Version: 2021.1
LanguageEnglish
  • C#

ParticleSystem.ExternalForcesModule.influenceMask

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 LayerMask influenceMask;

Description

Particle System Force Field Components with a matching Layer affect this Particle System.

See Also: LayerMask.

using UnityEngine;

public class ExampleClass : MonoBehaviour { private ParticleSystem ps; public bool layerToggle; private readonly int layer0 = 0; private readonly int layer1 = 1;

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

var main = ps.main; main.startColor = Color.red;

var shape = ps.shape; shape.enabled = false;

var externalForces = ps.externalForces; externalForces.enabled = true;

var forceField1 = new GameObject("Force Field 1", typeof(ParticleSystemForceField)).GetComponent<ParticleSystemForceField>(); forceField1.transform.parent = ps.transform; forceField1.transform.localPosition = new Vector3(-3.0f, 0.0f, 3.0f); forceField1.transform.localRotation = Quaternion.Euler(0.0f, 0.0f, 180.0f); forceField1.transform.localScale = new Vector3(5.0f, 5.0f, 5.0f); forceField1.gameObject.layer = layer0;

forceField1.gravity = 0.04f; forceField1.rotationSpeed = 2.0f; forceField1.rotationAttraction = 0.02f;

var forceField2 = new GameObject("Force Field 2", typeof(ParticleSystemForceField)).GetComponent<ParticleSystemForceField>(); forceField2.transform.parent = ps.transform; forceField2.transform.localPosition = new Vector3(3.0f, 0.0f, 3.0f); forceField2.transform.localRotation = Quaternion.identity; forceField2.transform.localScale = new Vector3(5.0f, 5.0f, 5.0f); forceField2.gameObject.layer = layer1;

forceField2.gravity = 0.04f; forceField2.rotationSpeed = 2.0f; forceField2.rotationAttraction = 0.02f; }

void Update() { var externalForces = ps.externalForces; externalForces.influenceMask = layerToggle ? (1 << layer0) : (1 << layer1); }

void OnGUI() { layerToggle = GUI.Toggle(new Rect(25, 40, 100, 30), layerToggle, "Toggle Layer"); } }