[esp-r] Re: obstruction blocks (shading)

[Geissler Achim]

Dear Sébastien

no, obstruction blocks do not reflect radiation, sadly (they are "perfectly black" for all practical purposes). They can, however, transmit radiation (you can enter a transmissivity). The material you define for an obstruction is used only for visual output via Radiance, though.

There is a toggle in the setting up of obstructions which allows for "beam only" or "diffuse shading also" calculations. I would expect that when "diffuse shading also" is chosen, ground diffuse reflectance is taken into account. But I am not sure.

Best
Achim




Von: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-bounces at lists.strath.ac.uk] Im Auftrag von Sébastien Brideau
Gesendet: Montag, 8. April 2013 18:03
An: esp-r at lists.strath.ac.uk
Betreff: [esp-r] obstruction blocks (shading)


Hi all,

I have two quick questions:


1.       It looks like shading blocks do not reflect any radiation.  Is that correct?  (I can't find a place to input optical properties, hence my assumption)

2.       I get how shading blocks are projected on external surfaces for beam radiation.  How are the sky-diffuse and ground-diffuse components treated?


Thanks for any help.

Sébastien
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