mesh.py 文件源码

def new(name, naming_method=0) :
    if name not in bpy.data.meshes or naming_method == 0:
        return bpy.data.meshes.new(name=name)

    if naming_method == 1 :
        return bpy.data.meshes[name]

    if naming_method == 2 :
        me = bpy.data.meshes.new(name=name)
        me.name = name
        return me

    # naming_method = 3 : replace, keep users
    me = bpy.data.meshes[name]
    bm = bmesh.new()
    bm.to_mesh(me)
    return me

## material listed in matslots must exist before creation of material slots