David Wilkinson wrote:
> 
> Marc,
> I had a look at the code in your gear.inc file and the major difference between your
> method and mine seems to be that you create the gear tooth with a union of 11
prisms, each
> of 5 points, whereas I calculate 22 points and make a tooth from just one prism.
> This gives ten straight line facets on each flank and although I think is good
enough for
> the purpose, I have tried doubling the number of points and the rendering time only
> increases to 40 secs.
> I don't think manual bounding will make any difference as the automatic bounding in
POV is
> now pretty good.
> David

Hi David!

This explains the differences. 
The CSG adds a lot of extra time. 
Maybe I redo my stuff. 

Thank you,

Marc

-- 
Marc Schimmler

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