Simple Pixel Shader

Hello,

I wanted to know if Unity has a simple way, via script, to change the shaders color of a texture.

e.g.
While the script runs, a 3D sphere starts pulsing Red

gameObject.renderer.material.color = yourDesiredColor;

make a new script
add this to the start()

this.renderer.material.color = new Color(1f,0f,0f,.5f);

this will turn an object red when attached to it.

renderer.material.color is what your looking for.

material.color takes a color object

color(red,green,blue,alpha)

red,green,blue is a value between 0 and 255

http://www.colorspire.com/rgb-color-wheel/

that will allow you to pick a color and tell you the RGB value of it.

Alpha is the transparency

0 = invisible

.5 = opaque

1 = full visible

color also has basic color shorthand such as

color.red
color.green

You can modify renderer.material.color with some periodic function:

var speed = 1.0; // cycle takes about 6.28/speed seconds
var color1 = Color(0.2, 0, 0, 1); 
var color2 = Color(0.9, 0, 0, 1);

function Update(){
  // create sinusoidal value between 0 and 1:
  var sine = (Mathf.Sin(Time.deltaTime * speed)+1)/2;
  // swing between the two colors according to sine:
  renderer.material.color = Color.Lerp(color1, color2, sine);
}