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Thread: Texture download performance

  1. #1
    Junior Member Newbie
    Join Date
    Apr 2000
    Location
    New Jersey, USA
    Posts
    23

    Texture download performance

    Hi there,

    I'm experiencing bad performance for texture downloading. I don't know whether this is caused by h/w or s/w.

    Can anyone measure download time for a various sizes of textures,
    using glTexSubImage2D. Say 1024x768, 720x576, 640x480?

    For 720x576 I have noticed times about 40-45 ms with a GeForce2
    and 700Mhz Pentium III.

    If any Windows-guy could test the same hardware with both OpenGL
    and DirectX I would be very thankful.

    regards,

    Patric

  2. #2
    Member Regular Contributor
    Join Date
    Sep 2000
    Location
    Vancouver BC Canada
    Posts
    418

    Re: Texture download performance

    You'll probably be better off if your
    texture widths and heights are powers of 2.

    Originally posted by plg:
    Hi there,

    I'm experiencing bad performance for texture downloading. I don't know whether this is caused by h/w or s/w.

    Can anyone measure download time for a various sizes of textures,
    using glTexSubImage2D. Say 1024x768, 720x576, 640x480?

    For 720x576 I have noticed times about 40-45 ms with a GeForce2
    and 700Mhz Pentium III.

    If any Windows-guy could test the same hardware with both OpenGL
    and DirectX I would be very thankful.

    regards,

    Patric

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