exec(finalize_script.as_string(), {})
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
|
|
###########################################
|
|
# Restore active collection
|
|
view_layer.active_layer_collection = self.layer_collection
|
|
|
|
|
|
def generate_rig(context, metarig):
|
|
""" Generates a rig from a metarig.
|
|
|
|
"""
|
|
# Initial configuration
|
|
rest_backup = metarig.data.pose_position
|
|
metarig.data.pose_position = 'REST'
|
|
|
|
try:
|
|
generator = Generator(context, metarig)
|
|
|
|
base_generate.BaseGenerator.instance = generator
|
|
|
|
generator.generate()
|
|
|
|
metarig.data.pose_position = rest_backup
|
|
|
|
except Exception as e:
|
|
# Cleanup if something goes wrong
|
|
print("Rigify: failed to generate rig.")
|
|
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
metarig.data.pose_position = rest_backup
|
|
|
|
# Continue the exception
|
|
raise e
|
|
|
|
finally:
|
|
base_generate.BaseGenerator.instance = None
|
|
|
|
|
|
def create_selection_set_for_rig_layer(rig: ArmatureObject, set_name: str, layer_idx: int) -> None:
|
|
"""Create a single selection set on a rig.
|
|
|
|
The set will contain all bones on the rig layer with the given index.
|
|
"""
|
|
sel_set = rig.selection_sets.add() # noqa
|
|
sel_set.name = set_name
|
|
|
|
for b in rig.pose.bones:
|
|
if not b.bone.layers[layer_idx] or b.name in sel_set.bone_ids:
|
|
continue
|
|
|
|
bone_id = sel_set.bone_ids.add()
|
|
bone_id.name = b.name
|
|
|
|
|
|
def create_selection_sets(obj: ArmatureObject, metarig: ArmatureObject):
|
|
"""Create selection sets if the Selection Sets addon is enabled.
|
|
|
|
Whether a selection set for a rig layer is created is controlled in the
|
|
Rigify Layer Names panel.
|
|
"""
|
|
# Check if selection sets addon is installed
|
|
if 'bone_selection_groups' not in bpy.context.preferences.addons \
|
|
and 'bone_selection_sets' not in bpy.context.preferences.addons:
|
|
return
|
|
|
|
obj.selection_sets.clear() # noqa
|
|
|
|
rigify_layers = get_rigify_layers(metarig.data)
|
|
|
|
for i, layer in enumerate(rigify_layers):
|
|
if layer.name == '' or not layer.selset:
|
|
continue
|
|
|
|
create_selection_set_for_rig_layer(obj, layer.name, i)
|
|
|
|
|
|
def create_bone_groups(obj, metarig, priorities: Optional[dict[str, dict[int, float]]] = None):
|
|
bpy.ops.object.mode_set(mode='OBJECT')
|
|
pb = obj.pose.bones
|
|
layers = metarig.data.rigify_layers
|
|
groups = metarig.data.rigify_colors
|
|
priorities = priorities or {}
|
|
dummy = {}
|
|
|
|
# Create BGs
|
|
for layer in layers:
|
|
if layer.group == 0:
|
|
continue
|
|
g_id = layer.group - 1
|
|
name = groups[g_id].name
|
|
if name not in obj.pose.bone_groups.keys():
|
|
bg = obj.pose.bone_groups.new(name=name)
|
|
bg.color_set = 'CUSTOM'
|
|
bg.colors.normal = gamma_correct(groups[g_id].normal)
|
|
bg.colors.select = gamma_correct(groups[g_id].select)
|
|
bg.colors.active = gamma_correct(groups[g_id].active)
|
|
|
|
for b in pb:
|
|
try:
|
|
bone_priorities = priorities.get(b.name, dummy)
|
|
enabled = [i for i, v in enumerate(b.bone.layers) if v]
|
|
layer_index = max(enabled, key=lambda i: bone_priorities.get(i, 0))
|
|
except ValueError:
|
|
continue
|
|
if layer_index > len(layers) - 1: # bone is on reserved layers
|
|
continue
|
|
g_id = layers[layer_index].group - 1
|
|
if g_id >= 0:
|
|
name = groups[g_id].name
|
|
b.bone_group = obj.pose.bone_groups[name]
|
|
|
|
|
|
def get_xy_spread(bones):
|
|
x_max = 0
|
|
y_max = 0
|
|
for b in bones:
|
|
x_max = max((x_max, abs(b.head[0]), abs(b.tail[0])))
|
|
y_max = max((y_max, abs(b.head[1]), abs(b.tail[1])))
|
|
|
|
return max((x_max, y_max))
|