I am working on a mod right now with a lot of worldgen, and I keep getting tripped up trying to figure out what the output of a noise function can be. Maybe I'm just bad at math but it seems like some of them produce in range [0, 1] and some produce in range [-1, 1]. Having the range written on the docs would be very handy.
Super bonus points if you could also please include one or two images of the resulting noise
Super duper Bonus points (Epic) if you document a little better what spot noise does? It's talked about a little in FFF 390, but I still have a hard time figuring out how to use it. I've figured out something okay-ish-looking but it feels like I'm stumbling around in the dark.