uniform float brickSize;
uniform float fillSize;
uniform vec2 brickOffset;
uniform vec4 fillColor;
uniform vec4 brickColor;
precision mediump float;
/*
{
  "CATEGORIES" : [
    "Pattern", "Color"
  ],
  "DESCRIPTION" : "Generates a basic brick pattern",
  "ISFVSN" : "2",
  "INPUTS" : [