--- /dev/null
+# coding: utf-8
+"""
+Blenderのメッシュをワンスキンメッシュ化する
+"""
+import bpy
+
+from . import bl
+from .pymeshio import englishmap
+
+class VertexAttribute(object):
+ __slots__=[
+ 'nx', 'ny', 'nz', # normal
+ 'u', 'v', # uv
+ ]
+ def __init__(self, nx, ny, nz, u, v):
+ self.nx=nx
+ self.ny=ny
+ self.nz=nz
+ self.u=u
+ self.v=v
+
+ def __str__(self):
+ return "<vkey: %f, %f, %f, %f, %f>" % (
+ self.nx, self.ny, self.nz, self.u, self.v)
+
+ def __hash__(self):
+ return int(100*(self.nx + self.ny + self.nz + self.u + self.v))
+
+ def __eq__(self, rhs):
+ return self.nx==rhs.nx and self.ny==rhs.ny and self.nz==rhs.nz and self.u==rhs.u and self.v==rhs.v
+
+
+class VertexKey(object):
+ __slots__=[
+ 'obj_index', 'index',
+ ]
+
+ def __init__(self, obj_index, index):
+ self.obj_index=obj_index
+ self.index=index
+
+ def __str__(self):
+ return "<vkey: %d, %d>" % (self.obj_index, self.index)
+
+ def __hash__(self):
+ return self.index*100+self.obj_index
+
+ def __eq__(self, rhs):
+ return self.obj_index==rhs.obj_index and self.index==rhs.index
+
+
+class VertexArray(object):
+ """
+ 頂点配列
+ """
+ __slots__=[
+ 'indexArrays',
+ 'positions',
+ 'attributes', # normal and uv
+ 'b0', 'b1', 'weight',
+ 'vertexMap',
+ 'objectMap',
+ ]
+ def __init__(self):
+ # indexArrays split with each material
+ self.indexArrays={}
+
+ self.positions=[]
+ self.attributes=[]
+ self.b0=[]
+ self.b1=[]
+ self.weight=[]
+
+ self.vertexMap={}
+ self.objectMap={}
+
+ def __str__(self):
+ return "<VertexArray %d positions, %d indexArrays>" % (
+ len(self.positions), len(self.indexArrays))
+
+ def zip(self):
+ return zip(
+ self.positions, self.attributes,
+ self.b0, self.b1, self.weight)
+
+ def each(self):
+ keys=[key for key in self.indexArrays.keys()]
+ keys.sort()
+ for key in keys:
+ yield(key, self.indexArrays[key])
+
+ def __addOrGetIndex(self, obj_index, base_index, pos, normal, uv, b0, b1, weight0):
+ key=VertexKey(obj_index, base_index)
+ attribute=VertexAttribute(
+ normal[0], normal[1], normal[2],
+ uv[0], uv[1])
+ if key in self.vertexMap:
+ if attribute in self.vertexMap[key]:
+ return self.vertexMap[key][attribute]
+ else:
+ return self.__addVertex(self.vertexMap[key],
+ pos, attribute, b0, b1, weight0)
+ else:
+ vertexMapKey={}
+ self.vertexMap[key]=vertexMapKey
+ return self.__addVertex(vertexMapKey,
+ pos, attribute, b0, b1, weight0)
+
+ def __addVertex(self, vertexMapKey, pos, attribute, b0, b1, weight0):
+ index=len(self.positions)
+ vertexMapKey[attribute]=index
+ # position
+ self.positions.append((pos.x, pos.y, pos.z))
+ # unique attribute
+ self.attributes.append(attribute)
+ # shared attribute
+ self.b0.append(b0)
+ self.b1.append(b1)
+ self.weight.append(weight0)
+ assert(index<=65535)
+ return index
+
+ def getMappedIndex(self, obj_name, base_index):
+ return self.vertexMap[VertexKey(self.objectMap[obj_name], base_index)]
+
+ def addTriangle(self,
+ object_name, material,
+ base_index0, base_index1, base_index2,
+ pos0, pos1, pos2,
+ n0, n1, n2,
+ uv0, uv1, uv2,
+ b0_0, b0_1, b0_2,
+ b1_0, b1_1, b1_2,
+ weight0, weight1, weight2
+ ):
+ if object_name in self.objectMap:
+ obj_index=self.objectMap[object_name]
+ else:
+ obj_index=len(self.objectMap)
+ self.objectMap[object_name]=obj_index
+ index0=self.__addOrGetIndex(obj_index, base_index0, pos0, n0, uv0, b0_0, b1_0, weight0)
+ index1=self.__addOrGetIndex(obj_index, base_index1, pos1, n1, uv1, b0_1, b1_1, weight1)
+ index2=self.__addOrGetIndex(obj_index, base_index2, pos2, n2, uv2, b0_2, b1_2, weight2)
+
+ if not material in self.indexArrays:
+ self.indexArrays[material]=[]
+ self.indexArrays[material]+=[index0, index1, index2]
+
+
+class Morph(object):
+ __slots__=['name', 'type', 'offsets']
+ def __init__(self, name, type):
+ self.name=name
+ self.type=type
+ self.offsets=[]
+
+ def add(self, index, offset):
+ self.offsets.append((index, offset))
+
+ def sort(self):
+ self.offsets.sort(key=lambda e: e[0])
+
+ def __str__(self):
+ return "<Morph %s>" % self.name
+
+class IKSolver(object):
+ __slots__=['target', 'effector', 'length', 'iterations', 'weight']
+ def __init__(self, target, effector, length, iterations, weight):
+ self.target=target
+ self.effector=effector
+ self.length=length
+ self.iterations=iterations
+ self.weight=weight
+
+
+class SSS(object):
+ def __init__(self):
+ self.use=1
+
+
+class DefaultMatrial(object):
+ def __init__(self):
+ self.name='default'
+ # diffuse
+ self.diffuse_color=[1, 1, 1]
+ self.alpha=1
+ # specular
+ self.specular_toon_size=0
+ self.specular_hardness=5
+ self.specular_color=[1, 1, 1]
+ # ambient
+ self.mirror_color=[1, 1, 1]
+ # flag
+ self.subsurface_scattering=SSS()
+ # texture
+ self.texture_slots=[]
+
+
+class OneSkinMesh(object):
+ __slots__=['vertexArray', 'morphList', 'rigidbodies', 'constraints', ]
+ def __init__(self):
+ self.vertexArray=VertexArray()
+ self.morphList=[]
+ self.rigidbodies=[]
+ self.constraints=[]
+
+ def __str__(self):
+ return "<OneSkinMesh %s, morph:%d>" % (
+ self.vertexArray,
+ len(self.morphList))
+
+ def addMesh(self, obj):
+ if not bl.object.isVisible(obj):
+ return
+ self.__mesh(obj)
+ self.__skin(obj)
+ self.__rigidbody(obj)
+ self.__constraint(obj)
+
+ def __getWeightMap(self, obj, mesh):
+ # bone weight
+ weightMap={}
+ secondWeightMap={}
+ def setWeight(i, name, w):
+ if w>0:
+ if i in weightMap:
+ if i in secondWeightMap:
+ # 上位２つのweightを採用する
+ if w<secondWeightMap[i][1]:
+ pass
+ elif w<weightMap[i][1]:
+ # ２つ目を入れ替え
+ secondWeightMap[i]=(name, w)
+ else:
+ # １つ目を入れ替え
+ weightMap[i]=(name, w)
+ else:
+ if w>weightMap[i][1]:
+ # 多い方をweightMapに
+ secondWeightMap[i]=weightMap[i]
+ weightMap[i]=(name, w)
+ else:
+ secondWeightMap[i]=(name, w)
+ else:
+ weightMap[i]=(name, w)
+
+ # ToDo bone weightと関係ないvertex groupを除外する
+ for i, v in enumerate(mesh.vertices):
+ if len(v.groups)>0:
+ for g in v.groups:
+ setWeight(i, obj.vertex_groups[g.group].name, g.weight)
+ else:
+ try:
+ setWeight(i, obj.vertex_groups[0].name, 1)
+ except:
+ # no vertex_groups
+ pass
+
+ # 合計値が1になるようにする
+ for i in range(len(mesh.vertices)):
+ if i in secondWeightMap:
+ secondWeightMap[i]=(secondWeightMap[i][0], 1.0-weightMap[i][1])
+ elif i in weightMap:
+ weightMap[i]=(weightMap[i][0], 1.0)
+ secondWeightMap[i]=("", 0)
+ else:
+ print("no weight vertex")
+ weightMap[i]=("", 0)
+ secondWeightMap[i]=("", 0)
+
+ return weightMap, secondWeightMap
+
+ def __processFaces(self, obj_name, mesh, weightMap, secondWeightMap):
+ default_material=DefaultMatrial()
+ # 各面の処理
+ for i, face in enumerate(mesh.faces):
+ faceVertexCount=bl.face.getVertexCount(face)
+ try:
+ material=mesh.materials[bl.face.getMaterialIndex(face)]
+ except IndexError as e:
+ material=default_material
+ v=[mesh.vertices[index] for index in bl.face.getVertices(face)]
+ uv=bl.mesh.getFaceUV(
+ mesh, i, face, bl.face.getVertexCount(face))
+ # flip triangle
+ if faceVertexCount==3:
+ # triangle
+ self.vertexArray.addTriangle(
+ obj_name, material.name,
+ v[2].index,
+ v[1].index,
+ v[0].index,
+ v[2].co,
+ v[1].co,
+ v[0].co,
+ bl.vertex.getNormal(v[2]),
+ bl.vertex.getNormal(v[1]),
+ bl.vertex.getNormal(v[0]),
+ uv[2],
+ uv[1],
+ uv[0],
+ weightMap[v[2].index][0],
+ weightMap[v[1].index][0],
+ weightMap[v[0].index][0],
+ secondWeightMap[v[2].index][0],
+ secondWeightMap[v[1].index][0],
+ secondWeightMap[v[0].index][0],
+ weightMap[v[2].index][1],
+ weightMap[v[1].index][1],
+ weightMap[v[0].index][1]
+ )
+ elif faceVertexCount==4:
+ # quadrangle
+ self.vertexArray.addTriangle(
+ obj_name, material.name,
+ v[2].index,
+ v[1].index,
+ v[0].index,
+ v[2].co,
+ v[1].co,
+ v[0].co,
+ bl.vertex.getNormal(v[2]),
+ bl.vertex.getNormal(v[1]),
+ bl.vertex.getNormal(v[0]),
+ uv[2],
+ uv[1],
+ uv[0],
+ weightMap[v[2].index][0],
+ weightMap[v[1].index][0],
+ weightMap[v[0].index][0],
+ secondWeightMap[v[2].index][0],
+ secondWeightMap[v[1].index][0],
+ secondWeightMap[v[0].index][0],
+ weightMap[v[2].index][1],
+ weightMap[v[1].index][1],
+ weightMap[v[0].index][1]
+ )
+ self.vertexArray.addTriangle(
+ obj_name, material.name,
+ v[0].index,
+ v[3].index,
+ v[2].index,
+ v[0].co,
+ v[3].co,
+ v[2].co,
+ bl.vertex.getNormal(v[0]),
+ bl.vertex.getNormal(v[3]),
+ bl.vertex.getNormal(v[2]),
+ uv[0],
+ uv[3],
+ uv[2],
+ weightMap[v[0].index][0],
+ weightMap[v[3].index][0],
+ weightMap[v[2].index][0],
+ secondWeightMap[v[0].index][0],
+ secondWeightMap[v[3].index][0],
+ secondWeightMap[v[2].index][0],
+ weightMap[v[0].index][1],
+ weightMap[v[3].index][1],
+ weightMap[v[2].index][1]
+ )
+
+ def __mesh(self, obj):
+ if bl.RIGID_SHAPE_TYPE in obj:
+ return
+ if bl.CONSTRAINT_A in obj:
+ return
+
+ bl.message("export: %s" % obj.name)
+
+ # メッシュのコピーを生成してオブジェクトの行列を適用する
+ copyMesh, copyObj=bl.object.duplicate(obj)
+ if len(copyMesh.vertices)>0:
+ # apply transform
+ """
+ try:
+ # svn 36722
+ copyObj.scale=obj.scale
+ bpy.ops.object.transform_apply(scale=True)
+ copyObj.rotation_euler=obj.rotation_euler
+ bpy.ops.object.transform_apply(rotation=True)
+ copyObj.location=obj.location
+ bpy.ops.object.transform_apply(location=True)
+ except AttributeError as e:
+ # 2.57b
+ copyObj.scale=obj.scale
+ bpy.ops.object.scale_apply()
+ copyObj.rotation_euler=obj.rotation_euler
+ bpy.ops.object.rotation_apply()
+ copyObj.location=obj.location
+ bpy.ops.object.location_apply()
+ """
+ copyMesh.transform(obj.matrix_world)
+
+ # apply modifier
+ for m in [m for m in copyObj.modifiers]:
+ if m.type=='SOLIDFY':
+ continue
+ elif m.type=='ARMATURE':
+ continue
+ elif m.type=='MIRROR':
+ bpy.ops.object.modifier_apply(modifier=m.name)
+ else:
+ print(m.type)
+
+ weightMap, secondWeightMap=self.__getWeightMap(copyObj, copyMesh)
+ self.__processFaces(obj.name, copyMesh, weightMap, secondWeightMap)
+ bl.object.delete(copyObj)
+
+ def createEmptyBasicSkin(self):
+ self.__getOrCreateMorph('base', 0)
+
+ def __skin(self, obj):
+ if not bl.object.hasShapeKey(obj):
+ return
+
+ indexRelativeMap={}
+ blenderMesh=bl.object.getData(obj)
+ baseMorph=None
+
+ # shape keys
+ vg=bl.object.getVertexGroup(obj, bl.MMD_SHAPE_GROUP_NAME)
+
+ # base
+ used=set()
+ for b in bl.object.getShapeKeys(obj):
+ if b.name==bl.BASE_SHAPE_NAME:
+ baseMorph=self.__getOrCreateMorph('base', 0)
+ basis=b
+
+ relativeIndex=0
+ for index in vg:
+ v=bl.shapekey.getByIndex(b, index)
+ pos=[v[0], v[1], v[2]]
+
+ indices=self.vertexArray.getMappedIndex(obj.name, index)
+ for attribute, i in indices.items():
+ if i in used:
+ continue
+ used.add(i)
+
+ baseMorph.add(i, pos)
+ indexRelativeMap[i]=relativeIndex
+ relativeIndex+=1
+
+ break
+ assert(basis)
+ #print(basis.name, len(baseMorph.offsets))
+
+ if len(baseMorph.offsets)==0:
+ return
+
+ # shape keys
+ for b in bl.object.getShapeKeys(obj):
+ if b.name==bl.BASE_SHAPE_NAME:
+ continue
+
+ #print(b.name)
+ morph=self.__getOrCreateMorph(b.name, 4)
+ used=set()
+ for index, src, dst in zip(
+ range(len(blenderMesh.vertices)),
+ bl.shapekey.get(basis),
+ bl.shapekey.get(b)):
+ offset=[dst[0]-src[0], dst[1]-src[1], dst[2]-src[2]]
+ if offset[0]==0 and offset[1]==0 and offset[2]==0:
+ continue
+ if index in vg:
+ indices=self.vertexArray.getMappedIndex(obj.name, index)
+ for attribute, i in indices.items():
+ if i in used:
+ continue
+ used.add(i)
+ morph.add(indexRelativeMap[i], offset)
+ assert(len(morph.offsets)<len(baseMorph.offsets))
+
+ # sort skinmap
+ original=self.morphList[:]
+ def getIndex(morph):
+ for i, v in enumerate(englishmap.skinMap):
+ if v[0]==morph.name:
+ return i
+ #print(morph)
+ return len(englishmap.skinMap)
+ self.morphList.sort(key=getIndex)
+
+ def __rigidbody(self, obj):
+ if not bl.RIGID_SHAPE_TYPE in obj:
+ return
+ self.rigidbodies.append(obj)
+
+ def __constraint(self, obj):
+ if not bl.CONSTRAINT_A in obj:
+ return
+ self.constraints.append(obj)
+
+ def __getOrCreateMorph(self, name, type):
+ for m in self.morphList:
+ if m.name==name:
+ return m
+ m=Morph(name, type)
+ self.morphList.append(m)
+ return m
+
+ def getVertexCount(self):
+ return len(self.vertexArray.positions)
+
+
+class Bone(object):
+ __slots__=['index', 'name', 'ik_index',
+ 'pos', 'tail', 'parent_index', 'tail_index', 'type', 'isConnect']
+ def __init__(self, name, pos, tail, isConnect):
+ self.index=-1
+ self.name=name
+ self.pos=pos
+ self.tail=tail
+ self.parent_index=None
+ self.tail_index=None
+ self.type=0
+ self.isConnect=isConnect
+ self.ik_index=0
+
+ def __eq__(self, rhs):
+ return self.index==rhs.index
+
+ def __str__(self):
+ return "<Bone %s %d>" % (self.name, self.type)
+
+class BoneBuilder(object):
+ __slots__=['bones', 'boneMap', 'ik_list', 'bone_groups',]
+ def __init__(self):
+ self.bones=[]
+ self.boneMap={}
+ self.ik_list=[]
+ self.bone_groups=[]
+
+ def getBoneGroup(self, bone):
+ for i, g in enumerate(self.bone_groups):
+ for b in g[1]:
+ if b==bone.name:
+ return i+1
+ print('no gorup', bone)
+ return 0
+
+ def build(self, armatureObj):
+ if not armatureObj:
+ return
+
+ bl.message("build skeleton")
+ armature=bl.object.getData(armatureObj)
+
+ ####################
+ # bone group
+ ####################
+ for g in bl.object.boneGroups(armatureObj):
+ self.bone_groups.append((g.name, []))
+
+ ####################
+ # get bones
+ ####################
+ for b in armature.bones.values():
+ if not b.parent:
+ # root bone
+ bone=Bone(b.name,
+ bl.bone.getHeadLocal(b),
+ bl.bone.getTailLocal(b),
+ False)
+ self.__addBone(bone)
+ self.__getBone(bone, b)
+
+ for b in armature.bones.values():
+ if not b.parent:
+ self.__checkConnection(b, None)
+
+ ####################
+ # get IK
+ ####################
+ pose = bl.object.getPose(armatureObj)
+ for b in pose.bones.values():
+ ####################
+ # assing bone group
+ ####################
+ self.__assignBoneGroup(b, b.bone_group)
+ for c in b.constraints:
+ if bl.constraint.isIKSolver(c):
+ ####################
+ # IK target
+ ####################
+ target=self.__boneByName(bl.constraint.ikTarget(c))
+ target.type=2
+
+ ####################
+ # IK effector
+ ####################
+ # IK 接続先
+ link=self.__boneByName(b.name)
+ link.type=6
+
+ # IK chain
+ e=b.parent
+ chainLength=bl.constraint.ikChainLen(c)
+ for i in range(chainLength):
+ # IK影響下
+ chainBone=self.__boneByName(e.name)
+ chainBone.type=4
+ chainBone.ik_index=target.index
+ e=e.parent
+ self.ik_list.append(
+ IKSolver(target, link, chainLength,
+ int(bl.constraint.ikItration(c) * 0.1),
+ bl.constraint.ikRotationWeight(c)
+ ))
+
+ ####################
+
+ # boneのsort
+ self._sortBy()
+ self._fix()
+ # IKのsort
+ def getIndex(ik):
+ for i, v in enumerate(englishmap.boneMap):
+ if v[0]==ik.target.name:
+ return i
+ return len(englishmap.boneMap)
+ self.ik_list.sort(key=getIndex)
+
+ def __assignBoneGroup(self, poseBone, boneGroup):
+ if boneGroup:
+ for g in self.bone_groups:
+ if g[0]==boneGroup.name:
+ g[1].append(poseBone.name)
+
+ def __checkConnection(self, b, p):
+ if bl.bone.isConnected(b):
+ parent=self.__boneByName(p.name)
+ parent.isConnect=True
+
+ for c in b.children:
+ self.__checkConnection(c, b)
+
+ def _sortBy(self):
+ """
+ boneMap順に並べ替える
+ """
+ boneMap=englishmap.boneMap
+ original=self.bones[:]
+ def getIndex(bone):
+ for i, k_v in enumerate(boneMap):
+ if k_v[0]==bone.name:
+ return i
+ print(bone)
+ return len(boneMap)
+
+ self.bones.sort(key=getIndex)
+
+ sortMap={}
+ for i, b in enumerate(self.bones):
+ src=original.index(b)
+ sortMap[src]=i
+ for b in self.bones:
+ b.index=sortMap[b.index]
+ if b.parent_index:
+ b.parent_index=sortMap[b.parent_index]
+ if b.tail_index:
+ b.tail_index=sortMap[b.tail_index]
+ if b.ik_index>0:
+ b.ik_index=sortMap[b.ik_index]
+
+ def _fix(self):
+ """
+ 調整
+ """
+ for b in self.bones:
+ # parent index
+ if b.parent_index==None:
+ b.parent_index=0xFFFF
+ else:
+ if b.type==6 or b.type==7:
+ # fix tail bone
+ parent=self.bones[b.parent_index]
+ #print('parnet', parent.name)
+ parent.tail_index=b.index
+
+ for b in self.bones:
+ if b.tail_index==None:
+ b.tail_index=0
+ elif b.type==9:
+ b.tail_index==0
+
+ def getIndex(self, bone):
+ for i, b in enumerate(self.bones):
+ if b==bone:
+ return i
+ assert(false)
+
+ def indexByName(self, name):
+ if name=='':
+ return 0
+ else:
+ try:
+ return self.getIndex(self.__boneByName(name))
+ except:
+ return 0
+
+ def __boneByName(self, name):
+ return self.boneMap[name]
+
+ def __getBone(self, parent, b):
+ if len(b.children)==0:
+ parent.type=7
+ return
+
+ for i, c in enumerate(b.children):
+ bone=Bone(c.name,
+ bl.bone.getHeadLocal(c),
+ bl.bone.getTailLocal(c),
+ bl.bone.isConnected(c))
+ self.__addBone(bone)
+ if parent:
+ bone.parent_index=parent.index
+ #if i==0:
+ if bone.isConnect or (not parent.tail_index and parent.tail==bone.pos):
+ parent.tail_index=bone.index
+ self.__getBone(bone, c)
+
+ def __addBone(self, bone):
+ bone.index=len(self.bones)
+ self.bones.append(bone)
+ self.boneMap[bone.name]=bone
+
+
+class Node(object):
+ __slots__=['o', 'children']
+ def __init__(self, o):
+ self.o=o
+ self.children=[]
+
+
+
+class Exporter(object):
+
+ __slots__=[
+ 'armatureObj',
+ 'oneSkinMesh',
+ 'englishName',
+ 'englishComment',
+ 'name',
+ 'comment',
+ 'skeleton',
+ ]
+ def setup(self):
+ self.armatureObj=None
+
+ # 木構造を構築する
+ object_node_map={}
+ for o in bl.object.each():
+ object_node_map[o]=Node(o)
+ for o in bl.object.each():
+ node=object_node_map[o]
+ if node.o.parent:
+ object_node_map[node.o.parent].children.append(node)
+
+ # ルートを得る
+ root=object_node_map[bl.object.getActive()]
+ o=root.o
+ self.englishName=o.name
+ self.englishComment=o[bl.MMD_COMMENT] if bl.MMD_COMMENT in o else 'blender export\n'
+ self.name=o[bl.MMD_MB_NAME] if bl.MMD_MB_NAME in o else 'Blenderエクスポート'
+ self.comment=o[bl.MMD_MB_COMMENT] if bl.MMD_MB_COMMENT in o else 'Blnderエクスポート\n'
+
+ # ワンスキンメッシュを作る
+ self.oneSkinMesh=OneSkinMesh()
+ self.__createOneSkinMesh(root)
+ bl.message(self.oneSkinMesh)
+ if len(self.oneSkinMesh.morphList)==0:
+ # create emtpy skin
+ self.oneSkinMesh.createEmptyBasicSkin()
+
+ # skeleton
+ self.skeleton=BoneBuilder()
+ self.skeleton.build(self.armatureObj)
+
+ def __createOneSkinMesh(self, node):
+ ############################################################
+ # search armature modifier
+ ############################################################
+ for m in node.o.modifiers:
+ if bl.modifier.isType(m, 'ARMATURE'):
+ armatureObj=bl.modifier.getArmatureObject(m)
+ if not self.armatureObj:
+ self.armatureObj=armatureObj
+ elif self.armatureObj!=armatureObj:
+ print("warning! found multiple armature. ignored.",
+ armatureObj.name)
+
+ if node.o.type.upper()=='MESH':
+ self.oneSkinMesh.addMesh(node.o)
+
+ for child in node.children:
+ self.__createOneSkinMesh(child)
+
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