Re: blackbody and daylight functions


Mitch Prater
 

Aha - here's the one I was thinking of: https://www2.cs.duke.edu/courses/cps124/spring08/assign/07_papers/p91-preetham.pdf
There's also a similar night sky paper: http://graphics.stanford.edu/~henrik/papers/nightsky/nightsky.pdf

A quick search also turned up this: https://www.researchgate.net/publication/265111517_REAL-TIME_DAYLIGHT_SKY_COLOR_MODELING

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