geekyorion

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);
	return mix(rand(fl), rand(fl + 1.0), fc);
}

geekyorion

var sqrt = function(x) {
  var isGoodEnough = function(guess) {
    return Math.abs(guess * guess - x) / x < 0.001;
  };
  
  var improve = function(guess) {
    return (guess + x / guess) / 2;
  };
  
  var sqrIter = function(guess) {