[Radiance-general] Trans material

[Lars O. Grobe]

Hi Martin!

First, it would help to know whether you experience this with luminance maps, too.

For illluminance/irradiance any transmissive surface is tricky, as the observer may expect different results.

What -ab setting do you use? -ab <3 would only let the specular transmission trough your multilayer diffuser, if I am not completely wrong... And that should make it appear like a dark (+ reflection) clear glass? I never tried this kind of stacking.

Cheers, Lars.

> Hi all,
> 
> Hope I am getting how this works right...
> 
> The question regarding the Trans material previously posted by Per was basically posted on my behalf and therefore I will take the liberty to just build upon that thread.
> 
> With respect to the difference between generating illuminance and luminance pictures you of course have a very valid point. However, I am simulating a model with three layers of Trans material and I would expect that your view from inside and outwards even when considering illuminance levels would be diffused (being filtered through three layers) ? Maybe I am missing something?
> What happens in between layers of Trans material (inter-reflections etc.) and what are the internal surface properties?
> 
> Thank you for all you help so far!
> 
> -- 
> Best regards,
> 
> Martin
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