Spectral domain decomposition method for physically-based rendering of photochromic/electrochromic glass windows
This paper covers the time consuming issues intrinsic to physically-based image rendering algorithms.First,glass materials optical properties were measured on samples of real glasses and other objects materials inside an hotel room were characterized by deducing spectral data from multiple trichromatic images.We then present the rendering model and ray-tracing algorithm implemented in Virtuelium,an open source software.In order to accelerate the computation of the interactions between light rays and objects,the ray-tracing algorithm is parallelized by means of domain decomposition method techniques.Numerical experiments show that the speedups obtained with classical parallelization techniques are significantly less significant than those achieved with parallel domain decomposition methods.
Image rendering Physically-based rendering Optical Ray-tracing Domain decomposition Parallel computing
Guillaume Gbikpi-Benissan Patrick Callet Frédéric Magoulès
Ecole Centrale Paris,France
国际会议
湖北咸宁
英文
117-121
2014-11-24（万方平台首次上网日期，不代表论文的发表时间）