Abstract: A course CR is set in a virtual space SP along which a player character CH can move. The player character moves freely on the course, as long as it does not run off the course. In the course, a reference moving path is set indicating a standard moving path of the player character. A camera path of a virtual camera is set along the reference moving path. In the reference moving path, a object corresponding position (CP) is determined corresponding a position (CH(X,Y,Z)) of the player character in the virtual space. A position corresponding to the object corresponding position and a photographing condition are determined for the virtual camera.

Abstract: Optical reflection and refraction are expressed of an object extending through a water surface by rather light load processing without using any cut models prepared in advance. A photographing angle of a virtual camera for displaying the object OB is set. Virtual cameras A, B and C are generated for photographing reflected and refracted object. The image processing is executed by projecting texture value of transparent degree for each of media different from texture for other media. Parameters are defined concerning the virtual cameras A, B and C, in order to achieve a desired visual expression of an object extending through various media.

Abstract: Optical reflection and refraction are expressed of an object extending through a water surface by rather light load processing without using any cut models prepared in advance. A photographing angle of a virtual camera for displaying the object OB is set. Virtual cameras A, B and C are generated for photographing reflected and refracted object. The image processing is executed by projecting texture value of transparent degree for each of media different from texture for other media. Parameters are defined concerning the virtual cameras A, B and C, in order to achieve a desired visual expression of an object extending through various media.

Abstract: A course CR is set in a virtual space SP along which a player character CH can move. The player character moves freely on the course, as long as it does not run off the course. In the course, a reference moving path is set indicating a standard moving path of the player character. A camera path of a virtual camera is set along the reference moving path. In the reference moving path, a object corresponding position (CP) is determined corresponding a position (CH(X,Y,Z)) of the player character in the virtual space. A position corresponding to the object corresponding position and a photographing condition are determined for the virtual camera.

Abstract: Provided is a game screen display controlling method comprising the steps of displaying a first game screen obtained from a first projection of a virtual 3-D space; comparing the priority of the first projection with the priority of a second projection correlated with a predetermined area when there is a predetermined positional relationship between a character who moves in the virtual 3-D space and the predetermined area set within the virtual 3-D space; and displaying a second game screen obtained from the second projection of the virtual 3-D space when the priority of the second projection is higher than the priority of the first projection. Thereby, the invention allows game pictures for effectively rendering the virtual 3-D space to be presented corresponding to the situation of the game.

Abstract: Provided is a game screen display controlling method comprising the steps of displaying a first game screen obtained from a first projection of a virtual 3-D space; comparing the priority of the first projection with the priority of a second projection correlated with a predetermined area when there is a predetermined positional relationship between a character who moves in the virtual 3-D space and the predetermined area set within the virtual 3-D space; and displaying a second game screen obtained from the second projection of the virtual 3-D space when the priority of the second projection is higher than the priority of the first projection. Thereby, the invention allows game pictures for effectively rendering the virtual 3-D space to be presented corresponding to the situation of the game.

Abstract: Provided is a game screen display controlling method comprising the steps of displaying a first game screen obtained from a first projection of a virtual 3-D space; comparing the priority of the first projection with the priority of a second projection correlated with a predetermined area when there is a predetermined positional relationship between a character who moves in the virtual 3-D space and the predetermined area set within the virtual 3-D space; and displaying a second game screen obtained from the second projection of the virtual 3-D space when the priority of the second projection is higher than the priority of the first projection. Thereby, the invention allows game pictures for effectively rendering the virtual 3-D space to be presented corresponding to the situation of the game.

Abstract: A video game machine, which comprises a CPU for executing a program and a memory in which, based on the control provided by the CPU consonant with the execution of the program, are stored data that are read from the program and concern a plurality of characters to be displayed on a display device, provides a pseudo-sense of reality, as though a character projected on a display were a living entity. In such a video game machine, inheritance probabilities are defined for individual portions, of the data concerning a plurality of characters, that constitute the characters, and under a predesignated condition available during the execution of the program, a portion constituting one character, of portions constituting two characters, is maintained at a predetermined inheritance probability that has been defined, and data for new characters are prepared.