How to Generate Simple Audio-Reactive Trail Particles in TouchDesigner

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  • čas přidán 15. 01. 2019
  • BLOG POST: vjgalaxy.com/blogs/touchdesig...
    AUDIO BY: freemusicarchive.org/music/Loy...
  • Krátké a kreslené filmy

Komentáře • 45

  • @lostinspacestudio
    @lostinspacestudio Před 4 lety +2

    really nicely produced clear video thanks so much will check out the others

  • @mic9check
    @mic9check Před 5 lety +2

    First time checking out this stuff, much appreciated sir

    • @Vjgalaxy
      @Vjgalaxy  Před 5 lety

      Thanks for the support ;)

  • @scarlett9004
    @scarlett9004 Před 5 lety

    Great video . Thank you sir!

  • @mandar1n__
    @mandar1n__ Před 2 lety

    Thank you, great tutorial

  • @alexpatron
    @alexpatron Před 4 lety

    Thanks so much for making this.
    When I add the particle I get an "Not enough sources specified" error. How is the audio string on the top connecting to the rest of the operators?

  • @knast7093
    @knast7093 Před 4 lety

    Hi! Thanks for the tutorial! This may be a stupid question, but I'm getting a syntax error with the code at 3:44. I'm adding everything in, including the degree symbol, but it doesn't seem to work. Is there a way to do this with CHOP-reference instead? Thanks.

  • @mike83032
    @mike83032 Před 4 lety +3

    Thanks for the tutorial!
    But there's an error telling me that there's no”eval”, so the parameter didn't work. Did I do anything wrong?

  • @llrrrme3624
    @llrrrme3624 Před 5 lety

    Thank you for this Video!! But how to change the color? :)

    • @Vjgalaxy
      @Vjgalaxy  Před 5 lety

      Hi Elise, in this specific case you can change the color directly in the material operator (wireframe node). Let me know if you have any other questions. Cheers!

  • @d4bk
    @d4bk Před 5 lety

    Hey, thank you for this Video. I cant connect my trail with the geometry? Gemoetry has not the blue connectors ... any ideas?

    • @Vjgalaxy
      @Vjgalaxy  Před 5 lety +1

      Hi there. The simplest way is by right-clicking on any SOP output, and then select the Geometry COMP. Try watching minute 1:04. If you have any other questions, please let me know. Be well.

    • @d4bk
      @d4bk Před 5 lety

      ​@@Vjgalaxy Thank you again. I´ve finished my first visuals with touchdesigner and used this for my latest music track. i followed your video and downloaded your project file for better understanding. I use the free Edition 099 and i dont use blur effect because its horrible in 720p. I´ve splitted the frequency spektrum (bass, middle, high). One question. Can i put things in front of the particles? In my case the red circle (stands for bass) would be nice if it wont be overlapped from the particles. Heres my Version. czcams.com/video/JKbC5q9YbcU/video.html

    • @Vjgalaxy
      @Vjgalaxy  Před 5 lety

      @@d4bk Regarding the last question, try tweaking the draw priority inside the geo node. Cheers.

  • @KellyEFin
    @KellyEFin Před 4 lety

    Is there a way to attach a shader to this project and the audio's data? Thank you!

    • @Vjgalaxy
      @Vjgalaxy  Před 4 lety

      Hi Kelly, what do you mean exactly?

  • @draxible5902
    @draxible5902 Před 2 lety

    how do u add music tab 3:27

  • @JeremydePrisco
    @JeremydePrisco Před 4 lety

    Thanks for the lesson. So far I've been through this twice and still can't get my Particle operator to look like yours. When I add it, there is no activity or particles being generated. Wondering if it has anything to do with different versions, as there was a recent update.

    • @Vjgalaxy
      @Vjgalaxy  Před 4 lety

      Hi Jeremy, maybe something has changed between versions... I encourage you to review the TouchDesigner Python Documentation, all functions are taken from there. In any case confirm that you are using Python instead of Tscript. Let me know. Cheers.

    • @JeremydePrisco
      @JeremydePrisco Před 4 lety

      @@Vjgalaxy I've done a couple other Particle exercises, but this one still doesn't seem to work. Right from the start where you are adding the Particle SOP, I don't see the same thing. Yours shows particles around a circle. Mine just shows the XYZ grid. It's as if you were dropping in something that was already built elsewhere. Been through this several more times and something just doesn't add up compared to the other techniques I've learned.

    • @Vjgalaxy
      @Vjgalaxy  Před 4 lety

      @@JeremydePrisco make sure you add a Circle SOP. It is very important to add the Particles node by clicking the SOP output (in this way TD knows what to do), I mean, DO NOT add a particle node and then connect the SOP to it. Let me know if it works.

    • @JeremydePrisco
      @JeremydePrisco Před 4 lety

      @@Vjgalaxy Ah, OK, now I see. Getting something much closer to what you have now. Thanks for your patience.

    • @maxkulicke5665
      @maxkulicke5665 Před 3 lety

      @@Vjgalaxy hey, brand new to TD. when i click the circle SOP outputs i do not get the menu for adding the node. I seem to be only able to add the node separately and then connect the two. Is it a hotkey or a command I am missing? Thanks for the demo!

  • @tarekben5524
    @tarekben5524 Před 4 lety

    Hi Vj Galaxy.
    I tried to use an obj. file of mine instead of a classic circle but it doesn't show up on the render?
    Could be the file? Any advice?
    Thanks in advance.

    • @Vjgalaxy
      @Vjgalaxy  Před 4 lety +1

      Hi Tarek, I don't know if TouchDesigner recognizes OBJ files. You should always use FBX (you can easily convert OBJ to FBX via Blender). With FBX you can include animation data too (you can't do that with OBJ files). Just one thing, before exporting your FBX file, confirm that your FBX version is supported by TD; TD does not support old FBX versions. Let me know if you need anything else. Cheers.

    • @tarekben5524
      @tarekben5524 Před 4 lety

      @@Vjgalaxy Thank you so much. I noticed that some objs and fbxs aren't rendering quite well.
      Cheers!

    • @Vjgalaxy
      @Vjgalaxy  Před 4 lety

      @@tarekben5524 you could try cleaning up your geometries (in your 3D software) too.

  • @DewSnack
    @DewSnack Před 4 lety

    hi, thanks for this vid,
    so when i try to write the expression for analyze into wind, my particle op goes red saying wrong character is in there aka syntax error. i write: op(‘analyze1’)[‘chan1’].eva() Any advice?)

    • @1010mrhockey
      @1010mrhockey Před 4 lety

      op(‘analyze1’)[‘chan1’].eval()
      The expression is eval() not eva()

    • @Vjgalaxy
      @Vjgalaxy  Před 4 lety

      Hi there, did you write eva()? If yes, you should write: eval(). Let me know.

    • @DewSnack
      @DewSnack Před 4 lety

      @@Vjgalaxy hi, ye it worked as i already read a previous answer, thank you both. Been diggin TD alot lately. !) I need to get my hands on python more tho. Dunno how to and where to start hah

    • @Vjgalaxy
      @Vjgalaxy  Před 4 lety

      @@DewSnack There is a free book called 'Think Python' by Allen B. Downey. It is the best resource to get started in Python.

    • @jarda7007
      @jarda7007 Před 4 lety

      @@Vjgalaxy i wrote the expression right , and kinf of re-wrote it a lot of times to make shure its ok , but it keeps me showing the red box and reposting this error (invalid character in identifier)

  • @WalrusesAreTheOne
    @WalrusesAreTheOne Před 3 lety +1

    keeps saying 'invalid syntax' when i type the eval expression for particle birth

    • @BetaPetra
      @BetaPetra Před 3 lety

      a mi me aparece lo mismo :(

  • @Tryharddriven
    @Tryharddriven Před 5 lety +4

    Hi VjGalaxy!
    "op('analyze1')['chan1'].eval()°50" on Particle-Forces 3:50 throw an error, the wind is 0 in red, same goes with Particles-Birth ->
    Screenshots: ibb.co/3WNWtL8 / ibb.co/BNQdxTq
    How can I fix that? Thank you!

    • @BetaPetra
      @BetaPetra Před 3 lety

      ¿A mi me paso lo mismo, encontraste respuesta?

    • @outerdarkness
      @outerdarkness Před 3 lety

      try this: op('analyze1')['chan1'].eval()*50

  • @yongxunhe1659
    @yongxunhe1659 Před 5 lety

    果然是高手