[Radiance-general] instance problem?

[Lars O. Grobe]

Hi!

> I'm only guessing, but is it possible that you have two surfaces 
> coincident in that plane?

No, I don't think so. I checked everything this morning. The silly and 
interesting about this is that I get the wall behind the affected 
surfaces as some kind of mask. I attach one more rvu-screenshot to 
illustrate this. As you can see, the surface is black, if there is a 
wall behind, and bright (colorpict-modifier visible) if the window 
opening (or no geometry at all) is behind. So it seams to be some kind 
of geometry mess that I created here. Also, this behaviour changes with 
oconv -r settings.

I use instances heavily in my scene. I have been warned not to do so 
(and of course, most of my instances don't fit into a cube, but are all 
kinds of random geometries). On the other hand, the model is too huge 
to be rendered without the use of instances, and I also cannot divide 
the model into some cube-like parts, as there is a logical structure of 
building elements in this building which defines how the model is 
built. So maybe I just corrupted the scene by using too many 
(overlapping) instances' octrees? This is the only explanaition I could 
imagine at the moment.

TIA+CU Lars.

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