Title:
鏡面反射光強度の計算方法
Document Type and Number:
Japanese Patent JP3971380
Kind Code:
B2
Abstract:
The intensity of specularly reflected light from an illuminated object is represented by an algebraic expression including multiplication, addition, and subtraction operations. The algebraic expression is used in an illumination model, where the illumination model describes the color and intensity of light reflected by the illuminated object. Light reflected by the illuminated object is composed of ambient, diffuse, and specular components. The specular terms used in the illumination model are equivalent in functional form to the diffuse terms, thereby accelerating the computation of color vector c defined by the illumination model. A modified algebraic expression representing specularly reflected light from an illuminated object is defined and used in the illumination model, thereby accelerating computation of color vector c.
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Inventors:
Michael earl day
Application Number:
JP2003522033A
Publication Date:
September 05, 2007
Filing Date:
August 16, 2002
Export Citation:
Assignee:
Sony Computer Entertainment America, Inc.
International Classes:
G01J3/46; G06K9/00; G06T1/00; G06T5/00; G06T15/50; G06T15/60; G09G5/02; G06T
Domestic Patent References:
| JP2000137828A | ||||
| JP1055454A | ||||
| JP8137834A | ||||
| JP773342A | ||||
| JP6266854A |
Attorney, Agent or Firm:
Sakaki Morishita