Physically based simulation of Buddha Glory*
Liu Shiguang, Zhangye Wang, Gong Zheng, Changbo Wang, Peng Qun-sheng · Progress in Natural Science Materials International · 2006
Abstract This paper proposes a novel method of photorealistic simulation of Glory, a natural phenomenon of great visual beauty which can be observed in the area of famous Buddhism Holy Lands in China. This phenomenon is mainly caused by back-scattering of water droplets in fog or cloud. To simulate the glory, we first calculate the spectral scatter intensity of glory rings using Mie scattering theory. We then present a new shadow model to determine the deformed shape of the head and body of Buddha within the glory ring. The affect of atmospheric parameters such as the solar elevation angles, the density and size of water droplet in fog or cloud on the shape and color of Glory is also calculated. For rendering, we adopt the method of path scattering integral to generate the whole attenuated scene of Glory. Compared with the photographs of real Glory displays, our synthetic results are quite satisfactory. Supported by the Major State Basic Research Development Program of China ...