Triangle clipping for 3D graphics

Details Triangle clipping for 3D graphics Triangle clipping for 3D graphics

2007-05-08

2007-05-08

Nguyen, Thu V. (Department: 3661)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

Reexamination Certificate

active

09133741

ABSTRACT:
A geometry and lighting graphics accelerator with an improved clipping process. Clipping is performed prior to any calculation or evaluation of primitives for lighting, texture, fog, or color. Barycentric coordinates are used to define all vertices: original, intermediate, and final intersection points. Use of barycentric coordinates results in less storage space. A circular buffer is used during the clipping process to store input and output polygons. Use of the circular buffer also results is reduced storage requirements.

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Sutherland, Ivan E.et al. “Reentrant Polygon Clipping”, Communications of the ACM Jan. 1974, vol. 17, #1, pp. 32-42.

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