As its calculation complexity is far more than that of localillumination, there has been yet few satisfying solution which achieves high quality and performance simultaneously.
The basic idea is illuminating the scene with the light probe images. To simplify the design of localillumination model, the bidirectional transmit distribution function is introduced.
在研究基于图像的局部光照模型时,又提出了双向折射率分布函数这一概念,从而简化了局部光照模型的设计。
3
Then the derivation of localillumination source is reported, the near-field electromagnetic scattering characteristics of some electrically large structures are calculated and analyzed.