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    Modeling a twisted shelf

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    • pbacotP Offline
      pbacot
      last edited by

      Woops I just noticed there is a twist missing from your version. It's hard to visualize, unless you open the second pdf file that has the plan view. The front edge of the shelf ends up on the inside edge against the wall. Or put another way, the top surface of the shelf ends up facing out instead of facing the wall.

      MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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      • Dave RD Offline
        Dave R
        last edited by

        I wasn't trying to exactly reproduce the shelf you show. Just give you and idea. I didn't keep the model, either. You should be able to use the same basic idea, though.

        Etaoin Shrdlu

        %

        (THERE'S NO PLACE LIKE)

        G28 X0.0 Y0.0 Z0.0

        M30

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        • pbacotP Offline
          pbacot
          last edited by

          Thanks for the inspiration.

          Well I thought I'd try Bezier Surface and that took some learning and time. I got carried away with the polygons it seems. Still having trouble texturing this one.

          I WILL look at Bezier Spline.


          Screen Shot 2022-01-14 at 7.18.11 PM.png


          SHELF-Scene 1.png

          MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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          • BoxB Offline
            Box
            last edited by

            Here's a very basic SUbD version.


            Twist shelf.gif

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            • pbacotP Offline
              pbacot
              last edited by

              Thanks Box! it seems that if you know what to draw for the proxy(?), SubD would be fast. I haven't got into it. This is one of the few organic challenges I have had in work projects. I do need to do terrain modeling, however. I wonder if SubD could be used in that. Or do you use it in puffy furniture?

              MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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

                I would lean towards Curviloft and SUbD to arrive at the final form...

                pbacot-twisted-shelf.skp

                https://i.imgur.com/mnkcK17.png

                To create the initial rails to loft I did use Vertex Tools with a soft falloff to pinch the rails as needed...

                https://i.imgur.com/c6VqSxf.png

                ...making the curved portions had identical segments counts so topology remained even.

                With some UV mapping and 2 levels of subdivision you get somewhat close.

                https://i.imgur.com/H4SR6Zw.png

                Dave's version is yum!

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

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                • Dave RD Offline
                  Dave R
                  last edited by

                  @rich o brien said:

                  Dave's version is yum!

                  Not as yummy as yours, though.

                  Etaoin Shrdlu

                  %

                  (THERE'S NO PLACE LIKE)

                  G28 X0.0 Y0.0 Z0.0

                  M30

                  %

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                  • pilouP Offline
                    pilou
                    last edited by

                    FredoScale 2.0 itself is not sufficient : Slicer + Twist + Bend ? (with little sections resize)

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

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                    • pbacotP Offline
                      pbacot
                      last edited by

                      @pilou said:

                      FredoScale 2.0 itself is not sufficient : Slicer + Twist + Bend ? (with little sections resize)

                      I tried a lot with Fredoscale. I couldn't figure out how to make it work. Then I turned to drawing rails in 3d.

                      MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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                      • pbacotP Offline
                        pbacot
                        last edited by

                        @rich o brien said:

                        I would lean towards Curviloft and SUbD to arrive at the final form...

                        Thanks Rich. So it seems you start with a rough profile, easier to work out, Curviloft that. How do you get the extra edges around the border? Then you texture it, how?

                        I tried Artisan to smooth your model, and it did pretty well but took the texture off . With Artisan Brush I got the texture back on, and it looks OK (on the top of the model anyway--back is a mess, but you can't see it).

                        MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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

                          @pbacot said:

                          Thanks Rich. So it seems you start with a rough profile, easier to work out, Curviloft that. How do you get the extra edges around the border?

                          Yes, CurviLoft > LoftbySpline with segments set to 1 for the main top face...

                          https://i.imgur.com/DTGfaPR.png

                          Next is JointPushPull to thicken and then I use QFT > Select Ring to select top ring and QFT > Connect Edges with the following for Segments/Pinch...

                          https://i.imgur.com/P1OCdUV.png

                          ...to add holding edges. Repeat this for the shelf edge...

                          https://i.imgur.com/FClIvOh.png

                          Run SUbD at 2 levels to test form...

                          https://i.imgur.com/xzEOUz6.png

                          @pbacot said:

                          Then you texture it, how?

                          When I'm happy with the form I return to the proxy and add UV seams and UV unwrap with WrapR...

                          https://i.imgur.com/bX5Onlm.png

                          ...and import the UVs back the SketchUp.

                          https://i.imgur.com/oJOS50i.png

                          You can now replace the checker texture with a seamless wood image or send the mesh the Substance Painter to texture in there.

                          https://i.imgur.com/qQOOS41.png

                          As a side note, SUbD has support for WrapR attributes and likewise WrapR supports SUbD attritbutes so running a subdivision on the proxy will maintain UVs. πŸ‘

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

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                          • pbacotP Offline
                            pbacot
                            last edited by

                            Excellent!

                            I also try to do some things with QFT but I really know how to use it effectively. I don't know of any tutorials and the tool tips don't show for it, on my system at least.

                            MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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

                              @pbacot said:

                              I also try to do some things with QFT but I really know how to use it effectively. I don't know of any tutorials and the tool tips don't show for it, on my system at least.

                              It's a particular workflow you adopt over time. To me its my most used extension for SketchUp. I forgot to mention it because I've so many functions as shortcuts I tend to forget its not in vanilla SU.

                              Hope that info helps you make this model yourself at some point. It's a really good case study for anyone interested in organic form etc.

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

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                              • pilouP Offline
                                pilou
                                last edited by

                                Sorry what is "QFT" ? 😳

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

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                                • pbacotP Offline
                                  pbacot
                                  last edited by

                                  @rich o brien said:

                                  Hope that info helps you make this model yourself at some point. It's a really good case study for anyone interested in organic form etc.

                                  Yes I got a lot of good ideas from this!. I'd love to learn more about QFT somehow.

                                  I also enjoyed using Bezier Surface and learned a lot about it--though I'm still at trial and error level with it. I used your video for pointers!

                                  MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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                                  • TIGT Offline
                                    TIG Moderator
                                    last edited by

                                    @Pilou

                                    QFT == Quad Face Tools

                                    TIG

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                                    • HornOxxH Offline
                                      HornOxx
                                      last edited by

                                      πŸ‘ πŸ‘ πŸ‘ A great post overall and a beautiful and manageable model work on top of that!
                                      I'd have been probably "dotting" between all the approaches shown here and probably would have tried them all side by side to see what came out.
                                      Dave's suggestion with TIG's Extrude Edges by Rails is unknown to me so far - so I'll look at that tool first.

                                      never trust a skinny cook

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                                      • pilouP Offline
                                        pilou
                                        last edited by

                                        Ok for the QFT ! 😳

                                        Other direction πŸ˜„
                                        Maybe ShapeBender or FlowiFy can be used! πŸ˜‰

                                        https://images2.imgbox.com/72/56/aasXdMuH_o.gif

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

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

                                          C'est magnifique!

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

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