Optimized specular highlight generation

Details Optimized specular highlight generation Optimized specular highlight generation

2005-01-10

2008-11-25

Wu, Xiao M. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphic processing system

Graphic command processing

C345S426000, C345S589000

Reexamination Certificate

active

07456837

ABSTRACT:
A method for optimized specular highlight generation is presented. A single microprocessor instruction is used to generate an intensity value based upon a viewing angle value. An application stores a viewing angle value in an input register. When called, the “intensity instruction” retrieves the viewing angle value from the input register, and calculates an intensity value using three distinct steps. In turn, the intensity instruction stores the intensity value in an output register for the application to retrieve and further process.

REFERENCES:
patent: 7143126 (2006-11-01), Fossum et al.
patent: 2005/0004958 (2005-01-01), Contini et al.
NA900814, IBM Technical Disclosure Bulletin, Aug. 1990, US, “Simple Way to Generate Unusual Specular Reflections,” vol. 33, Issue 3A, pp. 14-15.
Apple Inc., Mac OS X Assembler Reference: PowerPC Assembler Instructions, 2003.

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