Also too high diffuse color for gold, I believe. The energy conservation law is not preserved very well.

Implemented Shlick's approximation for Fresnel reflectance. Playing with R(0°) values. According to Real-Time Rendering 3rd, default value for insulators vec3(0.02f) looks pretty persuasive. Still, gold (vec3(1.0f, 0.71f, 0.29f)) lacks some roughness detail :c

I'm just so glad I've found some free time to work on my pet projects, I gonna write everywhere about it!

Hi everyone. I'm new here and don't know how things work. Seems to be a great place!

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