122 lines
3.5 KiB
Python
122 lines
3.5 KiB
Python
#!BPY
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"""
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Name: 'Clean Weight...'
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Blender: 245
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Group: 'WeightPaint'
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Tooltip: 'Removed verts from groups below a weight limit.'
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"""
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__author__ = "Campbell Barton aka ideasman42"
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__url__ = ["www.blender.org", "blenderartists.org", "www.python.org"]
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__version__ = "0.1"
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__bpydoc__ = """\
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Clean Weight
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This Script is to be used only in weight paint mode,
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It removes very low weighted verts from the current group with a weight option.
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"""
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# ***** BEGIN GPL LICENSE BLOCK *****
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#
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# Script copyright (C) Campbell J Barton
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ***** END GPL LICENCE BLOCK *****
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# --------------------------------------------------------------------------
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from Blender import Scene, Draw, Object
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import BPyMesh
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def weightClean(me, PREF_THRESH, PREF_KEEP_SINGLE, PREF_OTHER_GROUPS):
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groupNames, vWeightDict= BPyMesh.meshWeight2Dict(me)
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act_group= me.activeGroup
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rem_count = 0
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if PREF_OTHER_GROUPS:
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for wd in vWeightDict:
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l = len(wd)
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if not PREF_KEEP_SINGLE or l > 1:
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# cant use iteritems because the dict is having items removed
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for group in wd.keys():
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w= wd[group]
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if w <= PREF_THRESH:
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# small weight, remove.
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del wd[group]
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rem_count +=1
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l-=1
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if PREF_KEEP_SINGLE and l == 1:
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break
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else:
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for wd in vWeightDict:
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if not PREF_KEEP_SINGLE or len(wd) > 1:
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try:
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w= wd[act_group]
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if w <= PREF_THRESH:
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# small weight, remove.
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del wd[act_group]
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rem_count +=1
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except:
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pass
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# Copy weights back to the mesh.
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BPyMesh.dict2MeshWeight(me, groupNames, vWeightDict)
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return rem_count
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def main():
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scn= Scene.GetCurrent()
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ob= scn.objects.active
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if not ob or ob.type != 'Mesh':
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Draw.PupMenu('Error, no active mesh object, aborting.')
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return
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me= ob.getData(mesh=1)
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PREF_PEAKWEIGHT= Draw.Create(0.001)
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PREF_KEEP_SINGLE= Draw.Create(1)
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PREF_OTHER_GROUPS= Draw.Create(0)
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pup_block= [\
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('Peak Weight:', PREF_PEAKWEIGHT, 0.005, 1.0, 'Remove verts from groups below this weight.'),\
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('All Other Groups', PREF_OTHER_GROUPS, 'Clean all groups, not just the current one.'),\
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('Keep Single User', PREF_KEEP_SINGLE, 'Keep verts in at least 1 group.'),\
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]
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if not Draw.PupBlock('Clean Selected Meshes...', pup_block):
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return
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rem_count = weightClean(me, PREF_PEAKWEIGHT.val, PREF_KEEP_SINGLE.val, PREF_OTHER_GROUPS.val)
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# Run on entire blend file. usefull sometimes but dont let users do it.
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'''
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rem_count = 0
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for ob in Object.Get():
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if ob.type != 'Mesh':
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continue
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me= ob.getData(mesh=1)
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rem_count += weightClean(me, PREF_PEAKWEIGHT.val, PREF_KEEP_SINGLE.val, PREF_OTHER_GROUPS.val)
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'''
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Draw.PupMenu('Removed %i verts from groups' % rem_count)
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if __name__=='__main__':
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main()
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