Special purpose memory for graphics and display apparatus using

Details Special purpose memory for graphics and display apparatus using Special purpose memory for graphics and display apparatus using

1998-04-14

1999-06-29

Powell, Mark R.

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

345502, 345503, 345506, 345509, 345515, 345518, G06T 1500

Patent

active

059174960

ABSTRACT:
The present invention relates to a three-dimensional graphic display apparatus for performing a hidden surface removal and color blending, and particularly to a configuration of a special purpose memory for graphics and a configuration of a graphic display apparatus using the special purpose memory. The special purpose memory for graphics according to the present invention comprises a memory cell for holding intensity information (RGB) and window information about each pixel therein, an XY coordinate converter for converting XY coordinates of a pixel to be written to a memory address, an intensity blending processor, and hidden-surface removal and window comparators, all of which are formed on the same chip.

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Computer Graphics Proceedings, Annual Conference Series, 1994, FBRAM: A new Form of memory Optimized for 3D Graphics, Michael F. Deering et al.
Poulton, et al.: Breaking the Frame-Buffer Bottleneck with Logic-Enhanced Memories, IEEE Computer Graphics and Applications Magazine, v. 12, N. 6, Nov. 1992, pp. 65-74.

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