Caustics mapping: an image-space technique for real-time caustics.

Musawir A Shah; Jaakko Konttinen; Sumanta Pattanaik

doi:10.1109/tvcg.2007.32

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Caustics mapping: an image-space technique for real-time caustics.

Musawir A Shah·Jaakko Konttinen·Sumanta Pattanaik

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Abstract

In this paper, we present a simple and practical technique for real-time rendering of caustics from reflective and refractive objects. Our algorithm, conceptually similar to shadow mapping, consists of two main parts: creation of a caustic map texture, and utilization of the map to render caustics onto nonshiny surfaces. Our approach avoids performing any expensive geometric tests, such as ray-object intersection, and involves no precomputation; both of which are common features in previous work. The algorithm is well suited for the standard rasterization pipeline and runs entirely on the graphics hardware.

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Algorithms Computer Graphics Computer Systems Image Enhancement Image Interpretation, Computer-Assisted Imaging, Three-Dimensional Lighting Numerical Analysis, Computer-Assisted User-Computer Interface Journal Article

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Musawir A Shah, Jaakko Konttinen, Sumanta Pattanaik. Caustics mapping: an image-space technique for real-time caustics.. https://doi.org/10.1109/tvcg.2007.32

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