Tag: computer-graphics

Seven pioneers helped establish interactive drawing, 3D modeling, shading, ray tracing, animation, and programmable rendering as the foundations of computer graphics.

Steve Jobs' $10 million Pixar investment preserved a computer-graphics team until rendering and animation could become a durable media business.

The Cohen–Sutherland algorithm used compact region codes and bit operations to avoid unnecessary intersection work, making window clipping practical for early interactive graphics and simulation.

Jim Blinn's 1978 bump-mapping method perturbed surface normals instead of adding polygons, producing convincing wrinkles and roughness while keeping the underlying geometry unchanged.

Lance Williams' mipmapping method prefiltered a texture into a pyramid of progressively smaller images, making texture minification faster and reducing aliasing as objects recede from the viewer.

Shadow mapping renders the scene from a light's viewpoint, stores the nearest depth, and compares that map during normal rendering. The simple depth-buffer idea became a foundation of real-time shadow rendering.

Turner Whitted's 1979–1980 ray-tracing work showed how recursive rays could model mirrors, transparent materials and hard shadows in a unified image-synthesis algorithm.

The 1984 radiosity work of Cindy Goral, Kenneth Torrance, Donald Greenberg and Bennett Battaile brought object-to-object diffuse light exchange into image synthesis and made color bleeding a computed consequence of scene geometry.

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.

Jack Bresenham transformed line drawing into an incremental integer decision process, giving plotters and raster displays an efficient way to approximate continuous geometry.