[Radiance-general] material trans and glass?

[Victor Li]

Sorry i made a mistake. I just want to compare the glass 3     0.325 0.325
0.325  and trans 7     0.325 0.325 0.325 0 0 1 1 (not 0.3).

In trans, the transmissive specularity is 1 which means the total daylight
transmitted through the material will be specularly transmitted, like glass.
So i defined the transmissive specularity is 1.

Actually i had a look the webpage and i define the trans followed the
instruction in the page.

Note also that the Radiance glass material uses "transmissivity" not
transmittance,
so does trans use "transmittance" in the first three paremeters? What is the
difference between transmittance and transmissivity?
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