{Solved}Trying to add color loop to background using Vector4

Questions & Answers
1

This is what I have so far. It currently works on the Game Object I apply the script to. I’m just trying to make it so that the Vector4.Lerp works back and forth without stopping. Please help.

#pragma strict

private var backgroundColorMagenta : Color = Color.magenta;
private var backgroundColorGreen : Color = Color.green;
private var backgroundColorRed : Color = Color.red;
Color background = new Color(1f,0.83f,0f,1f)

function Start () {

}

function Update () {

	renderer.material.color = Color.Lerp(Vector4(0.82,0,1,1), Vector4(1,0.83,0,1), 0.05 * Time.time);
	
	if (this.gameObject.renderer.material.color == background)
	
		{
		
		{renderer.material.color = Color.Lerp(Vector4(1,0.83,0,1), Vector4(0.82,0,1,1), 0.05 * Time.time);
		
		}

	}

}
2

So you need a function to convert Time.time into a value that rises and falls between 0 and 1.

  function pingPong(t: float) : float {
       t = Mathf.Repeat(t, 2);
       return t < 1 ? t : 2 - t;
  }

then

  renderer.material.color = Color.Lerp(Vector4(1,0.83,0,1), Vector4(0.82,0,1,1), pingPong(0.05 * Time.time))
3

Change the pingPong function to:

C#

float v = t % 2;
return v < 1 ? v : 2 - v;

Javascript

var v : float = t % 2;
return v < 1 ? v : 2 - v;

whydoidoit’s version ensures it’s between 0 and 2 but and stores it as v but then never returns v only t. AFAIK Modulo is faster than Mathf.Repeat too even though it’s minimal, saving every process you can is always best.