[Radiance-general] ecotect export - missing surfaces

[Erwin Zierler]

Hello Nick,

I downloaded your files and from looking at your geometry briefly I would say that Ecotect i.e. you created some very small polygons (0.0001 meters on one side) that Radiance considers zero-area polygons. When I run oconv or getbbox on your scene file I get 28 warnings like this one:

getbbox: warning - zero area for polygon "zone02.rad00000"  

Looking at polygon zone02.rad00000 I find a valid polygon description but I guess Radiance has some limitation with regards to geometry. Are you sure you are modelling in the correct scale?

Regards,
 Erwin

-------- Original Message --------
Subject: [Radiance-general] ecotect export - missing surfaces (18-Feb-2008 16:31)
From:    Nick Doylend <radiance at ndoylend.fastmail.fm>
To:      radiance-general at radiance-online.org

> 
> I'm having some problems exporting geometry from Ecotect - I'm trying to
> model some external shades.  I've tried to build them up as 3D surfaces
> but when I export and render only the two side pieces are visible, the
> small top, bottom, back and front faces do not appear.  What am I doing
> wrong?
> 
> http://ndoylend.fastmail.fm/temp/test_c.png
> 
> The rest of the Radiance/Ecotect files are in the same directory if
> anyone wants to take a look.
> 
> Thanks for your help,
> 
> Nick
> 
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