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    [LOGGED] Envelope Generator Loop Function

    Feature Requests
    envelope genera
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    • jtoenjes
      jtoenjes last edited by Woland

      After putting in the um-teenth trigger delay on the end of an envelope generator and running it back into the trigger input, it would be super nice if the Envelope Generator would have a loop on/off parameter.

      Michel 1 Reply Last reply Reply Quote 0
      • Michel
        Michel Izzy Guru @jtoenjes last edited by

        @jtoenjes

        Not sure what your really want. But if you trigger the envelope with its own output with a delay inbetween this has nothing to do with a loop function of the envelope generator. It actually gets an external trigger. You can put a gate actor in-between the delay and the input of the envelope generator.

        Best Michel

        Michel Weber | www.filmprojekt.ch | rMBP (2019) i9, 16gig, AMD 5500M 8 GB, OS X 10.15 | located in Winterthur Switzerland.

        mark 1 Reply Last reply Reply Quote 0
        • mark
          mark @Michel last edited by

          @michel said:

          Not sure what your really want. But if you trigger the envelope with its own output with a delay inbetween this has nothing to do with a loop function of the envelope generator. It actually gets an external trigger. You can put a gate actor in-between the delay and the input of the envelope generator.

           I think what @jtoenjes wants is for the Envelope Generator to trigger itself as soon as the it reaches the end. Is that right John?

          Best Wishes,
          Mark

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

          bonemap 1 Reply Last reply Reply Quote 0
          • bonemap
            bonemap Izzy Guru @mark last edited by bonemap

            @mark said:

            Envelope Generator to trigger itself

             I would say from my perspective allowing the Envelope Generators to trigger themselves in a loop would be great. Particularly in the case when using multiple one/end steps in the actor. Many times the Envelope Generators needs to be reset to start again in wait for the next trigger. The most obvious indicator for this is the actors own end trigger.

            When using any kind of control for levels using a looping envelope generator appears to be a good solution for moving a current level back as an input into the actor as the first parameter for the next loop of the generator. When using this method for light channels or RGB leds for example having to program an extra step to reset the Envelope Generators does add a lot of additional work and take up a lot of additional space in  patch. 

            Many years ago the Envelope Generator was able to loop back from an end trigger. I had a whole system for running DMX fade with that. So I can understand the frustration of the extra effort that is now required.

            Kind Regards

            Russell

            http://bonemap.com | Australia
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            • mark
              mark last edited by

              @bonemap said:

              Many years ago the Envelope Generator was able to loop back from an end trigger.

               Whaaaaaa? Backwards you mean?

              Best Wishes,
              Mark

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

              bonemap 1 Reply Last reply Reply Quote 0
              • bonemap
                bonemap Izzy Guru @mark last edited by

                @mark said:

                Backwards you mean

                 HI @Mark,

                Thats interesting but, I didn't mean the generator running backwards backwards. But does this patch help to explain? Beta version.channel level catcher.izz

                http://bonemap.com | Australia
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                • mark
                  mark @bonemap last edited by

                  @bonemap said:

                  But does this patch help to explain?

                  Are you referring to the execution order of the inputs here? I.e., the fact that the trigger is above the values, so you need a trigger delay to the 'trigger' input to ensure the values are recognized before the envelope starts?

                  Best Wishes,
                  Mark

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

                  bonemap 1 Reply Last reply Reply Quote 0
                  • bonemap
                    bonemap Izzy Guru @mark last edited by bonemap

                    @mark

                    I don’t know why it is hard to articulate, but let me give it a go....

                    Let’s think of a scenario where we want to use a an Envelope Generator as an interactive fader for a series of level changes in the range 1-255.

                    In this example the default two value inputs of the Envelope Generator  are used : value 0 and value 1. The value 0 is initialised at 0 and the value 1 has the first level value we want to arrive at for the first fade event. At the end of each fade event the most recent end value needs to be returned as a value to the value 0 input of the Envelope generator. A new value 1 amount can then be set ready to trigger and a smooth continuity between output levels can be attained. 

                    First fade event:

                    Value 0: 0

                    Value 1: 127

                    Second fade event:

                    Value 0: 127

                    Value 1: 200

                    Third fade event:

                    Value 0: 200

                    Value 1: 50

                    And so on....

                    Using the end trigger of the Envelope Generator to directly action the loop parsing of the most recent end value to the value 0 input to become the start value ready for the next fade event action would reduce the necessity of using other actors (like the broadcaster and listener actors demonstrated in my previous post).

                    Kind Regards

                    Russell

                    http://bonemap.com | Australia
                    Izzy STD 4.2 | USB 3.6 | + Beta
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                    jfg 1 Reply Last reply Reply Quote 0
                    • jfg
                      jfg @bonemap last edited by jfg

                      @bonemap

                      if I really understand what you want you can make it with less actors and use a macro or user actor to repeat it. But you know it.I don't understand either why we need a loop or do you mean the possibility to conect the output  directly with the value 0 or value 1 ?

                      best

                      Jean-François 

                      • Izzy 3.2.6
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                      bonemap 1 Reply Last reply Reply Quote 1
                      • bonemap
                        bonemap Izzy Guru @jfg last edited by

                        @jfg said:

                        macro or user actor

                         Thanks for your advice, that’s helpful. 

                        Best wishes

                        Russell

                        http://bonemap.com | Australia
                        Izzy STD 4.2 | USB 3.6 | + Beta
                        MBP 16” 2019 2.4 GHz Intel i9 64GB AMD Radeon Pro 5500 8 GB 4TB SSD | 14.5 Sonoma
                        Mac Studio 2023 M2 Ultra 128GB | OSX 15.3 Sequoia
                        A range of deployable older Macs

                        R 1 Reply Last reply Reply Quote 0
                        • R
                          Reinhard @bonemap last edited by

                          @bonemap

                          If I get this right - isn't a 'Value Delay Line' the most simple solution?

                          value delay fader.izz

                          mbp 16", 2021, m1pro, 16gb, 12.6 / 6core trashcan, 11.2 / youngest Izzy

                          bonemap 1 Reply Last reply Reply Quote 1
                          • bonemap
                            bonemap Izzy Guru @Reinhard last edited by

                            @reinhard said:

                            Value Delay Line

                             Ah yes, that is a good solution thanks for sharing!

                            Warm Regards

                            Russell

                            http://bonemap.com | Australia
                            Izzy STD 4.2 | USB 3.6 | + Beta
                            MBP 16” 2019 2.4 GHz Intel i9 64GB AMD Radeon Pro 5500 8 GB 4TB SSD | 14.5 Sonoma
                            Mac Studio 2023 M2 Ultra 128GB | OSX 15.3 Sequoia
                            A range of deployable older Macs

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                            • jtoenjes
                              jtoenjes last edited by

                              I’m sorry I didn’t realize there were so many replies to this feature request from so long ago. But this really was a simple request to have the envelope generator reach the end of its envelope and then restart right away in a loop. I have to insert a delay between the end trigger and the start trigger otherwise it fails. It really is a “simple” request (but maybe not “easy” to program into the actor?)

                              DusX 1 Reply Last reply Reply Quote 0
                              • DusX
                                DusX Tech Staff @jtoenjes last edited by

                                @jtoenjes said:

                                 I have to insert a delay between the end trigger and the start trigger otherwise it fails.

                                 This is due to Isadora automatically limiting feedback loops. This feature helps with stability and performance, especially during the build process where 'bad' loops might be introduced while experimenting. A delay of 0.001 wont effect the timing of the patch running, but it will tell Isadora that the loop is being managed.

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                                jtoenjes 1 Reply Last reply Reply Quote 0
                                • jtoenjes
                                  jtoenjes @DusX last edited by

                                  @dusx thanks. I guess I'll just make a user actor then.

                                  1 Reply Last reply Reply Quote 0
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