Sampling of Environment Maps for Image-based Lighting [Shaders Monthly #13]

[@xinyanqiu3601]

This is the best class I've ever heard, thank you!

[@lambcrystal583]

That's the most clear and convincing learning resource for cg i had ever seen.

[@mahalis]

Thank you for publishing this-really appreciate the clear explanation and walkthrough.

[@DigitalDuo2211]

Love these videos! Keep up the great work!🎉

[@DigitalDuo2211]

Can this technique also be used for the specular part? Thanks again for these videos. Looking forward to watching the next ones.

[@cleyang]

I can reproduce the diffuse part by Sampling the Environment Maps method in this video, but how should I handle the specular part? Can you provide some relevant articles? Thank you very much!

[@gsn-composer]

For the specular part, it is usually better to sample the BRDF rather than the envmap. You can watch Shaders Monthly #11. The most general solution would be "multiple importance sampling", which is mentioned at the end of the video: graphics.stanford.edu/courses/cs348b-03/papers/veach-chapter9.pdf

[@unveil7762]

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