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    Sketchy Physics Contest

    Scheduled Pinned Locked Moved SketchyPhysics
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    • C Offline
      CPhillips
      last edited by

      @unknownuser said:

      Ok, so I'm playing around with my bridge destroying it, throwing the car around, etc. when I come up with the idea of rendering the bridge, and once I had a nice render of it I couldn't help but make one of it destroyed πŸ˜„ .

      These renders are pretty sweet. I assume it is Kerkthea?

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      • A Offline
        architectboy
        last edited by

        Yep, that's Kerkythea (you forgot the y). Are you working on yours, CPhillips?

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        • C Offline
          Charlie__V
          last edited by

          Convexhull:
          Is this simply a cube (re-assinged to covexhull)and the form adjusted as necessary?
          Forgive me if I have missed something obvious.

          C

          Precision M1710/Win 7 Pro 64 bit/i-7 6920 Quad core 2.9 Ghz -3.8/16Gb ram/NVIDIA M5000M 8Gb

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          • C Offline
            CPhillips
            last edited by

            @unknownuser said:

            Convexhull:
            Is this simply a cube (re-assinged to covexhull)and the form adjusted as necessary?
            Forgive me if I have missed something obvious.

            C

            It doesnt have to be a cube. Any shape will work. The easiest way to imagine a convex hulled object is to picture it wrapped in plastic. Here is a more detailed explanation:

            http://www.rustycode.com/tutorials/convex.html

            If you want to see what the physics engine thinks an objects shape is:Right click the object and select Debug->Readback Collision Geometry. Then press play.

            Chris

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            • C Offline
              Charlie__V
              last edited by

              Chris,

              Thanks for the info....and Thanks for a Really Cool Script :~)

              C

              Precision M1710/Win 7 Pro 64 bit/i-7 6920 Quad core 2.9 Ghz -3.8/16Gb ram/NVIDIA M5000M 8Gb

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              • W Offline
                Will03
                last edited by

                Hey guys,

                This is my first time using this script, and I think i might not be adhering to all the rules of the program, but nonetheless here is my submission.

                Thank you for this great program! I love it!


                Will03Bridge.skp

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                • A Offline
                  architectboy
                  last edited by

                  The problem with your bridge is that it uses 18 static parts (see rule #3) which make it impossible to tear down the bridge (try it), those parts are the joints. Joints, by default, are static, but if you make them not static they just fall. So you must leave them static and group them with one of the objects that it is connected with. Just take a look at this revision of your bridge.


                  Will03BridgeLegal.skp

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                  • W Offline
                    Will03
                    last edited by

                    oh cool, thanks for the hand! that makes a lot of sense now... I'll have to make a bigger and better bridge now...

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                    • A Offline
                      architectboy
                      last edited by

                      Go for it! and that goes for anyone else who wants to build a bridge for this contest.

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                      • C Offline
                        CPhillips
                        last edited by

                        Not quite the same thing. But this guy did a bridge! πŸ˜„

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                        • S Offline
                          SpaceCow
                          last edited by

                          Hey, was wondering if this was a legitimate bridge. There are hinge joints inside the triangular prism blocks... They are attached to a couple of things to simulate being attached to another piece(s). I could make the whole bottom a box, but that's not accurate.


                          bridge.skp

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                          • L Offline
                            LilDood
                            last edited by

                            My entry, only hinges, witchcraft πŸ˜„


                            Witchcraft

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                            • J Offline
                              Julius
                              last edited by

                              so, basically, the first one is the best, but i think it infringes the rule about the large scale grouping, while the second one shouldn't. the second it's bad looking but it works.

                              anyway, i'm not an advanced user of scketchup, maybe i'll try a better bridge later.

                              someone can tell me why in the second one a grouped object takes off?


                              SketchyPhysicsBridge-by_Julius.skp


                              SketchyPhysicsBridge-by_Julius_2.skp

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                              • J Offline
                                Julius
                                last edited by

                                is there anybody out there?

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                                • A Offline
                                  architectboy
                                  last edited by

                                  Nope, nobody was out there. But now that I'm back...
                                  The reason that you're bridge section moves is that convex-hull is convex, like it's been shrink wrapped. The only way that I could get around that was to make each individual line of the inside curve a different object, then group them all.

                                  By the way, you can forget about the rules if you want. Just make your bridge cool and breakable.

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                                  • J Offline
                                    Julius
                                    last edited by

                                    thank you! now we can make cool things with the new version of SP!

                                    1 Reply Last reply Reply Quote 0
                                    • J Offline
                                      jFerg
                                      last edited by

                                      I realize I missed out on the timing for this a little bit, but I just discovered Sketchy Physics (which is amazing) and I desided to add my bridge up here. I believe it is the first suspension bridge. It moves terrible slow because the number of joints and groups, but check it out.


                                      Suspension Bridge.skp

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                                      • V Offline
                                        Verrou
                                        last edited by

                                        Ok, this is so noob. But how do you build the bridges with arches that have the sloped bricks? Because when I make them they pop upwards because of their shape. If that makes any sense and know what I'm doing wrong please tell me ;D

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                                        • C Offline
                                          Click Draw
                                          last edited by

                                          Good day Sketchy People,

                                          Is the contest still on?

                                          Jeff

                                          Have I mentioned how much of a laugh I get out of some of the Signatures on here!

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