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Type: Posts; User: rldivide

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    Ah thanks for the tip ! I'm indeed using OpenGL...

    Ah thanks for the tip !
    I'm indeed using OpenGL ES 2.0, but I'm using it on desktop with a GeForce GTX 260 so maybe there's a way to use it anyhow.
    However it doesn't list the pixel_buffer_object...
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    OpenGL ES and PBO ?

    Hi,

    With OpenGL you can do asynchronous texture transfer using a PBO, as described here: http://www.opengl.org/registry/specs/ARB/pixel_buffer_object.txt


    glGenBuffers(1, &texBuffer);...
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    Replying to myself: 1/ Yes 2/ No A google...

    Replying to myself:
    1/ Yes
    2/ No

    A google engineer who has worked on Chrome GPU acceleration is talking about it here:
    https://www.khronos.org/webgl/public.../msg00142.html

    And the...
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    float texture: OpenGL vs OpenGL ES

    Hi,

    I'm a little lost on how to create a float texture, between OpenGL 2.0 and OpenGL ES 2.0...


    I used to do this on OpenGL:



    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, width, height,...
  5. Re: why is texture border and GL_CLAMP deprecated ?!

    implementing seamless tiling in fragment shader sounds extreme, it requires providing 9 textures unit (main texture+4 borders+4 corners) and a bit of math in the shader. Just to have some tiling.
    ...
  6. why is texture border and GL_CLAMP deprecated ?!

    I just discovered the border parameter in glTexImage2D which I find very useful for my needs (tiling a very large -4096x16384- texture in tiles of 2048x2048), and its associated GL_CLAMP mapping...
  7. Re: uploading a very large texture in smaller blocks ?

    On the CPU side I can't (don't wan't to) cut my large array in 16 arrays, it would not make sense anymore as for the various process which are applied to it.
    I've been told I could use...
  8. uploading a very large texture in smaller blocks ?

    Hello,

    I have a very large (let's say 8192x8192), dynamically generated texture array on the CPU side. Part of the data is updated each time the user does an action.
    Is there a simple way to...
  9. Re: tools/database to know supported GL extensions

    thanks !
  10. tools/database to know supported GL extensions

    Hello,

    Is there a tool/database to know what extensions are supported on a given GPU ?

    Thanks
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    Re: uploading textures beyond VRAM

    excellent, thanks for the numbers !
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    Re: uploading textures beyond VRAM

    Ah, awesome ! So I don't have to write a streaming engine (I'm not coding a game, so automatic swapping would be good enough).

    How can I be sure all GPUs have this function ? Is the official name...
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    uploading textures beyond VRAM

    Hello,

    -What will happen if I upload textures to the VRAM beyond the remaining space ?
    Like uploading height 2048*2048BGRA8 textures on a 128MB GPU: what will happen on 7th/8th texture uploaded ?...
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