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

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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
                      • My Add-ons: https://troikatronix.com/add-ons/?u=dusx
                      • Profession Services: https://support.troikatronix.com/support/solutions/articles/13000109444-professional-services

                      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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                                          • Fred
                                            Fred last edited by

                                            Ok here is an app that will do water ripples over an incoming syphon stream and send the results back out syphon. Make sure you have syphon working on your system and use the simple client and simple server apps to check out your setup. This is all GPU based and at SD PAL it runs 300fps for me. All parameters are controlled by OSC and save to XML if you want. I tested this a bit but I cannot really provide support as I am pretty busy now (I made it on a train racing against the clock as my battery died but did a bunch of testing and it seems pretty solid). The source code is there if you want to have a play but you will have to setup openframeworks and get the required addons to get it going. Of course as it is syphon it is mac only. There is an Izzy patch there as well to get you started. Needs core addons and some kind of video input but you could swap it for whatever you want.

                                            Please let me know if this is useful and if you are using it in a show- and of course let me know if it works.
                                            Fred
                                            http://goo.gl/vBLnX

                                            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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