Three-dimensional graphic controller

Details Three-dimensional graphic controller Three-dimensional graphic controller

1996-12-24

1998-11-03

Nguyen, Phu K.

Computer graphics processing and selective visual display system

Computer graphics processing

Shape generating

G06F 1500

Patent

active

058316345

ABSTRACT:
A three-dimensional computer graphic controller comprises a resistor for receiving information about the triangle, a Y-coordinate counter for fetching the stored information from the resistor and computing Y-coordinates of the triangle, an X-coordinate initial position adder for fetching an information about the first edge of the triangle from the resistor and computing an X-coordinate value of an initial position of the first edge, an X-coordinate width adder for fetching the information about the divided upper and lower triangles and computing individual widths of the triangle on the X-coordinate as well as for changing a variation in width on the X-coordinate between the divided upper and lower triangles, a color component adder for fetching the information about the triangle and individually computing red, green and blue components of the color of the triangle, a frame memory controller for fetching the Y-coordinates, the X-coordinate value of the start position and the individual widths triangle on the X-coordinate to control storing the same into a frame memory, and a line buffer with a capacity corresponding to a line for fetching the red, green and blue components from the color component adder and storing the same.

REFERENCES:
patent: 5396586 (1995-03-01), Van Aken

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