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Thread: Opengl mode problem

  1. #1

    Default Opengl mode problem

    I found a problem,
    In the OpenGL mode when the sprite image size more than a certain size, it will throw exception in some machines.
    E.g. I have a 9600*300 PNG images for sprite , on some the computer with integrated graphics will cause GL_INVALID_VALUE errors when flip.
    when i changed png size to 4800 * 600 , Although not all computer, but most of them can work properly.
    Last edited by kyelin; 07-17-2014 at 10:12 AM.

  2. #2
    ClanLib Developer
    Join Date
    May 2007
    Posts
    1,824

    Default

    Sprite it too large.

    4096x4096 is probably safe to use these days. I would not use any larger for width or height.

    You can use GL_MAX_TEXTURE_SIZE​ to determine the maximum texture size

    Code:
    	clan::OpenGL::set_active()
    	clan::GLint max = 0;
    	clan::glGetIntegerv(clan::GL_MAX_TEXTURE_SIZE​ , &max);

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