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    CLOTHWORKS - Collider showing through cloth

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    • K Offline
      kylekin Newcomers
      last edited by

      Table showing through cloth I'm following the first tutorial from the cloth works manual and using the exact settings indicated, but the collider is showing through the cloth every time. I've switched out tables.

      I'm using a brand new Mac M2 Max with 98 GB RAM and running Sketchup 2023

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

        @unknownuser said:

        I've switched out tables.

        What does that mean?

        You can define the space between collider and cloth so clipping doesn't occur. But it is dependent on the object's size.

        Sharing a skp would help.

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

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        • K Offline
          kylekin Newcomers
          last edited by

          It doesn't matter the collider I use. If I switch tables or build my own geometry, the cloth is getting clipped. Attached is the file. How do you define the space between the cloth and collider?


          Tablecloth.skp

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          • K Offline
            kylekin Newcomers
            last edited by

            It appears to be a problem with the adaptive remeshing. Any time I use it I get clipping. Works fine as long as I simply turn that off.

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

              As mentioned in the manual...

              @unknownuser said:

              Adaptive grid is used for applying grids to shapes that are not rectangular

              @unknownuser said:

              Quadrilateral grid usually gives the best results in all types of simulations, except for curtains

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

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              • K Offline
                kylekin Newcomers
                last edited by

                The manual suggests using adaptive REMESHING. I used a quadrilateral grid in my model. It's the remeshing that doesn't work.

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                • K Offline
                  kylekin Newcomers
                  last edited by

                  To follow up, if I create a circular table cloth and apply an adaptive GRID - that also does not work.


                  Screenshot 2023-03-20 at 7.11.01 AM.png

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

                    Clothworks has a substantial amount of settings to tweak.

                    Your original post was for a rectangular shape. Can you confirm the Quad grid is failing? What was the resolution of the quad cloth you simulated?

                    It would need to be at least 100 if Adaptive is on. But 3000+ if its just quad grid.

                    Don't set the quad to 3000+ and then add adaptive remeshing or you'll be waiting......

                    https://i.imgur.com/T2cFphO.png

                    The Thickness Slider controls distance between cloth and collider. As the tooltip mention its in millimeters. So select the cloth and set a thickness and then the collider. The collider I typically set higher that the cloth.

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

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

                      For example your file you posted if the cloth is 200 quad grid resolution with adaptive set to 5 you get no edge protrusion.

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

                      If you run more that 1 iteration of Laplacian Smoothing it will cause table corners to peek through. But 1 iteration is ok.

                      https://i.imgur.com/BThh9dc.png

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

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                      • K Offline
                        kylekin Newcomers
                        last edited by

                        I tried exactly what you suggested but still got the table corners poking through. No matter the level of adaptive remeshing I use I get the table poking through the table cloth.


                        Screenshot 2023-03-20 at 8.53.02 AM.png

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

                          That's weird. How many frames did you let it run for?

                          If we both ran the same simulation the only difference would be the length of time or you inadvertently clicked on the cloth causing Drag to activate. I doubts its the latter.

                          What Thickness did you have for the collider?

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

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                          • K Offline
                            kylekin Newcomers
                            last edited by

                            I had a thickness of 3 on the collider as suggested. Tried it with a thickness of 1. I finally got it to work once I had the thickness of the cloth higher than the thickness of the table (which I suppose makes sense). I set the cloth to a thickness of 5 and the collider to a thickness of 1. Thanks for being patient and talking me through this!

                            Now... I just need to figure out how to apply an adaptive grid to a circular table cloth. Any time I run that (no matter the padding) it gives me messed up geometry.


                            Screenshot 2023-03-20 at 11.15.19 AM.png

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

                              Cloth simulation relies heavily on real world dimensions and some small setting adjustments.

                              I could replicate your edge peek on the table cloth if quad grid resolution was 120 or below.

                              For the round cloth your input geometry for the cloth need drape friendly topology. Then with Adaptive Remeshing you'll get it to simulate correctly.

                              https://i.imgur.com/aTaX1UX.png

                              https://i.imgur.com/qxi3AIS.png

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

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                              • K Offline
                                kylekin Newcomers
                                last edited by

                                How did you set up the topology for the circle? Can't seem to find a plugin that will subdivide a circle in the way you're showing. Unless of course you just did it manually. Copy mode/rotate and copy/scale.

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

                                  I used Vertex Tools 2 to extrude and finally merge. But TIGs Split Tools would also do the same for you.

                                  Just use the native Offset Tool to create concentric rings and TIGs Split Donut tool in Split Tools to divide it.

                                  https://i.imgur.com/LWgEIn8.png

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                                  SketchUp Plugins | PluginStore | SketchUcation

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                                  If you have Sketchucation Tools 4.3.0 installed just search for split in the ExtensionStore and install it.

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

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

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                                  • pilouP Offline
                                    pilou
                                    last edited by

                                    And can make cool things! πŸ˜‰

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

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                                    • K Offline
                                      kylekin Newcomers
                                      last edited by

                                      Thank you Rich. I have that plugin. And thanks for all your help πŸ˜ƒ

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

                                        @kylekin said:

                                        Thank you Rich. I have that plugin. And thanks for all your help πŸ˜ƒ

                                        No problem. Happy draping!

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

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