Interactive caustics using local precomputed irradiance
Interactive caustics using local precomputed irradiance
复制标题
使用局部预计算辐照度的交互式焦散
DOI:
10.1109/pccga.2004.1348344
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
P. Shirley
中科院分区:
文献类型:
--
作者:
Chris Wyman;C. Hansen;P. Shirley
Bright patterns of light focused via reflective or refractive objects onto matte surfaces are called "caustics". We present a method for rendering dynamic scenes with moving caustics at interactive rates. This technique requires some simplifying assumptions about caustic behavior allowing us to consider it a local spatial property which we sample in a preprocessing stage. Storing the caustic locally limits caustic rendering to a simple lookup. We examine a number of ways to represent this data, allowing us to trade between accuracy, storage, run time, and precomputation time.