Tag: university-of-utah

Henri Gouraud's 1971 smooth-shading method made polygonal models appear visually continuous by interpolating vertex intensities across faces, a practical compromise between flat polygons and more expensive per-pixel lighting.

Bùi Tường Phong's normal interpolation and local reflection model let polygon meshes produce smooth shading and controllable specular highlights without changing their geometry.

Ed Catmull's 1974 graphics research mapped photographs and patterns onto curved surfaces, separating visual appearance from geometric complexity.