Physically based rendering of ice crystal halos

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dc.contributor.author Firmino, Arthur
dc.date.accessioned 2019-02-08T21:48:24Z
dc.date.copyright 2018 en_US
dc.date.issued 2019-02-08
dc.identifier.uri https://dspace.library.uvic.ca//handle/1828/10602
dc.description.abstract The anisotropic scattering properties of atmospheric ice crystals lead to complex and visually appealing halos, however these have yet to receive due modelling in physically based rendering systems. This project aims to ll that gap and render high quality, physically accurate images of these phenomena. To capture the crystal s scattering properties, represented by a phase function, we construct a virtual goniore ectometer simulating light rays incident on an ice crystal. A physically based renderer is extended to read our phase functions, allowing halos to be rendered by a volumetric path tracer. Multiple halos were rendered, with varying crystal shapes and orientations, and the resulting images were qualitatively compared with real photographs. The approaches used to approximate and sample the phase functions, despite yielding quality images, incurr an objectionable time and space cost. Possible alternatives and solutions are discussed in conclusion. en_US
dc.language.iso en en_US
dc.rights Available to the World Wide Web en_US
dc.subject rendering en_US
dc.subject physically based rendering en_US
dc.subject halos en_US
dc.subject anisotropic scattering en_US
dc.subject computer graphics en_US
dc.title Physically based rendering of ice crystal halos en_US
dc.type Project en_US
dc.contributor.supervisor Wyvill, Brian
dc.degree.department Department of Computer Science en_US
dc.degree.level Master of Science M.Sc. en_US
dc.description.scholarlevel Graduate en_US
dc.description.embargo 10000-01-01

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