Announcement

Collapse
No announcement yet.

Image renders with RT GPU as Active Shade. Broken with RT GPU as production renderer.

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Image renders with RT GPU as Active Shade. Broken with RT GPU as production renderer.

    Hello!

    I am working on a small low budget arch viz scene. I thought that this could be a good candidate for RT GPU but have run in to some issues.

    Everything works perfectly with RT GPU as the Active shade renderer. See attached image (I know it is not pretty, unfortunately this is for production arch viz )

    However, when I set up RT GPU as the production renderer it looses all of the forest pro objects, some of the proxies (but not all), and even some of the higher poly count objects in the scene.
    In the v-ray messages it states that the "Total memory for device 0: 4096 MB, free 1324 MB" so this should not be due to lack of VRAM. I am running a GTX 970 (4GB VRAM) on my company box, but also tested the scene on my GTX 1070 (8GB VRAM) at home. Both machines had the same issues when rendering with RT GPU as the production renderer.

    Has anyone run in to similar issues? are there any work arounds or solutions? I can get this image out the door by rendering finals with the good old production CPU engine, but I would really like to be able to finish projects in RT GPU.

    Any help would be greatly appreciated!
    Attached Files

  • #2
    What V-Ray version are you using ?

    Best,
    Blago.
    V-Ray fan.
    Looking busy around GPUs ...
    RTX ON

    Comment


    • #3
      Thank you for the fast response!

      These images were created with v-ray 3.40.02 and max 2015. (our pipeline is slow on upgrading)


      I just tested 3.40.03 with max 2017 and am getting the same result.

      Comment


      • #4
        This seems strange.

        Can you send scene for investigation to support@chaosgroup.com (+ a link to this thread for their reference) ?

        Best,
        Blago.
        V-Ray fan.
        Looking busy around GPUs ...
        RTX ON

        Comment


        • #5
          Absolutely. Thank you for the help!

          Comment


          • #6
            Thanks for the scene, it helped us to replicate the issue.

            The difference between the ADV and Active shade is actually because the displacement, it is enabled for the Adv(Global Switches Displacement option is disabled but this is not yet supported by RT) but disabled for the ActiveShade.
            When displacement is enabled for the ActiveShade it renders the same thing.

            We'll have to investigate further to find out why it doesn't work when displacement is enabled.
            Svetlozar Draganov | Senior Manager 3D Support | contact us
            Chaos & Enscape & Cylindo are now one!

            Comment


            • #7
              No Problem! Thank you for your help with this. I was able to get this out the door so no rush. RT just keeps getting better and better. I can't wait until it becomes the primary way we render in v-ray!

              Comment


              • #8
                Btw, it should work fine in the official 3.5. It should be released (very) soon.
                Sorry for the troubles and thanks for the report.

                Best,
                Blago.
                V-Ray fan.
                Looking busy around GPUs ...
                RTX ON

                Comment

                Working...
                X