SkyGAN: Towards Realistic Cloud Imagery for Image Based Lighting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10447099" target="_blank" >RIV/00216208:11320/22:10447099 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.2312/sr.20221151" target="_blank" >https://doi.org/10.2312/sr.20221151</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2312/sr.20221151" target="_blank" >10.2312/sr.20221151</a>
Alternative languages
Result language
angličtina
Original language name
SkyGAN: Towards Realistic Cloud Imagery for Image Based Lighting
Original language description
Achieving photorealism when rendering virtual scenes in movies or architecture visualizations often depends on providing a realistic illumination and background. Typically, spherical environment maps serve both as a natural light source from the Sun and the sky, and as a background with clouds and a horizon. In practice, the input is either a static high-resolution HDR photograph manually captured on location in real conditions, or an analytical clear sky model that is dynamic, but cannot model clouds. Our approach bridges these two limited paradigms: a user can control the sun position and cloud coverage ratio, and generate a realistically looking environment map for these conditions. It is a hybrid data-driven analytical model based on a modified state-of-the-art GAN architecture, which is trained on matching pairs of physically-accurate clear sky radiance and HDR fisheye photographs of clouds. We demonstrate our results on renders of outdoor scenes under varying time, date, and cloud covers.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Rendering 2022 - Symposium Track
ISBN
978-3-03868-187-8
ISSN
1727-3463
e-ISSN
—
Number of pages
10
Pages from-to
13-22
Publisher name
The Eurographics Association
Place of publication
Goslar, Germany
Event location
Prague
Event date
Jul 4, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—