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Physically Based Fresnel In Blender


Cynicat Pro continues his explanation of Physically Based Rendering (PBR). If you haven't seen it yet watch part 1, An in-depth look at Physically Based Rendering first.

The Next Video in my Blender Physically Based Shading series where i cover how the Fresnel effect works and what blender is missing from its Fresnel node. hopefully you like it! =3

P.S. for those who don't know Fresnel is the math that describes how reflective a surface is. pretty important stuff.


  1. It doesn't work for me. I get some weird rectangles. Printscreen how it looks (left sphere):

    The right sphere is just simple mix shader (diffuse+glossy) and for Factor I use RGB Cruves with Layer Weight set to Fresnel.

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