ParticleSystem.VelocityOverLifetimeModule.zMultiplier

Description

Z axis speed multiplier.

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

no example available in JavaScript

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {

	private ParticleSystem ps;
	public float hSliderValueX = 1.0f;
	public float hSliderValueY = 1.0f;
	public float hSliderValueZ = 1.0f;

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

		var velocityOverLifetime = ps.velocityOverLifetime;
		velocityOverLifetime.enabled = true;
		velocityOverLifetime.space = ParticleSystemSimulationSpace.World;

		AnimationCurve curve = new AnimationCurve();
		curve.AddKey(0.0f, 0.0f);
		curve.AddKey(1.0f, 1.0f);

		ParticleSystem.MinMaxCurve minMaxCurve = new ParticleSystem.MinMaxCurve(1.0f, curve);

		velocityOverLifetime.x = minMaxCurve;
		velocityOverLifetime.y = minMaxCurve;
		velocityOverLifetime.z = minMaxCurve;

		var psr = GetComponent<ParticleSystemRenderer>();
		psr.material = new Material(Shader.Find("Sprites/Default"));	// this material renders a square billboard, making it easier to see the size
	}

	void Update() {
		var velocityOverLifetime = ps.velocityOverLifetime;
		velocityOverLifetime.xMultiplier = hSliderValueX;
		velocityOverLifetime.yMultiplier = hSliderValueY;
		velocityOverLifetime.zMultiplier = hSliderValueZ;
	}

	void OnGUI() {
		GUI.Label(new Rect(25, 40, 100, 30), "X");
		GUI.Label(new Rect(25, 80, 100, 30), "Y");
		GUI.Label(new Rect(25, 120, 100, 30), "Z");

		hSliderValueX = GUI.HorizontalSlider(new Rect(55, 45, 100, 30), hSliderValueX, -50.0f, 50.0f);
		hSliderValueY = GUI.HorizontalSlider(new Rect(55, 85, 100, 30), hSliderValueY, -50.0f, 50.0f);
		hSliderValueZ = GUI.HorizontalSlider(new Rect(55, 125, 100, 30), hSliderValueZ, -50.0f, 50.0f);
	}
}