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    Ocean water rendering artifacts on single surface

    Scheduled Pinned Locked Moved V-Ray
    renderpluginsextensions
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    • alemeratiA Offline
      alemerati
      last edited by

      Hi,

      I'm a beginner with rendering. I have spent a whole day trying to render ocean water with vray for sketchup (vray 2.0 version and sketch up pro 2014).

      I basically follow this good tutorial:
      https://www.youtube.com/watch?v=LAA2Yxe4P6E

      It looks ok for the most part, but I don't understand why I get part of the sea with different bumping and orientation.
      In the attached picture, you can see at least 3 different areas where this happens. But the water surface in sketch up is just 1 single rectangle. I really don't understand.

      Thanks for the help.
      Ale


      sea_water_1600.jpg

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      • TedVitale_CGT Offline
        TedVitale_CG
        last edited by

        This is because there is either a bump or a displacement on the surface. Try adding a map to the diffuse slot and disabling the mapping. V-Ray needs the diffuse mapping to generate UVW information that Sketchup doesn't provide at render time.

        Ted Vitale
        Owner | Creative Director
        http://www.voxl.vision

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        • alemeratiA Offline
          alemerati
          last edited by

          @tedvitale_cg said:

          This is because there is either a bump or a displacement on the surface. Try adding a map to the diffuse slot and disabling the mapping. V-Ray needs the diffuse mapping to generate UVW information that Sketchup doesn't provide at render time.

          So, is the video above incorrect?
          Anyway I will do some tests with a diffuse map, thanks for the advice 😉 !

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          • TedVitale_CGT Offline
            TedVitale_CG
            last edited by

            The video is using V-Ray 1.49. 2.0 works a little differently and needs the Diffuse map to pull UVW information from the geometry.

            Ted Vitale
            Owner | Creative Director
            http://www.voxl.vision

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