Deep Dynamic Cloud Lighting

Pinar Satilmis
Birmingham City University,
UK
Thomas Bashford-Rogers
University of Warwick,
UK

Paper

Abstract

Sky illumination is a core source of lighting in rendering, and a substantial amount of work has been developed to simulate lighting from clear skies. However, in reality, clouds substantially alter the appearance of the sky and subsequently change the scene illumination. While there have been recent advances in developing sky models which include clouds, these all neglect cloud movement which is a crucial component of cloudy sky appearance. In any sort of video or interactive environment, it can be expected that clouds will move, sometimes quite substantially in a short period of time. Our work proposes a solution to this which enables whole-sky dynamic cloud synthesis for the first time. We achieve this by proposing a multi-timescale sky appearance model which learns to predict the sky illumination over various timescales, and can be used to add dynamism to previous static, cloudy sky lighting approaches.

Method Overview

Overview

Video

BibTeX

	@article{Satilmis2023ddcl,
           Author = {Pinar Satilmis and Thomas Bashford-Rogers},
           Title = {Deep Dynamic Cloud Lighting},
           journal   = {arXiv:2304.09317},
           year      = {2023},
           }
        
      

Acknowledgements

We gratefully acknowledge the support of NVIDIA Corporation with the donation of the RTX A6000 used for this research. We also would like to thank the following for the scenes and models used in this work: MrChimp2313, Alim Zhilov, Noker, timothyjamesbusch, alplaleli, and Helena-Merlot.