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Type: Posts; User: lalakis

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  1. The dFdx method for the texture colors works but...

    The dFdx method for the texture colors works but the black lines are segmented. probably the accuracy problem you mention already. How can I improve the accuracy?
  2. I thought of the 1px black color in texture. But...

    I thought of the 1px black color in texture. But this does not solve the view depended size problem.

    The number of triangles is > 10 million so i believe the 2 passes or 2 texture outputs will...
  3. The texture pixels can have different color...

    The texture pixels can have different color because of the lighting. It may work in some areas but i don't think it will work in general.
    I was thinking of something like a fragment shader :



    ...
  4. How to draw a line between GL_NEAREST 1D texture colors ?

    I have a 1d texture with GL_NEAREST filtering.
    I have also a textured mesh like the following picture:

    899

    I'm trying to draw a black line (1px width) in between texture colors like the...
  5. Re: VBO performance problem with multiple threads

    I have tried this but i don't win too much. My update time is small compared to Map/Unmap time.

    I will run some test again with this method. My main goal is to reduce the time that the draw thread...
  6. VBO performance problem with multiple threads

    Hello to everybody,

    I have around 1000 vbos of 4000 vertexes each.

    If i have one thread that updates all the vbos and then draws all , i get 42 fps in 8800 (50 fps in Quadro 5600)

    If i have...
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