Thank you all very much!<br><br>Andrew mentioned<span style="color: rgb(102, 51, 102);"> "</span><font size="4"><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;"><span style="color: rgb(102, 51, 102);">Transmisivity is the amount of light NOT absorbed in one pass through the glazing. "<br>
<font style="color: rgb(0, 0, 0);" color="#000000">Does it mean that the </font></span></span></font></font><font style="color: rgb(0, 0, 0);" size="4"><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">Transmisivity is the amount of light transmitted and reflected by a meterial?<br>
<br><br>From the web "<a href="http://www.schorsch.com/rayfront/manual/dielectricdef.html">http://www.schorsch.com/rayfront/manual/dielectricdef.html</a>" , <span style="color: rgb(102, 51, 102);"> " </span></span></font></font><em style="color: rgb(102, 51, 102);">Transmittance</em><span style="color: rgb(102, 51, 102);"> is the total light
transmitted through the pane including multiple reflections"<br><br><br><span style="color: rgb(0, 0, 0);">So the difference between </span></span><font style="color: rgb(0, 0, 0);" size="4"><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">Transmisivity and Transmittance is the light reflected?<br>
<br><br>According to </span></font></font>Andrew's email, for glass with <font size="4"><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">VLT of 0.325 has a transmisivity of 0.354. The glass is defined as <br>
<br></span></font></font><font size="4"><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">void glass glazing.325<br>
0<br>
0<br>
3 0.354 0.354 0.354<br><br>For trans with VLT 0.325 and no diffse transmission. Can we difine it as the following?<br><br></span></font></font>void trans window.0.325<br><br>7 0.325 0.325 0.325 0 0 1 1<br><br>For glass, the light transmitted would be specular transmitted, is it right? If right, what is the differrence between above meteirals definition - <font size="4"><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;"> glass glazing.325 and </span></font></font>trans window.0.325?<br>
<br><font size="4"><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;"><span style="color: rgb(102, 51, 102);"></span></span></font></font>