Journalartikel

Jahr der Veröffentlichung: 2020

Seiten: 2258-2272

Zeitschrift: IEEE Transactions on Visualization and Computer Graphics

Bandnummer: 26

Heftnummer: 6

ISSN: 1077-2626

eISSN: 1941-0506

Open Access Status: Green

DOI Link: https://doi.org/10.1109/TVCG.2018.2886877

URL: https://doi.ieeecomputersociety.org/10.1109/TVCG.2018.2886877

Verlag: Institute of Electrical and Electronics Engineers

Abstract: 
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.

Harvard-Zitierstil: Guarnera, D., Guarnera, G., Toscani, M., Glencross, M., Li, B., Hardeberg, J., et al. (2020) Perceptually Validated Cross-Renderer Analytical BRDF Parameter Remapping, IEEE Transactions on Visualization and Computer Graphics, 26(6), pp. 2258-2272. https://doi.org/10.1109/TVCG.2018.2886877

APA-Zitierstil: Guarnera, D., Guarnera, G., Toscani, M., Glencross, M., Li, B., Hardeberg, J., & Gegenfurtner, K. (2020). Perceptually Validated Cross-Renderer Analytical BRDF Parameter Remapping. IEEE Transactions on Visualization and Computer Graphics. 26(6), 2258-2272. https://doi.org/10.1109/TVCG.2018.2886877