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Question by Dr4ne · Feb 01, 2019 at 03:33 PM · lightingglobal illumination

HDRP Horror light flicker and GI fade off

So i'm trying to have one of those "flickering" light effect and i just can't get it to work. The script works fine, but when i "deactivate" the light, the GI "fades out" instead of just going black. It does look like the GI just takes forever to disappear and i can't find a solution.

The script i'm using ( deactivating the children Light component and changing the shader emission color to black at once) :

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class light_flicker_02_random : MonoBehaviour
 {
     private Material _Matos;
     private Color Black = new Color(10f, 10f, 10f, 255f);
     private Color White = new Color(212f, 212f, 212f, 255f);
     private Color Blue = new Color(0f, 0f, 255f, 255f);
     [SerializeField]
     private float minTimeOn = 0f;
     [SerializeField]
     private float maxTimeOn = 1.5f;
     [SerializeField]
     private float minTimeOff = 0f;
     [SerializeField]
     private float maxTimeOff = 0.1f;
     private float changeTime = 0;
     private Light _Light;
 
 
     void Start()
     {
         _Matos = GetComponent<Renderer>().material;
         _Matos.SetColor("_EmissiveColor", White);
         _Light = GetComponentInChildren<Light>();
     }
 
 
     void Update()
     {
         if (Time.time > changeTime)
         {
             _Light.enabled = !_Light.enabled;
             if (_Light.enabled)
             {
                 changeTime = Time.time + Random.Range(minTimeOn, maxTimeOn);
                 _Matos.SetColor("_EmissiveColor", White);
             }
             else
             {
                 changeTime = Time.time + Random.Range(minTimeOff, maxTimeOff);
                 _Matos.SetColor("_EmissiveColor", Black);
             }
         }
     }
 
 }
 

I tried using "just lights" but it's really the same. Using just the shader emissive gives me weird results and i doubt it's really optimized. Not sure where to go from here, and suggestion is welcome. Thanks in advance :)

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