Efficient point rendering

[simonfarussell]

I'm rendering a big point cloud from a BGEO file.
The only thing that changes is the camera animation.

If I use the interactive renderer then the scene updates super quick and renders at about 10-20 secs a frame. If I render using a mantra ROP it takes about a 60-70 seconds. I'm assuming it reloads the geometry every frame (or something!?).

Is there a way to get something like the interactive render speeds in Mantra?

I've tried using delayed load and disk primitives and also various renderers in Mantra (e.g. micropoly, physical) without much success. There is no lighting or any other vex or vops or anything going on. Simple constant shader.

Thanks

Simon