ad51edd3bf
Added Mesh .key .removeAllKeys() and .insertKey() for MDD support (was using NMesh just for keys before) Since this is aparently an experemental feature in NMesh we may want to change this.
125 lines
3.4 KiB
Python
125 lines
3.4 KiB
Python
#!BPY
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"""
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Name: 'Save Mesh RVKs as MDD'
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Blender: 242
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Group: 'Animation'
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Tooltip: 'baked vertex animation fromo selected model.'
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"""
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__author__ = "Bill L.Nieuwendorp"
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__bpydoc__ = """\
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This script Exports Lightwaves MotionDesigner format.
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The .mdd format has become quite a popular Pipeline format<br>
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for moving animations from package to package.
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"""
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# mdd export
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#
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#
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#
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# Warning if the vertex order or vertex count differs from frame to frame
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# The script will fail because the resulting file would be an invalid mdd file.
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#
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# mdd files should only be applied to the the origonating model with the origonal vert order
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#
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#Please send any fixes,updates,bugs to Slow67_at_Gmail.com
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#Bill Niewuendorp
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import Blender
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from Blender import *
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import BPyMessages
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try:
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from struct import pack
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except:
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pack = None
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def mdd_export(filepath, ob, PREF_STARTFRAME, PREF_ENDFRAME, PREF_FPS):
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Window.EditMode(0)
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Blender.Window.WaitCursor(1)
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mesh_orig = ob.getData(mesh=1)
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#Flip y and z matrix
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mat_flip= Mathutils.Matrix(\
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[1,0,0,0],\
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[0,0,1,0],\
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[0,-1,0,0],\
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[0,0,0,1],\
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)
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me_tmp = Mesh.New() # container mesh
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numverts = len(mesh_orig.verts)
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numframes = PREF_ENDFRAME-PREF_STARTFRAME+1
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PREF_FPS= float(PREF_FPS)
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f = open(filepath, 'wb') #no Errors yet:Safe to create file
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# Write the header
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f.write(pack(">2i", numframes-1, numverts))
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# Write the frame times (should we use the time IPO??)
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f.write( pack(">%df" % (numframes-1), *[frame/PREF_FPS for frame in xrange(numframes-1)]) ) # seconds
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Blender.Set('curframe', PREF_STARTFRAME)
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for frame in xrange(numframes+1):
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Blender.Set('curframe', frame)
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# Blender.Window.RedrawAll() # not needed
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me_tmp.getFromObject(ob.name)
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if len(me_tmp.verts) != numverts:
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Blender.Draw.PupMenu('Error%t|Number of verts has changed during animation|cannot export')
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Blender.Window.WaitCursor(0)
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f.close() # should we zero?
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return
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me_tmp.transform(ob.matrixWorld * mat_flip)
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# Write the vertex data
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f.write(pack(">%df" % (numverts*3), *[axis for v in me_tmp.verts for axis in v.co]))
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me_tmp.verts= None
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f.close()
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print'MDD Exported: %s frames:%d\n'% (filepath, numframes-1)
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Blender.Window.WaitCursor(0)
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def mdd_export_ui(filepath):
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# Dont overwrite
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if not BPyMessages.Warning_SaveOver(filepath):
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return
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scn= Scene.GetCurrent()
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ob_act= scn.objects.active
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if not ob_act or ob_act.type != 'Mesh':
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BPyMessages.Error_NoMeshActive()
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ctx = scn.getRenderingContext()
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orig_frame = Blender.Get('curframe')
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PREF_STARTFRAME= Blender.Draw.Create(ctx.startFrame())
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PREF_ENDFRAME= Blender.Draw.Create(ctx.endFrame())
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PREF_FPS= Blender.Draw.Create(ctx.fps)
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block = [\
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("Start Frame: ", PREF_STARTFRAME, 1, 30000, "Start Bake from what frame?: Default 1"),\
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("End Frame: ", PREF_ENDFRAME, 1, 30000, "End Bake on what Frame?"),\
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("FPS: ", PREF_FPS, 1, 100, "Frames per second")\
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]
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PREF_STARTFRAME, PREF_ENDFRAME=\
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min(PREF_STARTFRAME.val, PREF_ENDFRAME.val),\
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max(PREF_STARTFRAME.val, PREF_ENDFRAME.val)
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if not Blender.Draw.PupBlock("Export MDD", block):
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return
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print (filepath, ob_act, PREF_STARTFRAME, PREF_ENDFRAME, PREF_FPS.val)
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mdd_export(filepath, ob_act, PREF_STARTFRAME, PREF_ENDFRAME, PREF_FPS.val)
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Blender.Set('curframe', orig_frame)
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if __name__=='__main__':
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if not pack:
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Draw.PupMenu('Error%t|This script requires a full python install')
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Blender.Window.FileSelector(mdd_export_ui, 'EXPORT MDD', sys.makename(ext='.mdd')) |