Jan Dvorak wrote:

> -such object will probably be traced by every ray. This has performance 
> implications of using complicated objects (an unlikely need)

One of my models, in its original form, used several dozen objects that 
were each made by intersecting twenty-six plane objects.  Each such 
object was an infinite object.  Putting a bound around each of them 
reduced rendering times by quite a bit, and when I turned them into mesh 
objects rendering speeded up even more.

Regards,
John

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