PROBLEM TO BE SOLVED: To reproduce periphery diminishing of light with reality in an image which is photographed by a virtual camera. SOLUTION: When an image D1 is photographed at a prescribed image angle by the virtual camera, a first image data corresponding to this image D1 is stored to a storing section 2 in this program. Furthermore, a second image data corresponding to an image D2 for light diminishment for diminishing the light in a periphery section of the image D1 is stored to the storing section 2. Then, adjustment according to the image angle of the virtual camera is executed by a control section 1 for the second image data. Next, a process for superposing the second image data after adjustment to the first image data which corresponds to the image D1 which is photographed at the prescribed angle by the virtual camera is executed by the control section 1. Thus, image data for a monitor display in which the periphery section is subjected to light dimming is created and the image reproducing the effect of the periphery light dimming is displayed to the image display section by using the image data for monitor display subjected to vignetting in the periphery section. COPYRIGHT: (C)2010,JPO&INPIT

Image processing program, image forming apparatus and image processing control method

In one system embodying the disclosed halation simulation method, virtual images captured from multiple directions corresponding to a 3D model are synthesized to generate a wide-angle image, and a halation image of a perspective projection of said 3-D model is generated. Said wide-angle image and halation image of said perspective projection are synthesized to obtain a wide-angle image of the 3-D model in which halation has been synthesized.

Halation simulation method, device, and program

PROBLEM TO BE SOLVED: To achieve the video expressions of the fluctuation of the rays of light with the high sense of presence by simple processing. SOLUTION: This image generation device for generating a two-dimensional image by developing objects arranged in a virtual three-dimensional space into a two-dimensional plane is provided with: an object data storage part 5,031 for storing a light source object expressing a light source and a radiant flux object expressing the rays of light reflected from the light source; an object arrangement part 5,041 for arranging the radiant flux object in front of the light source object by using the point of view of the virtual three-dimensional space as a reference; a color information generation part 5,042 for generating color information for continuously changing the color of the radiant flux object; a transparency information generation part 5,043 for generating transparency information for continuously changing the transparency of the radiant flux object; and a rendering part 5,044 for rendering the radiant flux object based on the color information and the transparency information. COPYRIGHT: (C)2008,JPO&INPIT

Image generation device, game machine and program

The invention provides a halo gradient realizing method and device. The method comprises the steps of detecting whether the sun in the visual angle space of a camera is blocked on the basis of a current scene depth map for describing the depth relationship between an object in the current scene and the camera; when detecting that the sun is blocked, calculating first halo transparency of the current frame scene according to the previous frame halo transparency of the previous frame scene and recording the first halo transparency; calculating second halo transparency of the current frame sceneaccording to the changing situation of the sun entering or leaving the visual angle space of the camera; and calculating target transparency according to the first halo transparency and the second halo transparency and carrying out halo gradient rendering according to the target transparency. By means of the method, the effect that the sun halo fades out or fades in when the sun leaves or enters the visual angle space of the camera can be realized; and the halo gradient effect when the sun is blocked by the object can also be realized when the sun is in the visual angle space of the camera.

Halo gradient realizing method and device

PROBLEM TO BE SOLVED: To realize lens flare expression realistically by a simple method in computer graphics SOLUTION: After a picture photographed with a virtual camera arranged within a three-dimensional virtual space is drawn in an RGB channel of a frame buffer for game screen drawing, a concentric filter picture P1 is drawn in an alpha channel Next, separately, a light spot picture P2 is generated, which arranges a light source texture for expressing the light source L and pictures of light spots M (M1 to M5) to be source of an expression of the lens flare in conformity to a specified rule along a straight line connecting a position of the light source L in the screen with a position in the center of the screen Then, on the basis of an alpha value of an alpha channel, filter processing is applied to the light spot picture P2 by alpha composition to express color information, processing result is added and combined to the RGB channel for drawing COPYRIGHT: (C)2005,JPO&NCIPI

Masato Sugano

Papers

Program, information storage medium, and game device