Part of the Khronos Group
OpenGL.org

The Industry's Foundation for High Performance Graphics

from games to virtual reality, mobile phones to supercomputers

Search:

Type: Posts; User: MalcolmB

Page 1 of 7 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    10
    Views
    4,052

    Another update: running at 120hz on a 120hz...

    Another update: running at 120hz on a 120hz monitor, all the frames get correctly shown to the monitor using this method (testing by recording with a high speed camera).
    So, interesting results..
  2. Replies
    10
    Views
    4,052

    If I remember correctly the issue was with a...

    If I remember correctly the issue was with a Quadro K5000 when using the Video Editing profile + Mosaic. It's specific case where it stops working, it works in 99% of cases the way you are currently...
  3. Replies
    6
    Views
    1,909

    More use case examples: First one I've...

    More use case examples:

    First one I've mentioned before briefly, but I'll flesh it out more.

    Example 1. Right now to synchronize two threads using two GL contexts we need to use both an OS CPU...
  4. Replies
    10
    Views
    4,052

    Yes, the requirement given from that Nvidia dev...

    Yes, the requirement given from that Nvidia dev surprised me also, and does seem to contradict that article and other articles I've found. Trying to get reconfirmation of this from them, but I'm...
  5. Replies
    6
    Views
    1,909

    But I'm trying to follow that advice... I'm...

    But I'm trying to follow that advice... I'm trying to ensure that I call SwapBuffers from the thread that created the DC, the window's thread. Your remarks bring up another example actually, which to...
  6. Replies
    6
    Views
    1,909

    GClements...

    GClements : The rules for the callback can follow the same ideas as when GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB is disabled for the debug callback. There is no guarantee which thread will call the...
  7. Replies
    10
    Views
    4,052

    tonyo_au...

    tonyo_au : Which thread does the swap buffers occur in for each window? If it's in the Render Thread then that is *technically* illegal according to Nvidia, although I've only ever found one case...
  8. Replies
    10
    Views
    4,052

    I do something similar to you, but not quite. It...

    I do something similar to you, but not quite. It works, but the performance is far worse than if 100% of the OpenGL calls occur in a single thread. (22 fps vs. 30 fps in one sample file I have)
  9. Replies
    10
    Views
    4,052

    SwapBuffers() in another thread

    I know, I know. This is a topic that has been discussed a lot. I've never seen a solution suggested like the one I'm trying to do though, so bare with me.

    In the past I did all the GL calls and...
  10. Replies
    6
    Views
    1,909

    Sync finished callback

    It would be great if we could register a callback function that gets called by a driver thread when a GLsync object becomes signaled, instead of having to poll or stall on the GLsync object until...
  11. Replies
    2
    Views
    1,142

    Thanks for the suggestion, you're correct. If I...

    Thanks for the suggestion, you're correct. If I put it in a struct within the interface block is does how. However this extra layer of having to do interface.struct.value makes it pretty ugly also....
  12. Replies
    2
    Views
    1,142

    Copying all data from interface blocks

    Hey, is there an easy way to copy all the data in an interface block from the input to the output? For example lets say in the geometry shader I have


    in Vertex {
    vec4 color;
    vec3...
  13. Replies
    3
    Views
    1,096

    Re: bindless graphics + glMapBufferRange

    The buffer doesn't become non-resident after an invalidate map. However the GPU_ADDRESS I get isn't changing either, which maybe is correct?

    I will say that the performance increase I'm getting is...
  14. Replies
    3
    Views
    1,096

    bindless graphics + glMapBufferRange

    I'm sure the answer is in the details of the spec, but I'm still not 100% sure of this after reading through them.

    What is the behavior for Nvidia's bindless graphics when used with...
  15. Re: Informal Forum Posting Guidelines: Commentary

    I'm not saying don't ask why in all cases. I'm saying don't ask why simply because you don't know the answer, as a way to change the conversation away from the question you can't answer.
  16. Re: Informal Forum Posting Guidelines: Commentary

    Many people come here having done their research, decided 'ok, this is the extension I need to use to do this, now how do I use it?', and have a question related to the usage of that extension. 'Why'...
  17. Re: Informal Forum Posting Guidelines: Commentary

    What this is *badly* missing is guidelines for replying to questions as well. This is entirely one sided without dealing with the aggressive and condescending replies that can turn people away from...
  18. Re: Laptops with a lower power card + an real GPU

    I don't think it's Nvidia optimus. The laptop literally has a 2nd (usually Intel) graphics card whos driver is responding to the initial gl calls.

    Edit: Ok after reading deeper into optimus I...
  19. Re: Laptops with a lower power card + an real GPU

    Hey can you elaborate on the NVAPI solution? I use NVAPI in my app already but I just downloaded the latest NVAPI documentation and I can't find the setting you are referring to.
    Thanks
  20. Laptops with a lower power card + an real GPU

    Has anyone found a good way to deal with the new laptops that have a low power onboard graphics chip that is used for basic computing, and then a real (Nvidia etc.) GPU used for 3D apps? When my...
  21. Replies
    6
    Views
    5,896

    Re: How to use texelFetch()?

    He was actually talking about the textlFetch() function, not texelFetchBuffer()
  22. Replies
    5
    Views
    1,554

    Re: Uniform blocks optimized out

    Did you get any results from asking Nvidia about this? I'm getting the same issue.
  23. Replies
    5
    Views
    2,279

    Re: wglMakeCurrent fails + WGL_NV_gpu_affinity

    I've learn that on certain setups, on new Nvidia drivers, the behavior for GPU affinity has changed (sadly). This is how things work on Windows 7 also, but they've brought it back to XP also.
    You...
  24. Replies
    39
    Views
    17,645

    Re: Application is stuttering on every system...

    Hey fgreen, did you get any further with this problem?
  25. Replies
    5
    Views
    2,279

    Re: wglMakeCurrent fails + WGL_NV_gpu_affinity

    Does GetLastError() return anything useful?
Results 1 to 25 of 159
Page 1 of 7 1 2 3 4