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is the visibility of a Polygon[] exposed?

Hello Mathematica UG:

Is it possible for my code to tell if a Polygon (in my graphics
object) is visible?

I assume that this is based upon (or is affected by) the ViewPoint->

Further, I assume that the kernel is deriving this somewhere to do
rendering. Do I have any access to this?

If I evaluate:

q = PolyhedronData["SnubCube"]

I can see the component Polygon[] and GraphicsComplex[] objects that
make up the Graphics3D[]. I want to make a code decision based on
whether a face is showing.


Regards..Roger W.

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