[Radiance-general] Use of Lighting information on EPW file

[Lars O. Grobe]

Hi German!
> Is it too bad to consider the direct illuminance as it is, and assume 
> the diffuse illuminance as isotropic (i.e. assume the diffuse daylight 
> entering through my window is the same as the horizontal) ???
Yes, that would be very bad. There is no such thing as an uniform sky in 
nature.

Maybe John's chapter on sky model is interesting for you: 
http://www.iesd.dmu.ac.uk/~jm/doku.php?id=resources:thesis

Cheers, Lars.
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