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Type: Posts; User: mfort

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    Re: Official feedback on OpenGL 3.2 thread

    Solution to this is using R or RG textures with GL_EXT_texture_swizzle.
    IMO, once this ext. is in core we don't need I,IA,A textures.
    Would be nice to promote this extension to core one day.
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    Re: Official feedback on OpenGL 3.2 thread

    Nice, Please also make RefCard for Core profile.
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    Re: Official feedback on OpenGL 3.2 thread

    I feel we should move to another thread.


    Not sure about glTexImage, I am using it only to "create" texture. BTW. At least in NV, this is almost no-op. It does almost nothing. The real hard work...
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    Re: Official feedback on OpenGL 3.2 thread

    OK


    It is hard to argue on this. Only driver guys can tell. But I see no reason why driver needs to make a copy. Probably it starts some DMA to copy the data from system memory to GPU memory.

    ...
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    Re: Official feedback on OpenGL 3.2 thread

    yes, calling glBufferData with data set to NULL is painless.

    Maybe glCopyBufferSubData (ARB_copy_buffer) for updating subdata can help.
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    Re: Official feedback on OpenGL 3.2 thread

    Al least for PBO the glMapBuffer API works fine.
    - Mapping buffer is pretty straight forward usage pattern.
    - NVIDIA drivers provides good performance.
    - Loading the data using glTexImage and...
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    Re: Official feedback on OpenGL 3.2 thread

    http://developer.nvidia.com/object/opengl_3_driver.html

    Q: What NVIDIA hardware will support OpenGL 3.0, OpenGL 3.1 or OpenGL 3.2?
    A: The new features in OpenGL 3.0, OpenGL 3.1 and OpenGL 3.2...
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