merges = {
const a = addOverlayDemo(baseCanvas, octaves.a, 1 / numOctaves);
const b = addOverlayDemo(a, octaves.b, 1 / numOctaves);
const c = addOverlayDemo(b, octaves.c, 1 / numOctaves);
const d = addOverlayDemo(c, octaves.d, 1 / numOctaves);
const e = addOverlayDemo(d, octaves.e, 1 / numOctaves);
const f = addOverlayDemo(e, octaves.f, 1 / numOctaves);
const g = addOverlayDemo(f, octaves.g, 1 / numOctaves);
const h = addOverlayDemo(g, octaves.h, 1 / numOctaves);
const i = addOverlayDemo(h, octaves.i, 1 / numOctaves);
return { a, b, c, d, e, f, g, h, i };
}