[Radiance-general] Instances

[Lars O. Grobe]

Hi Lucio!

> Jack, you were talking about a frozen octree... would this help
> saving memory? What would be, memory wise the difference between a
> frozen octree and a non-frozen one? Or, in other words, why do you
> suggest it should be a frozen one?

The difference between a frozen octree and a "regular" octree is, that 
the frozen one contains all geometry that is only referenced by a 
regular octree. Thus if you compile a scene before running rtrace or 
rpict on it, a regular octree is fine, while, if you want to build up a 
library of octree-objects, you would probably prefer this library to be 
independent of any other files and thus use frozen octrees. Another 
advantage of frozen octrees here is that speed.

Cheers, Lars.

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