| Title: | A Critical Review of the Preetham Skylight Model |
| Authors: | Zotti, Georg Wilkie, Alexander Purgathofer, Werner |
| Citation: | WSCG '2007: Short Communications Proceedings: The 15th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2007 in co-operation with EUROGRAPHICS: University of West Bohemia, Plzen, Czech Republic, January 29 – February 1, 2007, p. 23-30. |
| Issue Date: | 2007 |
| Publisher: | Václav Skala - UNION Agency |
| Document type: | konferenční příspěvek conferenceObject |
| URI: | http://wscg.zcu.cz/wscg2007/Papers_2007/short/!WSCG2007_Short_Proceedings_Final-Part_2.zip http://hdl.handle.net/11025/11160 |
| ISBN: | 978-80-86943-02-2 |
| Keywords: | model osvětlení oblohy;verifikace |
| Keywords in different language: | sky luminance model;verification |
| Abstract: | The Preetham skylight model is currently one of the most widely used analytic models of skylight luminance in computer graphics. Despite its widespread use, very little work has been carried out to verify the results generated by the model, both in terms of the luminance patterns it generates, and in terms of numerical reliability and stability. In this paper, we show where the model exhibits problematic behaviour, and compare the computed luminance values with the CIE 2003 Standard General Sky, and our own measurements of real, cloudless skies. |
| Rights: | © Václav Skala - UNION Agency |
| Appears in Collections: | WSCG '2007: Short Communications Proceedings |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Zotti.pdf | Plný text | 1,72 MB | Adobe PDF | View/Open |
| Zotti_prezentace.pdf | Prezentace | 770,92 kB | Adobe PDF | View/Open |
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