Rendering method and device, a game device, and a computer readable recording medium storing programs for rendering a three-dimensional model

A rendering method for rendering a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, the rendering method comprising:

• dividing a luminosity into a plurality of luminosity levels of various ranges;
• associating each of the luminosity levels with a reference luminosity;
• selecting the luminosity levels individually;
• calculating, each time said luminosity level is selected, luminosity at a position of each pixel inside said polygons in accordance with a luminosity predetermined for each of a plurality of apexes of said polygons, and
• plotting, only when a luminosity at the position of each pixel lies within a range of luminosity corresponding to said selected luminosity level, the pixel with a color in accordance with the reference luminosity corresponding to said selected luminosity level and a color predetermined for said polygons.

A rendering device that renders a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, the rendering device comprising:

• a calculator, for each of said polygons, that calculates a luminosity at a position of each pixel inside each of the polygons;
• a divider that divides the luminosity into a plurality of luminosity levels of various ranges;
• an assignor that assigns a representative luminosity to each of the luminosity levels;
• a determiner that determines in which luminosity level the calculated luminosity is included at the position of each pixel inside each of the polygons;
• a generator that generates a color of each pixel in accordance with the representative luminosity assigned to the determined luminosity level and a predetermined color of each of the polygons;
• and
• a plotter that plots each pixel inside each of the polygons in the generated color.

A rendering device that renders a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, the rendering device comprising:

• a divider that divides a luminosity into a plurality of luminosity levels of various ranges;
• an associator that associates each of the luminosity levels with a reference luminosity;
• a selector that selects, with luminosity being divided into levels within a certain range, luminosity levels individually from a plurality of luminosity levels, each level being associated in advance with a reference luminosity, and
• a plotter that calculates, each time said luminosity level is selected, luminosity at a position of each pixel inside said polygons in accordance with a luminosity predetermined for each of said plurality of apexes of said polygons, and that plots, only when a luminosity at the position of each pixel lies within a range of luminosity corresponding to said selected luminosity level, the pixel with a color in accordance with the reference luminosity corresponding to said selected luminosity level and a color predetermined for said polygons.

A computer readable recording medium that stores a program for rendering a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, said computer readable recording medium on which said program is stored instructing said computer to:

• calculate, for each of the polygons, luminosity at a position of each pixel inside each of the polygons;
• divide the luminosity into a plurality of luminosity levels of various ranges;
• assign a representative luminosity to each of the luminosity levels;
• determine in which luminosity level the calculated luminosity is included at the position of each pixel inside each of the polygons;
• generate a color of each pixel in accordance with the representative luminosity assigned to the determined luminosity level and a predetermined color of the polygon;
• and
• plot each pixel inside the polygon in the generated color.

A computer readable recording medium in which a program for rendering a three-dimensional model disposed in a virtual space and comprising a plurality of polygons is stored, said computer readable recording medium on which said program is stored instructing said computer to:

• divide a luminosity into a plurality of luminosity levels of various ranges;
• associate each of the luminosity levels with a reference luminosity;
• select, with luminosity being divided into levels, the luminosity levels individually from a plurality of luminosity levels having been associated in advance with a reference luminosity;
• calculate, each time said luminosity level is selected, luminosity at a position of each pixel inside said polygons in accordance with a luminosity predetermined for each of a plurality of apexes of said polygons;
• and
• plot, only when a luminosity at the position of each pixel lies within a range of luminosity corresponding to said selected luminosity level, the pixel with a color in accordance with the reference luminosity corresponding to said selected luminosity level and a color predetermined for said polygons.

A game device that renders a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, the game device comprising:

• a computer, and
• a reader that reads a program, from a computer readable recording medium on which the program to be executed by said computer is recorded, wherein said program instructs said computer to:
• calculate, for each of the polygons, a luminosity at a position of each pixel inside each of the polygons;
• divide the luminosity into a plurality of luminosity levels of various ranges;
• assign a representative luminosity to each of the luminosity levels;
• determine in which luminosity level the calculated luminosity is included at the position of each pixel inside each of the polygons;
• generate a color of each pixel in accordance with the representative luminosity assigned to the determined luminosity level and a predetermined color of each of the polygons;
• and
• plot each pixel inside each of the polygons in the generated colors.

A game device that renders a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, the game device comprising:

• a computer, and
• a reader that reads a program, from a computer readable recording medium on which the program to be executed by said computer is recorded, wherein said program instructs said computer to:
• divide a luminosity into a plurality of luminosity levels of various ranges;
• associate each of the luminosity levels with a reference luminosity;
• select luminosity levels individually from the plurality of luminosity levels having been associated in advance with a reference luminosity;
• calculate with a plotting function each time a luminosity level is selected, luminosity at a position of each pixel inside each of said polygons in accordance with a luminosity predetermined for each of a plurality of apexes of said polygons;
• and
• plot with a plotting function, only when a luminosity at the position of each pixel lies within a range of luminosity corresponding to said selected luminosity level, the pixel with a color in accordance with the reference luminosity corresponding to said selected luminosity level and a color predetermined for said polygons.

A game device that renders a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, the game device comprising:

• a computer,
• a reader that reads a program, from a computer readable recording medium on which the program to be executed by said computer is recorded,
• a calculator that calculates, for each of the polygons and in accordance with said program, luminosity at a position of each pixel inside each of the polygons;
• a divider that divides the luminosity into a plurality of luminosity levels of various ranges;
• an assigner that assigns a representative luminosity to each of the luminosity levels;
• a determiner that determines to which luminosity level the calculated luminosity is included at the position of each pixel inside each of the polygons;
• a generator that generates a color of each pixel in accordance with the representative luminosity assigned to the determined luminosity level and a predetermined color of each of the polygons;
• and
• a plotter that plots each pixel inside each of the polygons in the generated color.

A game device that renders a three-dimensional model disposed in a virtual space and comprising a plurality of polygons, the game device comprising:

• a computer,
• a reader that reads a program, from a computer readable recording medium on which the program to be executed by said computer is recorded,
• a divider that divides a luminosity into a plurality of luminosity levels of various ranges;
• an associator that associates each of the luminosity levels with a reference luminosity;
• a selector that selects, with the luminosity being divided into levelsin accordance with said program, luminosity levels individually from a plurality of luminosity levels, each level being associated in advance with a reference luminosity, and
• a plotter that calculates, each time a luminosity level is selected by said selector and in accordance with said program, luminosity at a position of each pixel inside said polygons in accordance with a luminosity predetermined for each of apexes of said polygons, and that plots, only when a luminosity at the position of each pixel lies within a range of luminosity corresponding to said selected luminosity level, the pixel with a color in accordance with the reference luminosity corresponding to said selected luminosity level and a color predetermined for said polygons.