| Autor: |
Guarnera D, Guarnera GC, Toscani M, Glencross M, Li B, Hardeberg JY, Gegenfurtner KR |
| Jazyk: |
angličtina |
| Zdroj: |
IEEE transactions on visualization and computer graphics [IEEE Trans Vis Comput Graph] 2020 Jun; Vol. 26 (6), pp. 2258-2272. Date of Electronic Publication: 2018 Dec 14. |
| DOI: |
10.1109/TVCG.2018.2886877 |
| Abstrakt: |
Material appearance of rendered objects depends on the underlying BRDF implementation used by rendering software packages. A lack of standards to exchange material parameters and data (between tools) means that artists in digital 3D prototyping and design, manually match the appearance of materials to a reference image. Since their effect on rendered output is often non-uniform and counter intuitive, selecting appropriate parameterisations for BRDF models is far from straightforward. We present a novel BRDF remapping technique, that automatically computes a mapping (BRDF Difference Probe) to match the appearance of a source material model to a target one. Through quantitative analysis, four user studies and psychometric scaling experiments, we validate our remapping framework and demonstrate that it yields a visually faithful remapping among analytical BRDFs. Most notably, our results show that even when the characteristics of the models are substantially different, such as in the case of a phenomenological model and a physically-based one, our remapped renderings are indistinguishable from the original source model. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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