004

void main(){
    vec3 c =black;
    float f = snoise(vec3(uv().x  * .2, uv().y * .2, speed.y * .025));
    c += hsv2rgb(vec3(f *(1.0 + .1 * bands.x), .75, .75));
    gl_FragColor= vec4(c, 1.0);
}