Global view-dependent illumination phenomena, in particular re\ufb02ections, greatly enhance the realism of computer-generated imagery. Current interactive rendering methods do not provide satisfactory support for re\ufb02ections on curved objects.
\nIn this paper we present a novel method for interactive computation of re\ufb02ections on curved objects. We transform potentially re\ufb02ected scene objects according to re\ufb02ectors, to generate virtual objects. These are rendered by the graphics system as ordinary objects, creating a re\ufb02ection image that is blended with the primary image. Virtual objects are created by tessellating scene objects and computing a virtual vertex for each resulting scene vertex. Virtual vertices are computed using a novel space subdivision, the re\ufb02ection subdivision. For general polygonal mesh re\ufb02ectors, we present an associated approximate acceleration scheme, the explosion map. For speci\ufb01c types of objects (e.g., linear extrusions of planar curves) the re\ufb02ection subdivision can be reduced to a 2-D one that is utilized more accurately and ef\ufb01ciently.<\/p>\n","protected":false},"excerpt":{"rendered":"
Global view-dependent illumination phenomena, in particular re\ufb02ections, greatly enhance the realism of computer-generated imagery. Current interactive rendering methods do not provide satisfactory support for re\ufb02ections on curved objects. In this paper we present a novel method for interactive computation of re\ufb02ections on curved objects. We transform potentially re\ufb02ected scene objects according to re\ufb02ectors, to generate […]<\/p>\n","protected":false},"featured_media":614763,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"25th SIGGRAPH 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