def set_weights(skin, data, prune=False):
"""Set an skin cluster with weight data.
Args:
skin: Skin cluster node or mobject
data: Weight data specifically in the format `get_weights` returns
prune: Remove unused influences from the skin cluster
Returns:
None
"""
influences = get_skin_influences(skin)
influences_remapped = {v: k for k, v in influences.items()}
mfn_skin = oma2.MFnSkinCluster(skin)
for vert, weights in data:
weight_list_index_attr = '{skincluster}.weightList[{vertId}]'.format(
skincluster=mfn_skin.name(), vertId=vert)
for influence, weight_value in weights:
influence_logical_index = influences_remapped[influence]
weights_attr = '.weights[{influenceId}]'.format(
influenceId=influence_logical_index)
cmds.setAttr(weight_list_index_attr + weights_attr, weight_value)
if prune:
skin_name = om2.MFnDependencyNode(skin).name()
skin_geo = om2.MFnDependencyNode(
oma2.MFnGeometryFilter(skin).getOutputGeometry()[0]).name()
cmds.skinPercent(skin_name, skin_geo, nrm=False, prw=0)
def getBaseGeometryIndexFromDeformer(deformer, base):
"""
:param deformer:
:param base:
:return:
"""
mDeformObj = transformUtils.getmObject(deformer)
if cmds.objectType(base) == "transform":
base = cmds.listRelatives(base, s=True, ni=True, pa=True)[0]
baseObj = transformUtils.getmObject(base)
deformFn = OpenMayaAnim2.MFnGeometryFilter(mDeformObj)
geoIndex = deformFn.indexForOutputShape(baseObj)
return geoIndex