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Thread: Spec. clarification: gl_VertexID, is the generation by glDrawElements optional?

  1. #11
    Senior Member OpenGL Pro
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    Are we talking Radeons or GeForces here? 5xxx and 7xxx are ambigous.

  2. #12
    Junior Member Newbie
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    Dec 2011
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    Radeon HD5700 OK
    Radeon HD6600 OK (But different OS and driver)
    Radeon HD7970 Not OK

  3. #13
    Senior Member OpenGL Pro
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    Got some source code? I have a 7970 on my current machine and I'd like to test this if possible.

  4. #14
    Senior Member OpenGL Guru
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    Radeon HD5700 OK
    Radeon HD6600 OK (But different OS and driver)
    Radeon HD7970 Not OK
    At first I was going to say that that's surprising. But then I remembered that the HD-7xxx line uses very different hardware from the HD-6600. So this seems very much like a driver bug.

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