uniform sampler2D noise;
uniform float scale = 0.005;
uniform float TIME = 0.0;
uniform vec2 TEXTURE_PIXEL_SIZE;

vec4 effect(vec4 color, Image TEXTURE, vec2 UV, vec2 screen_coords) {
    vec2 uv = UV;
    vec2 noise_pixel_size = vec2(256.0);
    vec2 noise_uv = UV / TEXTURE_PIXEL_SIZE / noise_pixel_size;
    vec2 sample = Texel(noise, vec2(noise_uv + TIME - mod(TIME, 0.15))).rb;
    vec2 rb = (sample - 0.5) * scale;
    uv += rb;
    color = Texel(TEXTURE, vec2(clamp(vec2(0.0, 0.0), uv, vec2(1.0,1.0))));
    return color;
}