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Type: Posts; User: auspaco

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  1. AMD Radeon 7950 - GLSL is 4.3 but OpenGL API is only 4.2?

    Apologies if this is in the incorrect spot.

    I'd like to try out the new compute shaders, and I'm trying to figure out if my card can handle it. It's a Radeon 7950 powercolor with the latest...
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    Re: fast dynamic mesh

    Pretty much every vertex location/colour is altered very frame - but doesn't change between creating the images for each eye.

    In that case I guess it's probably faster to edit the vertices on the...
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    fast dynamic mesh

    I'm looking for the fastest way to implement a dynamic mesh and would appreciate any advice.

    My mesh contains a large number of triangles(500k) and on each frame the location/color of each vertex...
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    Re: passing data in textures - GL_NEAREST?

    For example, I have two textures,
    TextureA: contains the data (want this to be GL_NEAREST)
    TextureB: contains image data (want this to be GL_LINEAR)

    The return colour comes from TextureB, but...
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    Re: passing data in textures - GL_NEAREST?

    So does the mag/min filter affect the operation of texture2D in the FS?
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    Re: passing data in textures - GL_NEAREST?

    Yes, i'm using them in the FS.

    What do I do then if I want to create a smooth GL_LINEAR texture, but want to access data from a texture (which from what you're saying would require GL_NEAREST)?
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    passing data in textures - GL_NEAREST?

    I am trying to pass an array of bytes to my fragment shader. Originally I was trying to work with uniform arrays but gave up when I realised you can't use a variable index to access the data (what...
  8. Width and height of auxiliary color buffers?

    Is there a way to determine the width and height of the auxiliary color buffers?

    I'm trying to put images into an aux color buffer to use later for fast texture creation, but in order to do this...
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    Re: Blitting between 2D textures?

    Thanks for the replies!

    With regard to using FBOs or glTexSubImage2D, my impression is that they both copy data from system memory to video memory, is this correct?

    If so, is there a...
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    Blitting between 2D textures?

    I'm trying to create a 2D texture that is updated every frame.

    The texture is fairly large (1024x1024) and is composed of a number of smaller cells, each 8x8. The cells can only have a limited...
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