Importance Driven Environment Map Sampling
Importance Driven Environment Map Sampling
复制标题
重要性驱动的环境地图采样
DOI:
10.1109/tvcg.2013.258
复制
发表时间:
2014
影响因子:
5.2
通讯作者:
Bashford-Rogers T
中科院分区:
文献类型:
--
作者:
Bashford-Rogers T
In this paper we present an efficient method for supporting image based lighting (IBL) for bidirectional methods. This improves both sampling of the environment, and the detection and sampling of important regions of the scene, such as windows and doors. These parts of the scene often have a small area proportional to that of the entire scene, so paths which pass through them are generated with a low probability. The method proposed in this paper improves sampling efficiency, by taking into account view importance, and modifies the lighting distribution to use light transport information from the camera. This method automatically constructs a sampling distribution in locations which are relevant to the camera position, thereby improving sampling of light paths. This approach can be applied to several bidirectional rendering methods, and results are shown for bidirectional path tracing, metropolis light transport and progressive photon mapping. When compared to other methods, efficiency results demonstrate speed ups of orders of magnitude.
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DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
P. Dutré;Y. Willems
通讯作者:
Y. Willems
DOI:
--
发表时间:
2005
期刊:
Eurographics Symposium on Rendering
影响因子:
--
作者:
Jason Lawrence;S. Rusinkiewicz;R. Ramamoorthi
通讯作者:
R. Ramamoorthi
DOI:
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发表时间:
2009
期刊:
J. Graphics, GPU, & Game Tools
影响因子:
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作者:
H. Dammertz;Johannes Hanika
通讯作者:
Johannes Hanika
DOI:
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发表时间:
2006
期刊:
Eurographics Symposium on Rendering
影响因子:
--
作者:
Abhijeet Ghosh;Arnaud Doucet;Wolfgang Heidrich
通讯作者:
Wolfgang Heidrich
DOI:
--
发表时间:
2005
期刊:
Eurographics Symposium on Rendering
影响因子:
--
作者:
David Burke;A. Ghosh;W. Heidrich
通讯作者:
W. Heidrich