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From OpenGL 3.0 to OpenGL 4.1

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Mephistole Posted messages 55 Registration date   Status Member Last intervention   -  
Mephistole Posted messages 55 Registration date   Status Member Last intervention   -
Hello,

I would like to know how you go from OpenGL version 3.0 to its version 4.1?

Thanks for your answers.

1 answer

  1.
    ElementW Posted messages 5690 Status Contributor 1 293
     
    Hi,

    by updating your graphics stack, namely drivers, Mesa (if using free drivers) as well as X11/Xorg. In general, by updating your system.

    If the OpenGL version does not increase after an update, it means your graphics hardware on your PC physically does not support a higher OpenGL version.

    What is your graphics card/your chipset?

    (For precise information, copy the result of the command 
    lspci -v | grep -Ei "vga|3d"
    and 
    glxinfo | grep -E " Vendor| Device"
    here)
    --
    from human import idiocy
    del idiocy
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    1. Mephistole Posted messages 55 Registration date   Status Member Last intervention   1
       
      My graphics card is an Intel HD Graphics 4000. And with the command lines it shows me "Intel Corporation 3rd Gen Core processor Graphics Controller" and that the GLX extension is manually [listed] on the screen.
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      1. ElementW Posted messages 5690 Status Contributor 1 293 > Mephistole Posted messages 55 Registration date   Status Member Last intervention  
         
        The HD4000 (Intel Gen3) are limited to OpenGL 3.3 at most (but they support a large portion of the extensions needed for GL 4+, though not all, so the chipset is "stuck" at 3.3).

        They lack hardware support for fp64 (64-bit floating-point numbers, extensions GL_ARB_gpu_shader_fp64 for GL 4.0 and GL_ARB_shader_precision and GL_ARB_vertex_attrib_64bit for GL 4.1, cf. mesamatrix).
        However I believe developers are working on an emulation of the latter, which is also necessary for Vulkan (the successor to OpenGL), so support for OpenGL 4.1(+) on the HD4000 could arrive in the future.
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    2. Mephistole Posted messages 55 Registration date   Status Member Last intervention   1
       
      Thank you for your answers
      0