ParticleSystem.MainModule.randomizeRotationDirection

Description

Cause some particles to spin in the opposite direction.

Set between 0 and 1, where higher values will cause a higher proportion of particles to spin in the opposite direction.

no example available in JavaScript

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {

	private ParticleSystem ps;
	public float hSliderValue = 0.0F;

	void Start() {
		ps = GetComponent<ParticleSystem>();

		var rot = ps.rotationOverLifetime;
		rot.enabled = true;
		rot.zMultiplier = 90.0f * Mathf.Deg2Rad;

		var psr = GetComponent<ParticleSystemRenderer>();
		psr.material = new Material(Shader.Find("Sprites/Default"));	// this material renders a square billboard, so we can see the rotation
	}

	void Update() {
		var main = ps.main;
		main.randomizeRotationDirection = hSliderValue;
	}

	void OnGUI() {
		hSliderValue = GUI.HorizontalSlider(new Rect(25, 25, 100, 30), hSliderValue, 0.0F, 1.0F);
	}
}