Dasha-2019-accepted_TVCG-Li.pdf (38.26 MB)
Perceptually validated cross-renderer analytical BRDF parameter remapping
journal contribution
posted on 2019-01-29, 11:51 authored by Dar'ya Guarnera, Giuseppe C. Guarnera, Matteo Toscani, Mashhuda Glencross, Baihua LiBaihua Li, Jon Y. Hardeberg, Karl GegenfurtnerMaterial 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.
History
School
- Science
Department
- Computer Science
Published in
IEEE Transactions on Visualization and Computer GraphicsVolume
26Issue
6Pages
2258 - 2272Citation
GUARNERA, D. ... et al, 2018. Perceptually validated cross-renderer analytical BRDF parameter remapping. IEEE Transactions on Visualization and Computer Graphics, 26(6), pp. 2258 - 2272.Publisher
© IEEEVersion
- AM (Accepted Manuscript)
Acceptance date
2018-12-07Publication date
2018-12-14Copyright date
2020Notes
© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.ISSN
1077-2626eISSN
1941-0506Publisher version
Language
- en