040

void main(){
    vec3 c = black;
    c += step(.5, snoise(vec2(phi()+snoise(uv()), phi()-speed.y*.1))) *orange;
    c += step(.5, snoise(vec2(phi()+snoise(uv()*1.2), phi()-speed.y*.1))) *orange;
    c += step(.5, snoise(vec2(phi()+snoise(uv()*1.4), phi()-speed.y*.1))) *orange;
    gl_FragColor= vec4(c, 1.0);
}