Inside white light
Every color is already in white light — a prism just slows them down by different amounts.
Placeholder study — replace with your own.
Input: a webcam pointed at a desk lamp, used as the “white light” source.
Process: a GLSL TOP splits the image into a dozen wavelength bands and offsets each one with a slightly different refraction amount, so the lamp fans out into a spectrum. Moving the lamp moves the rainbow.
What we noticed: the edges of everything in the room were quietly hiding rainbows.