Image generating device, image generating method, information recording medium, and program

Abstract

A storage unit (201) stores character object information (251) indicating the position and shape of a character object, surface object information (252) indicating the position and shape of a surface object, and light source information (253) indicating the position of a light source. A calculation unit (202) calculates a shadow of the character object projected on the surface object by the light source from the character object information (251), the surface object information (252), and the light source information (253). When it is judged by a judgment unit (203) that the character object and the surface object are in contact with each other, a change unit (204) changes the brightness of the shadow according to the distance between the character object and the surface object. A generation unit (205) generates an image representing the character object, the surface object, and the shadow.

Description

technical field [0001] The present invention relates to an image generating device, an image generating method, an information recording medium, and a program suitable for clearly representing the positional relationship between objects in a virtual space. Background technique [0002] There is known a method of expressing the shadow of an object projected by light emitted from a light source in a virtual space. For example, Patent Document 1 discloses a game device in which the number of polygons representing the shadow of a character object is changed according to the distance between the character object and the position of the virtual camera, and the number of polygons representing the shadow of the character object is changed according to the position of the light source. By changing the transparency of polygons, it is possible to express shadows while suppressing an increase in the amount of data. [0003] Patent Document 1: Japanese Patent No. 3926828 [0004] In th...

AI Technical Summary

Problems solved by technology

However, in the case of character objects performing subtle movements, sometimes it is not easy to distinguish the positional relationship between objects

For example, in the case where it is desired to express the appearance of a virtual dancer stepping on the dance steps, if the state of the feet on the ground and the state of not touching the ground are repeated frequently, it is difficult for the user to judge whether the feet of the current dancer are on the ground, and it is difficult to see clearly that the dancer is on the ground. what action to take

In addition, not limited to dancing, when expressing a deep 3D virtual space, for example, the image of the object itself may become an obstacle, making it difficult to distinguish whether the objects are in contact with each other from the position of the viewpoint of the virtual camera that becomes the viewpoint. Or the relative positional relationship such as the degree of proximity to each other

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