Physically Based Rendering

by Acerola

A demonstration of multiple popular brdfs in the graphics industry and an implementation of Disney's Principled BRDF.

Lambertian Diffuse

Blinn-Phong

Disney's Principled BRDF

Disney's Principled BRDF w/ indirect lighting sample

References

https://media.disneyanimation.com/uploads/production/publication_asset/48/asset/s2012_pbs_disney_brdf_notes_v3.pdf

https://boksajak.github.io/files/CrashCourseBRDF.pdf

https://github.com/wdas/brdf/blob/main/src/brdfs/disney.brdf