https://github.com/keijiro/TimelineParticleControl

An example of controlling particle system from timeline.
https://github.com/keijiro/TimelineParticleControl

particle timeline unity unity3d

Last synced: about 1 month ago
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An example of controlling particle system from timeline.

• Host: GitHub
• URL: https://github.com/keijiro/TimelineParticleControl
• Owner: keijiro
• Created: 2017-12-04T10:01:15.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2021-12-03T02:27:10.000Z (about 3 years ago)
• Last Synced: 2024-08-02T13:26:13.819Z (5 months ago)
• Topics: particle, timeline, unity, unity3d
• Language: C#
• Homepage:
• Size: 1.37 MB
• Stars: 538
• Watchers: 29
• Forks: 51
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
Timeline Particle System Control Example

========================================

This is an example that shows how to control particle systems from a custom 

track class.

![gif](https://i.imgur.com/rJz6eWk.gif)

![gif](https://i.imgur.com/G6LnNFn.gif)

Comparison with Control Track

-----------------------------

The standard [Control Track] provides basic functionalities to control a

particle system within a timeline track. Although it's enough for most cases,

it has some small limitations.

- It only provides on/off switch. An extra Animation Track is needed to control

  particle parameters.

- The [Inherit Velocity] module doesn't work with the Control Track.

- It overrides the random seed number with the same value even if there are

  multiple particle systems under the hierarchy.

- It uses the [fixed delta time] as a simulation interval. This is not ideal to

  get smooth animation.

The custom track class (`ParticleSystemControlTrack`) contained in this example

provides the following functionalities.

- Playhead scrubbing support (not perfect; reset on rewinding).

- Emission rate control. It's controllable from both inline animation curves

  and ease-in/out curves.

- Inherit Velocity module support.

- Transform snapping support.

- Random number override just happens with a single particle system.

- Animation with system delta time.

[Control Track]: https://docs.unity3d.com/ScriptReference/Timeline.ControlTrack.html

[Inherit Velocity]: https://docs.unity3d.com/Manual/PartSysInheritVelocity.html

[fixed delta time]: https://docs.unity3d.com/ScriptReference/Time-fixedDeltaTime.html

License

-------

Copyright (c) 2017 Unity Technologies

This repository is to be treated as an example content of Unity; you can use

the code freely in your projects. Also see the [FAQ] about example contents.

[FAQ]: https://unity3d.com/unity/faq#faq-37863