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Daylighting Simulation
Objectives:
- To understand basic daylighting techniques and methods for simulating daylighting
I. Check-in on student progress
II. Lighting Simulation Definitions
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Term
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Definition
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| Luminance | Brightness reflected from a surface |
| Illuminance | Luminous energy hitting a surface |
| Sparkle | Specular highlights |
| Glare | High contrast that prevents reading of the visual environment |
| Local Illumination | Direct illumination from light sources + material properties (no bounced light) |
| Global Illumination | Accounts for indirect reflected light |
| Ray Tracing | Considers light as rays. Looks at pixels visible to viewer and traces rays back to objects and then back to reflected sources. View dependent |
| Radiosity | Considers light as heat energy radiated from sources. Progressively refines a solution that considers color bleeding. View independent. |
III. Daylighting Techniques
Lightolier on Lessons in Lighting
Heshong-Mehone Group on Daylighting in Schools (see Guidelines)
Eindhoven University's FAGO Group on Daylight Design with Radiance Renderings
IV. Examples of Daylighting Simulation
Courses or how-to
- Carolyn Raines' photo-realistic simulations
- Richard Mistrack's Architectural Lighting class at Penn State
- James Love's classes at Calgary with Lightscape Tutorials and FormZ WCT course link
Representing Daylighting (Cheng & Lee)
Andrzej Zarzicki's Renderings of the Piazza SS. Annunziata in Florence and Aalto's Altstetten Parish Church
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