clipka <ano### [at] anonymousorg> wrote:

> The background is that in order to test whether a point P is inside a
> mesh or not, POV-Ray shoots a ray in the direction specified by
> `inside_vector`, and counts the number of intersections with the mesh.
> If it finds an odd number of intersections in that direction, P is
> considered inside, otherwise it is considered outside.

I'd be interested in seeing a diagram of this - and I thought about coding one
up myself - potentially for use in the docs (since this comes up a lot)

But the information that I need to do that is:
POV-ray shoots a ray in the direction specified by `inside_vector` _FROM_ ---
where?

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