Byeong-Joon Lee, Koojoo Kwon, Byeong-Seok Shin

KIPS Transactions on Software and Data Engineering, Vol. 5, No. 12, pp. 677-684, Dec. 2016
10.3745/KTSDE.2016.5.12.677,   PDF Download:
Keywords: Volume Rendering, Global Illumination, Volume Scattering, Ambient Occlusion, Ray-Casting, Material Representation
Abstract

For realistic rendering volume to calculate the light effects as well as the shade is essential. In order to produce the high quality of the resulting image, it is necessary to represent a global illumination, and it should be considered an indirect effect of the direct impact and scattering of light. It requires a lot of resources in order to perform this operation and, in particular, is very expensive when large amounts of data to be rendered as a volume data is consumed. In this paper, we generate a scatterer template according to the physical laws for each material. Considering that each object having material property stores photons of the template based on the Lambert illumination model. When the volume rendering in this paper, using the photon is stored in the template, based on the voxel to be sampled within the examination volume occluded, and it represents the global illumination of the scattering. Because the materials produced by the template requires a less resource only if comprised of a complex material, a simple operation can be expressed within the scattering volume at a low cost through.

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