runnable fragment
code snippet
uniform sampler2D inputImage;
uniform float adaptRate;
uniform float threshold;
uniform int useRGBA;
precision mediump float;
/*{
"CATEGORIES": [
"Noise"
],
"CREDIT": "by VIDVOX",
"DESCRIPTION": "Pixels that change become noise until they match the input again",
"INPUTS": [
{
"NAME": "inputImage",