Rendu temps réel de fonction de textures bidirectionnelles
| Autor: | Mathias Paulin, Vincent Forest |
|---|---|
| Přispěvatelé: | Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Visual Objects from Reality To Expression (IRIT-VORTEX), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1) |
| Rok vydání: | 2007 |
| Předmět: |
Computer science
Graphics hardware Function (mathematics) Residual [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR] Computer graphics Distribution function Computer graphics (images) Bidirectional reflectance distribution function Bidirectional texture function Graphics Algorithm ComputingMilieux_MISCELLANEOUS ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | Revue des Sciences et Technologies de l'Information-Série TSI : Technique et Science Informatiques Revue des Sciences et Technologies de l'Information-Série TSI : Technique et Science Informatiques, Lavoisier, 2007, 26 (8), pp.975-997 |
| ISSN: | 0752-4072 2116-5920 |
| DOI: | 10.3166/tsi.26.975-997 |
| Popis: | Despite the horsepower and the flexibility of current graphics hardware, advanced render engines use the fast Blinn-Phong BRDF model for simulating material appearance taking off limitation for physically plausible material simulation. We propose an alternative to the Blinn-Phong model based on Bidirectional Texture Functions, which we compress with McAllister's approach to obtain a Spatial Bidirectional Reflectance Distribution Function (SBRDF). Then, we upgrade the SBRDF with a residual function that we deduce from the reconstruction error of the SBRDF model. We analyze the impact of the residual function on the quality of the approximation. Finally, we propose a rendering algorithm for our method and analyse its performances. |
| Databáze: | OpenAIRE |
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