Hi...

I was thinking about a way to specify an interior for mesh/mesh2 or
polygonal objects. My incoming data will be a closed polygonal model or a
triangle mesh (I don't know for sure yet) - it shall resemble a solid
object. I will need refraction, attenuation and I guess dispersion to work
properly in it, so that the rays behaves like in a real solid object.

Is the only way to do it to change the mesh/meh2 or polygon - code in a way
that there can be a interior defined for it? - This would include a test if
the ray is inside entering or leaving the object, right? I hope for an
easier way, but I don't know where to start looking...

Can anybody give me a hint?

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