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    Circular motion of a still image

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

      thanks you guys

      i thought of both those actors -- sometimes it's so time-consuming playing trial and error, that it's just good to be reassured that i'm not wasting my time with the wrong tools! now back at it... : )
      many thanks

      iMac 2.66 GHz Intel Core i5, 8 GB RAM, OS X 10.7.4, Isadora Core 1.3.25

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      • vanakaru
        vanakaru last edited by

        Try feed wave generator or envelope into curvature XY to make track change real time.

        MBP 4.1 & MBP (Retina, Mid 2012) MBP Retina 2017

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        • DusX
          DusX Tech Staff last edited by

          Another possible option, depending on what sort of composition you are creating is to use the 3d rect projector. You can control loads of params, and could easily create the circular motion you are looking for, it would also put the processing onto the gpu leaving you more cpu for other things.

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          • vanakaru
            vanakaru last edited by

            @DuscX

            Are you sure about this: ” it would also put the processing onto the gpu leaving you more cpu for other things.”
            And I do not see any easy way to create a circular motion in Isadora.
            Now if I try this in After Effects then nothing could be more easy indeed. I am not sure what @raha project will need in terms of control but I would make a movie in AE with circular motion and manipulate speed and zoom(scale) with Isadora. Then video playback would be on GPU as well and everything may work smoother.

            MBP 4.1 & MBP (Retina, Mid 2012) MBP Retina 2017

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            • dbini
              dbini last edited by

              2 sine wave generators, identical, apart from one with a phase of 75, and triggered simultaneously will give a circular motion when one is fed to one plane, and the other to a perpendicular plane. i discovered this yesterday when i needed to draw a 2d circle with a point of light.

              John Collingswood
              taikabox.com
              2019 MBPT 2.6GHZ i7 OSX15.3.2 16GB
              plus an old iMac and assorted Mac Minis for installations

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              • DusX
                DusX Tech Staff last edited by

                @Vanakaru, dbini read my mind. Playing with 2 sine waves can create a number of circular fxs. As far as the GPU that has been my experience, although I have no test data to show.. I can see that my GPU usage meter increases when I use the 3d projectors, while it remains inactive when I use regular projectors.

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                • DusX
                  DusX Tech Staff last edited by

                  Here's a quick sample of a couple round movements.
                  The first using the regular projector is near a circle, needs a little more tweaking in the curvature actor, but you get the idea.

                  6f0541-circmoves.izz

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                  • Armando
                    Armando Beta Gold last edited by

                    Or you can record mouse x and y position with data array with the mouse and feed movement with position played by data array.

                    Armando Menicacci
                    www.studiosit.ca
                    MacBook Pro 16-inch, 2021 Apple M1 Max, RAM 64 GB, 4TB SSD, Mac OS Sonoma 14.4.1 (23E224)

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                    • vanakaru
                      vanakaru last edited by

                      @Armado

                      I like that. I was thinking of using Data Array Actor and getting data from AE. But this is just great for complex movement.
                      @DusX It works if I change the phase to 75(instead of 50) just like dbini suggested.
                      Geat exercise BTW!

                      MBP 4.1 & MBP (Retina, Mid 2012) MBP Retina 2017

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                      • DusX
                        DusX Tech Staff last edited by

                        Thats funny.. I could have sworn that I saved the file with phases set correctly.. weird.
                        In any case I updated the file just for kicks.

                        6a5f77-circmoves.izz

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                        • raha
                          raha last edited by

                          @vanakaru

                          i ended up getting After Effects and as you said -- so easy! 
                          however, i'm still having trouble smoothly adjusting speed and intensity when i bring the files into Izzy. but i'll start that conversation elsewhere.

                          iMac 2.66 GHz Intel Core i5, 8 GB RAM, OS X 10.7.4, Isadora Core 1.3.25

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