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Thread: ATI and glGenerateMipmap not working?

  1. #1
    Junior Member Regular Contributor Mars_999's Avatar
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    ATI and glGenerateMipmap not working?

    I have tried this on Nvidia and works great. ATI I have no luck. I am using glGenerateMipmap to generate mipmaps for simple 2D textures and isn't working at all. Anyone else have this issue? If not anyone know of someone at ATI who I can forward this to? Please don't tell me a bug list report as I never had a reply to anything I have sent...

    Thanks

  2. #2
    Junior Member Regular Contributor Mars_999's Avatar
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    Re: ATI and glGenerateMipmap not working?

    I guess you need to call

    glTexImage2D()
    glEnable(GL_TEXURE_2D)
    glGenerateMipmapEXT()

    what a joke, on Nvidia no need for a glEnable() call and ATI you need to. OH well more fun I guess!

  3. #3
    Advanced Member Frequent Contributor scratt's Avatar
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    Re: ATI and glGenerateMipmap not working?

    FWIW I thought you had to enable GL_TEXTURE_xD to use those commands... Seems more like a marginally useful bug on NVidia's end.

    btw if you join the MacOpenGL mailing list I know that a fair few of the ATI guys monitor that list and do reply very quickly to bug reports etc.

  4. #4
    Junior Member Regular Contributor Mars_999's Avatar
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    Re: ATI and glGenerateMipmap not working?

    Hey scratt, I will look into it. Thanks

  5. #5
    Advanced Member Frequent Contributor scratt's Avatar
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    Re: ATI and glGenerateMipmap not working?

    Re: The email list...

    Now that you've had it confirmed as a bug then it's worth sending a report to BugReporter at Apple. I'd attach a copy of the email you have to the report also.


  6. #6
    Junior Member Regular Contributor Mars_999's Avatar
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    Re: ATI and glGenerateMipmap not working?

    Yeah I will get to that soon I hope!!

    BTW you moving to GL3 when it comes to OSX right away?

  7. #7
    Advanced Member Frequent Contributor scratt's Avatar
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    Re: ATI and glGenerateMipmap not working?

    Absolutely. I am also very much looking forward to CL.

  8. #8
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    Re: ATI and glGenerateMipmap not working?

    I'd like to add that on NVidia (GF8400, GF6600 - these I tested), when getting back from minimzed mode to full-screen mode, mipmaps are not generated. Looks like they're "lost" (like in D3D).

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