In article <slr### [at] fwicom>, ron### [at] povrayorg 
wrote:

> But you can't.  POV only knows to calculate media because it thinks it's
> leaving an area of one media and entering an area of the other.  There 
> is no way to distinguish between the case you mention and the case of 
> hitting another object completely enclosed in the first object,

Ah, I see what you mean...it would only work with well-behaved meshes 
that don't have any portion of the surface of other objects in their 
interior...that is a problem.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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