The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2006
Filed:
Jan. 23, 2001
Shigeru Kitsutaka, Kawasaki, JP;
Shigeru Kitsutaka, Kawasaki, JP;
Namco Bandai Games Inc., Tokyo, JP;
Abstract
An objective of the present invention is to provide a game system, program and image generating method which can generate a more realistic image with reduced processing load by using an alpha value set depending on a depth value. Z-value for each pixel in an original image is transformed into Z-value that is formed of bits I to J which are positioned lower than the most significant bit in the Z-value. The alpha value for each pixel is set at a value corresponding to the Z-value. Representation of the depth of field or fog image is enabled by using the alpha value to generate an image. The Z-value is clamped to a given value depending on a bit value other than the bits I to J of the Z-value. Bits M to N and K to L (where K≧I≧L>M≧J≧N) in the Z-value are set as index numbers in LUTand LUTand used to perform texture mapping for transforming the Z-value into Z- and Z-values. These Z- and Z-values are used to determine the Z-value.