Rendering Inhomogeneous Surfaces with Radiosity

dc.contributor.authorMostefaoui, L.en_US
dc.contributor.authorDischler, J.M.en_US
dc.contributor.authorGhazanfarpour, D.en_US
dc.contributor.editorDani Lischinski and Greg Ward Larsonen_US
dc.date.accessioned2014-01-27T13:43:56Z
dc.date.available2014-01-27T13:43:56Z
dc.date.issued1999en_US
dc.description.abstractNatural surfaces are often complex: they nearly always exhibit small scale imperfections such as dirt, dust, cracks, etc., as well as large scale structural elements, as for wickerwork, brick walls, textiles, pebbles, etc., that are generally too complex to be modeled explicitly. In this paper, we propose a new multi-scale periodic texture model adapted to the efficient simulation of the previously mentioned features. This new model combines notions of virtual ray tracing (that we have recently introduced) with bi-directional texture function, while it also considers self-shadowing and inter-reflections at texture scale. In a second step, the texture model is integrated into hierarchical radiosity with clustering. Therefore, an extension of radiosity techniques, currently limited to texture maps, bump maps and general (homogeneous) reflectance functions, is proposed. The final rendering consists of applying a second ray tracing pass, based on a gathering methodology adapted to the model. The method provides images at a significant lower computation and memory consumption cost than with explicit models in the case of periodic features (wickerwork, grids, pavements, etc.) for a similar visual quality.en_US
dc.description.seriesinformationEurographics Workshop on Renderingen_US
dc.identifier.isbn3-211-83382-Xen_US
dc.identifier.issn1727-3463en_US
dc.identifier.urihttps://doi.org/10.2312/EGWR/EGWR99/283-292en_US
dc.publisherThe Eurographics Associationen_US
dc.titleRendering Inhomogeneous Surfaces with Radiosityen_US
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