Autodesk LIGHTSCAPE, Manual

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10
Daylight
How to add sun and
skylight to your model.
Lightscape provides various techniques for specifying the characteristics of
natural daylighting. Daylight is provided by two sources: the sun and the sky.
Summary
In this chapter, you learn about:
• Differentiating between sunlight and skylight
• Using daylight for interior and exterior models
•
Defining surfaces as windows or openings
• Illuminating your model with daylight
•
Enabling daylight for radiosity processing.
About Sunlight
The sun is modeled as a parallel light source, which
makes the incident direction of sunlight constant
over all surfaces in the scene. You can specify the
direction and intensity of the sun directly. Alterna-
tively, the direction and intensity of the sun can be
calculated based on geographical location, time, and
sky condition settings.
About Skylight
In the real world, daylight in an environment does
not just come from direct sunlight; it also comes
from light that is scattered through the atmosphere.
Lightscape offers greater realism and accuracy by
Room illuminated by sunlight only