def get_deformer_fn(object_name=""):
"""
get a blendshape deformer fn
:param object_name: <str> object name to get get blendShapeDeformer function set from.
:return: <OpenMaya.MFnBlendShapeDeformer> object type.
"""
m_blend_obj = None
if object_utils.is_transform(object_name):
shape_obj = object_utils.get_shape_name(object_name)[0]
m_blend_obj = get_connected_blendshape(shape_obj)[0]
elif is_blendshape(object_name):
m_blend_obj = object_utils.get_m_obj(object_name)
return OpenMayaAnim.MFnBlendShapeDeformer(m_blend_obj)
def create_blendshape(mesh_objects, name=""):
"""
creates a new blendShape from the array of mesh objects provided
:param mesh_objects: <tuple> array of mesh shapes.
:param name: <str> name of the blendshape.
:return: <OpenMayaAnim.MFnBlendShapeDeformer>
"""
blend_fn = OpenMayaAnim.MFnBlendShapeDeformer()
if isinstance(mesh_objects, (str, unicode)):
mesh_obj = object_utils.get_m_obj(mesh_objects)
blend_fn.create(mesh_obj, origin, normal_chain)
elif len(mesh_objects) > 1 and isinstance(mesh_objects, (tuple, list)):
mesh_obj_array = object_utils.get_m_obj_array(mesh_objects)
blend_fn.create(mesh_obj_array, origin, normal_chain)
else:
raise ValueError("Could not create blendshape.")
if name:
object_utils.rename_node(blend_fn.object(), name)
return blend_fn
