Checkpoint_0_theForce.frag

void main() {
    
    vec2 pos = uv(); // origin is in center
    
    float r = sin(time + pos.x); 
    // x is left to right, why we see red moving from right to left think about us as a camera moving around
    // sin returns a number from -1 to 1, and colors are from 0 to 1, so it clips to no red half the time
	
	float g = sin(-time + pos.y * 20.); // higher frequency green stripes
	
	float b = mod(pos.x / pos.y,1.0);
	// when x is eual to y the colors will be brighter, mod repeats the space
	// mod is like a sawtooth function
	
    vec4 color = vec4(r,g,b,1);
    
    gl_FragColor = color;
}