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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Dear Sébastien<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">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.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">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.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Achim<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:DE-CH">Von:</span></b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:DE-CH"> esp-r-bounces@lists.strath.ac.uk
[mailto:esp-r-bounces@lists.strath.ac.uk] <b>Im Auftrag von </b>Sébastien Brideau<br>
<b>Gesendet:</b> Montag, 8. April 2013 18:03<br>
<b>An:</b> esp-r@lists.strath.ac.uk<br>
<b>Betreff:</b> [esp-r] obstruction blocks (shading)<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="mso-fareast-language:EN-CA">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="mso-fareast-language:EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="mso-fareast-language:EN-CA">I have two quick questions:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="mso-fareast-language:EN-CA"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-CA"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-CA">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)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span lang="EN-CA"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-CA">I get how shading blocks are projected on external surfaces for beam radiation. How are the sky-diffuse and ground-diffuse components treated?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">Thanks for any help.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA">Sébastien<o:p></o:p></span></p>
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