ParticleSystem.NoiseModule.scrollSpeed

Description

Scroll the noise map over the particle system.

See Also: MinMaxCurve.

no example available in JavaScript

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {

	private ParticleSystem ps;
	public bool enabled = true;
	public float hSliderValueStrength = 1.0f;
	public float hSliderValueFrequency = 1.0f;
	public float hSliderValueScrollSpeed = 0.0f;
	public bool damping = true;
	public ParticleSystemNoiseQuality quality = ParticleSystemNoiseQuality.High;

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

		// Set color by speed, to demonstrate the effects of the Noise Module
		var colorBySpeed = ps.colorBySpeed;
		colorBySpeed.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) }
			);

		colorBySpeed.color = new ParticleSystem.MinMaxGradient(gradient);
		colorBySpeed.range = new Vector2(3.0f, 7.0f);
	}

	void Update() {
		var noise = ps.noise;
		noise.enabled = enabled;
		noise.strengthMultiplier = hSliderValueStrength;
		noise.frequency = hSliderValueFrequency;
		noise.scrollSpeed = hSliderValueScrollSpeed;
		noise.damping = damping;
		noise.quality = quality;
	}

	void OnGUI() {
		enabled = GUI.Toggle(new Rect(25, 45, 200, 30), enabled, "Enabled");

		GUI.Label(new Rect(25, 80, 100, 30), "Strength");
		GUI.Label(new Rect(25, 120, 100, 30), "Frequency");
		GUI.Label(new Rect(25, 160, 100, 30), "Scroll Speed");

		hSliderValueStrength = GUI.HorizontalSlider(new Rect(135, 85, 100, 30), hSliderValueStrength, 0.0f, 5.0f);
		hSliderValueFrequency = GUI.HorizontalSlider(new Rect(135, 125, 100, 30), hSliderValueFrequency, 0.0f, 5.0f);
		hSliderValueScrollSpeed = GUI.HorizontalSlider(new Rect(135, 165, 100, 30), hSliderValueScrollSpeed, 0.0f, 5.0f);

		damping = GUI.Toggle(new Rect(25, 205, 200, 30), damping, "Damping");

		quality = (ParticleSystemNoiseQuality)GUI.SelectionGrid(new Rect(25, 245, 300, 30), (int)quality, new GUIContent[] { new GUIContent("Low"), new GUIContent("Medium"), new GUIContent("High") }, 3);
	}
}