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    slit scan ++ or any other pixel sorting way?

    How To... ?
    pixel sorting lines glitch shaders ffgl
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    • Bennnid
      Bennnid last edited by Woland

      Hi , I 'm a big fan of slit scan actor, would you know any other shaders or ffgl allowing to modify some more parameters like speed, size of slices, etc.? 

      I remember one of that style with x y parameters but it was just real time slices of pixel color, not recording as this one...

      thanks a lot.

      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

      Woland 1 Reply Last reply Reply Quote 1
      • Bennnid
        Bennnid last edited by Bennnid

        Hi little up, I scrolled  my entire GLSL shaders and iSF converted library but couldn't find a "slit scan" style actor that I could try to edit... any idea? thanks a lot ! 

        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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        • CitizenJoe
          CitizenJoe last edited by

          I just Googled "slit scan ffgl" and came up with a bunch of potentially interesting results. Don't know if they'll lead anywhere, but give it a shot!

          Cheers,

          Hugh

          Hugh in Winnipeg - All test machines, Win10/11 Pro, 64 bit, OS SSD and separate data SSD.
          Dell 7560, i9 11950H, 64 gigs, NVIDIA RTX A4000 w/8 GB GDDR6

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

            thx @CitizenJoe I did search in shader toy but this one I can't compile...`if y ou have an idea ;) Bests

            https://www.shadertoy.com/view...

            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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            • Juriaan
              Juriaan Tech Staff last edited by

              Hi there, 

              The texture command doesn't exist in the version that Izzy uses.

              @mark 

              Any idea about what version you use for the Shader compiler ? I get an error stating that I need atleast version 130 to compile the texture command.

              Isadora 3.1.1, Dell XPS 17 9710, Windows 10
              Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
              Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

              1 Reply Last reply Reply Quote 0
              • Juriaan
                Juriaan Tech Staff last edited by Juriaan

                Okay.. I did some digging and I rewrote the shader partly so it works with Izzy

                https://gist.github.com/Juriaa...

                Please be aware that you need to download the texture from ShaderToy and put that inside an Picture player (Attach it to Video input 1)

                Also this code is done in 10 minutes, it might not be accurate to the actual shader. Will address this when I have more time and I don't have shows coming up :) This weekend most likely.

                Isadora 3.1.1, Dell XPS 17 9710, Windows 10
                Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
                Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

                1 Reply Last reply Reply Quote 1
                • Bennnid
                  Bennnid last edited by

                  Hey @Juriaan thanks a lot, I had a look and it works fine with the picture but I expected it to work with video input too...;-( there's a result but it's a bit hard to get the same possibilities as slit scan...

                  thanks though ! 

                  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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                  • Juriaan
                    Juriaan Tech Staff last edited by

                    You can just attach a video input to it.. Have you tried it ?

                    Isadora 3.1.1, Dell XPS 17 9710, Windows 10
                    Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
                    Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

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

                      yes of course but it's a bit random style I don't really see as clearly as slit scan, which row or line ( or diagonal here) of pixel makes the painting...

                      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

                      1 Reply Last reply Reply Quote 0
                      • Juriaan
                        Juriaan Tech Staff last edited by

                        Okay, if you can provide an example of what you want we might be able to find an other alternative.

                        Isadora 3.1.1, Dell XPS 17 9710, Windows 10
                        Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
                        Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

                        Bennnid 1 Reply Last reply Reply Quote 0
                        • Woland
                          Woland Tech Staff @Bennnid last edited by

                          @bennnid

                          Have you tried playing with any of these?

                          https://community.troikatronix.com/topic/6474/some-new-glsl-effects

                          TroikaTronix Technical Support
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                          Bennnid 1 Reply Last reply Reply Quote 0
                          • Bennnid
                            Bennnid @Woland last edited by

                            @Woland yes I tried all idlab and isf converted shaders but could not find one equivalent with more input than slit scan !

                            I'd need it smoother intact, to be able to size the lines frequency... 

                            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

                            1 Reply Last reply Reply Quote 1
                            • Bennnid
                              Bennnid @Juriaan last edited by Bennnid

                              @Juriaan 

                              uriaan I'm searching for something smoother than isa slit scan actor where I could change the rate of slits François Vogel made cool things with AE tools...
                              https://www.instagram.com/p/CA...
                              I'm wondering if how it's possible to make it happen in real time but I guess so cos he's also doing live installations

                              https://www.francoisvogel.com/...
                              this last one is quite stunning relationship with time and space ! 

                              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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                              • Bennnid
                                Bennnid last edited by

                                @mark  do you know if it would be possible to add a speed parameter to slit scan actor?

                                thx ! 

                                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

                                Woland 1 Reply Last reply Reply Quote 0
                                • Bennnid
                                  Bennnid last edited by

                                  here's a fun video with slit scan https://www.instagram.com/p/CC...

                                  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

                                  Skulpture Woland 2 Replies Last reply Reply Quote 3
                                  • Skulpture
                                    Skulpture Izzy Guru @Bennnid last edited by

                                    @bennnid said:

                                    here's a fun video with slit scan https://www.instagram.com/p/CC...

                                     Love this! Simple but effective. 

                                    Graham Thorne | www.grahamthorne.co.uk
                                    RIG 1: Custom-built PC: Windows 11. Ryzen 7 7700X, RTX3080, 32G DDR5 RAM. 2 x m.2.
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                                    • Woland
                                      Woland Tech Staff @Bennnid last edited by

                                      @bennnid said:

                                      here's a fun video with slit scan https://www.instagram.com/p/CC...

                                       That's awesome, do you mind if TroikaTronix shares it on our social media as well?

                                      TroikaTronix Technical Support
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                                      Bennnid 2 Replies Last reply Reply Quote 1
                                      • Bennnid
                                        Bennnid @Woland last edited by Bennnid

                                        @Woland thanks a lot, I think I'm going to do a better one to share, this was only a 1st test;-)
                                        BTW do you know a way to get the FaceTime HD cam on MBP16' to manual brightness and focus? I tried webcam settings from Liang-Hsin Chen (mactaris@mac.com). But couldn't find a way to make it work with Catalina ( I guess authorization problem as for many soft since security "enhancement"...
                                        @mark, I found a way to change speed of slit scan by combining slit scan with matte++ to transform resolution allowing gaining speed, if there is another way let me know ;-) (see patch)
                                        In this version matte++ helps a lot to speed up slit scan drawing but I got some stairs when the frame moves to fast, so not solving a 100%...,could we be able to change slit scan speed, refresh, and quality?
                                        other problems;
                                        1) side scroller and flip GLSL makes a bad looking line junction when mirroring breaking the effect any better actor for that? 
                                        2) I'm wondering how to mix my layers in the better way to get a continuity... crop? effect mixer? I also tried alpha mask with blurred square from shapes to get a softer edge but I feel it's making a "dark" junction...
                                        What compositing technique would you use? Is there a blur edge actor you like? 
                                        3) How is it possible to use a video delay more than 1000 frames? ( I know it's really ram consuming but I have a lot... ), I tried though capture to disk but can't read on a writing file,. buffer could be a solution for more than 1000 frames?

                                        Thanks for your remarks and help!slitiza.izz

                                        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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                                        • Woland
                                          Woland Tech Staff @Bennnid last edited by

                                          @bennnid said:

                                          do you know if it would be possible to add a speed parameter to slit scan actor?

                                          I forgot to say that I recorded this as a feature request.


                                          @Bennnid said:

                                          1) side scroller and flip GLSL makes a bad looking line junction when mirroring breaking the effect any better actor for that? 

                                          I'm not entirely sure I understand your description, but I'd suggest just experimenting with combining actors to see if you can get the desired effect. Also "Side Scroller and Flip" is not one of our GLSL or FFGL plugins from the TroikaTronix pack so I don't have it and can't see what it's supposed to do when I open your patch. Is this a third-party plugin?


                                          @Bennnid said:

                                          2) I'm wondering how to mix my layers in the better way to get a continuity... crop? effect mixer? I also tried alpha mask with blurred square from shapes to get a softer edge but I feel it's making a "dark" junction...
                                          What compositing technique would you use? Is there a blur edge actor you like? 

                                          Again I can't see what your patch is supposed to do because of the missing plugin so I don't quite understand what the issue is. You can mix multiple layers by setting two or more Projector actors' 'blend' mode inputs to "transparent", setting the layer to different numbers (higher numbers will be in front), and then feeding your different content to those different Projector actors. 

                                          Try Effect Mixer, Multimix, Contrast Adjust, HSL Adjust, Edge Blend Mask, TT Edgeblend (GLSL), TT Highlights and Shadows (GLSL), other TT GLSL Shaders, the TT FFGL effects, and all the video effects. 

                                          If you've got a dark spot you could try making a crop of just that area and sending it to the right place on the Stage with additive blending and adjust the contrast of that sliver until it's no longer dark.


                                          @Bennnid said:

                                          3) How is it possible to use a video delay more than 1000 frames? ( I know it's really ram consuming but I have a lot... )

                                          Proceed at your own risk (your computer may REALLY not like this) but you could chain together multiple Video Delay actors set to 1000 frames. (Note you will need to wait for 2000 frames until you'll actually see any video output because they won't have anything to display until the 1st frame from your video source is pushed all the way through by new frames and becomes the 2001st frame. Thus, if you're doing this live, know that you'd need to start video capture through these actors 66.7 seconds [assuming 30fps capture rate] BEFORE you want to project the result because from the time you start capture, the first frame to get through the 2000 frames of video delay will come at 66.7 seconds.)

                                          TroikaTronix Technical Support
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                                          • Bennnid
                                            Bennnid @Woland last edited by

                                            @woland
                                            thanks for adding my request;-) (sorry next time I 'll go straight there ! )
                                            for side scroller and flip here's the link (maybe another isa GLSL or plug makes it better? ) https://editor.isf.video/shaders/5e7a7fa27c113618206de187
                                            and the converted GLSL https://we.tl/t-3Xzca6TNmQ
                                            thanks for all the blending tool I'll go trying those I haven't yet, 
                                            I tried chaining delays but relation between added time and measures delay Is a bit wired till now...

                                            thanks so much for your inputs! 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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