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    Basic Physics Engine - Stage Edge Collision, with rebound / Gravity and Friction

    How To... ?
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    • jhoepffner
      jhoepffner last edited by

      Hello,

      I am currently working hard on the Isadora/Unity connection. researching on programming and understanding of C#.
      My project is principally linked ro real time 3D (geometrically exact) mapping with moving surface, more as anamorphosis opposed to corner pin. The project allow use of shifted beamers on complicated surfaces, via Syphon and OSC.
      The inherent possibilities inside Unity 3D concerning gravity, collisions etc. are huge! And that will be the next step to explore.
      I am preparing a demo and a communication on this material for the next London Isadora conference, any idea of a precise time?
      I would be very pleased to share some info with you on the question.
      All the best, Jacques

      Jacques Hoepffner http://hoepffner.info
      GigaByte 550b / Ryzen 7 3800X / Ram 64 Go / RTX 3090 24 Go / SSD 2 To / raid0 32 To
      MBP 13' i5 2.6 Ghz 16 Go / Intel Iris / macOs 10.11.6 / izzy 2.6.1 + 3.0.3b2
      MBP 15' i7 2.6 Ghz 16 Go / GTX 650M 1Go/ MacOs10.13.3 / Izzy 2.6.1
      MSI GS65 i7 3.6 Ghz 32 Go / GTX 1070 8 Go / Windows 10 / Izzy 3.0.3b2

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      • Marci
        Marci last edited by

        @DusX - Goblin Physics just caused Izzy to CTD whenever I tried to crowbar it in there. Dunno what was causing it. Abandoned it to play with CoffeePhysics... which I've had some success with, altho defining the bounds of the world to the bounds of the stage seems impossible. Look forward to seeing your Goblin Physics implementation.

        rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
        Warning: autistic - may come across rather blunt and lacking in humour!

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        • DusX
          DusX Tech Staff last edited by

          I am in contact with the dev. 
          I got it working, but collision is an issue.. (hard crash) The dev has been very helpful... so

          I hope to get further soon.
          BUT... I have box2Dweb working great! (no 3D sorry) I hope to have more news soon.

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          • Armando
            Armando Beta Gold last edited by

            Phisical Modelling (for pure data) port for Isadora is possible. The author is an old friend Cyrille Henry (Mark met him when I invited both on a workshop ar the Monaco Dance Forum in December..... 2004).

            Cyrille is an open source guy so everything is available for c people and for Javascript. Can't do any of them but here is a big help
            ready, set... [pmpd](https://puredata.info/downloads/pmpd)

            8596f5-pmpd.pdf


            Armando Menicacci
            www.armandomenicacci.net
            www.studiosit.ca

            Macbook pro 16 inches 2022 64 GB RAM, M1 MAX. OS 13 Ventura

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            • DusX
              DusX Tech Staff last edited by

              @Armando, thanks

              I will take a look at that.
              Where I am with this so far, 
              A proof of concept for 2D physics in Isadora :)
              https://youtu.be/nGRrwlWq14E

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              • Marci
                Marci last edited by

                @DusX: I got it working, but collision is an issue.. (hard crash) The dev has been very helpful... so

                _I hope to get further soon._

                Yep - that was about where I'd gotten to with it. Spotted the dev using the .on method in collision events to monitor his listeners and there my Goblin-fun stopped. It's only dependency is that it requires something to provide that event layer for collisions.

                Instead have spent some time adding weight to the NI Mate Skeleton (i.e.: adding 3d torso and limb objects to the skeleton output) - each individual object done in CInema4D so i can get out the mesh co-ords to throw into whatever ends up being suitable for 3D use, and chucked that all into an Izzy patch.
                So, I've got my 3D Avatar ready to place in the 3D space and collide with, all scalable to suit different builds of person, so that the collisions can occur with a suitable surface rather than a line with a static radius added.

                rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
                Warning: autistic - may come across rather blunt and lacking in humour!

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                • Marci
                  Marci last edited by

                  Modification of original patch - 10 x balls available. 3D position / collision / gravity / friction.

                  NB: Collision point is still unfortunately) centre point of each ball, not surface point, mainly because at this stage the radius / diameter of each ball is determine by the ALL scale value on each 3D Player which comes after the JS. AND, balls still don't come to an actual stop. Zip file contains Ball and Plane OBJ files.

                  56cb84-physics2.izz 4a52c8-3d-objects.zip

                  rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
                  Warning: autistic - may come across rather blunt and lacking in humour!

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                  • Skulpture
                    Skulpture Izzy Guru last edited by

                    http://www.creativeapplications.net/processing/kinect-physics-tutorial-for-processing/

                    The video in this is amazing!

                    Graham Thorne | www.grahamthorne.co.uk
                    RIG 1: Windows 11, AMD 7 Ryzen, RTX3070, 16gig RAM. 2 x M.2 SSD. HD. Lenovo Legion 5 gaming laptop.
                    RIG 2: Windows 11, Intel i19 12th Gen. RTX3070ti, 16gig RAM (ddr5), 1x M.2 SSD. UHD DELL G15 Gaming laptop.
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                    • DusX
                      DusX Tech Staff last edited by

                      Hmm.. I need a connect.

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                      • Michel
                        Michel Izzy Guru last edited by

                        @DusX

                        Or a Persee for the long run. I have ordered one.

                        Best Michel

                        Michel Weber | www.filmprojekt.ch | rMBP (2019) i9, 16gig, AMD 5500M 8 GB, OS X 10.15 | located in Winterthur Switzerland.

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                        • DusX
                          DusX Tech Staff last edited by

                          too late for the indiegogo campaign

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                          • Michel
                            Michel Izzy Guru last edited by

                            yep, it finished a few days ago.

                            Michel Weber | www.filmprojekt.ch | rMBP (2019) i9, 16gig, AMD 5500M 8 GB, OS X 10.15 | located in Winterthur Switzerland.

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                            • Marci
                              Marci last edited by

                              @DusX if you weren't in Canada I'd send you over one of mine...!

                              rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
                              Warning: autistic - may come across rather blunt and lacking in humour!

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                              • DusX
                                DusX Tech Staff last edited by

                                Where are you @Marci ?

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                                • Marci
                                  Marci last edited by

                                  Near Leeds, UK. @skulpture - I tried that Processing sketch this evening. Sadly many outdated modules and deprecated functions so a bit of rewriting to get it running with the modern replacements - not quite there yet. I want to use it to get the polygon vectors for the kinect's silhouette - that could then be handed to Izzy's JS actor via OSC, and give us the missing complex polygon mapped to Kinect user outline.

                                  rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
                                  Warning: autistic - may come across rather blunt and lacking in humour!

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                                  • Skulpture
                                    Skulpture Izzy Guru last edited by

                                    Ah that's a shame. I was working my way through it too. Got the first example working. Basic rgb/ir one.

                                    Graham Thorne | www.grahamthorne.co.uk
                                    RIG 1: Windows 11, AMD 7 Ryzen, RTX3070, 16gig RAM. 2 x M.2 SSD. HD. Lenovo Legion 5 gaming laptop.
                                    RIG 2: Windows 11, Intel i19 12th Gen. RTX3070ti, 16gig RAM (ddr5), 1x M.2 SSD. UHD DELL G15 Gaming laptop.
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                                    • DusX
                                      DusX Tech Staff last edited by

                                      @skulpure With nimate can you get a set of xy points for body parts and joints?

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                                      • Marci
                                        Marci last edited by

                                        Yep. xyz for head, neck, l-shoulder, r-shoulder, l-elbow, r-elbow, l-hand, r-hand, torso, l-hip, r-hip, l-knee, r-knee, l-foot, r-foot. That's the 'basic' skeleton from NIMate1. NIMate2 adds in finger joints and a few other bits n' bobs.

                                        rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
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                                        • DusX
                                          DusX Tech Staff last edited by

                                          Thats great, thanx.

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                                          • Marci
                                            Marci last edited by

                                            Here you go... as you can see, typical stick figure configuration & semi-typical usage. Zip file contains patch, user actor from elsewhere on the forums, & .3ds objects for the 3D dummy.426e76-kinect.jpg 96ffb8-archive.zip

                                            rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
                                            Warning: autistic - may come across rather blunt and lacking in humour!

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