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  • GPU rendering error

    Hey there
    I have a problem when I try to use CUDA or GPU for rendering
    I get these errors a lot "attached photos" especially the one that says "could not initialize the GPU for rendering"
    even that sometimes it works
    like literary the same shot with the same setting did successfully render the first time but when I tried to rerender it I got these errors
    I use Revit 2022 - 51020 and Geforce RTX 3060

    I hope you can help me with this issue

    thanks a lot in advance
    Attached Files
    Last edited by arch_mado; 11-12-2021, 01:39 PM.

  • #2
    It looks like you're running out of memory. How big is your scene?
    Is that hybrid rendering or GPU-only?
    Ana Lyubenova
    Product Manager

    www.chaos.com

    Comment


    • #3
      I don't think so
      I use GPU Geforce RTX 3060 which is 12 gb
      27" monitor
      and tried both
      GPU only or Cuda hybrid
      both not working
      only CPU rendering working but it takes really very much more time to render with it than the hybrid

      Comment


      • #4
        We'll need to look at the problematic project then, and attempt to reproduce the issue on our end. Will you be able to share the project + all accompanying assets with us?
        Ana Lyubenova
        Product Manager

        www.chaos.com

        Comment


        • #5
          ok I can share
          it's kind of an unfinished huge project though
          it could be because of the size of it
          not sure

          Comment


          • #6
            One more thing before sharing it though. Can you make sure you're using the latest drivers? (This should be checked on NVidia's official website: https://www.nvidia.co.uk/Download/index.aspx?lang=en-uk)
            If not, you need to update the drivers.

            Another thing -> what did you do after you received the error? Have you attempted to restart Revit? You need to.
            Ana Lyubenova
            Product Manager

            www.chaos.com

            Comment


            • #7
              yes I already checked and I'm sure I'm using the latest drivers

              also, I did try restarting the Revit and restarted the whole PC
              didn't fix the problem

              Comment


              • #8
                We'll then need to test the project.
                Ana Lyubenova
                Product Manager

                www.chaos.com

                Comment


                • #9
                  I sent it to you in a message






                  Last edited by arch_mado; 13-12-2021, 11:24 AM.

                  Comment


                  • #10
                    Hi again arch_mado ,

                    Please, try the following:
                    1. Close Revit
                    2. Find the VRayPlugins.json file located in C:\Users\<your username>\AppData\Roaming\Chaos Group\V-Ray for Revit 2022
                    3. Open the file with a text editing program (f.e. Notepad)
                    4. Find the following parameter: OpenclResizeTextures which is set to 0
                    5. Set it to 2
                    6. Save the file
                    7. Open Revit and render

                    Best,
                    Ana
                    Last edited by Ana Lyubenova; 14-12-2021, 02:12 AM.
                    Ana Lyubenova
                    Product Manager

                    www.chaos.com

                    Comment


                    • #11
                      still not working and got 1 more error besides the previous 3
                      Attached Files

                      Comment


                      • #12
                        ok here is how I fixed it

                        I found that the problem is the memory for the fur as it's a big project with kind of wide green areas
                        so when I turn the fur off,,, the Cuda or GPU rendering works fine
                        it appears that I had too much amount of fur
                        so I reduced the "count/area" and it worked fine
                        Last edited by arch_mado; 17-12-2021, 03:57 AM.

                        Comment


                        • #13
                          Hi there,

                          I have the same problem. Trying to render a very easy scene (70MB), using double sided material. It would give me "could not initialise GPU for rendering". It would work with CPU only.

                          Comment


                          • #14
                            Hello francesco_salvatori​, could you please share the following details:
                            • The exact vesrion of Revit
                            • The version of V-Ray for Revit
                            • Your GPU model and driver version (Please note that you can check the latest recommended driver version from this link - 551.86)
                            Additionally, if possible, please share the project file that is causing the problem, You can upload it here or, if you prefer, you can open a ticket and share it directly with us.

                            Comment

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