Toward fast color-shaded images of CAD/CAM geometry
Abstract
It is pointed out that the growing demand for advanced three-dimensional (3-D) geometric modeling capabilities in mechanical CAD/CAM (Computer-Aided-Design/Computer-Aided-Manufacturing) systems is related to the need to attack complex design problems more directly and automatically. The advantages are being recognized of having an effective human-computer interface for handling complex 3-D geometry with a color-shaded image capability, in addition to a highly interactive line-drawing capability. A description is given of a software processor for rendering high-quality, color-shaded 'snapshots' directly and rapidly from commercial 3-D CAD/CAM systems. Attention is given to the importance of color-shaded images, the software processor architecture, color and illumination attributes, geometry-defining data, display type associativities, viw definition, polygonal approximation, scan conversion, and the Raster 4K rendering algorithm, and Raster4K performance.
- Publication:
-
IEEE Computer Graphics Applications
- Pub Date:
- November 1983
- Bibcode:
- 1983ICGA....3...60S
- Keywords:
-
- Color Photography;
- Computer Aided Design;
- Computer Aided Manufacturing;
- Computer Graphics;
- Image Converters;
- Software Tools;
- Architecture (Computers);
- Imaging Techniques;
- Interactive Control;
- Man-Computer Interface;
- Scanning;
- Space Perception;
- Surface Geometry;
- Three Dimensional Models;
- Engineering (General)