[Radiance-general] Diffuse illuminance

[Christopher Rush]

How did you generate your sky definition? If it's from gensky you could just generate it using the -c, -i, -s, or -u options. The -c is the only one of these that is a representation of a somewhat realistic scene - completely overcast sky (inherently without direct sun). From the gensky manual page:

-s Sunny sky without sun. The sky distribution will correspond to a standard CIE clear day.
+s Sunny sky with sun. In addition to the sky distribution function, a source description of the sun is generated.
-c Cloudy sky. The sky distribution will correspond to a standard CIE overcast day.
-i Intermediate sky without sun. The sky will correspond to a standard CIE intermediate day.
+i Intermediate sky with sun. In addition to the sky distribution, a (somewhat subdued) sun is generated.
-u Uniform cloudy sky. The sky distribution will be completely uniform.

-Chris

From: TSANG Kai Kwong [mailto:kaiktsang4-c at my.cityu.edu.hk]
Sent: Friday, January 26, 2018 12:25 PM
To: radiance-general at radiance-online.org
Subject: [Radiance-general] Diffuse illuminance


Dear all,

If I want to calculate the diffuse illuminance resulted in at a point inside a room, do I just need to remove the "void light solar" and "solar source sun" from the sky.rad and run the simulation?

Best regards,
Dennis
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