UI Particle System

Renders Shuriken-style particles inside the UI canvas.

Effects effects particles

Controls demonstrated: UI Particle System

Overview

This scene demonstrates rendering a native Unity particle system inside the uGUI canvas with the UI Particle System control. A small runtime control window lets you play, pause and stop the emitter and watch its live state. Use it when you want particle effects that live in your UI layer rather than in 3D world space.

Controls Featured

• UI Particle System — renders the attached Unity particle system in UI space so the effect draws correctly within the canvas.

Scene Setup

1. Add the UI Extensions Samples sample to your project (open the package in the Unity Package Manager and import UI Extensions Samples), or copy Examples~/UIParticleSystem/ into your project’s Assets/ folder.
2. Open the UIParticleSystem scene in that folder.
3. Press Play.

What to Expect

The particle effect renders within the UI canvas. A draggable on-screen control window (drawn with IMGUI by the ParticleSystemControllerWindow script) shows read-only toggles for the system’s Playing, Emitting and Paused states, plus buttons to Play, Pause, Stop Emitting, and Stop & Clear. An “Include Children” toggle controls whether those calls cascade to child systems, and labels report the current time and live particle count.

Key Code Patterns

void DrawWindowContents(int windowId)
{
    if (system)
    {
        if (GUILayout.Button("Play"))
            system.Play(includeChildren);
        if (GUILayout.Button("Pause"))
            system.Pause(includeChildren);
        if (GUILayout.Button("Stop Emitting"))
            system.Stop(includeChildren, ParticleSystemStopBehavior.StopEmitting);
        if (GUILayout.Button("Stop & Clear"))
            system.Stop(includeChildren, ParticleSystemStopBehavior.StopEmittingAndClear);
    }
    GUI.DragWindow();
}