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    [ANSWERED] 3d Particles. How to change the particle texture mid emission?

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    • O
      Olivier Proulx last edited by Woland

      Hi all, I was in a workshop with Armando Menicacci and we stumble on a problem. 

      I want the particle texture to change wile its emitting but without changing the texture of the already emitted particles.

      For example, I need to change the particles to a certain word, then to another word and so on. Right now when I input a different word in the particle texture, all the particles

      changes texture. Even the one that were already emitted.

      Can anyone point me in a certain direction?

      Thanks!

      Olivier Proulx

      Woland bonemap 2 Replies Last reply Reply Quote 0
      • Woland
        Woland Tech Staff @Olivier Proulx last edited by

        @olivier-proulx

        Maybe multiple 3D Particle actors at the same time?

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        O 1 Reply Last reply Reply Quote 0
        • O
          Olivier Proulx @Woland last edited by

          @woland Thanks for you quick answer! I've tried to do this but timing and position of the particles becomes a nightmare. Im using a mouse watcher to generate particle in random positions around it and with multiple 3d particles actors they overlap and I get layers problems... Could the "texture map col" and "texture map row" be use in this situation? I've never use those. 

          I want to create a trail of words that form sentences as I move the mouse...


          Thanks!

          Olivier Proulx

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          • O
            Olivier Proulx last edited by

            Here is my patch as of now. With only 4 word in my text/ure. But the goal is ultimately to have a full paragraphe. One word per line that is changed by the counter/pulse generator.

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            • bonemap
              bonemap Izzy Guru @Olivier Proulx last edited by bonemap

              @olivier-proulx

              Hi,

              It is possible to do what you have proposed, but I would say it is not trivial...

              Please find my example that I hope will provide you with some assistance to achieve your goal. In it there are 3 short paragraphs read from a text file that has been formatted with single word line entries - all up about 225 words. The text file is read into Isadora with a Data Array actor and formatted into a 15 x 15 grid on a Virtual Stage via a Text Draw actor. The grid coordinates are provided by another text file and read sequentially by another Data Array actor into the Text Draw actor. A series of Counter actors then delivers each word to the Text Draw actor as its position is being provided by the gird coordinates. A feedback loop is created by feeding the Virtual Stage back into the Text Draw actor with a Get Stage Image actor, thus a visual grid of words is constructed on the Virtual Stage. This word grid is now a sprite sheet that can then be used by a 3D particles actor to deliver each section of the grid to individual particles as they are emitted. 

              The system works well, and is not fully refined more like a prototype. 

              update: this is an updated example file also submitted to the Add-ons page

              text2particles-2.zip

              Best Wishes

              Russell

              http://bonemap.com | Australia
              Izzy STD 4.2 | USB 3.6 | + Beta
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              Woland Notdoc O 3 Replies Last reply Reply Quote 1
              • Woland
                Woland Tech Staff @bonemap last edited by

                @bonemap

                Could you put this on the Add-Ons Page? (Or if you don't have time, do you mind if I put it up and give you credit?) This is so cool, I don't want it to get buried in the forum.

                TroikaTronix Technical Support
                New Support Ticket: https://support.troikatronix.com/support/tickets/new
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                | Isadora Version: all of them | Mac Pro (Late 2013), macOS 10.14.6, 3.5GHz 6-core, 1TB SSD, 64GB RAM, Dual AMD FirePro D700s |

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

                  @bonemap love this! thanks for sharing it with us all

                  Ventura 13.7.2 on Macbook Pro 14-in M1 Max 2022

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                  • bonemap
                    bonemap Izzy Guru @Woland last edited by

                    @woland

                    Hi,

                    Ok I will prepare a version for the Add Ons. Thanks for the suggestion.

                    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

                    1 Reply Last reply Reply Quote 1
                    • O
                      Olivier Proulx @bonemap last edited by

                      @bonemap Wow. Thanks Russel, I will try this as soon as I can get back on it.

                      Olivier

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

                        @olivier-proulx

                        Hi,

                        Here is an updated example patch that has been submitted to the Add-ons page. Thanks for sparking this idea, I have been looking for a solution like this for current collaboration work with a writer.

                        text2particles-2.zip

                        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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