ParticleSystem.RotationBySpeedModule.xMultiplier

Description

Speed multiplier along the X axis.

This method is more efficient than accessing the whole curve, if you only want to change the overall speed multiplier.

#pragma strict
private var ps: ParticleSystem;
public var hSliderValue: float = 1.0f;
function Start() {
	ps = GetComponent.<ParticleSystem>();
	var rotationBySpeed: var = ps.rotationBySpeed;
	rotationBySpeed.enabled = true;
	rotationBySpeed.separateAxes = true;
	rotationBySpeed.xMultiplier = 1.0f;
	rotationBySpeed.yMultiplier = 0.0f;
	rotationBySpeed.zMultiplier = 0.0f;
	rotationBySpeed.range = new Vector2(1.0f, 5.0f);
	var psr: var = GetComponent.<ParticleSystemRenderer>();
	psr.material = new Material(Shader.Find("Sprites/Default"));
	// this material renders a square billboard, so we can see the rotation
}
function Update() {
	var main: var = ps.main;
	main.startSpeed = hSliderValue;
}
function OnGUI() {
	hSliderValue = GUI.HorizontalSlider(new Rect(25, 45, 100, 30), hSliderValue, 1.0f, 5.0f);
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    private ParticleSystem ps;
    public float hSliderValue = 1.0f;

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

        var rotationBySpeed = ps.rotationBySpeed;
        rotationBySpeed.enabled = true;
        rotationBySpeed.separateAxes = true;

        rotationBySpeed.xMultiplier = 1.0f;
        rotationBySpeed.yMultiplier = 0.0f;
        rotationBySpeed.zMultiplier = 0.0f;
        rotationBySpeed.range = new Vector2(1.0f, 5.0f);

        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.startSpeed = hSliderValue;
    }

    void OnGUI()
    {
        hSliderValue = GUI.HorizontalSlider(new Rect(25, 45, 100, 30), hSliderValue, 1.0f, 5.0f);
    }
}