Imperfect shadow maps for efficient computation of indirect illumination
Imperfect shadow maps for efficient computation of indirect illumination
复制标题
用于高效计算间接照明的不完美阴影贴图
DOI:
10.1145/1409060.1409082
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发表时间:
2008
影响因子:
6.2
通讯作者:
Ritschel T
中科院分区:
文献类型:
--
作者:
Ritschel T
We present a method for interactive computation of indirect illumination in large and fully dynamic scenes based on approximate visibility queries. While the high-frequency nature of direct lighting requires accurate visibility, indirect illumination mostly consists of smooth gradations, which tend to mask errors due to incorrect visibility. We exploit this by approximating visibility for indirect illumination withimperfect shadow maps---low-resolution shadow maps rendered from a crude point-based representation of the scene. These are used in conjunction with a global illumination algorithm based on virtual point lights enabling indirect illumination of dynamic scenes at real-time frame rates. We demonstrate that imperfect shadow maps are a valid approximation to visibility, which makes the simulation of global illumination an order of magnitude faster than using accurate visibility.
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DOI:
10.1109/pg.2007.37
发表时间:
2007-10
期刊:
15th Pacific Conference on Computer Graphics and Applications (PG'07)
影响因子:
--
作者:
Z. Dong;J. Kautz;C. Theobalt;H. Seidel
通讯作者:
Z. Dong;J. Kautz;C. Theobalt;H. Seidel
DOI:
10.2312/egwr/egsr06/227-234
发表时间:
2006-06
期刊:
--
影响因子:
--
作者:
Gaël Guennebaud;L. Barthe;M. Paulin
通讯作者:
Gaël Guennebaud;L. Barthe;M. Paulin
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
I. Wald;T. Kollig;Carsten Benthin;A. Keller;P. Slusallek
通讯作者:
P. Slusallek
DOI:
--
发表时间:
2007
期刊:
Applied Perception in Graphics and Visualization
影响因子:
--
作者:
Oscar Kozlowski;J. Kautz
通讯作者:
J. Kautz
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
Floris C. Wardenaar;Lindsay Morton;Kahyun Nam;Hannah Lybbert;Kinta D Schott;Colin Shumate;Hans van der Mars;Pamela Kulinna
通讯作者:
Pamela Kulinna