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W4294568100 abstract "In this paper, we present a new mathematical foundation for image-based lighting. Using a simple manipulation of the local coordinate system, we derive a closed-form solution to the light integral equation under distant environment illumination. We derive our solution for different BRDF's such as lambertian and Phong-like. The method is free of noise, and provides the possibility of using the full spectrum of frequencies captured by images taken from the environment. This allows for the color of the rendered object to be toned according to the color of the light in the environment. Experimental results also show that one can gain an order of magnitude or higher in rendering time compared to Monte Carlo quadrature methods and spherical harmonics." @default.
W4294568100 created "2022-09-04" @default.
W4294568100 creator A5010976792 @default.
W4294568100 creator A5076117344 @default.
W4294568100 date "2017-05-14" @default.
W4294568100 modified "2023-09-26" @default.
W4294568100 title "A Closed-Form Model for Image-Based Distant Lighting" @default.
W4294568100 doi "https://doi.org/10.48550/arxiv.1705.04927" @default.
W4294568100 hasPublicationYear "2017" @default.
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