Amusement devices: games – Including means for processing electronic data – Perceptible output or display
Patent
1995-06-26
1996-11-26
Harrison, Jessica
Amusement devices: games
Including means for processing electronic data
Perceptible output or display
463 31, 395128, A63F 924
Patent
active
055779603
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an image synthesizing system using the texture mapping technique and a game playing apparatus using such an image synthesizing system.
BACKGROUND ART
Conventionally, an image synthesizing system for synthesizing a pseudo three-dimensional (3-D) image through a computer graphic technique is known. Such an image synthesizing system is broadly used as in various video games, airplane and other vehicle maneuvering simulators.
FIG. 12 shows the principle of such an image synthesizing system. The image synthesizing system previously stores image information relating to a 3-D object 310 in a virtual 3-D space 300. The image information relating to the 3-D object 310 previously stored in a memory as a shape model comprises a plurality of polygons (1) to (6) (polygons (4) to (6) are not shown).
If the image synthesizing system is used in a driving game, the 3-D object 310 may be in the form of a racing car which moves in the virtual 3-D space 300 while competing with a player's car or in the form of a stationary matter such as a road, house or the like which is disposed in the virtual 3-D space.
When a steering wheel or the like in a control panel 314 is maneuvered by a player 312, the view point of a driver (player) which is set in the virtual 3-D space 300 corresponding to the player's car is varied in position and direction. 3-D objects representing the racing car competing with the player's car and the surrounding matters are perspectively projected on a perspective projection screen 316 of view-point coordinate system and displayed as a pseudo 3-D image 318. Thus, the 3-D objects including the racing car and other matters can be rotated and translated in real time by the player 312 to perform a simulation in the virtual 3-D space while viewing it from the driver (player).
There is also known an improved image synthesizing system using a so-called texture mapping technique. As shown in FIG. 3, such an image synthesizing system separates image information relating to a 3-D object 310 represented as a shape model which comprises in combination with a plurality of polygons and graphic information to be applied to the polygons forming the shape model (hereinafter called "texture information") and stores the shape model and the graphic information. When an image is output, texture data 340, 342 are applied to the respective polygons to synthesize the image.
According to such a texture mapping technique, the patterns and colors of a graphic can be processed intricately without increasing the number of polygons to be processed.
It is desirable that such a real-time display type image synthesizing system can synthesize a high-quality image while reducing the burden on the hardware.
However, the image synthesizing system of the prior art has the following problems.
First Problem
As for the image synthesizing system of the prior art, if the quality of a graphic is to be improved, the amount of data processed by the hardware increases, and the number of objects displayed per scene is limited.
In the driving game, for example, vehicles running on a road, buildings arranged along the road and other scenery may be displayed as 3-D objects. Each of these 3-D objects is formed as a shape model which comprises in combination with a plurality of polygons. To increase the reality in the 3-D objects, the shape model must be represented by more combinations of polygons.
In the computer graphics, however, the processing of polygons provides very high burden on the hardware. Therefore, as the number of polygons required to form one 3-D object multiplies, the burden on the hardware also increases. In displaying the image in real time, number of display objects per scene is so limited that the game scene can end up being monotonous.
Second Problem
In the driving game, a 3-D object may be enlarged partially and displayed as when a car approaches to another car.
In such a case, if the texture data applied to the polygons have normal resolution, the enlarged display 3-D object is
REFERENCES:
patent: 4213252 (1980-07-01), Sullivan et al.
patent: 4343037 (1982-08-01), Bolton
patent: 4615013 (1986-09-01), Yan et al.
patent: 4692880 (1987-09-01), Merz et al.
patent: 4727365 (1988-02-01), Bunker et al.
patent: 4821212 (1989-04-01), Heartz
patent: 4827252 (1989-05-01), Busbridge et al.
patent: 4845651 (1989-07-01), Aizawa et al.
patent: 4953107 (1989-08-01), Hedley et al.
patent: 4994989 (1991-02-01), Usami et al.
patent: 5222204 (1993-06-01), Swanson
patent: 5224208 (1993-06-01), Miller, Jr. et al.
patent: 5261041 (1993-11-01), Susman
patent: 5317689 (1994-05-01), Nack et al.
patent: 5359526 (1994-10-01), Whittington et al.
patent: 5469535 (1995-11-01), Jaivis et al.
"Illustrated Computer Graphics," Computer Graphics User's Guide, Sep. 1985, pp. 97-106.
Harrison Jessica
Namco Ltd.
O'Neill Michael
LandOfFree
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