August 31 – September 2, 2026
University of Washington | College of Built Environments |Department of Architecture
Hosted by: Mehlika Inanici, | inanici@uw.edu with support from UW College of Built Environments and Department of Architecture
Location: Gould Hall (GLD), 114, Seattle, WA
Program:
Monday, August 31, Radiance Workshop
| 9:00 | Arrival and Coffee | |
| 9:20 | Welcome | Mehlika Inanici |
| 9:30 | What is new with Radiance? | Greg Ward and Taoning Wang |
| 10:05 | Reference models of an office space and a factory hall for hyperspectral Radiance simulations | David Geisler-Moroder, Greg Ward, Taoning Wang |
| 10:40 | Coffee Break | |
| 11:10 | Optimal Parameters for Photon Flow in VR Spaces: A Case Study in a Real-World Architectural Space | Asuka Momiyama, Kosei Moriya, Dong Hyun Kim, Roland Schregle, Takumi Fujiwara, Tsukada Naoki and Nozomu Yoshizawa |
| 11:45 | Two Applications of Lighting Measurement + Radiance Simulations | Alstan Jakubiec, Fion Yang Ouyang, Nazanin Ganjehzadeh, and Cora Xintian Liu |
| 12:20 | Lunch | |
| 14:00 | Radiance Workflow for Human-Centered Evaluation of Sun-Tracking Specular Daylighting Systems | Pegah Mathur |
| 14:35 | A Data-Driven Workflow for Melanopic Daylight Simulation in Honeybee-Radiance | Neda Ghaeili Ardabili and Julian Wang |
| 15:10 | Coffee Break | |
| 15:45 | An HDR Image-Based Method for Evaluating Window View Clarity Performance | Xuran Guo, Zhen Tian, David Geisler-Moroder |
| 16:20 | Spectral calibration of HDR Photography | Mehlika Inanici and Martine Knoop |
| 19:00 | Dinner at Serious Pie Downtown (2001 4th Avenue, Seattle, WA 98121) |
Tuesday, September 1, Radiance Workshop
| 9:00 | Arrival and Coffee | |
| 9:15 | An Enhanced Imageless DGP Calculation Method for Complex Fenestration Systems | Yongqin Zhao |
| 9:50 | Glare Prediction for Photovoltaic Panels with Different Reflectance Characteristics: BRDF Estimation and Modeling Using a Simplified Method | Yuto Hama, Okamoto Toshihide, Ohki Chikako, Dong Hyun Kim, Nozomu Yoshizawa |
| 10:25 | Coffee Break | |
| 10:55 | Horticulture Lighting Simulator powered by Radiance | Austin Rouse |
| 11:30 | Simulation for Food: Evaluating Urban Greenhouses | Shafiul Islam and Mehlika Inanici |
| 12:05 | Group Photograph | |
| 12:15 | Lunch | |
| 13:45 | Daylight-Driven Decision Making: Direct Sun Analysis Toolkit Across Design Phases | Lydia Zhong and Michaella Park |
| 14:20 | What’s Trending in Daylighting? | Seif Eses |
| 14:55 | Coffee Break | |
| 15:25 | Case studies on Spectral lighting in healthcare design practice | Marty Brennan |
| 16:00 | New Developments at Solemma in Handling Common Radiance Bottlenecks | Alstan Jakubiec |
| 16:35 | Wrap up for the workshop |
Wednesday, September 2, Tutorial Day
| 8:45 | Arrival and Coffee | |
| 9:00 | Scattering Light: Generating BSDFs and using them in Radiance | David Geisler-Moroder |
| 10:30 | Coffee Break | |
| 11:00 | Health Recipes in Radiance: Connecting Lighting and Biology | Mehlika Inanici |
| 12:30 | Lunch | |
| 13:45 | Lighting the Dark Corners of Radiance | Greg Ward |
| 15:15 | Coffee Break | |
| 15:45 | PyRadiance | Taoning Wang |
| 17:15 | Goodbye until next time |
We thank all participants for their contributions!
We were delighted to host the annual Radiance workshop in Seattle, Washington, USA.
The Radiance Workshop is the annual meeting of the Radiance software community, alternating between Europe and North America. For past workshops, please visit: Workshops — Radsite.
