Talks and Poster Presentations (with Proceedings-Entry):
A. Wilkie, R.F. Tobler, C. Ulbricht, G. Zotti, W. Purgathofer:
"An Analytical Model for Skylight Polarisation";
Talk: Eurographics Symposium on Rendering 2004,
- 2004-06-23; in: "Proceedings of the Eurographics Symposium on Rendering",
A. Keller, H Jensen (ed.);
Under certain circumstances the polarisation state of the illumination can have a significant influence on the appearance of scenes; outdoor scenes with specular surfaces -- such as water bodies or windows -- under clear, blue skies are good examples of such environments. In cases like that it can be essential to use a polarising renderer if a true prediction of nature is intended, but so far no polarising skylight models have been presented. This paper presents a plausible analytical model for the polarisation of the light emitted from a clear sky. Our approach is based on a suitable combination of several components with well-known characteristics, and yields acceptable results in considerably less time than an exhaustive simulation of the underlying atmospheric scattering phenomena would require.
Online library catalogue of the TU Vienna:
Electronic version of the publication:
Project Head Alexander Wilkie:
Physikalisch plausible Darstellung des Himmelsgewölbes
Created from the Publication Database of the Vienna University of Technology.