u/Bast0217

I made a 3D interactive graph of the process that creates rainbows following the one I previously made in 2D (which I realized contained a mistake). This took days to make and I almost gave up 5 times. Who knew this could be so difficult? I made it as accurate and user friendly as possible. I might later implement more accurate diminishing of the light’s intensity when I have time.

High resolution (full spectrum):
https://www.desmos.com/3d/lqkhrcbpdf

Lower resolution (for improved performance):
https://www.desmos.com/3d/axtjnznwuv

I made a 3D graph of the Oklab colour space to find the angle and lightness at which each primary, secondary and tertiary colour (using RGB) are the most colourful. I found out it’s very much not linear all. Green being the most compact colour and cyan and yellow/orange the most spread out. Blue was the darkest and yellow the lightest… which is pretty predictable.

🔗 Link: https://www.desmos.com/3d/n10bbnjdaf

Link: https://www.desmos.com/3d/hvzatn2tr5