Few problems with BRDF using Beckmann and GGX/Trowbridge-Reitz distribution for comparison - Stack Overflow
Simon's Tech Blog: Microfacet BRDF
LEAN Mapping
基于物理的渲染（PBR）白皮书】（四）法线分布函数相关总结- 知乎
What do glossy distribution models do? - Blender Stack Exchange
从Microfacet到GGX反射模型| Blog Ridge
What do glossy distribution models do? - Blender Stack Exchange
Spectacular Specular -LEAN and CLEAN specular highlights - ppt video online download
Sampling Anisotropic Microfacet BRDF – A Graphics guy's note
Spectacular Specular -LEAN and CLEAN specular highlights - ppt video online download
Reflectance (CineRender Surface Channel)
LearnOpenGL - Theory
PPT - LEAN Mapping PowerPoint Presentation, free download - ID:1838030
从Microfacet到GGX反射模型| Blog Ridge
Graphics Compendium
Advances in Real-Time Rendering in Games - online presentation
LEAN Mapping Marc Olano, Dan Baker Firaxis Games. - ppt download
Spectacular Specular -LEAN and CLEAN specular highlights - ppt video online download
Physically Based Shading and Image Based Lighting | Trent Reed
V-Ray | New GGX Shader Offers Better Microfacet Distribution Over Blinn or Phong - Lesterbanks
