# Animated Color Procedural Texture

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== Description == | == Description == | ||

− | + | Variation of the procedural perlin noise demo script, to generate textures with mixes of RGB by blending 3 independant RGB x,y, graphs. Also [[HSBColor]]. | |

== Usage == | == Usage == |

## Revision as of 06:56, 13 August 2011

Author: Antony Stewart

## Description

Variation of the procedural perlin noise demo script, to generate textures with mixes of RGB by blending 3 independant RGB x,y, graphs. Also HSBColor.

## Usage

Attach this script to the object that you wish to give a special effects color. Write maths functions for the red, blue, green variables that compute between 0 and 1, based on x,y, graphs. pastel colors are closer to .7 and bright colors closer to 1. for example if you want a psycadelically angry robot, make a black and red dot graph and animate with Time.time*30, i.e. warping very fast. You need to know abit about 2D graphs.

straight =sin(x*.3)

vertical =sin(y*.3)

oblique = sin(x+y) or (x-y)

wiggle = sin(x*.2+sin(y*.5)*.3)

complex wiggles = add multiple wiggles together.

Note: x and y =128 so sensible sine multipliers are 0.1,0.345 etc, not 20.

## JavaScript - AnimatedTextureUV.js

<javascript>

var gray = true;
var width = 128;
var height = 128;

private var texture : Texture2D;

function Start () { texture = new Texture2D(width, height, TextureFormat.RGB24, false); renderer.material.mainTexture = texture; }

function Update() { Calculate(); }

function Calculate() {

for (var y = 0;y<height;y++)
{
for (var x = 0;x<width;x++)
{
if (gray)
{
var red = 0;
var green = Mathf.Sin(x*.5+Time.time+Mathf.Sin(y*.23)*.8)/5+.5;
var blue = Mathf.Sin(x*.3+Time.time+Mathf.Sin(x*.43)*.4)/5+.5;

texture.SetPixel(x, y, Color (red, green, blue, 1)); } else {

texture.SetPixel(x, y, Color (1, 0, 0, 1));
}
}
}

texture.Apply(); } </javascript>