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

    How To... ?
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    • DusXD
      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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      • ArmandoA
        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.studiosit.ca
        www.armandomenicacci.net

        Macbook pro 16 inches 2022 64 GB RAM, M1 MAX. OS 14 Sonoma

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        • DusXD
          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

          Troikatronix Technical Support

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          • MarciM
            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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            • MarciM
              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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              • SkulptureS
                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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                • DusXD
                  DusX Tech Staff
                  last edited by

                  Hmm.. I need a connect.

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                  • MichelM
                    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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                    • DusXD
                      DusX Tech Staff
                      last edited by

                      too late for the indiegogo campaign

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                      • MichelM
                        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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                        • MarciM
                          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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                          • DusXD
                            DusX Tech Staff
                            last edited by

                            Where are you @Marci ?

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                            • MarciM
                              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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                              • SkulptureS
                                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.
                                RIG 3: Apple rMBP i7, 8gig RAM 256 SSD, HD, OS X 10.12.12

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                                • DusXD
                                  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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                                  • MarciM
                                    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
                                    Warning: autistic - may come across rather blunt and lacking in humour!

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                                    • DusXD
                                      DusX Tech Staff
                                      last edited by

                                      Thats great, thanx.

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                                      • MarciM
                                        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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                                        • MarciM
                                          Marci
                                          last edited by

                                          @skulpture - after spending 2 nights trying to get the processing sketches going with naff all success other than the first step, I finally stumbled across a forum post by the author of the article, which eventually led me to this: https://github.com/msp/CANKinectPhysics

                                          Updated for Processing 2.11 - Just tested it, and works perfectly once you've got the necessary libraries in place:
                                          • blobDetection
                                          • box2d_processing
                                          • SimpleOpenNI
                                          • toxiclibscore*
                                          • toxiclibs_p5*
                                          • verletphysics*
                                          • volumeutils*
                                          • colorutils*
                                          • audioutils*
                                          * - part of ToxicLibs020 which you'll have to download from https://bitbucket.org/postspectacular/toxiclibs/downloads/, and shunt the folders above from within the download into the libraries folder in Documents/Processing (if you're using everything from default locations).
                                          IMPORTANT: You MUST be using Processing 2.x, not 3.x!!

                                          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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                                          • MarciM
                                            Marci
                                            last edited by

                                            PS: If you haven't discovered KVL_Kinect_tracker_v20 it's worth a look. Allows you to subtract layers from the Kinect Depth Image, and output the resultant blobs for the target depth (i.e.: that where the body is) via OSC.

                                            I've tried it but it appears flakey on my MBP... locks up after 30 seconds or so - I suspect this is due to USB3 and the app not being updated to limit the bandwidth to USB2, so if you've got a _non-USB3_ MBPro, this _should_ work to get a body outline into Izzy that can drive a pile of shapes actors or similar. (I'll remember to bring my 2011 MBPro home from work at some point to test this theory).

                                            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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