Fast Robust and Precise Shadow Algorithm for WebGL 1.0 Platform

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dc.contributor.authorMilet, Tomášen_US
dc.contributor.authorTóth, Michalen_US
dc.contributor.authorPečiva, Janen_US
dc.contributor.authorStarka, Tomášen_US
dc.contributor.authorKobrtek, Jozefen_US
dc.contributor.authorZemcik, Pavelen_US
dc.contributor.editorMasataka Imura and Pablo Figueroa and Betty Mohleren_US
dc.date.accessioned2015-10-28T06:32:00Z
dc.date.available2015-10-28T06:32:00Z
dc.date.issued2015en_US
dc.description.abstractThis paper presents fast and robust per-sample correct shadows for WebGL platform. The algorithm is based on silhouette shadow volumes and it rivals the standard shadow mapping performance. Our performance is usually superior when compared with high resolution shadow maps. Moreover, it does not suffer from a number of artefacts of shadow mapping and always provides per-pixel correct results. WebGL 1.0 provides just vertex and fragment shaders. Thus, we put all our algorithms evaluating silhouette edges to vertex shaders. Specially precomputed data are fed to the vertex shaders that extrude shadow volume sides just for silhouette edges. Some optimizations are deployed for performance and data size reasons that are important especially on low performance configurations, such as cost-effective tablets and mobile phones. The paper evaluates our solution on number of models. Our solution performs on par with high resolution omnidirectional shadow mapping.en_US
dc.description.sectionheadersFull Papersen_US
dc.description.seriesinformationICAT-EGVE 2015 - International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environmentsen_US
dc.identifier.doi10.2312/egve.20151314en_US
dc.identifier.isbn978-3-905674-84-2en_US
dc.identifier.issn1727-530Xen_US
dc.identifier.pages85-92en_US
dc.identifier.urihttps://doi.org/10.2312/egve.20151314en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectColoren_US
dc.subjectshadingen_US
dc.subjectshadowingen_US
dc.subjectand textureen_US
dc.subjectI.3.6 [Computer Graphics]en_US
dc.subjectMethodology and Techniquesen_US
dc.subjectGraphics data structures and data typesen_US
dc.titleFast Robust and Precise Shadow Algorithm for WebGL 1.0 Platformen_US
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