[Bf-committers] arbitrary point-inside-manifold-mesh test?

[Ed Halley]

I don't see any current code in the codebase that tests if an arbitrary 
point is inside a given manifold mesh.  Is this correct?

If there is no such test, then it seems to me that the appropriate 
algorithm would be some ray-like thing, like 2d rasterizers, where a ray 
in an arbitrary direction would have an odd number of face intersections 
to escape a mesh, but an even number if the ray started from outside the 
mesh.  Any better ideas?

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