Real-time rendering of approximate caustics under environment illumination
We present a real-time GPU caustics rendering technique for dynamic scenes under environment illumination taking into account light occlusion. The dynamic scenes consist of caustic objects (reflective and/or refractive objects which produce caustics) and receiver objects (non-reflective and non-refr...
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sg-ntu-dr.10356-995462020-05-28T07:18:45Z Real-time rendering of approximate caustics under environment illumination Tandianus, Budianto Johan, Henry Seah, Hock Soon School of Computer Engineering DRNTU::Engineering::Computer science and engineering We present a real-time GPU caustics rendering technique for dynamic scenes under environment illumination taking into account light occlusion. The dynamic scenes consist of caustic objects (reflective and/or refractive objects which produce caustics) and receiver objects (non-reflective and non-refractive), that can be translated and rotated. As the light source, we consider environment illumination (distant lights from all directions) which we approximate as a set of important directional lights. Our rendering technique is able to generate approximate caustics (cast on receiver objects) as well as volumetric caustics. As the preprocessing, we precompute the caustic patterns of caustic objects for several directional lights and store them in caustic images. During the rendering, we interpolate the precomputed caustic patterns based on the important directional lights which approximate the given environment illumination. The important directional lights are obtained by using our proposed environment cube map segmentation technique. Our proposed technique is able to generate real-time caustics which are visually similar to the caustic generated by using a commercial renderer mental ray. 2013-10-03T02:08:13Z 2019-12-06T20:08:34Z 2013-10-03T02:08:13Z 2019-12-06T20:08:34Z 2011 2011 Journal Article Tandianus, B., Johan, H., & Seah, H. S. (2011). Real-time rendering of approximate caustics under environment illumination. Entertainment computing, 3(4), 129-141. https://hdl.handle.net/10356/99546 http://hdl.handle.net/10220/16221 10.1016/j.entcom.2011.11.004 en Entertainment computing |
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DRNTU::Engineering::Computer science and engineering Tandianus, Budianto Johan, Henry Seah, Hock Soon Real-time rendering of approximate caustics under environment illumination |
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We present a real-time GPU caustics rendering technique for dynamic scenes under environment illumination taking into account light occlusion. The dynamic scenes consist of caustic objects (reflective and/or refractive objects which produce caustics) and receiver objects (non-reflective and non-refractive), that can be translated and rotated. As the light source, we consider environment illumination (distant lights from all directions) which we approximate as a set of important directional lights. Our rendering technique is able to generate approximate caustics (cast on receiver objects) as well as volumetric caustics. As the preprocessing, we precompute the caustic patterns of caustic objects for several directional lights and store them in caustic images. During the rendering, we interpolate the precomputed caustic patterns based on the important directional lights which approximate the given environment illumination. The important directional lights are obtained by using our proposed environment cube map segmentation technique. Our proposed technique is able to generate real-time caustics which are visually similar to the caustic generated by using a commercial renderer mental ray. |
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School of Computer Engineering |
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School of Computer Engineering Tandianus, Budianto Johan, Henry Seah, Hock Soon |
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Article |
author |
Tandianus, Budianto Johan, Henry Seah, Hock Soon |
author_sort |
Tandianus, Budianto |
title |
Real-time rendering of approximate caustics under environment illumination |
title_short |
Real-time rendering of approximate caustics under environment illumination |
title_full |
Real-time rendering of approximate caustics under environment illumination |
title_fullStr |
Real-time rendering of approximate caustics under environment illumination |
title_full_unstemmed |
Real-time rendering of approximate caustics under environment illumination |
title_sort |
real-time rendering of approximate caustics under environment illumination |
publishDate |
2013 |
url |
https://hdl.handle.net/10356/99546 http://hdl.handle.net/10220/16221 |
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