GPU-based refraction and caustics rendering on depth textures

doi:10.1145/1670252.1670282

Status	已發表Published
	GPU-based refraction and caustics rendering on depth textures
	Sheng B.; Sun H.; Liu B.; Wu E.
	2009-12-01
Source Publication	Proceedings - VRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry
Pages	139-144
Abstract	This paper presents a new technique for realtime rendering refraction and caustics effects. The algorithm can directly render complex objects represented by polygonal meshes without any precalculation, and allows the objects to be deformed dynamically through user interactions. Also, caustic patterns are rendered in the depth texture space. We accurately trace the photons' path and calculate the energy carried by the photons. As a result the caustic patterns are calculated without post-processing and temporal filtering over neighboring frames. Our technique can handle both the convex objects and concave objects, for the convex objects, the ray-convex-surface intersection is calculated by using a binary search algorithm; for the concave objects, the ray-concave-surface intersection is done by a linear search followed by a binary-search refinement step. The caustics can be also rendered for non-uniform deformation of both refractive object and receiver surface, allowing the interactive change of light and camera in terms of position and direction. Copyright © 2009 by the Association for Computing Machinery, Inc.
Keyword	Caustics Depth textures GPU Realtime rendering Refraction
DOI	10.1145/1670252.1670282
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via DOI View Full-Text via Scopus
Citation statistics
Document Type	Conference paper
Collection	University of Macau
Affiliation	Universidade de Macau
Recommended Citation GB/T 7714	Sheng B.,Sun H.,Liu B.,et al. GPU-based refraction and caustics rendering on depth textures[C], 2009, 139-144.
APA	Sheng B.., Sun H.., Liu B.., & Wu E. (2009). GPU-based refraction and caustics rendering on depth textures. Proceedings - VRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry, 139-144.

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