I have a polyhderon centered at the origin.
I defined the PolygonAttributes of the appearance to be
A.setPolygonAttributes(new PolygonAttributes(PolygonAttributes.POLYGON_FILL,
PolygonAttributes.CULL_NONE,
0.01f, false));
I then set the front cull distance to be between the view platform and
the polyhedron.
As I zoom in on the polyhedron, the front cull plane will start to
intersect the polyhedron and cut away at it, revealing the inside. Its
a nice effect.
But, the inside is all gray. It doesn't have the same color (or shades of
the same color) as the outside.
I thought by setting the PolygonAttributes to be PolygonAttributes.CULL_NONE
that both sides of the polygons making up the polyhedron would have color.
It
doesn't work....
So, how should I define the polyhedron so both inside and outside have the
same color?
I thought about doing some kind of norm vector inversion, but this would
result
in the outside of the polyhedron loosing its color, wouldn't it?
And I thought about defining 2 Polyhedra; one with its normals pointing out
and one
with its normals pointing in. But that's an ugly thing to do!
So how should I do it?
Bob Gray
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