Search Unity

  1. Welcome to the Unity Forums! Please take the time to read our Code of Conduct to familiarize yourself with the forum rules and how to post constructively.
  2. Unite 2023 Registrations are now LIVE! We are thrilled to announce that Unite 2023 Registration is now live and open for all!
    Dismiss Notice
New Forum User Notice Unite 2023 Registrations are now LIVE!

Particle System feature request: emission along splines

Discussion in 'General Graphics' started by fastgamedev, Jul 11, 2018.

  1. fastgamedev

    fastgamedev

    Joined:
    Mar 27, 2014
    Posts:
    79
    Question for Unity particles development team:

    Are there any plans in the near future to add particles emitted along splines? It's a common use case, and I would rather not roll my own if you guys are developing one already.

    Thanks!
     
    fastgamedev, Jul 11, 2018
    #1

  2. karl_jones

    karl_jones

    Unity Technologies

    Joined:
    May 5, 2015
    Posts:
    7,846
    No not at the moment. For that we would need a good spline system in Unity and we don't currently have one. You can create some spline effects using the shape module in 2018.3 with a mesh and emit along vertices(see our Unite Europe talk when it comes out).
     
    karl_jones, Jul 11, 2018
    #2

  3. fastgamedev

    fastgamedev

    Joined:
    Mar 27, 2014
    Posts:
    79
    Ok, thank you, Karl.
     
    fastgamedev, Jul 11, 2018
    #3
    karl_jones likes this.

  4. karl_jones

    karl_jones

    Unity Technologies

    Joined:
    May 5, 2015
    Posts:
    7,846
    This is what I was referring to
     
    karl_jones, Jul 11, 2018
    #4
    fastgamedev and Torbach78 like this.

  5. Lars-Steenhoff

    Lars-Steenhoff

    Joined:
    Aug 7, 2007
    Posts:
    3,450
    Lars-Steenhoff, Jul 11, 2018
    #5

  6. karl_jones

    karl_jones

    Unity Technologies

    Joined:
    May 5, 2015
    Posts:
    7,846
    The
    There are several spline systems scattered throughout unity
    We did a hackweek a few weeks ago to try and create a uniform system but it's quite a bit of work so won't be happening anytime soon. Also the 2d system is in c# and for particles it would need to be in the core in c++.

     
    karl_jones, Jul 11, 2018
    #6
    Lars-Steenhoff likes this.

  7. Lars-Steenhoff

    Lars-Steenhoff

    Joined:
    Aug 7, 2007
    Posts:
    3,450
    Cool results!
    and the roundtripping is pretty nice!
     
    Lars-Steenhoff, Jul 11, 2018
    #7
    karl_jones likes this.

  8. Kareeem

    Kareeem

    Joined:
    Mar 1, 2013
    Posts:
    37
    @karl_jones

    Hey there, as soon as I select a mesh for my shape the option of sequence emitting ( loop etc ) disappears. Any idea?
     

    Attached Files:

    Kareeem, Nov 21, 2018
    #8

  9. richardkettlewell

    richardkettlewell

    Unity Technologies

    Joined:
    Sep 9, 2015
    Posts:
    2,240
    What version? Sequenced mesh emission is coming in Unity 2018.3 :)
     
    richardkettlewell, Nov 21, 2018
    #9
    karl_jones likes this.

  10. Kareeem

    Kareeem

    Joined:
    Mar 1, 2013
    Posts:
    37
    Oh I see, we are working with 2018.2. The mentioned talk posted above wasnt totally clear on that. At least tomy knowledge. Thanks for the quick response though!
     
    Kareeem, Nov 21, 2018
    #10
    richardkettlewell and karl_jones like this.

  11. Torbach78

    Torbach78

    Joined:
    Aug 10, 2013
    Posts:
    296
    Greetings,

    From collective artistic pov such an ideal & comprehensive procedural spline geo system is also a line renderer, trail renderer and ribbon all leverage-able through particle systems with world based UV option too :)

    as for the ability to input a spline as shape emitter we could expect parameters such as a pan-able image, U or V space, vertex number and also leverage the random/,burst, loop and ping-pong features seen in the included primitives.

    /cheers
     
    Torbach78, Nov 22, 2018
    #11

  12. liquify

    liquify

    Joined:
    Dec 9, 2014
    Posts:
    172
    Can we make the particles made with the VFX Graph move along a spline?
     
    liquify, Jan 21, 2019
    #12

  13. Bahmann

    Bahmann

    Joined:
    Mar 5, 2019
    Posts:
    15
    Not that I know of. Need this Feature really badly
     
    Bahmann, Jun 19, 2019
    #13