Texture mapping method and system

Details Texture mapping method and system Texture mapping method and system

1995-06-06

1998-05-12

Nguyen, Phu K.

Computer graphics processing and selective visual display system

Computer graphics processing

Graph generating

H04N 140

Patent

active

057512922

ABSTRACT:
A texture mapping computer graphics system includes a host computer with a main memory that stores texture data including a plurality of texels. A local memory stores at least a portion of the texture data. A local memory access unit, coupled to the local memory, accesses texels from the local memory. A texel data buffer, coupled to the local memory access unit, stores a limited number of texels most recently accessed by the access unit from the local memory. A texel interpolator, coupled to the texel data buffer, reads texels from predefined locations of the texel data buffer. The access unit accesses texels from the local memory only when such texels are unavailable to be re-read from the texel data buffer. A circuit, coupled to the interpolator and the local memory access unit, determines whether a current texel is available to be re-read from the texel data buffer. The circuit includes a comparator that compares an address of the current texel with an address of a texel most recently accessed from the local memory.

REFERENCES:
patent: 5029225 (1991-07-01), Ueda
patent: 5224208 (1993-06-01), Miller, Jr. et al.
patent: 5461712 (1995-10-01), Chelstowski et al.
patent: 5495563 (1996-02-01), Winser
patent: 5537224 (1996-07-01), Suzuoki et al.
patent: 5553208 (1996-09-01), Murata et al.
patent: 5572636 (1996-11-01), Sakuraba et al.

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