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    [ANSWERED] Modify a shape with hand tracking

    How To... ?
    hand tracking tracking openni kinect shapes
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    • E
      Elena last edited by Woland

      Hello everybody,

      I am trying to modify the dimensions of a rectangle shape created with Isadora using my hand. 

      I am researching around and intuitively I would use OPENNI tracker to track my hand and then hook up the motion to the width and height dimensions but, because I don't have a Kinect compatible with the plugin, before I buy it I would like to know if there is a better way, and even if this method can be successful.


      I would also love to know if there is a way to modify the anchor point of a shape. 

      Thanks

      elena

      MacBook Pro M3 Max
      32GB Ram
      Sonoma 14.6.1

      jfg J DusX Woland 5 Replies Last reply Reply Quote 0
      • jfg
        jfg @Elena last edited by

        @elena

        you can try with the Eye or Eye++ actor. Marc made a good tutorial about it.

        best

        Jean-François

        • Izzy 3.2.6
        - MacBook Pro M1 Max 16" 64GB RAM, Mac OS 15.3.2 Sequoia
        - Mac Pro 5.1 middle 2012 (3,33 GHz 6-Core Intel Xeon, 32GB RAM, Radeon RX 580 8 GB ),
        Mac OS 10.14.6 (Mojave)
        - Mac mini Pro M4, Mac OS 15.3.2 Sequoia

        • A range of deployable older Macs
          Located in Bremen, Germany
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        • jfg
          jfg @Elena last edited by jfg

          @elena

          to change the anchor point of a shape you can use the FFGLPanSpinZoom actor (spin ctrl x and spin ctrl y). It is not a real anchor point but could simulate it.

          best

          Jean-François

          • Izzy 3.2.6
          - MacBook Pro M1 Max 16" 64GB RAM, Mac OS 15.3.2 Sequoia
          - Mac Pro 5.1 middle 2012 (3,33 GHz 6-Core Intel Xeon, 32GB RAM, Radeon RX 580 8 GB ),
          Mac OS 10.14.6 (Mojave)
          - Mac mini Pro M4, Mac OS 15.3.2 Sequoia

          • A range of deployable older Macs
            Located in Bremen, Germany
          E 1 Reply Last reply Reply Quote 0
          • E
            Elena @jfg last edited by

            @jfg said:

             thank you for both the comments. The Eye++ seems perfect.

            MacBook Pro M3 Max
            32GB Ram
            Sonoma 14.6.1

            Bennnid 1 Reply Last reply Reply Quote 0
            • Bennnid
              Bennnid @Elena last edited by

              @elena

              did you try leap motion? 
              it could be quite efficient for getting precise fingers/hands coordinates... and it's really cheap 2nd hand now...
              bests

              MBP 2019- 16' (16,1) i9 2,3 GHz, 32 Gb /Radeon pro 5550M 8GBram/ OSX 10.15.3
              Equip.: kinect 360 1414/ Leapmotion / Myo Armband /Wiimotes/ Saitek Joysticks ( X, evo, throttle) /Ipad / enttec dmx usb pro

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              • J
                jandraka @Elena last edited by

                @elena

                Hi,

                Take a look at this app HandPose OSC.

                MBP M2 Max 32 GB. MacOS 13.7.3 Isadora 3.2.6 - 4.0.7

                1 Reply Last reply Reply Quote 1
                • DusX
                  DusX Tech Staff @Elena last edited by

                  @elena said:

                  modify the dimensions of a rectangle shape

                   You should be able to set the width and height, as well as, rotation and XY location all via hand tracking.
                  I have done similar for a 3D cube in Isadora as a test project some time ago, using the Kinect 2 for tracking.

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                  • Woland
                    Woland Tech Staff @Elena last edited by

                    @elena said:

                    I would also love to know if there is a way to modify the anchor point of a shape. 

                     Take a look at my answer in this thread, you may find it, and some of the methods I discuss, to be helpful. There's also a Guru Session that Mark did which covers this topic.


                    You may also find this (as of yet unreleased) motion tracking mini-tutorial I've made to be helpful. (It's bundled with another mini-tutorial on alpha masks, but the motion tracking one will be the one you'll want to look at for this particular topic.)


                    @Elena said:

                    I am researching around and intuitively I would use OPENNI tracker to track my hand and then hook up the motion to the width and height dimensions but, because I don't have a Kinect compatible with the plugin, before I buy it I would like to know if there is a better way, and even if this method can be successful.

                    If you do end up going the Kinect and OpenNI route, you will want to check out the OpenNI Tracker Tutorial and download the OpenNI Plugins from our Plugin Page.


                    @jfg said:

                    to change the anchor point of a shape you can use the FFGLPanSpinZoom actor (spin ctrl x and spin ctrl y). It is not a real anchor point but could simulate it.

                    This plugin doesn't come with a fresh install of Isadora. You'll need to download the TroikaTronix FFGL plugins from our plugin page and install them if you want to use them. Personally, I use FFGLPanSpinZoom all the time because it's more convenient than using both a Zoomer actor + Panner actor + Spinner actor.


                    Best wishes,

                    Woland

                    TroikaTronix Technical Support
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