lerp between emission colours

Question

hey guys, so i have been trying all day to do this and can't find anything on it anywhere, so i know how to lerp between colors for the main colour of a material, and i know how to set colours in C#, but ive been trying to lerp the emission colour from orange to red, and nothing seems to be working, here is my code;

please help me out here guys, i know i'm gonna look dumb when it turns out to be super simple :').

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class GemGlow : MonoBehaviour
 {
 public Material Mat;
 
 Vector4 red;
 
 Vector4 orange;
 
   
 
 void Start() {
 
 orange =  new Vector4(1.320755f, 0.5346785f,0.2928088f,0.8182f);
 
 red = new Vector4(0.858f, 0f,0f,0.8182f);
 
     var Mat = GetComponent<Renderer>().material;
 
     Mat.EnableKeyword("_EMISSION");
 
 
 
 
 
 }
 
 void Update() {
 
 Mat.SetColor("_EmissionColor",(Color.Lerp(orange, red, 1)));
 
  
  
 
 
  
 
 
 
     
 }
 }

Answer 1

btw i figured this out for anyone struggling,

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class GemGlowOrange : MonoBehaviour
 {
 public Material Mat;
 
 Color Red;
 
 Color red;
 
 Color lightpurple;
 
 Color orange;
 
 public bool isInDanger = false;
 
 
 float startTime;
 
 public float speed = 1.0f;
 
 
 
 void Start() {
 
     startTime = Time.time; // time since game started
 
 orange =  new Color(1.320755f, 0.5346785f,0.2928088f,1f); // making my colours RGBA
 
 Red = new Color(0.858f, 0f,0f,1f);
 
 lightpurple = new Color(1.320755f,0.2973427f,0.8263685f,1f);
 
 
     var Mat = GetComponent<Renderer>().sharedMaterial; // making a reference to the material so we can enable the emission keyword if you do not want this to affect every object using this
     //material then use "Getcomponent<Renderer>().material" the same goes with setting the color as you can see further down.
 
  
 
     Mat.EnableKeyword("_EMISSION"); // this is making sure this shader has the emission keyword enabled.
   
 
 
 
 
 
 }
 
 void Update() {
 
 
 
 
 
 
 
 
     if(!isInDanger){
 
     float frac = (Mathf.Sin(Time.time - startTime) * speed);
 
 GetComponent<Renderer>().sharedMaterial.SetColor("_EmissiveColor", Color.Lerp(lightpurple, orange, frac)); // getting the same material over and over again each frame and updating it's
 // emission colour
 
 
 
 
          
 
     } else if (isInDanger) {
          float frac = (Mathf.Sin(Time.time - startTime) * speed);
 
 GetComponent<Renderer>().sharedMaterial.SetColor("_EmissiveColor", Color.Lerp(Red, orange, frac)); // if it is in danger then it will alternate between red and orange.
 
    
 }

Answer 2

Answer by ThugsInMugs · Jul 06, 2020 at 04:52 PM

I cant test right now but wouldn't it just be Vector4.Lerp(Color 1 values, color 2 values, speed / Time.deltaTime); ? Lerping is for numerical values.

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lerp between emission colours

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