从 Cinema4d 到 Blender 的 3D 动画
https://stackoverflow.com/questions/2957310
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我需要 将网格动画从 Cinema4D 导入 Blender.
我试图使用Collada来做到这一点。Collada1.3进口商似乎无能为力，Collada 1.4进口商似乎有效，但是动画并没有将其导入到搅拌机中。
看完之后 这个帖子:
问题解决了！
如果有人来这里寻找答案，我通过电子邮件与Otomo进行了交谈，他恳切地解释说，问题在于.Dae文件被错误地导出了C4D。
我希望Otomo不介意我引用他的电子邮件，我只是不想让其他人浪费我在如此愚蠢的问题上所做的时间。
在文本编辑器中打开.DAE并更改：
数据数据
对此：
数据数据
FPS在C4D和搅拌机中也必须相同。
我尝试过，但出现错误：
FEEDBACK: Illusoft Collada 1.4 Plugin v0.3.162 started
The minor version of the file you are using is newer then the plug-in, so errors may occur.
image not found: None
Traceback (most recent call last):
File "/Applications/blender/blender.app/Contents/MacOS/.blender/scripts/bpymodules/colladaImEx/cstartup.py", line 681, in ButtonEvent
onlyMainScene, applyModifiers)
File "/Applications/blender/blender.app/Contents/MacOS/.blender/scripts/bpymodules/colladaImEx/translator.py", line 120, in __init__
self.__Import(fileName)
File "/Applications/blender/blender.app/Contents/MacOS/.blender/scripts/bpymodules/colladaImEx/translator.py", line 127, in __Import
documentTranslator.Import(fileName)
File "/Applications/blender/blender.app/Contents/MacOS/.blender/scripts/bpymodules/colladaImEx/translator.py", line 333, in Import
self.sceneGraph.LoadFromCollada(self.colladaDocument.visualScenesLibrary.items, self.colladaDocument.scene)
File "/Applications/blender/blender.app/Contents/MacOS/.blender/scripts/bpymodules/colladaImEx/translator.py", line 550, in LoadFromCollada
ob = sceneNode.ObjectFromDae(daeNode)
File "/Applications/blender/blender.app/Contents/MacOS/.blender/scripts/bpymodules/colladaImEx/translator.py", line 2079, in ObjectFromDae
a.LoadFromDae(daeAnimation, daeNode, newObject)
File "/Applications/blender/blender.app/Contents/MacOS/.blender/scripts/bpymodules/colladaImEx/translator.py", line 1254, in LoadFromDae
interpolationsSource = daeAnimation.GetSource(interpolations.source)
AttributeError: 'NoneType' object has no attribute 'source'
有人遇到过这个问题吗？在哪里可以找到较新的 Collada 进口商？关于修改导入器有什么提示吗？
笔记：搅拌机2.5a2 导入 collada 动画，但坐标系不同，并非所有动画都能通过。例如，当我将一个从0,0,0到100,100,100的盒子进行动画动画时，将其旋转在x，y，z上，然后在x，y，z上缩放x，y，z，在搅拌器中我得到：1 轴上的平移（x 最初是cinema 4d 中的 y），旋转很好，比例被忽略。
解决方案
我最终写了一个剧本。
我几乎找不到可用的 C.O.F.F.E.E.文档所以继续并安装 py4D.
文档非常好，论坛的支持也很棒。
这是当前的脚本：
import c4d
from c4d import documents,UVWTag
from c4d.utils import Deg
from c4d import symbols as sy, plugins, utils, bitmaps, gui
import math
def BlenderExport():
if not op: return
if op.GetType() != 5100:
print 'Selected Object is not an editable mesh'
return
unit = 0.001#for scale
foffset = 1#for frames
bd = doc.GetRenderBaseDraw()
scr = bd.GetFrameScreen()
rd = doc.GetActiveRenderData()
sizeX = int(rd[sy.RDATA_XRES_VIRTUAL])
sizeY = int(rd[sy.RDATA_YRES_VIRTUAL])
name = op.GetName()
fps = doc.GetFps()
sFrame= doc.GetMinTime().GetFrame(fps)
eFrame= doc.GetMaxTime().GetFrame(fps)
code = 'import Blender\nfrom Blender import *\nimport bpy\nfrom Blender.Mathutils import *\n\nscn = bpy.data.scenes.active\ncontext=scn.getRenderingContext()\ncontext.fps = '+str(fps)+'\ncontext.sFrame = '+str(sFrame)+'\ncontext.eFrame = '+str(eFrame)+'\ncontext.sizeX = '+str(sizeX)+'\ncontext.sizeY = ' + str(sizeY) + '\n'
def GetMesh(code):
# goto 0
doc.SetTime(c4d.BaseTime(0, fps))
c4d.DrawViews( c4d.DA_ONLY_ACTIVE_VIEW|c4d.DA_NO_THREAD|c4d.DA_NO_REDUCTION|c4d.DA_STATICBREAK )
c4d.GeSyncMessage(c4d.EVMSG_TIMECHANGED)
doc.SetTime(doc.GetTime())
c4d.EventAdd(c4d.EVENT_ANIMATE)
code += 'editmode = Window.EditMode()\nif editmode:\tWindow.EditMode(0)\n'
coords4D = op.GetPointAll()
coords = 'coords = ['
uvw = 0
uvs = 'uvs = ['
for tag in op.GetTags():
if tag.GetName() == "UVW":
uvw = tag
for c in coords4D:
coords += '['+str(c.x*unit)+','+str(c.z*unit)+','+str(c.y*unit)+'],'
coords = coords.rpartition(',')[0] + ']\n'
faces4D = op.GetAllPolygons()
fcount = 0
faces = 'faces = ['
for f in faces4D:
faces += '['+str(f)+'],'
uv = uvw.Get(fcount);
uvs += '[Vector('+str(uv[0].x)+','+str(1.0-uv[0].y)+'),Vector('+str(uv[1].x)+','+str(1.0-uv[1].y)+'),Vector('+str(uv[2].x)+','+str(1.0-uv[2].y)+')],'
fcount += 1
faces = faces.rpartition(',')[0] + ']\n'
uvs = uvs.rpartition(',')[0] + ']\n'
code = code + coords + faces + uvs
code += "c4dmesh = bpy.data.meshes.new('"+name+"_mesh')\nc4dmesh.verts.extend(coords)\nc4dmesh.faces.extend(faces)\n\nob = scn.objects.new(c4dmesh,'"+name+"_obj')\nc4dmesh.flipNormals()\n\nif editmode:\tWindow.EditMode(1)\n\n"
code += "c4dmesh.quadToTriangle()\nc4dmesh.addUVLayer('c4duv')\n"
code += "for f in range(0,"+str(fcount)+"):\n\tc4dmesh.faces[f].uv = uvs[f]\n"
return code
def GetIPOKeys(code):
# store properties for tracks
tracks = op.GetCTracks()
# 0,1,2 = Position, 3,4,5 = Scale, 6,7,8 = Rotation, 9 = PLA
# props = [[lx,f],[ly,f],[lz,f],[sx,f],[sy,f],[sz,f],[rx,f],[ry,f],[rz,f]]
try:
props = []
trackIDs = [3,4,5,6,7,8,0,2,1]
propVals = ['LocX','LocZ','LocY','SizeX','SizeY','SizeZ','RotZ','RotX','RotY']
propIPOs = ['Ipo.OB_LOCX','Ipo.OB_LOCZ','Ipo.OB_LOCY','Ipo.OB_SCALEX','Ipo.OB_SCALEY','Ipo.OB_SCALEY','Ipo.OB_ROTZ','Ipo.OB_ROTX','Ipo.OB_ROTY']
for t in range(0,9):
props.append([[],[]])
curve = tracks[t].GetCurve()
keyCount = curve.GetKeyCount()
for k in range(0,keyCount):
key = curve.GetKey(k)
props[t][0].append(key.GetValue())
props[t][1].append(key.GetTime().GetFrame(fps))
# find the max key
maxProp = max(enumerate(props), key = lambda tup: len(tup[1]))[1][1]
maxKeys = len(maxProp)
# loop through tracks and keys
for key in range(0,maxKeys):
code += "Blender.Set('curframe',"+str(maxProp[key])+")\n"
for track in trackIDs:
if(key < len(props[track][0])):
code += "ob."+propVals[track] + " = " + str(props[track][0][key]) + '\n'
code += 'key = ob.insertIpoKey(' + propIPOs[track] + ')\n'
except:
pass
return code
# mesh/morph animation -> mesh always has the same number of verts
def GetShapeKeys(code):
track = 0;
tracks = op.GetCTracks()
for t in tracks:
if(t.GetName() == 'PLA'): track = t
# track = op.GetCTracks()[9]
if track != 0:
curve = track.GetCurve()
keyCount = curve.GetKeyCount()
verts = []
frames = []
vertsNum = op.GetPointCount()
ctime = doc.GetTime()
for k in range(1,keyCount):
key = curve.GetKey(k)
frames.append(key.GetTime().GetFrame(fps))
c4d.StatusSetBar(100*(k/keyCount))
doc.SetTime(key.GetTime())
c4d.DrawViews( c4d.DA_ONLY_ACTIVE_VIEW|c4d.DA_NO_THREAD|c4d.DA_NO_REDUCTION|c4d.DA_STATICBREAK )
c4dvecs = op.GetPointAll();
blendvecs = []
for v in c4dvecs:
blendvecs.append([v.x*unit,v.z*unit,v.y*unit])
verts.append(blendvecs)
c4d.GeSyncMessage(c4d.EVMSG_TIMECHANGED)
doc.SetTime(ctime)
c4d.EventAdd(c4d.EVENT_ANIMATE)
c4d.StatusClear()
code += '\n\n# shape keys\nverts = ' + str(verts) + '\n'
code += "if(ob.activeShape == 0):\n\tob.insertShapeKey()\n\n"
for f in range(0,len(frames)):
kNum = str(f+1)
code += "if editmode: Window.EditMode(0)\n"
code += "for v in range(0,"+str(vertsNum)+"):\n\tc4dmesh.verts[v].co.x = verts["+str(f)+"][v][0]\n\tc4dmesh.verts[v].co.y = verts["+str(f)+"][v][1]\n\tc4dmesh.verts[v].co.z = verts["+str(f)+"][v][2]\n"
code += "c4dmesh.calcNormals()\n"
code += "ob.insertShapeKey()\n"
code += "if editmode: Window.EditMode(1)\n"
code += "shapeKey = ob.getData().getKey()\n"
code += "newIpo = Ipo.New('Key','newIpo')\n"
code += "if(shapeKey.ipo == None): shapeKey.ipo = newIpo\n"
code += "if(shapeKey.ipo['Key "+kNum+"'] == None): shapeKey.ipo.addCurve('Key "+kNum+"')\n"
if(f == 0): code += "shapeKey.ipo['Key "+kNum+"'].append(BezTriple.New(1.0,0.0,0.0))\n"
if(f > 0): code += "shapeKey.ipo['Key "+kNum+"'].append(BezTriple.New("+str(float(frames[f-1]))+",0.0,0.0))\n"
code += "shapeKey.ipo['Key "+kNum+"'].append(BezTriple.New("+str(float(frames[f]))+",1.0,0.0))\n"
else:
#no PLA tracks, look for morph tag
vertsNum = op.GetPointCount()
for tag in op.GetTags():
if tag.GetType() == 1019633:
# print tag[sy.MORPHTAG_MORPHS]
'''
work around
1. store first key for each track curve
2. set the first key value to 1 for the 1st track and 0 for the others
3. store the mesh vertices -> track name verts = []
4. after all track verts are stored, restore the original values
5. write the the curve keys for blender shape keys
'''
code += "if(ob.activeShape == 0):\n\tob.insertShapeKey()\n\n"
tc = 0
tcs = str(tc+1)
for track in tag.GetCTracks():
curve = track.GetCurve()
value = curve.GetKey(0).GetValue()
curve.GetKey(0).SetValue(curve,1.0)
print track.GetName()
doc.SetTime(c4d.BaseTime(0, fps))
c4d.DrawViews( c4d.DA_ONLY_ACTIVE_VIEW|c4d.DA_NO_THREAD|c4d.DA_NO_REDUCTION|c4d.DA_STATICBREAK )
c4dvecs = op.GetPointAll();
blendverts = []
for v in c4dvecs:
blendverts.append([v.x*unit,v.z*unit,v.y*unit])
code += "Key"+tcs+"verts = " + str(blendverts)+"\n"
code += "if editmode: Window.EditMode(0)\n"
code += "for v in range(0,"+str(vertsNum)+"):\n\tc4dmesh.verts[v].co.x = Key"+tcs+"verts[v][0]\n\tc4dmesh.verts[v].co.y = Key"+tcs+"verts[v][1]\n\tc4dmesh.verts[v].co.z = Key"+tcs+"verts[v][2]\n"
code += "c4dmesh.calcNormals()\n"
code += "ob.insertShapeKey()\n"
code += "if editmode: Window.EditMode(1)\n"
code += "shapeKey = ob.getData().getKey()\n"
code += "newIpo = Ipo.New('Key','newIpo')\n"
code += "if(shapeKey.ipo == None): shapeKey.ipo = newIpo\n"
code += "if(shapeKey.ipo['Key "+tcs+"'] == None): shapeKey.ipo.addCurve('Key "+tcs+"')\n"
print op.GetPointAll()
c4d.GeSyncMessage(c4d.EVMSG_TIMECHANGED)
curve.GetKey(0).SetValue(curve,value)
keyCount = curve.GetKeyCount()
for k in range(0,keyCount):
key = curve.GetKey(k)
value = key.GetValue()
frame = key.GetTime().GetFrame(fps)
code += "shapeKey.ipo['Key "+tcs+"'].append(BezTriple.New("+str(float(frame))+","+str(value)+",0.0))\n"
tc += 1
tcs = str(tc+1)
c4d.EventAdd(c4d.EVENT_ANIMATE)
return code
def GetCamera(code):
bd = doc.GetRenderBaseDraw()
cp = bd.GetSceneCamera(doc)
if cp is None: cp = bd.GetEditorCamera()
fov = Deg(cp[sy.CAMERAOBJECT_FOV])
pos = cp.GetPos()
rot = cp.GetRot()
code += "\nc4dCam = Camera.New('persp','c4d_"+cp.GetName()+"')\nc4dCam.drawPassepartout = True\nc4dCam.alpha = 0.5\nc4dCam.drawLimits = 1\nc4dCam.dofDist = 100.0\n"
code += "c4dCam.angle = "+str(fov)+"\nc4dCamLens = c4dCam.lens\nc4dCam.lens = c4dCamLens\nWindow.RedrawAll()\nc4dCamObj = scn.objects.new(c4dCam)\n"
code += "c4dCamObj.setLocation("+str([pos.x,pos.z,pos.y])+")\n"
code += "c4dCamObj.setEuler("+str([rot.x+(math.pi*.5),rot.y,rot.z])+")\n"
code += "scn.setCurrentCamera(c4dCamObj)\n"
return code
code = GetMesh(code)
code = GetIPOKeys(code)
code = GetShapeKeys(code)
code = GetCamera(code)
file = open(doc.GetDocumentPath()+'/'+op.GetName()+'_export.py','w')
file.write(code)
file.close()
BlenderExport()
它支持 ipo 键（位置、旋转、缩放）。点级动画转换为多个形状键。变形标签动画保存得很好。
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