Thomas and Bill,
Raul has done some terrific sleuthing and may have found a key problem.
He found that the shader.ijs needs the following line to work properly.
vbo=: 2 {:: glGenBuffers 2;2#_1
Another key problem I stumbled on is vertex sequence for the tetrahedron.
Apparently, just winding is not enough to set the sequence as
anticlockwise. In addition the first vertex on each face has to be
"adjacent" to the last vertex of the previous face. With this adjustment,
it appears that openGL handles 3-element rgb's well.
The following sequence seems to work. But I can't be entirely sure because
(coincidentally?) when I press F4 to see the dynamic display, one of the
faces never shows. I could use some ideas about how to fix that.
vertexData=: 1&fc ,1 2 0 0 2 3 3 2 1 1 0 3{4 3$, %&10, 0&". ;._2 [ 0 : 0
_3 _9 _4
3 _9 _4
0 0 2
0 8 _4
)
Please check my statements.
Thanks, to all,
--
(B=)
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