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TheRealMJP / TheRealMJP.github.io

Backing repo for my blog
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An Introduction To Real-Time Subsurface Scattering #4

Open utterances-bot opened 4 years ago

utterances-bot commented 4 years ago

An Introduction To Real-Time Subsurface Scattering

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https://therealmjp.github.io/posts/sss-intro/

mmp commented 4 years ago

Great writeup! One small comment (only because this is so comprehensive in unwinding the history): regarding "an old trick for approximating subsurface scattering is to deliberately modify the N \cdot LN⋅L part of the lighting calculations in order to produce a result that resembles what you get from SSS.", in graphics, I think that goes back to Hanrahan and Kreuger's 1993 SIGGRAPH paper on subsurface scattering (Section 5.1, "first order approximation"). They in turn note that that they're effectively applying Seeliger's Law.

TheRealMJP commented 4 years ago

Thanks for pointing that out Matt, I've honestly never read that paper! Time to dig through some more references. :smiley: