Storage medium, luminance computation apparatus and luminance computation method
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United States of America Patent
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Nov 21, 2017
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app pub date -
Sep 21, 2015
filing date -
Oct 31, 2014
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Abstract
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.
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