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Enhancement Techniques for GPU-Based Rendering of Participating Media  

Cha, Deuk-Hyun (서강대학교 컴퓨터공학과)
Yi, Yong-Il (서강대학교 컴퓨터공학과)
Ihm, In-Sung (서강대학교 컴퓨터공학과)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.16, no.12, 2010 , pp. 1165-1176 More about this Journal
Abstract
In order to realistically visualize such participating media as cloud, smoke, and gas, the light transport process must be physically simulated inside the media. While it is known that this process is well described physically through the volume rendering equation, it usually takes a great deal of computation time for obtaining high-precision solutions. Recently, GPU-based, fast rendering methods have been proposed for the realistic simulation of participating media, however, there still remain several problems to be resolved. In this article, we describe our rendering techniques applied to enhance the performances and features of our GPU-assisted participating media renderer, and analyze how such efforts have actually improved the renderer. The presented techniques will be effectively used in volume renderers for creating various digital contents in the special effects industries.
Keywords
Participating media; volume rendering equation; volume photon mapping; GPU acceleration; light emitting phenomena; view frustum culling; filtering;
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