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    Mental Ray noisy shadows

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    • J Offline
      Jeff_LCI
      last edited by

      Having worked with mental ray, you can try the following:

      Final gather to: Draft
      Image Precision to: High
      Glossy reflection: 2x
      Glossy refraction: 2x

      Optionally:
      Turn on Global Illumination and set Max Photons per sample to 50,000
      Turn off: Reuse Geometry
      Disable Caustics (in rendering settings, indirect illumination)

      Hope this helps.

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      • B Offline
        bhbarchitects
        last edited by

        Dont agree with mentalray being poor, I have had some nice results and seen some stunning examples of arch vis. Personally only use vray with sketchup as architects can never make their mind up and constantly change things!!!

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        • StinkieS Offline
          Stinkie
          last edited by

          @unknownuser said:

          I have had some nice results and seen some stunning examples of arch vis.

          Me too. Ramy Hanna's stuff's great.

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          • EarthMoverE Offline
            EarthMover
            last edited by

            Thom have you tried to run the scene through Iray? Not sure what version of Max you have, but the interiors coming out of Iray that I've scene have been superb. Also maybe Max 2 Thea would be a good solution for you Revit models.

            With this MR issue, is your only light source the Daylight system? What is you MR exposure setting set to? If you turn off FG and GI are you still getting noise in the shadows?

            3D Artist at Clearstory 3D Imaging
            Guide Tool at Winning With Sketchup
            Content Creator at Skapeup

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            • Chris FullmerC Offline
              Chris Fullmer
              last edited by

              I've done a bit of mental ray rendering many moons ago, and never had such bad shadow artifacts, so I'm sure there is a way to fix it. I just can't think of how off the top of my head πŸ˜„

              Lately you've been tan, suspicious for the winter.
              All my Plugins I've written

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              • Chris FullmerC Offline
                Chris Fullmer
                last edited by

                Here I remembered an old sample. Modeled from memory of my old Landscape architecture building at school. Then rendered in Max, using mental ray and the sun. I just don't recall the settings.

                Link Preview Image
                Building 7

                Modeled in SketchUp in under 4 hours from memmory. Rendered in 3ds Max, using Mental Ray. Hopefully more complete images to come!

                favicon

                Flickr (www.flickr.com)

                I might have the model around still if you want to peak at settings.

                Lately you've been tan, suspicious for the winter.
                All my Plugins I've written

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                • thomthomT Offline
                  thomthom
                  last edited by

                  Chris - is that setup similar to mine? Interior with Sun & Sky lighting only?

                  Thomas Thomassen β€” SketchUp Monkey & Coding addict
                  List of my plugins and link to the CookieWare fund

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                  • B Offline
                    bhbarchitects
                    last edited by

                    ThomThom could you share that part of the model so, i can give it a try?

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                    • thomthomT Offline
                      thomthom
                      last edited by

                      @jeff_lci said:

                      Having worked with mental ray, you can try the following:

                      Final gather to: Draft
                      Image Precision to: High
                      Glossy reflection: 2x
                      Glossy refraction: 2x

                      Optionally:
                      Turn on Global Illumination and set Max Photons per sample to 50,000
                      Turn off: Reuse Geometry
                      Disable Caustics (in rendering settings, indirect illumination)

                      Hope this helps.

                      I tried this, but it made no real difference...

                      Thomas Thomassen β€” SketchUp Monkey & Coding addict
                      List of my plugins and link to the CookieWare fund

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                      • PixeroP Offline
                        Pixero
                        last edited by

                        Two looong threads with lots of tips on MentalRay:

                        http://forums.cgsociety.org/showthread.php?f=183&t=429322
                        VRay-like interior renders with mental ray

                        http://forums.cgsociety.org/showthread.php?f=183&t=303284
                        Mental Ray - Render Troubleshooting

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