Image processing device, control method for image processing device and information recording medium

The present invention provides an image processing device capable of attaining shade expression on a surface of an object while reducing image processing load, and of reducing a sense of discomfort which the user may feel. A shading process execution unit (62) executes a shading process on the surfa...

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Bibliographic Details
Main Authors NAGAI TORU, SUZUKI EIJI, TSUNASHIMA TADAAKI, ENDO MASASHI
Format Patent
LanguageChinese
English
Published 09.09.2009
Subjects
AMUSEMENTS
CALCULATING
CARD, BOARD, OR ROULETTE GAMES
COMPUTING
COUNTING
GAMES
GAMES NOT OTHERWISE PROVIDED FOR
HUMAN NECESSITIES
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
INDOOR GAMES USING SMALL MOVING PLAYING BODIES
PHYSICS
SPORTS
VIDEO GAMES
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Summary:The present invention provides an image processing device capable of attaining shade expression on a surface of an object while reducing image processing load, and of reducing a sense of discomfort which the user may feel. A shading process execution unit (62) executes a shading process on the surface of the object, based on a pseudo-normal vector for each pixel of a texture image to be mapped onto the surface of the object. A shading process execution restraining unit (66) restrains execution of the shading process by the shading process execution unit (62), based on the distance from a viewpoint to the object. A pseudo-normal vector obtaining unit (60) stores information correlating the distance from the viewpoint with pseudo-normal vector information for obtaining a pseudo-normal vector of each pixel. Then, the pseudo-normal vector obtaining unit (60) obtains a pseudo-normal vector of each pixel, based on the pseudo-normal vector information correlated to the distance from the viewpoint to the object.
Bibliography:Application Number: CN2007835288