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    Geometry weirdness

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    • StinkieS Offline
      Stinkie
      last edited by

      Anyone know how to remedy this? I'm using Vray, btw, but the problem's also there when using Thea.


      su.jpg


      render.jpg

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      • StinkieS Offline
        Stinkie
        last edited by

        Come on, people, chop-chop! I need answers here! πŸ‘Ώ

        Seriously, though, if someone knows how to remedy this, I'd be over the moon. I will handsomely reward him or her. Gold! Diamonds! Land! Livestock! Copious amounts of highly experimental drugs!

        Bit wound up. Don't know if you can tell? 😎

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        • jeff hammondJ Offline
          jeff hammond
          last edited by

          @unknownuser said:

          Come on, people, chop-chop! I need answers here! πŸ‘Ώ

          it's too hard to know what the problem is.. you know what you're looking at here and what problem you're having..
          we don't πŸ˜‰

          rephrase the question?

          dotdotdot

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          • FrederikF Offline
            Frederik
            last edited by

            @unknownuser said:

            rephrase the question?

            🀣

            I agree...
            I saw the post yesterday, but didn't know exactly what to look for... 😳
            Left it to let others chime in... πŸ˜„

            What about a part of the model, where this issue is present...?

            Cheers
            Kim Frederik

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            • cottyC Offline
              cotty
              last edited by

              Perhaps some very acute angles?

              my SketchUp gallery

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              • StinkieS Offline
                Stinkie
                last edited by

                Cotty, Jeffy, Kimmy,

                What you're looking at, is a pyramid shape. I've bevelled the edges that meet in the pyramid's point, using RoundCorner. The black 'lines' you see in the render (marked 'this sht' in the pic below), should not be there. Looks like polys going 'right, friday night, let's get hammered and fck sh*t up'.

                Yours,

                Tommy


                render.jpg

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                • Rich O BrienR Offline
                  Rich O Brien Moderator
                  last edited by

                  have you double verts?

                  Download the free D'oh Book for SketchUp πŸ“–

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                  • StinkieS Offline
                    Stinkie
                    last edited by

                    No idea, Rich. How do I check? (I did run TT's CleanUp tools -render looked similar.)

                    I'll upload the pyramid thingy tommorow morning. Thanks for any help. Let me know what kind of drugs you prefer.

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                    • Rich O BrienR Offline
                      Rich O Brien Moderator
                      last edited by

                      Run Fredo's Remove Lonely Vertex tool. It'll mark and remove any shitty stuff.

                      But share it when you get time.

                      Download the free D'oh Book for SketchUp πŸ“–

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                      • StinkieS Offline
                        Stinkie
                        last edited by

                        @rich o brien said:

                        Run Fredo's Remove Lonely Vertex tool. It'll mark and remove any shitty stuff.

                        Oh, excellent! I'll try that.

                        But share it when you get time.[/quote]

                        I will.

                        Nighty-night, gents.

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                        • jeff hammondJ Offline
                          jeff hammond
                          last edited by

                          @unknownuser said:

                          (marked 'this sh*t' in the pic below)

                          πŸ˜†
                          oh.. that.. thanks for clearing it up.

                          but i don't know.. rich's suggestion sounds like a good start..
                          if not, maybe post a hidden line view.

                          dotdotdot

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                          • cottyC Offline
                            cotty
                            last edited by

                            For me, it looks like a displacement problem because of very long but narrow tiangles. Do you have a view of the hidden lines?

                            my SketchUp gallery

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                            • StinkieS Offline
                              Stinkie
                              last edited by

                              Looks like it, yes, but I'm not using any displacement.

                              Did as Rich suggested. No change.

                              Here's the thingy.


                              wtf.skp

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                              • cottyC Offline
                                cotty
                                last edited by

                                The faces are triangulated while the export for a renderer and the very long and narrow faces become a problem. In the following example, I used Artisans knife tool to shorten those faces and the problem was solved...
                                (Rendered with Indigo and "random triangle color" option)

                                wtf.jpg

                                my SketchUp gallery

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                                • BoxB Offline
                                  Box
                                  last edited by

                                  I suspect it's caused by round corner struggling to make the tiny faces needed. The pyramid isn't "small" but the four edges coming together at a sharp angle and the smallness of your rounding are forcing it to make some very tiny triangles.
                                  Perhaps if you scale up before using round corner it wont tear.

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                                  • StinkieS Offline
                                    Stinkie
                                    last edited by

                                    Box, thanks for the suggestion. However, I did scale the pyramid up before bevelling.

                                    Cotty, you're a bl**dy genius. I am going to try your suggestion right now!

                                    Edit: works! Cotty -thanks so much. The rest of you: shakes head dissaprovingly

                                    About the diamonds etc, I lied.

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                                    • StinkieS Offline
                                      Stinkie
                                      last edited by

                                      Hmmm ... got the problem in other models as well. SU doesn't like tight bevels, it seems. Maybe it's finally time to get that new Modo license. grumbles

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                                      • Rich O BrienR Offline
                                        Rich O Brien Moderator
                                        last edited by

                                        SU doesn't obey normal modeling principles. NGons = bad mesh and uv's.

                                        Triangulation equals messy uv's.

                                        Download the free D'oh Book for SketchUp πŸ“–

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                                        • StinkieS Offline
                                          Stinkie
                                          last edited by

                                          Yeah ... I knew that. Hadn't realised so far it was this bad, though. Maybe I ought to try TT's Quad Face Tools.

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