[away3d] Re: Selective rendering

[Li]

Whenever view.forceUpdate is not set to true, any object3ds with
obj3d.ownCanvas = true whose transformations have not changed in regard to
the camera's transformation -that is, that look the same to the camera as in
the last render cycle-, and whose materials haven't updated, will not be
rendered in the current cycle. That's the engine's tri-caching system.