Hi Wojtek,
Problem affects DrawArrays with TriangleStrips and TriangleFans as
primitives. Also happens when DrawArrays are precompiled into display
lists. Apllication must be run multithreaded with main thread doing
window / GL context setup and worker thread doing OpenGL rendering.
Problem could be relaxed when wglMakeCurrent gets called before each
frame rendering. I noticed that artifacts appeared when wglMakeCurrent
was called only once while worker rendering thread initialization . When
wglMakeCurrent was called every frame artifacts did not appear.
Wow, nice sleuthing Mr. Holmes :-) Any chance you could devise a patch
we could test, and see if it has a large adverse impact on performance?
PS. I have also some interesting observations regarding multithreaded /
multimonitor / FBO usage. But its a subject for separate email.
I look forward to it, that's a big issue for us too.
Thanks for all your work,
J-S
--
______________________________________________________
Jean-Sebastien Guay [EMAIL PROTECTED]
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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