wanfang的 Google 边栏评注

Panda3D 中有两种三维几何图形：Model 和 Actor ，Model 是不会活动的几何图形，而 Actor 可以活动。

主旨：

"There are two classes in Panda3D for 3D Geometry: the 'Model', which is for non-animated geometry, and the 'Actor', which is for animated geometry."
- Panda3D Manual （查看 Google 边栏评注）