Illumination-driven Mesh Reduction for Accelerating Light Transport Simulations

dc.contributor.authorReich, Andreasen_US
dc.contributor.authorGünther, Tobiasen_US
dc.contributor.authorGrosch, Thorstenen_US
dc.contributor.editorJaakko Lehtinen and Derek Nowrouzezahraien_US
dc.date.accessioned2015-06-23T04:49:21Z
dc.date.available2015-06-23T04:49:21Z
dc.date.issued2015en_US
dc.description.abstractProgressive light transport simulations aspire a physically-based, consistent rendering to obtain visually appealing illumination effects, depth and realism. Thereby, the handling of large scenes is a difficult problem, as in typical scene subdivision approaches the parallel processing requires frequent synchronization due to the bouncing of light throughout the scene. In practice, however, only few object parts noticeably contribute to the radiance observable in the image, whereas large areas play only a minor role. In fact, a mesh simplification of the latter can go unnoticed by the human eye. This particular importance to the visible radiance in the image calls for an output-sensitive mesh reduction that allows to render originally out-of-core scenes on a single machine without swapping of memory. Thus, in this paper, we present a preprocessing step that reduces the scene size under the constraint of radiance preservation with focus on high-frequency effects such as caustics. For this, we perform a small number of preliminary light transport simulation iterations. Thereby, we identify mesh parts that contribute significantly to the visible radiance in the scene, and which we thus preserve during mesh reduction.en_US
dc.description.number4en_US
dc.description.sectionheadersPerception and Simplificationen_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume34en_US
dc.identifier.doi10.1111/cgf.12688en_US
dc.identifier.pages165-174en_US
dc.identifier.urihttps://doi.org/10.1111/cgf.12688en_US
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectComputer Graphicsen_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectRay tracingen_US
dc.titleIllumination-driven Mesh Reduction for Accelerating Light Transport Simulationsen_US
Files