使用Python API获取顶点权重骨骼计数

Question

我想使用Python API来获得骨架模式是顶点权重骨骼计数，如下所示：

from pymxs import runtime as rt
import MaxPlus
max_root = MaxPlus.Core.GetRootNode()
mesh_node = max_root.GetChild(0)
#there is only one modifier  the skin modifier 
mod = mesh_node.GetModifier(0)  
#get the first vertex  weight count
weight_count = rt.skinOps.GetVertexWeightCount(mod, 0)

我收到此错误：

Unable to convert: Animatable(Skin) to type: Modifier