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    Getting Started - How do I use Effects with Motion Capture?

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    • jessefryery
      jessefryery last edited by

      Hey,

      Thank you so much! That was a great help to get me going. I have been running into the problem with my camera also picking up the projections. Is their a specific kind of InfraRed camera you would recommend getting?

      Thanks so much,

      Jesse

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      • MatthewH
        MatthewH Beta Tester last edited by

        I would seriously consider using a Kinect for the tracking as long as the range limitations work out. All the tracking work has already been done for us with the Kinect so you are going to have a much easier time than with an IR camera and illuminators.

        Matthew Haber :: matthewhaber.com :: besidedigital.com :: Download my actors: http://www.matthewhaber.com/isadora-actors

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        • Skulpture
          Skulpture Izzy Guru last edited by

          Matthew is one step ahead of me! The best and most affordable method is indeed the kinect camera. It solves 99% of your problems. Where you position it for distance it's and angle need consideration though.

          Graham Thorne | www.grahamthorne.co.uk
          RIG 1: Custom-built PC: Windows 11. Ryzen 7 7700X, RTX3080, 32G DDR5 RAM. 2 x m.2.
          RIG 2: Laptop Dell G15: Windows 11, Intel i9 12th Gen. RTX3070ti, 16G RAM (DDR5), 2 x NVME M.2 SSD.
          RIG 3: Apple Laptop: rMBP i7, 8gig RAM 256 SSD, HD, OS X 10.12.12

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          • H
            hanslas last edited by

            Hi Jesse,

            I tried to figure out how to create artificial water ripples. attached is the result. The comment are n dutch, but i guess it's all rather self-explanatory. It's based on overlapping blurred ovals that form the input of a displace actor. You can use a tracker to manipulate the zoomer values
            Maybe it can be of some help for you.

            Best wishes,
            Hans
            9acdc0-waterreflectie.izz

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            • mark
              mark last edited by

              Jesse wrote me through the support form, and this was my response.

              ---------
              Dear Jesse,

              Well, this kind of interactive water effect has mostly been accomplished by some of the top practitioners in the field -- and usually because they can write their own C or C++ code. It is not an effect that is built in to Isadora -- especially if you wish to make it look super real.

              But, one effect you can play with is the Displace actor. Put your video source into the top input. Then, in the second input, add a video that simulates some ripples. Try using the attached movie, called drops-center.mov to get started. The brightness of the second image "displaces" the first, simulating the water drop effect. The idea would be to have multiples of this movie -- or something like it -- combined with the MultiMix actor and fed into the second input of Displace at the same time.

              Perhaps you can invent other ways to use the movements of the dancer to cause this to happen. You should investigate the Difference actor for example.

              Then there is the issue of tracking the position of the dancer, so that he/she can influence the image. This is also requires some special lighting and hardware. This is also pretty sophisticated stuff if you've never done it before. It requires flooding the space with infra-red light and using an infra-red sensitive camera -- along with a technique called "background subtraction" to find the position of the dancer. Unfortunately, this is simply too complex for me to help you with here.

              Do search the TroikaTronix forum at http://troikatronix.com/troikatronixforum/ as well as the old forum archive at http://forum.troikatronix.com/ -- there you should find some more information about IR tracking.

              And, for any continued discussion on this topic, please join the new forum and post your questions there. Then, when your questions are answered, everyone in the community benefits. OK?

              Best Wishes,
              Mark

              20a128-drops-center.mov.zip

              Media Artist & Creator of Isadora
              Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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              • jessefryery
                jessefryery last edited by

                Hello Everyone,

                I can't thank you enough for your help and suggestions. They have been such a great help in leading us in the right direction! I'll be sure to post our results on the forums!

                Sincerely,
                Jesse

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                • Fred
                  Fred last edited by

                  Here is something I found when looking for the same kind of thing. It is the basic concept of water ripples over an image. It is for OSX and now is standalone. You can move the water with the mouse. I can hook this up to syphon and osc if you are interested in using it (you can send the background a stream over syphon and send the coordinates of the displacement via osc.

                  Fred

                  54d615-water-example.zip

                  http://www.fredrodrigues.net/
                  https://github.com/fred-dev
                  OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
                  Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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                  • Michel
                    Michel Izzy Guru last edited by

                    @Fred

                    Just wanted to say thank you for sharing your time intense researches and coding skills.

                    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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                    • Skulpture
                      Skulpture Izzy Guru last edited by

                      That's great @Fred.

                      Thanks for sharing.

                      Graham Thorne | www.grahamthorne.co.uk
                      RIG 1: Custom-built PC: Windows 11. Ryzen 7 7700X, RTX3080, 32G DDR5 RAM. 2 x m.2.
                      RIG 2: Laptop Dell G15: Windows 11, Intel i9 12th Gen. RTX3070ti, 16G RAM (DDR5), 2 x NVME M.2 SSD.
                      RIG 3: Apple Laptop: rMBP i7, 8gig RAM 256 SSD, HD, OS X 10.12.12

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                      • DusX
                        DusX Tech Staff last edited by

                        sounds fun.. never for windows though.

                        Troikatronix Technical Support

                        • New Support Ticket Link: https://support.troikatronix.com/support/tickets/new
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                        Running: Win 11 64bit, i7, M.2 PCIe SSD's, 32gb DDR4, nVidia GTX 4070 | located in Ontario Canada.

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                        • Fred
                          Fred last edited by

                          @hanslas
                          Wow, I would never have tried to do that in izzy but you made a pretty fine attempt at water there!! Where in the Netherlands are you?

                          http://www.fredrodrigues.net/
                          https://github.com/fred-dev
                          OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
                          Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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                          • Michel
                            Michel Izzy Guru last edited by

                            @hanslas
                            thats true what Fred says, and for jessefryery if you conect the stage mouse watcher to the shapes horz and vert position, limit their input to -50 and +50 you can position the center of the ripple via mouse.

                            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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                            • bruper
                              bruper last edited by

                              @Fred, thank you for sharing, that's great,
                              did you do it on Processing, or?

                              17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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                              • Fred
                                Fred last edited by

                                I made this with openframeworks.

                                http://www.fredrodrigues.net/
                                https://github.com/fred-dev
                                OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
                                Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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                                • bruper
                                  bruper last edited by

                                  @Fred, your proposition of hooking up to syphon and osc your water-moves is great, could you do it please?

                                  17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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                                  • Fred
                                    Fred last edited by

                                    I will try to find the time, I am super busy with a show at the moment. It will take a bit of your juice though, check what resolution you can send and recieve over syphon while keeping the rest of your system going. I may get a chance to look at this mid to late next week.

                                    Fred

                                    http://www.fredrodrigues.net/
                                    https://github.com/fred-dev
                                    OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
                                    Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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                                    • bruper
                                      bruper last edited by

                                      @Fred, thanks, that looks promising, I'm using syphon fine in different resolutions (but I'm sending max 720 vertical to projectors) with processing and QC, using osculator with wii and kinect, never used openframeworks...

                                      17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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                                      • bruper
                                        bruper last edited by

                                        @Fred, I fund out that there are 3 lines for Syphon implementation in openframeworks, if you like I could get it to you, or if you would send your patch, I have someone that could implement the syphon in your patch, we are still in research mode for openframework osc in Mac

                                        17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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                                        • Fred
                                          Fred last edited by

                                          You can make as many syphon channels as you like with OF, I have used 8 no probs. Openframeworks comes with OSC ready to go check the examples. You can get this effect going if you search for the ofxFx addons. If your going to get this going yourself this is all you need. I was saying before to check the capability of your machine that it can run these syphon channels and the Izzy patch you use. Best of luck Fred

                                          http://www.fredrodrigues.net/
                                          https://github.com/fred-dev
                                          OSX 13.6.4 (22G513) MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
                                          Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD

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                                          • bruper
                                            bruper last edited by

                                            @Fred, thanks. we could try if you would kindly share the code of your patch :)
                                            best regards

                                            17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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