runnable fragment
code snippet
uniform sampler2D inputImage;
uniform float horizontal_magnitude;
uniform float vertical_magnitude;
uniform float color_magnitude;
uniform int mode;
precision mediump float;
/*{
"DESCRIPTION": "",
"CREDIT": "by VIDVOX",
"ISFVSN": "2",
"CATEGORIES": [
"Glitch", "Color Effect"
],
"INPUTS": [