• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by Charlemagne · May 02, 2014 at 03:22 AM · particlesparticleplayemitteremit

Particles do not appear on play but do on emit

I am trying to spawn a directional from the simple particle pack. When I call Emit directly, something seems to happen. I searched through some questions and did things like set enableEmissions to true. I have their SimpleFlame Prefabs attached to my public instance variables. I know that the loop in play gets executed, but nothing seems to happen at all. The game objects for the particles exist. I think I have broken something in rearchitecting their example.

I abstracted their logic into a script like this:

 using UnityEngine;
 using System.Collections.Generic;
 
 public class Spawner: MonoBehaviour 
 {
     public GameObject Flare0;
     public GameObject Flare1;
     private List<Flare> flares;
     private float elapsed;
     private double delay;
 
     private class Flare
     {
         private GameObject particleObject;
         private ParticleSystem[] particleSystems;
 
         public Flare(GameObject flare)
         {
             this.particleObject = Instantiate(flare, Vector3.zero, Quaternion.identity) as GameObject;
             this.particleSystems = this.particleObject.GetComponentsInChildren<ParticleSystem>();
             this.particleObject.SetActive(false);
         }
 
         public void Play()
         {
             this.particleObject.SetActive(true);
             foreach (ParticleSystem ps in this.particleSystems)
             {
                 ps.Clear();
                 ps.Play();
             }
         }
     }
 
     void Start () 
     {
         this.elapsed = 0;
         this.delay = 5;
         this.flares = new List<Flare>(2);
         this.flares.Add(new Flare(this.Flare0));
         this.flares.Add(new Flare(this.Flare1));
     }
     
     void Update () 
     {
         this.elapsed += Time.deltaTime;
         if (this.elapsed >= this.delay) 
         {
             flare.Play();
             this.elapsed = 0;
         }
     }
 }

I have narrowed the problem to the Directional effects not working. The flares and explosions work fine. The directionals work in the test scene. Why won't they work in mine? They don't even simulate correctly in either scene. wtf.

Comment
Add comment · Show 1
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image VioKyma · May 02, 2014 at 12:16 PM 0
Share

$$anonymous$$ake sure playOnAwake is set to true, this way the particles will begin emitting on Awake() plus any delay you have set

0 Replies

· Add your reply
  • Sort: 

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

The best place to ask and answer questions about development with Unity.

To help users navigate the site we have posted a site navigation guide.

If you are a new user to Unity Answers, check out our FAQ for more information.

Make sure to check out our Knowledge Base for commonly asked Unity questions.

If you are a moderator, see our Moderator Guidelines page.

We are making improvements to UA, see the list of changes.



Follow this Question

Answers Answers and Comments

21 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Particle Emitter Breaks in emission. Help? 1 Answer

Emit particles from image/sprite 1 Answer

Particle delay 1 Answer

Particle Emitter Toggle ON/OFF 1 Answer

ParticleSystem.Play() does not play particle. 8 Answers


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges