Kabushiki Kaisha Sega Enterprises

Kabushiki Kaisha Sega

Naohiro Warama

Hideki Tanaka

Shinobu Hayashi

Yuichiro Mine

Makio Kida

Yoshifusa Hayama

Kazuko Noguchi

Takeharu Tanimura

Kazunori O

Tadahiro Kawamura

Seiichi Yamagata

Shigenobu Nakamura

Yuichi Higuchi

The present invention has as an object to propose a texture mapping method which enables smooth shading, and is also appropriate for conserving memory resources. In order to achieve this object, in this invention, data regions with different color tones are set so as to form density gradients in the U coordinate direction and in the V coordinate direction of the texture data. If the brightness of the surface of the object to which texture mapping is performed is I, then among the coordinates to be read to access texture data, the U coordinate is calculated as U=a*I+b, and the V coordinate is determined from V=d. The value of the dynamic variable d can be set appropriately according to the application. Because the texture data is such that color tone density gradients are formed in two mutually orthogonal directions, smooth shading is possible, and a plurality of texture memory areas can be consolidated to conserve memory usage.

Data structure for texture data, computer program product, and texture mapping method

In an image processing device composed such that it can display a prescribed object while changing the shape of said object, there is provided a first memory for recording information for first polygons which form the object; a second memory for recording information for second polygons, which form the object and are linked to the first polygons; and when the shape of the object is changed, the shapes of said second polygons are changed such that no gaps are produced between the first polygons and the second polygons. Accordingly, it is possible to achieve a more realistic object representation, with the joint regions moving in a natural manner.

Image processing device, image processing method and recording medium

In an image processing device composed such that it can display a prescribed object whilst changing the shape of the object. Furthermore, the image processing device includes a first memory for recording information for first polygons which form the object; a second memory for recording information for second polygons that form the object and are linked to the first polygons; and when the shape of the object is changed, the shapes of the second polygons are changed such that no gaps are produced between the first polygons and the second polygons. Using computer graphics in a video game it is possible to achieve a more realistic object representation, wherein joint regions move in a natural manner.

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Tokyo, Japan

Naohiro Warama