Shading with Curve Light Sources1

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dc.contributor.authorBao, Hujunen_US
dc.contributor.authorYing, Jianguoen_US
dc.contributor.authorPeng, Qunshengen_US
dc.date.accessioned2014-10-21T07:37:46Z
dc.date.available2014-10-21T07:37:46Z
dc.date.issued1995en_US
dc.description.abstractA new shading model for curve light sources is presented. It accounts for both diffuse reflection and specular reflection of the illuminated surface. By regarding a linear light source as a directional quadrilateral light source with very small width, a simple formula is derived first for calculating the diffuse reflection component due to the illumination of the linear segment. The diffuse reflection of the surface by direct illumination of a curve light source is then evaluated by approximating the curve light with a series of linear segments. The specular reflection component due to a curve light source is represented by an integration taking Phong s specular model as the kernel and evaluated by summing the contributions from the linear segments. Finally, an efficient shadow detection algorithm for curve light sources is proposed. The images rendered with the shading model are very photo-realistic.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume14en_US
dc.identifier.doi10.1111/j.1467-8659.1995.cgf143-0217.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages217-227en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.1995.cgf143-0217.xen_US
dc.publisherBlackwell Science Ltd and the Eurographics Associationen_US
dc.titleShading with Curve Light Sources1en_US
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EG 1995 Conference Proceedings