> Also it might be quicker to use CSG objects instead of triangles. I'm not
sure
> how pov implements triangle meshes (I never use them). You could just do
the
> intersection of 4 planes. In fact I just worked out the maths so I can't
resist
> putting it here :)
>
> #declare Tetrahedron =
>     intersection {
>         plane { <1,1,1>, 1 }
>         plane { <-1,1,-1>, 1 }
>         plane { <1,-1,-1>, 1 }
>         plane { <-1,-1,1>, 1 }
>     }
>
> That should do it.
> Though it's gone midnight and I might have made a glaring error :)

Isn't that how the tetrahedron is defined in shapes.inc?  I didn't check it,
but I believe all geometrical solids are defined using intersections of
planes, so all you need is #include "shapes.inc" - all this math for nothing
;-)

Zero

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