Rendering images using a russian roulette methodology for...

G - Physics – 06 – T

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G06T 15/50 (2011.01)

Patent

CA 2449282

A computer graphics system for generating a pixel value for a pixel in an image, the pixel being representative of a point in a scene. The computer graphics system generates the pixel value to simulate global illumination for a plurality of colors, global illumination being represented by an evaluation of a function f(x), the function f(x) having the form f(x)=g(x)+} K((x,y) f(y) dy, where f(x) and similarly f(y) is unknown function, and g(x) and K(x,y) are known functions, with K(x,y) serving as a "kernel" of the integral, the kernel K(x,y) including a functions associated with at least two colors.

L'invention concerne un système infographique conçu pour générer une valeur de pixel pour un pixel dans une image, le pixel représentant un point dans une scène. Le système infographique génère la valeur de pixel afin de simuler un éclairement lumineux global pour une pluralité de couleurs, ledit éclairement lumineux global étant représenté par une évaluation d'une fonction f(x), de forme f(x)=g(x)+} K(x,y) f(y) dy, f(x) et f(y), de façon similaire, sont des fonctions inconnues, g(x) et K(x,y) sont des fonctions connues, K(x,y) servant de <= noyau >= de l'intégrale, le noyau K(x,y), comprenant une fonction associée à au moins deux couleurs.

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