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

> This is a commonly held, though erroneous, belief.

Not so erroneous, unless you're talking about media without a container. 
As I understand it, you can use it in meshes, but it uses the number of 
intersections it has encountered to decide whether or not it is inside. 
Meshes with holes or other "odd" formations will not render as expected, 
because they don't have defined boundaries for the media sampling.

-- 
 -- 
Christopher James Huff <chr### [at] maccom>

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