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Accurate Analytic Approximations for Real-Time Specular Area Lighting

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Is it just me or is this 2015 SIGGRAPH paper really exciting?

However, I haven't seen any discussions about it yet, and the paper itself is ridiculously light on details. The video has more math in it than the paper!

Paper:
http://jmarvie.free.fr/Publis/2015_SIGGRAPH/2015_SiggraphTalk_AccurateAnalyticApproximationsForRealTimeSpecularAreaLighting.pdf

Video:

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It smells like patented.

Yeah I just saw a twitter convo where people were expressing that fear. The author has a long list of patents covering their research publications apparently...

Good news from that convo was that Epic's Brian Karis claims to have independently invented a similar but different technique. Hopefully he shares his findings in the future :)

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Nice.

Some years ago I spent some time on approximating area lights in a way I could consider passable... I decided to push it in the future and I can totally see that decision as correct.

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