Yadgar wrote:
> 
> Hi Tracers!
> 
> I recently started to build an animation containing several thousand
> primitives in eight CSGs (only three levels deep nested), and when I
> started rendering, I was somewhat surprised by the slow progress - about
> 
> 30 minutes for an image of 400 by 300 pixels, on an AMD K6-II running at
> 
> 380 MHz!
> 
> Then, I started to think of methods to speed up the rendering... but
> whether I disabled auto-bounding or not, it did not work faster. How can
> 
> I speed it up unless I don't use a lower quality level?

Try to change the hierarchy in which the different parts of the CSG are
put together.  From what I understand of the POV innards, is that
differences and intersections are killers.  For example, creating an
I-beam consisting of the union of three slender boxes should be faster
than if you had the difference of a square box and the two sides.

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