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Thread: glBlend issues

  1. #1

    glBlend issues


    I am having problems with drawing glDrawPixels for RGB/RGBA 16 bits (per channel) images. This is using a NVIDIA Quadro (on Windows XP)

    The following is quite fast
    glDrawPixels(width, height, GL_RGBA, GL_UNSIGNED_SHORT, &raster[0]);

    But with blending turned on the performance is really slooow. I thought I could get decent performance with a Quadro!

    Are there any workarounds?

    Thanks in advance!

  2. #2
    Senior Member Regular Contributor
    Join Date
    Apr 2002
    St. Louis, MO USA

    Re: glBlend issues

    Yes there is a workaround. Use texture maps instead of glDrawPixels.

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