Paper1975
Illumination for Computer Generated Pictures
Bui Tuong Phong
Approximates specular highlights with a cosine power term cheap enough to compute per pixel, giving curved surfaces a convincing shine without simulating physical reflection.
Computer Science · Computer Graphics & Visualisation
Shading & Lighting Models
A topic within Computer Graphics & Visualisation, itself one of 11 topics in that field and part of Computer Science.
Reading on Shading & Lighting Models
22 works
Paper1982
A Reflectance Model for Computer Graphics
Robert L. Cook & Kenneth E. Torrance
Models a surface as a collection of microfacets to derive reflectance from roughness and Fresnel effects directly, replacing Phong's empirical highlight with one grounded in optics.