[Bf-extensions-cvs] [38475602] master: animation_add_corrective_shape_key: move to contrib: T63750
meta-androcto
noreply at git.blender.org
Fri May 24 02:35:12 CEST 2019
Commit: 38475602b2ef91f4a0e186aa38a55b6ba3bfba4a
Author: meta-androcto
Date: Fri May 24 10:34:44 2019 +1000
Branches: master
https://developer.blender.org/rBA38475602b2ef91f4a0e186aa38a55b6ba3bfba4a
animation_add_corrective_shape_key: move to contrib: T63750
===================================================================
D animation_add_corrective_shape_key.py
===================================================================
diff --git a/animation_add_corrective_shape_key.py b/animation_add_corrective_shape_key.py
deleted file mode 100644
index 58a4597f..00000000
--- a/animation_add_corrective_shape_key.py
+++ /dev/null
@@ -1,434 +0,0 @@
-# ##### BEGIN GPL LICENSE BLOCK #####
-#
-# This program 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 2
-# 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, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ##### END GPL LICENSE BLOCK #####
-
-# <pep8-80 compliant>
-
-bl_info = {
- "name": "Corrective shape keys",
- "author": "Ivo Grigull (loolarge), Tal Trachtman",
- "version": (1, 0),
- "blender": (2, 57, 0),
- "location": "Object Data > Shape Keys (Search: corrective) ",
- "description": "Creates a corrective shape key for the current pose",
- "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"
- "Scripts/Animation/Corrective_Shape_Key",
- "category": "Animation",
-}
-
-"""
-This script transfer the shape from an object (base mesh without
-modifiers) to another object with modifiers (i.e. posed Armature).
-Only two objects must be selected.
-The first selected object will be added to the second selected
-object as a new shape key.
-
-- Original 2.4x script by Brecht
-- Unpose-function reused from a script by Tal Trachtman in 2007
- http://www.apexbow.com/randd.html
-- Converted to Blender 2.5 by Ivo Grigull
-
-Limitations:
-- Target mesh may not have any transformation at object level,
- it will be set to zero.
-- Fast/Armature method does not work with Bone envelopes or dual quaternions,
- both settings will be disabled in the modifier
-"""
-
-
-import bpy
-from mathutils import Vector, Matrix
-
-
-iterations = 20
-threshold = 1e-16
-
-
-def reset_transform(ob):
- ob.matrix_local.identity()
-
-
-# this version is for shape_key data
-def extract_vert_coords(ob, verts):
- return [v.co.copy() for v in verts]
-
-
-def extract_mapped_coords(ob, shape_verts):
- totvert = len(shape_verts)
-
- depsgraph = bpy.context.evaluated_depsgraph_get()
- ob_eval = ob.evaluated_get(depsgraph)
- mesh = ob_eval.to_mesh()
-
- # cheating, the original mapped verts happen
- # to be at the end of the vertex array
- verts = mesh.vertices
- arr = [verts[i].co.copy() for i in range(len(verts) - totvert, len(verts))]
-
- mesh.user_clear()
- ob_eval.to_mesh_clear()
-
- return arr
-
-
-def apply_vert_coords(ob, mesh, x):
- for i, v in enumerate(mesh):
- v.co = x[i]
- ob.data.update()
-
-
-def func_add_corrective_pose_shape(source, target):
-
- ob_1 = target
- mesh_1 = target.data
- ob_2 = source
- mesh_2 = source.data
-
- reset_transform(target)
-
- # If target object doesn't have Basis shape key, create it.
- if not mesh_1.shape_keys:
- basis = ob_1.shape_key_add()
- basis.name = "Basis"
- ob_1.data.update()
-
- key_index = ob_1.active_shape_key_index
- # Insert new shape key
- if key_index == 0:
- new_shapekey = ob_1.shape_key_add()
- new_shapekey.name = "Shape_" + ob_2.name
-
- key_index = len(mesh_1.shape_keys.key_blocks) - 1
- ob_1.active_shape_key_index = key_index
-
- # else, the active shape will be used (updated)
-
- ob_1.show_only_shape_key = True
-
- vgroup = ob_1.active_shape_key.vertex_group
- ob_1.active_shape_key.vertex_group = ""
-
- mesh_1_key_verts = mesh_1.shape_keys.key_blocks[key_index].data
-
- x = extract_vert_coords(ob_1, mesh_1_key_verts)
-
- targetx = extract_vert_coords(ob_2, mesh_2.vertices)
-
- for iteration in range(0, iterations):
- dx = [[], [], [], [], [], []]
-
- mapx = extract_mapped_coords(ob_1, mesh_1_key_verts)
-
- # finite differencing in X/Y/Z to get approximate gradient
- for i in range(0, len(mesh_1.vertices)):
- epsilon = (targetx[i] - mapx[i]).length
-
- if epsilon < threshold:
- epsilon = 0.0
-
- dx[0] += [x[i] + 0.5 * epsilon * Vector((1, 0, 0))]
- dx[1] += [x[i] + 0.5 * epsilon * Vector((-1, 0, 0))]
- dx[2] += [x[i] + 0.5 * epsilon * Vector((0, 1, 0))]
- dx[3] += [x[i] + 0.5 * epsilon * Vector((0, -1, 0))]
- dx[4] += [x[i] + 0.5 * epsilon * Vector((0, 0, 1))]
- dx[5] += [x[i] + 0.5 * epsilon * Vector((0, 0, -1))]
-
- for j in range(0, 6):
- apply_vert_coords(ob_1, mesh_1_key_verts, dx[j])
- dx[j] = extract_mapped_coords(ob_1, mesh_1_key_verts)
-
- # take a step in the direction of the gradient
- for i in range(0, len(mesh_1.vertices)):
- epsilon = (targetx[i] - mapx[i]).length
-
- if epsilon >= threshold:
- Gx = list((dx[0][i] - dx[1][i]) / epsilon)
- Gy = list((dx[2][i] - dx[3][i]) / epsilon)
- Gz = list((dx[4][i] - dx[5][i]) / epsilon)
- G = Matrix((Gx, Gy, Gz))
- x[i] += G * (targetx[i] - mapx[i])
-
- apply_vert_coords(ob_1, mesh_1_key_verts, x)
-
- ob_1.active_shape_key.vertex_group = vgroup
-
- # set the new shape key value to 1.0, so we see the result instantly
- ob_1.active_shape_key.value = 1.0
-
- #mesh_1.update()
- ob_1.show_only_shape_key = False
-
-
-class add_corrective_pose_shape(bpy.types.Operator):
- """Adds first object as shape to second object for the current pose """ \
- """while maintaining modifiers """ \
- """(i.e. anisculpt, avoiding crazy space) Beware of slowness!"""
-
- bl_idname = "object.add_corrective_pose_shape"
- bl_label = "Add object as corrective pose shape"
-
- @classmethod
- def poll(cls, context):
- return context.active_object is not None
-
- def execute(self, context):
- selection = context.selected_objects
- if len(selection) != 2:
- self.report({'ERROR'}, "Select source and target objects")
- return {'CANCELLED'}
-
- target = context.active_object
- if context.active_object == selection[0]:
- source = selection[1]
- else:
- source = selection[0]
-
- func_add_corrective_pose_shape(source, target)
-
- return {'FINISHED'}
-
-
-def func_object_duplicate_flatten_modifiers(context, obj):
- depsgraph = context.evaluated_depsgraph_get()
- mesh = bpy.data.meshes.new_from_object(obj.evaluated_get(depsgraph))
- name = obj.name + "_clean"
- new_object = bpy.data.objects.new(name, mesh)
- new_object.data = mesh
- context.collection.objects.link(new_object)
- return new_object
-
-
-class object_duplicate_flatten_modifiers(bpy.types.Operator):
- """Duplicates the selected object with modifiers applied"""
-
- bl_idname = "object.object_duplicate_flatten_modifiers"
- bl_label = "Duplicate and apply all"
-
- @classmethod
- def poll(cls, context):
- return context.active_object is not None
-
- def execute(self, context):
- obj_act = context.active_object
-
- new_object = func_object_duplicate_flatten_modifiers(context, obj_act)
-
- # setup the context
- bpy.ops.object.select_all(action='DESELECT')
-
- context.view_layer.objects.active = new_object
- new_object.select_set(True)
-
- return {'FINISHED'}
-
-
-def unposeMesh(meshObToUnpose, meshObToUnposeWeightSrc, armatureOb):
- psdMeshData = meshObToUnpose
-
- psdMesh = psdMeshData
- I = Matrix() # identity matrix
-
- meshData = meshObToUnposeWeightSrc.data
- mesh = meshData
-
- armData = armatureOb.data
-
- pose = armatureOb.pose
- pbones = pose.bones
-
- for index, v in enumerate(mesh.vertices):
- # above is python shortcut for:index goes up from 0 to tot num of
- # verts in mesh, with index incrementing by 1 each iteration
-
- psdMeshVert = psdMesh[index]
-
- listOfBoneNameWeightPairs = []
- for n in mesh.vertices[index].groups:
- try:
- name = meshObToUnposeWeightSrc.vertex_groups[n.group].name
- weight = n.weight
- is_bone = False
- for i in armData.bones:
- if i.name == name:
- is_bone = True
- break
- # ignore non-bone vertex groups
- if is_bone:
- listOfBoneNameWeightPairs.append([name, weight])
- except:
- print('error')
- pass
-
- weightedAverageDictionary = {}
- totalWeight = 0
- for pair in listOfBoneNameWeightPairs:
- totalWeight += pair[1]
-
- for pair in listOfBoneNameWeightPairs:
- if totalWeight > 0: # avoid divide by zero!
- weightedAverageDictionary[pair[0]] = pair[1] / totalWeight
- else:
- weightedAverageDictionary[pair[0]] = 0
-
- # Matrix filled with zeros
- sigma = Matrix()
- sigma.zero()
-
- list = []
- for n in pbones:
- list.append(n)
- list.reverse()
-
- for pbone in list:
- if pbone.name in weightedAverageDictionary:
- #~ print("found key %s", pbone.name)
- vertexWeight = weightedAverageDictionary[pbone.name]
- m = pbone.matrix_channel.copy()
- #m.transpose()
- sigma += (m - I) * vertexWeight
-
- else:
- pass
- #~ print("no key for bone " + pbone.name)
-
- sigma = I + sigma
- sigma.invert()
- psdMeshVert.co = psdMeshVert.co * sigma
-
-
-def func_add_corrective_pose_sh
@@ Diff output truncated at 10240 characters. @@
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