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    Terrain rendering

    Scheduled Pinned Locked Moved V-Ray
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    • array81A Offline
      array81
      last edited by

      I tried to use VRAY for first time.
      I get a problem with terrain model. As you can see on picture on grass there are mesh lines.

      https://s22.postimg.org/3t7t5l4g1/render.jpg

      Where am I doing wrong?

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      • K Offline
        koenvdw
        last edited by

        use smooth : eraser tool and hold down ctrl

        Is the hidden geometry visible?

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        • array81A Offline
          array81
          last edited by

          On SketchUp I don't see these lines:

          https://s21.postimg.org/gbqz7zefb/render.jpg

          I don't understand because I see them on render

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          • panixiaP Offline
            panixia
            last edited by

            looks like you are using displacement without the "keep continuity" option (or whatever that's called in sketchup vray i don't remember) turned off, is that?!?

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            • array81A Offline
              array81
              last edited by

              @panixia said:

              looks like you are using displacement without the "keep continuity" option (or whatever that's called in sketchup vray i don't remember) turned off, is that?!?

              "keep continuity" is active on VRAY.
              In any case the problem is the displacement. With material without "displacement" I don't have this problem.

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              • R Offline
                rspierenburg
                last edited by

                Is the terrain grouped by itself?

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                • array81A Offline
                  array81
                  last edited by

                  @rspierenburg said:

                  Is the terrain grouped by itself?

                  Yes

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                  • panixiaP Offline
                    panixia
                    last edited by

                    ok, then i suppose it's adding triangles to fill the gap and probably assignin them the default material, try to assign the grass material also to the group itself and not only to the mesh.
                    as a side note, i would not suggest to use displacement at all for such a large area..

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                    • array81A Offline
                      array81
                      last edited by

                      I have assign material to group and all group items but I get the same result.

                      This is the model: https://1drv.ms/u/s!AsM-9m6nUHA9qTnr9qFgnsQdk4LD
                      This is the grass v-ray material: https://1drv.ms/u/s!AsM-9m6nUHA9qTpQIcNlENyawbhQ

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                      • panixiaP Offline
                        panixia
                        last edited by

                        i can't test the material because i don't have vray on sketchup, but i gave a quick look at the model..

                        as a good modeling practice, i STRONGLY reccommend to drop all of you geometry to layer 0 (ALWAYS)

                        in your model the displaced geometry is assigned to different layes (some geometry is on layer 0, other is on terrain layer) use group and soubgroups (or components) to manage layers and leave edges and faces assigned to layer 0..
                        not sure this is causing this specific problem (can't test) but it may cause all sort of problems and odd bugs within sketchup.

                        another thing you can try, is to smooth the geometry (the mesh is actually hard edged) and see if it helps.

                        i think the main problem however, is the missing of a proper uv-map (causing discontinuity in texture, see screenshot of your model below) and the fact that the material is not applyed to the back face too..

                        i really suggest to fix both problems at once using the tru paint plugin (apply "natural" mapping with the "front&back" opttion ticked). that should clean your displacement.

                        perΓ² non ho capito chi te la fa fare a usare il displacement, usa i proxy di vray con qualche plugin come ad esempio skatter ($$) o raytracer (free) o component spray (free) per spargere l'erba e le piante in vario modo.. viene meglio, piΓΉ veloce e consumi tonnellate di RAM di meno πŸ˜›

                        edit - missing screenshot


                        messed UVs.PNG

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                        • pilouP Offline
                          pilou
                          last edited by

                          Why not use the free and more easy Visualizer? πŸ’š

                          http://getvisualizer.com/images/woody_airstream_sheet2.jpg

                          Frenchy Pilou
                          Is beautiful that please without concept!
                          My Little site :)

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                          • array81A Offline
                            array81
                            last edited by

                            Thanks for "skatter ($$) o raytracer (free) o component spray (free)" suggestion.
                            Visualizer doesn't work on SketchUp 2016.

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                            • pilouP Offline
                              pilou
                              last edited by

                              This Visualizer + That: works for SU 2016!
                              And see here how make your paths for input files! πŸ€“
                              See all the page!
                              (sorry in French but paths are multilanguages ! πŸ˜„
                              Careful there are different Folders "Plugins" !

                              plop1.jpg

                              Frenchy Pilou
                              Is beautiful that please without concept!
                              My Little site :)

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                              • pilouP Offline
                                pilou
                                last edited by

                                For trees , grass & flowers you have this free one! πŸ˜‰
                                (Press "Download" button )

                                flower1.jpg

                                By TreeMaker

                                http://www.3darcstudio.com/images/master/verdure09.jpg

                                Frenchy Pilou
                                Is beautiful that please without concept!
                                My Little site :)

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