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Thread: glcreateshader not supported !

  1. #1

    glcreateshader not supported !

    In the thgl pack there are examples under shaders. I keep getting messages like "glcreateshader not supported" and a few others similar to this one.

    What does this message mean?


  2. #2

    Re: glcreateshader not supported !

    It just means that your Graphics card hasn't got the capacity to use Shaders.

    When Petr first made the examples I experienced the same problems with my crappy graphics card, lol.
    Operating System: Windows 10 Home 64-bit
    CPU: Intel Celeron N4000 CPU @ 1.10GHz
    Memory: 4.00GB RAM
    Graphics: Intel UHD Graphics 600

  3. #3
    Super Moderator Petr Schreiber's Avatar
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    Re: glcreateshader not supported !


    I am sorry it does not work for you, but shaders are really more advanced things. This is reason they are not native in TBGL ( pure TBGL code should run in any PC ).
    That sample uses TBGL + OpenGL headers. That means total power, but also this compatibility issues .

    To enjoy shaders, you would have to own card with OpenGL 1.5 at least, if I am correct.
    Do you know which card do you have ? If not, you can use script from here.

    What are shaders ? They are mini programs, executed/interpreted in driver, which allow you to go around fixed function limitations of API ( OpenGL ). They have very general use - alternative shading ( per pixel lights, toon shading, ... ) and much more.

    Feature worth upgrading if you are graphics enthusiatist / lunatic

    Learn 3D graphics with ThinBASIC, learn TBGL!
    Windows 10 64bit - Intel Core i5-3350P @ 3.1GHz - 16 GB RAM - NVIDIA GeForce GTX 1050 Ti 4GB

  4. #4
    thinBasic author ErosOlmi's Avatar
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    Re: glcreateshader not supported !

    [wiki=Shader]Shader[/wiki] | |
    Win10Pro 64bit - 8GB Ram - Intel i7 M620 2.67GHz - NVIDIA Quadro FX1800M 1GB

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