Information
- Publication Type: Journal Paper with Conference Talk
- Workgroup(s)/Project(s):
- Date: May 2020
- Journal: Proceedings of the ACM on Computer Graphics and Interactive Techniques
- Volume: 3
- Open Access: yes
- Number: 1
- Location: online
- Lecturer: Christian Luksch
- ISSN: 2577-6193
- Event: ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games
- DOI: 10.1145/3384537
- Call for Papers: Call for Paper
- Conference date: 14. September 2020 – 18. September 2020
- Pages: 4.1 – 4.18
- Keywords: area lights, photometric lights, real-time rendering
Abstract
We present a real-time rendering technique for photometric polygonal lights. Our method uses a numerical integration technique based on a triangulation to calculate noise-free diffuse shading. We include a dynamic point in the triangulation that provides a continuous near-field illumination resembling the shape of the light emitter and its characteristics. We evaluate the accuracy of our approach with a diverse selection of photometric measurement data sets in a comprehensive benchmark framework. Furthermore, we provide an extension for specular reflection on surfaces with arbitrary roughness that facilitates the use of existing real-time shading techniques. Our technique is easy to integrate into real-time rendering systems and extends the range of possible applications with photometric area lights.Additional Files and Images
Weblinks
- https://doi.org/10.1145/3384537
- Video
Video - Entry in reposiTUm (TU Wien Publication Database)
- DOI: 10.1145/3384537
BibTeX
@article{luksch_2020, title = "Real-Time Approximation of Photometric Polygonal Lights", author = "Christian Luksch and Lukas Prost and Michael Wimmer", year = "2020", abstract = "We present a real-time rendering technique for photometric polygonal lights. Our method uses a numerical integration technique based on a triangulation to calculate noise-free diffuse shading. We include a dynamic point in the triangulation that provides a continuous near-field illumination resembling the shape of the light emitter and its characteristics. We evaluate the accuracy of our approach with a diverse selection of photometric measurement data sets in a comprehensive benchmark framework. Furthermore, we provide an extension for specular reflection on surfaces with arbitrary roughness that facilitates the use of existing real-time shading techniques. Our technique is easy to integrate into real-time rendering systems and extends the range of possible applications with photometric area lights.", month = may, journal = "Proceedings of the ACM on Computer Graphics and Interactive Techniques", volume = "3", number = "1", issn = "2577-6193", doi = "10.1145/3384537", pages = "4.1--4.18", keywords = "area lights, photometric lights, real-time rendering", URL = "https://www.cg.tuwien.ac.at/research/publications/2020/luksch_2020/", }