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Type: Posts; User: paulk124

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  1. I tested an AMD FirePro V4900 and it gives me the...

    I tested an AMD FirePro V4900 and it gives me the same compile error. It appears that no AMD video card supports multisample images.

    I opened a support ticket with AMD asking about this and they...
  2. aqnuep, thanks for your response. I think I...

    aqnuep, thanks for your response.

    I think I found the reason why I couldn't bind the texture to the image. The texture was created with the GL_DEPTH_COMPONENT format. glBindImageTexture() doesn't...
  3. Is it possible to bind a texture to an FBO and an image?

    I've created a texture with glTexImage2D. I want to bind it to an image using glBindImageTexture and bind it to an FBO using glFramebufferTexture2D. Is it allowed to have the texture bound to the...
  4. AMD card that supports multisampled images

    I have an AMD FirePro 2270 with the latest drivers supporting OpenGL 4.2. I am getting the following GLSL compile error when I try using multisample images:

    ERROR: 0:8: error(#374) Multisample...
  5. I was able to find a fix for this problem....

    I was able to find a fix for this problem. Apparently the Nvidia GLSL compiler (maybe all GLSL compilers do this), optimize away certain parts of the code that it deems unnecessary (especially...
  6. using spinlock to control image read/writes

    I'm working on a fragment shader to read and write to image arrays. So that only one shader invocation can access a given element in the image at once, I've implemented a spinlock image to control...
  7. How to include GLSL code in a release product

    I'm looking for a good way to include GLSL code in our C/C++ application. In the examples I've seen, the code is included in separate .glsl files. It would be inappropriate to include glsl files with...
  8. Correct, I don't want to create a window.

    Correct, I don't want to create a window.
  9. I'm using a pbuffer instead of a FBO because I'm...

    I'm using a pbuffer instead of a FBO because I'm creating an off-screen bitmap that will be saved to a file.
  10. Intel HD graphics mutlisampling problem (bug?)

    I think I've found a bug with the Intel HD graphics driver but want to confirm with this community. The problem happens with an Intel HD P4000 video adapter with their latest driver. When I enable...
  11. I tried using glDisable(GL_FRAMEBUFFER_SRGB) but...

    I tried using glDisable(GL_FRAMEBUFFER_SRGB) but it didn't fix the problem. Note that blending is not enabled. The problem happens when the edge of a triangle is downsampled from the 2x multisample...
  12. More information regarding the source of this...

    More information regarding the source of this problem. I tested my sample code on a Intel HD Graphics P4000 integrated video adapter and there is no problem. That is, for the edges of white...
  13. To visualize what is happening, I created a...

    To visualize what is happening, I created a transparent bitmap from a 32x FSAA image with a bunch of white triangles. The bitmap is drawn onto a device context with a white background. The entire...
  14. inconsistent alpha values in multisampled buffer

    I am creating a Windows bitmap from a OpenGL multisampled pbuffer with a transparent background. I am using the alpha channel to control transparency in the resulting bitmap. The problem is that the...
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