ParticleSystemRenderer.sortMode

Description

Sort particles within a system.

no example available in JavaScript

using UnityEngine;
using UnityEditor;
using System.Collections;

public class ExampleClass : MonoBehaviour {

	private ParticleSystem ps;
	private ParticleSystemRenderer psr;
	public ParticleSystemSortMode sortMode;

	void Start() {

		ps = GetComponent<ParticleSystem>();
		psr = GetComponent<ParticleSystemRenderer>();

		// set a slow start speed and high emission rate, to cause more overlap, to show sorting
		var main = ps.main;
		main.startSpeedMultiplier = 0.2f;
		var emission = ps.emission;
		emission.rateOverTimeMultiplier = 100.0f;

		// set color over life, so we can see the sorting more easily
		var colorOverLifetime = ps.colorOverLifetime;
		colorOverLifetime.enabled = true;

		Gradient gradient = new Gradient();
		gradient.SetKeys(
			new GradientColorKey[] { new GradientColorKey(Color.green, 0.0f), new GradientColorKey(Color.red, 1.0f) },
			new GradientAlphaKey[] { new GradientAlphaKey(1.0f, 0.0f), new GradientAlphaKey(1.0f, 1.0f) }
			);

		colorOverLifetime.color = new ParticleSystem.MinMaxGradient(gradient);
	}

	void Update() {

		psr.sortMode = sortMode;
	}

	void OnGUI() {
		
		sortMode = (ParticleSystemSortMode)GUI.SelectionGrid(new Rect(25, 25, 900, 30), (int)sortMode, new GUIContent[] { new GUIContent("None"), new GUIContent("Distance"), new GUIContent("OldestInFront"), new GUIContent("YoungestInFront") }, 4);
	}
}