[Radiance-general] Problem leak light

[giulio antonutto]

sometimes ray of light get out from the edges of two adjacent polygons, and worst re-spawn  from an edge creating a splotch.
If so you need to setup the -aa and -ar values in order to reduce interpolation errors. And also ensure that there are no edges without thickness.
the other thing is the -av parameter. which you could try to set [0 0 0].
another thing is also to consider the values.   that maybe more than 0, but perhaps very small (i.e. 10^-7 or so)
goodluck
g

 
On 7 Jun 2012, at 14:56, Julien Boutillier wrote:

> Hi, 
> 
> I develop a software to calculate the daylight factor in a room using Radiance.
> 
> I noticed that even a room with a window with '0' transmission, Radiance gives me a DF different from '0' if walls have a reflection different from 0.
> 
> I don't understand where this light come from? I thought about leak light, but i tried to change the construction of my view (add the thickness of walls, make walls crossing on the corners), but nothing change this result.
> 
> Did somebody have already notice this? Do you know this problem? 
> 
> Thanks
> 
> Julien
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