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Control Track and Particles

Discussion in 'Timeline' started by rt_jscott, Nov 22, 2017.

  1. rt_jscott

    rt_jscott

    Joined:
    Jun 20, 2017
    Posts:
    12
    I've been using the control track to trigger on particles in my timeline. Its super cool that I can preview the particles in the timeline view and even scrub forwards and backwards with them. Unfortunately, I have a lot of problems as well. I'm curious if I'm using these wrong, if there are just a lot of bugs that will be fixed soon or if I should just attempt to implement my own sort of "Particle Track"

    Problem 1 - Particles flicker wildly when simulation speed on the particle is not set to 1. I suppose we can change all our particles, but I'd like avoid this.

    Problem 2 - When playing the actual game, I get the assertion failed: "Don't set random seed while system is playing!" I can't seem to figure this one out. My only work around is to mute the control track and switch to an activation once I'm done previewing the particle.

    Problem 3 - I'd like to control how the particles disable. It would be great to select between stopping the particle outright or to just stop the emitters so the particle fades out more naturally when the clip ends.
     
  2. seant_unity

    seant_unity

    Unity Technologies

    Joined:
    Aug 25, 2015
    Posts:
    526
    All three are known issues with bugs logged (or related issues logged). We are planning to get to them soon.
     
  3. Infrid

    Infrid

    Joined:
    Jan 14, 2012
    Posts:
    67
    any word on these? Would they cause problems in a build?
     
  4. seant_unity

    seant_unity

    Unity Technologies

    Joined:
    Aug 25, 2015
    Posts:
    526
    Sorry, but they are still active bugs. We are hoping to address them soon.
     
  5. sevensails

    sevensails

    Joined:
    Aug 22, 2013
    Posts:
    482
    Same problem here... Random Seed and Flicker errors!
     
  6. thierry_unity

    thierry_unity

    Unity Technologies

    Joined:
    Jun 10, 2015
    Posts:
    149
    Hi, can you specify what version? we recently made a fix for those issues.
     
  7. sevensails

    sevensails

    Joined:
    Aug 22, 2013
    Posts:
    482
    Hi! Unity 2017.3.1p4!

    The problem only occurs if the Particle System is set as GameObject on a Control Track.