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https://hdl.handle.net/20.500.14279/12915
Τίτλος: | Fullsphere irradiance factorization for real‐time all‐frequency illumination for dynamic scenes | Συγγραφείς: | Michael-Grigoriou, Despina Chrysanthou, Yiorgos |
Major Field of Science: | Natural Sciences | Field Category: | Computer and Information Sciences | Λέξεις-κλειδιά: | Real-time illumination;Dynamic scenes;Soft-shadows;Factorization | Ημερομηνία Έκδοσης: | Δεκ-2010 | Πηγή: | Computer Graphics Forum, 2010, vol. 29, no. 8, pp. 2516-2529 | Volume: | 29 | Issue: | 8 | Start page: | 2516 | End page: | 2529 | Περιοδικό: | Computer Graphics Forum | Περίληψη: | Computation of illumination with soft-shadows from all-frequency environment maps, is a computationally expen-sive process. Use of pre-computation add the limitation that receiver’s geometry must be known in advance, sinceIrradiance computation takes into account the receiver’s normal direction. We propose a method that using a newnotion that we introduce, the Fullsphere Irradiance, allows us to accumulate the contribution from all light sourcesin the scene, on a possible receiver without knowing the receiver’s geometry. This expensive computation is donein a pre-processing step. The pre-computed value is used at run time to compute the Irradiance arriving at anyreceiver with known direction. We show how using this technique we compute soft-shadows and self-shadows inreal-time from all-frequency environments, with only modest memory requirements. A GPU implementation of themethod, yields high frame rates even for complex scenes with dozens of dynamic occluders and receivers. | ISSN: | 14678659 | DOI: | 10.1111/j.1467-8659.2010.01818.x | Rights: | © The AuthorsComputer Graphics Forumc © The EurographicsAssociation and Blackwell Publishing Ltd | Type: | Article | Affiliation: | University of Cyprus |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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2010-Fullsphere-irradiance-factorization-for-real-time-all-frequency-illumination-for-dynamic-scenes-Michael-and-Chrysanthou.pdf | Fulltext | 1.79 MB | Adobe PDF | Δείτε/ Ανοίξτε |
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