1975/06/01 by Bui Tuong Phong · 6 citations
Computer Science · Engineering · #Computer Graphics and Visualization Techniques #Simulation and Modeling Applications #3D Shape Modeling and Analysis
paper · pdf · doi:10.1145/360825.360839
openalex publication_date 1975/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
The quality of computer generated images of three-dimensional scenes depends on the shading technique used to paint the objects on the cathode-ray tube screen. The shading algorithm itself depends in part on the method for modeling the object, which also determines the hidden surface algorithm. The various methods of object modeling, shading, and hidden surface removal are thus strongly interconnected. Several shading techniques corresponding to different methods of object modeling and the related hidden surface algorithms are presented here. Human visual perception and the fundamental laws of optics are considered in the development of a shading rule that provides better quality and increased realism in generated images.