Camera

Particle Effect For UGUI

ParticleEffectForUGUI

This plugin provide a component to render particle effect for uGUI in Unity 2018.2+.
The particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.


PRs Welcome

<< Description | WebGL Demo | Download | Usage | Development Note | Change log >>

What’s new? Please see See changelog

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Description

This plugin uses new APIs MeshBake/MashTrailBake (added with Unity 2018.2) to render particles by CanvasRenderer. You can mask and sort particles for uGUI without Camera, RenderTexture, Canvas.

Compares this “Baking mesh” approach with the conventional approach:
(This scene is included in the package.)

Approach Good Bad Screenshot
Baking mesh
(UIParticle)
Rendered as is.
Maskable.
Sortable.
Less objects.
Requires Unity 2018.2+.
Requires UI shaders to use Mask.
Do nothing Rendered as is. Looks like a glitch.
Not maskable.
Not sortable.
Convert particle to UIVertex
(UIParticleSystem)
Maskable.
Sortable.
Less objects.
Adjustment is difficult.
Requires UI shaders.
Difficult to adjust scale.
Force hierarchy scalling.
Simulation results are incorrect.
Trail, rotation of transform, time scaling are not supported.
Generate heavy GC every frame.
Use Canvas to sort Rendered as is.
Sortable.
You must to manage sorting orders.
Not maskable.
More batches.
Use RenderTexture Maskable.
Sortable.
Requires Camera and RenderTexture.
Difficult to adjust position and size.
Quality depends on the RenderTexture’s setting.

Features

  • Sort particle effects with uGUI
  • No Camera, RenderTexture or Canvas are required
  • Masking with Mask or RectMask2D
  • Easy to use
  • Support Trail module
  • Change alpha with CanvasGroup
  • Scaling independent of Transform
  • No heavy allocation every frame
  • All ParticleSystem.ScalingModes and all Canvas.RenderModes are supported. They look almost the same in all modes.
  • Scaled gizmo





Demo

WebGL Demo





Install

Using UnityPackageManager (for Unity 2018.3+)

Find the manifest.json file in the Packages folder of your project and edit it to look like this:

{
  "dependencies": {
    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#2.1.0",
    ...
  },
}

To update the package, change #{version} to the target version.

Using .unitypackage file (for Unity 2018.2+)

Download *.unitypackage from Releases and import the package into your Unity project.
Select Assets > Import Package > Custom Package from the menu.





How to play demo

  • Import UIParticle_Demo.unitypackage into your project.
  • The demo unitypackage exists in Assets/Assets/Coffee/UIExtensions/UIParticle or Packages/UI Particle.
  • Open UIParticle_Demo scene and play it.





Usage

  1. Add your particle effect to canvas.
  2. (Option) If you want to mask particles, set a UI shader such as “UI/UIAdditive” to material for ParticleSystem.
  3. Add UIParticle component to root particle system of your effect from Add Component in inspector.
  4. If your effect consists of multiple ParticleSystems, click “Fix”.
  5. Adjust the Scale property to change the size of the effect.
  6. Enjoy!
Requirement
  • Unity 2018.2+ (Tested in Unity 2018.2.0f2)
  • No other SDK are required





Development Note





License

  • MIT
  • © UTJ/UCL

Author

mob-sakai
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See Also