STORAGE MEDIUM, LUMINANCE COMPUTATION APPARATUS AND LUMINANCE COMPUTATION METHOD

摘要

A luminance computation apparatus obtains information of light sources defined in a scene that is rendered, and defines a stochastic function used to determine whether or not to use a light source in a luminance computation for an object that is a predetermined distance from the light source corresponding to a luminance attenuation function in accordance with a distance from the light source for each of the light sources that are defined; The apparatus determines for each of the defined light sources a stochastic effective area of the light source based on the stochastic function for the respective defined light source, and performs a luminance computation for the predetermined object in the scene based on the stochastic function and the attenuation function of a light source for which the determined stochastic effective area is included in the object.

主权项

1. A non-transitory computer readable storage medium storing a program that causes a computer to execute:
processing for obtaining information of light sources defined in a scene that is to be rendered; processing for defining a stochastic function used to determine whether or not to use a light source in a luminance computation for an object that is a predetermined distance from the light source corresponding to a luminance attenuation function in accordance with a distance from the light source for each of the light sources that are defined; processing for determining for each of the defined light sources a stochastic effective area of the light source based on the stochastic function for the respective defined light source; and processing for performing a luminance computation for the predetermined object in the scene based on the stochastic function and the attenuation function of a light source for which the stochastic effective area is included in the object.