| dc.contributor.author | Bagher, Mohammad Mahdi | en_US |
| dc.contributor.author | Soler, Cyril | en_US |
| dc.contributor.author | Holzschuch, Nicolas | en_US |
| dc.contributor.editor | Fredo Durand and Diego Gutierrez | en_US |
| dc.date.accessioned | 2015-02-28T07:36:06Z | |
| dc.date.available | 2015-02-28T07:36:06Z | |
| dc.date.issued | 2012 | en_US |
| dc.identifier.issn | 1467-8659 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1111/j.1467-8659.2012.03147.x | en_US |
| dc.description.abstract | Material models are essential to the production of photo-realistic images. Measured BRDFs provide accurate representation with complex visual appearance, but have larger storage cost. Analytical BRDFs such as Cook- Torrance provide a compact representation but fail to represent the effects we observe with measured appearance. Accurately fitting an analytical BRDF to measured data remains a challenging problem. In this paper we introduce the SGD micro-facet distribution for Cook-Torrance BRDF. This distribution accurately models the behavior of most materials. As a consequence, we accurately represent all measured BRDFs using a single lobe. Our fitting procedure is stable and robust, and does not require manual tweaking of the parameters. | en_US |
| dc.publisher | The Eurographics Association and Blackwell Publishing Ltd. | en_US |
| dc.subject | I.3.7 [Computer Graphics] | en_US |
| dc.subject | Three Dimensional Graphics and Realism | en_US |
| dc.subject | Color | en_US |
| dc.subject | shading | en_US |
| dc.subject | shadowing | en_US |
| dc.subject | and texture | en_US |
| dc.title | Accurate Fitting of Measured Reflectances Using a Shifted Gamma Micro-facet Distribution | en_US |
| dc.description.seriesinformation | Computer Graphics Forum | en_US |
