On Thu, 11 Mar 1999 18:08:17 -0500, Carl Bartels 
	<cab### [at] bravo436chemmcgillca> wrote:
>Would it be possible to use this to make an inside for a mesh (even an
>open one?)  That way you could test if you are inside the prism of more
>that one triangle and that should be enough to be inside your mesh, at
>least for a simple mesh.  Would have to sit down and scratch my head for
>a bit to see how to treat complicated shapes.  I just think that the
>normals method is a nice way to go.

Consider a mesh of a bowl.  Any point in the part where the Chocolate 
Frosted Sugar Bombs go would be considered "inside" by this method, as 
would a good number of points in the environment, including some below 
the surface of the table (due to the rim of the bowl).

Even convex polyhedra would have problems.  Consider a football (without
seams.)  It's convex, but the intersections of the prisms associated with 
triangles near opposite ends are outside the surface of the football.

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