Version: 2019.2
LanguageEnglish
  • C#

ParticleSystem.TrailModule.ratio

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Switch to Manual
public float ratio;

Description

Choose what proportion of particles will receive a trail.

Use a value between 0 and 1, where 0 will add trails to no particles, and 1 will add trails to all particles.

using UnityEngine;
using System.Collections;

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

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

var main = ps.main; main.startColor = new ParticleSystem.MinMaxGradient(Color.red, Color.yellow); main.startSize = 0.1f;

var trails = ps.trails; trails.enabled = true;

var psr = GetComponent<ParticleSystemRenderer>(); psr.trailMaterial = new Material(Shader.Find("Sprites/Default")); }

void Update() { var trails = ps.trails; trails.ratio = hSliderValueRatio; }

void OnGUI() { GUI.Label(new Rect(25, 40, 100, 30), "Ratio");

hSliderValueRatio = GUI.HorizontalSlider(new Rect(55, 45, 100, 30), hSliderValueRatio, 0.0f, 1.0f); } }