Does it repro with other video cards?
Are you using any extensions (i.e. VAR)?
"Funky changing results" plus glDrawElements could mean that you are
modifying the verts in memory before OpenGL has a chance to access
them. With VAR on, OpenGL doesn't make a copy of the elements; it's
your job to make sure they stick around until the draw has completed.
(You can know whether the draw is done or not by adding fences, or
glFlush can be used as a last resort.)
I get funky, changing results. But if I replace the single line with
this code:
unsigned int *el;
el=mdl->gl_element_list;
glBegin(GL_TRIANGLES);
for (i=0;i!=mdl->ntrig;i++) {
glArrayElement(*el++);
glArrayElement(*el++);
glArrayElement(*el++);
}
glEnd();
Am I just doing something stupid? If I send the elements one by one,
it works right. If I send them in a group, they are corrupted. Is
this a known problem?
[>] Brian
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