Perceptual rendering of participating media
نویسندگان
چکیده
منابع مشابه
Rendering Participating Media with Bidirectional Path Tracing
In this paper we show how bidirectional path tracing can be extended to handle global illumination effects due to participating media. The resulting image-based algorithm is computationally expensive but more versatile than previous solutions. It correctly handles multiple scattering in non-homogeneous, anisotropic media in complex illumination situations. We illustrate its specific advantages ...
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Natural volumetric media have phase functions which typically are sharply peaked in the forward scattering direction, with backscatter accounting for only a few percent of the total angular redistribution from a single scattering event. This property has been exploited in the past in the small-angle approximation for radiative transfer, successfully for many engineering and science applications...
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Volumetric light transport effects are significant for many materials like skin, smoke, clouds, snow or water. In particular, one must consider the multiple scattering of light within the volume. While it is possible to simulate such media using volumetric Monte Carlo or finite element techniques, those methods are very computationally expensive. On the other hand, simple analytic models have s...
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We consider the addition of physically-based weather effects like haze, fog and mist to images. Most computer graphics images are rendered under clear day or night conditions and little attention has been devoted to efficiently adding realistic weather effects. Multiple light scattering is dominant in a variety of atmospheric conditions (in general, most participating media) and is hard to mode...
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ژورنال
عنوان ژورنال: ACM Transactions on Applied Perception
سال: 2007
ISSN: 1544-3558,1544-3965
DOI: 10.1145/1278387.1278389