Full metadata record
DC pole | Hodnota | Jazyk |
---|---|---|
dc.contributor.author | Gaitatzes, Athanasios | |
dc.contributor.author | Chrysanthou, Yiorgos | |
dc.contributor.author | Papaioannou, Georgios | |
dc.contributor.editor | Skala, Václav | |
dc.date.accessioned | 2013-02-25T11:35:09Z | |
dc.date.available | 2013-02-25T11:35:09Z | |
dc.date.issued | 2008 | |
dc.identifier.citation | Journal of WSCG. 2008, vol. 16, no. 1-3, p. 17-24. | en |
dc.identifier.isbn | 978-80-86943-14-5 | |
dc.identifier.issn | 1213–6972 (hardcopy) | |
dc.identifier.issn | 1213–6980 (CD-ROM) | |
dc.identifier.issn | 1213–6964 (online) | |
dc.identifier.uri | http://hdl.handle.net/11025/1316 | |
dc.description.abstract | We present a novel method to accelerate the computation of the visibility function of the lighting equation, in dynamic scenes composed of rigid, non-penetrating objects. The main idea of the technique is to pre-compute for each object in the scene its associated four-dimensional field that describes the visibility in each direction for all positional samples on a sphere around the object, we call this a displacement field. We are able to speed up the calculation of algorithms that trace visibility rays to near real time frame rates. The storage requirements of the technique, amounts from one byte to one bit per ray direction making it particularly attractive to scenes with multiple instances of the same object, as the same cached data can be reused, regardless of the geometric transformation applied to each instance. We suggest an acceleration technique and identify the sampling method that gives the best results based on experimentation. | en |
dc.format | 8 s. | cs |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | en |
dc.publisher | Václav Skala - UNION Agency | cs |
dc.relation.ispartofseries | Journal of WSCG | en |
dc.rights | © Václav Skala - UNION Agency | cs |
dc.subject | nepřímé osvětlení | cs |
dc.subject | viditelnost | cs |
dc.subject | rovnoměrné rozdělení | cs |
dc.subject | polokoule | cs |
dc.subject | okolní okluze | cs |
dc.subject | sledování paprsku | cs |
dc.title | Presampled visibility for ambient occlusion | en |
dc.type | článek | cs |
dc.type | article | en |
dc.rights.access | openAccess | en |
dc.type.version | publishedVersion | en |
dc.subject.translated | indirect lighting | en |
dc.subject.translated | visibility | en |
dc.subject.translated | uniform distribution | en |
dc.subject.translated | hemisphere | en |
dc.subject.translated | ambient occlusion | en |
dc.subject.translated | ray tracing | en |
dc.type.status | Peer-reviewed | en |
Vyskytuje se v kolekcích: | Number 1-3 (2008) |
Soubory připojené k záznamu:
Soubor | Popis | Velikost | Formát | |
---|---|---|---|---|
Gaitatzes.pdf | 1,67 MB | Adobe PDF | Zobrazit/otevřít |
Použijte tento identifikátor k citaci nebo jako odkaz na tento záznam:
http://hdl.handle.net/11025/1316
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