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Question by Talavang · Oct 24, 2012 at 01:36 AM · bugrendererglitchtrail

trail renderer disapear, strange behavior

Am trying to make 2 falling stars.

When player hit a trigger area, the star move with some speed (- some aceleration). the stars are 2 planes with materials (particles/alpha blended multiply) and trail renderer

here is the code

 using UnityEngine;
 using System.Collections;
 
 public class control_cometa : MonoBehaviour {
     
     public GameObject cometa_estela;
     public bool movimiento=false;
     /*public float p_mov_x=1;
     public float p_mov_y=1;*/
     public float velocidad=10f;
     public float desaceleracion=2f;
     // Use this for initialization
     
     void Start () {
         cometa_estela.gameObject.active = false;
     }
     
     // Update is called once per frame
     void Update () {
         if(movimiento){
             cometa_estela.transform.Translate(Vector3.left * velocidad);
             velocidad -= desaceleracion;
             if(velocidad<0){
                 movimiento=false;
                 Destroy (cometa_estela);
                 Destroy (gameObject);
             }
         }
     }
     
     void OnTriggerEnter( Collider colison ){        
         if( colison.gameObject.tag == "jugador" ){            
             if(!movimiento){
                 //Debug.Log("mov");
                 cometa_estela.gameObject.active = true;
                  //StartCoroutine(mover_cometa());
                 movimiento=true;
             }
         }
     }
 }

The result is this: ![alt text][1] [1]: /storage/temp/4381-asdf.jpg

please show me how to see my star :D

asdf.jpg (493.5 kB)
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Answer by GeorgeRigato · Oct 24, 2012 at 06:20 AM

My guess here you use the `gameObject.active = false` to hide the object. Try using this:

 cometa_estrela.renderer.active = false;

I am thinking that when you deactivate the entire game object, it stops responding collisions, and can't reactivate itself.

Maybe I am wrong, but that is what crossed my mind.

Otherwise, your collision could be messed up, missing rigidbody or the trigger box checked.

Good luck!

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avatar image Talavang · Oct 24, 2012 at 12:42 PM 0
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no no. if you saw the picture (attached file "asdf.jpg"), the trail is there but i cant see it with the main camera.

theres no rigidbody. the gameobject is just a cube without render, only collision box.

the camera cant reach it ? why show me only 1. Its the same script !

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