Thanks for the input. I first tried using GL_TRIANGLES, incorrect output was 2 triangles. Then I read Glenn's response and tried my code on a different computer, and it worked fine.
So now I'm left wondering what is wrong with my computer? I deleted osg and rebuilt ver 2.2.0, updated the driver for my Nvidia GeForce 8600GTS, still no success. Are their any known issues simialr to this? I've attached screen shots of setBoundaryOnly=false, and using GL_Triangles with no tessellation . Other specs on my computer: Intel core 2 quad, 4gb ram, Windows XP 32bit, 2x19" NEC LCDs Thanks, Rick
<<attachment: BoundaryOnly_False.gif>>
<<attachment: Triangles.gif>>
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