export function beforeRender(delta){
t1 = time(0.1)*PI2;
t2 = time(.1);
t3 = time(.5);
t4 = time(0.1)*PI2;
t5 = time(0.05);
t6 = time(0.02);
}

export function render(index) {
h = sin(t1)
m = (.3 + triangle(t2) * .2)
h = h + (((index - pixelCount / 2 ) / pixelCount * (triangle(t3) * 10 + 4 * sin(t4)) % m))
s1 =  triangle((t5 + index / pixelCount * 5) % 1);
s1 = s1 * s1
s2 = triangle((t6 - (index - pixelCount) / pixelCount) % 1);
s2 = s2 * s2 * s2 * s2
s = 1 -triangle(s1 * s2)
v = (s1 >s2) + .5
hsv(h, s, v)
}