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UE4.25 Cannot see any raytrace in the scene despite all the main instructions

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    UE4.25 Cannot see any raytrace in the scene despite all the main instructions

    Hello everyone,

    I know I might be missing something basic... but I have installed a Quadro RTX 6000 to test raytracing and for some reason nothing happens.

    To sum up:

    1- Windows 10 build is 19041.330

    2- Latest drivers for the Quadro card

    3- DirectX12 installed and directx 11 &12 (sm5) checked and default RHI is on directx 12. I also did the " -dx12" old trick in the shortcut of UEeditor.exe just in case.

    4- Raytracing is enabled

    5- Support compute Skin Cache checked

    After restarting it has compiled all the shaders, 5 mins approx, I played around with postprod volume (RT GI, RT reflections, RT AO etc) but nothing happens, not even a small flicker which makes me believe that Raytracing is not working at all. I tried it on my scene and on startup scenes but nothing at all. I have a skylight, point lights, emissive materials, nothing seems to generate any GI or reflection at all.

    Is there anything missing?

    Thank you in advance,
    Fran.

    #2
    Are meshes set to Static or Movable, or Stationary? Is there a directional light?

    Comment


      #3
      Everything is static, no directional light.

      Comment


        #4
        Not sure if it may help, but while trying to re-enabling raytracing and directx12 and restarting UE, get this error msg:

        LoginId:449572fc4d2d5dbf83d316bd729f95b7
        EpicAccountId:8bac6e9f728749c1ad9f64e4d6cbba79

        Unhandled Exception: EXCEPTION_ACCESS_VIOLATION 0xe1d3d160

        D3D12
        UE4Editor_D3D12RHI
        UE4Editor_D3D12RHI
        UE4Editor_D3D12RHI
        UE4Editor_D3D12RHI
        UE4Editor_D3D12RHI
        UE4Editor_D3D12RHI
        UE4Editor_RHI
        UE4Editor
        UE4Editor
        UE4Editor
        UE4Editor
        UE4Editor
        kernel32
        ntdll


        Any idea?
        Thank you guys...

        Comment


          #5
          And I think it was supposed to appear a new voice in the view mode (Lit, Unlit, Wireframe etc) as Path Tracing, which is not there.

          Comment


            #6
            You didn't mention a post process volume. You need one of those in the scene and enable ray-tracing in there. Did you place one?
            www.s-dot.de/viz
            ArchViz User Interface :: UE4 Marketplace.

            Comment

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