BRDF LUT generation for PBR Pipelines
Simple program that generates BRDF lookup tables for the split sum approximation of UE4-based PBR. Usage: BRDFGenerator -f [filename] -s [size] -n [samples] -b [bits]
Options:
More Reading:
http://gamedevs.org/uploads/real-shading-in-unreal-engine-4.pdf