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Thread: Questions on Extions

  1. #1
    Junior Member Newbie
    Join Date
    Dec 2003
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    Beijing, China
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    17

    Questions on Extions

    I want to use GL_EXT_separate_specular_color, it is not a vary advanced OpenGL extension feature.

    I use such code:
    extensions = glGetString(GL_EXTENSIONS);
    to determine if the OpenGL implementation really supports this extension.
    the return string is "GL_WIN_swap_hint GL_EXT_bgra GLEXT_paletted_texture", which means GL_EXT_separate_specular_color is not supported!
    My graphic card is Radeon 9600, a relative new card. Why doen't it support such a simple feature?
    What should I do?

    Any suggestion will be great appreciated!

    Doggle

  2. #2
    Member Contributor
    Join Date
    Feb 2003
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    Mitishy
    Posts
    59

    Re: Questions on Extions

    if that's all you see, then your initialization code is wrong somewhere! Looks like your app inits opengl for software rendering mode...
    here's what i pass to PIXELFORMATDESCRIPTOR
    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL;

  3. #3
    Junior Member Newbie
    Join Date
    Dec 2003
    Location
    Beijing, China
    Posts
    17

    Re: Questions on Extions

    Originally posted by gvm:
    if that's all you see, then your initialization code is wrong somewhere! Looks like your app inits opengl for software rendering mode...
    here's what i pass to PIXELFORMATDESCRIPTOR
    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL;
    Dear gvm,
    Thank you very much! Your words is so correct. I set pfd.dwFlags as you did, and it works!
    You helped me a lot.

    Best wishes,
    Doggle

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