This image was rendered with radiosity in two passes. There's an area light
behind the camera, well off to the right and up (to cast some soft
shadows). The light sources for radiosity are the sky, some yellow panels
below the floor (they're responsible for the yellow shine on the underside
of the exhibits) and a blue panel in the ceiling (you can see a bit of that
panel).

Antialiasing used was method 1 with threshold 0.0 (anything more and those
white lines on sharp features become more obvious and abundant).

What would be the best way to improve the lighting now? It's quite flat, but
I want to keep a "daylight" look to it. Getting rid of those radiosity
artefacts in the corners might be nice, but not if it involves
substantially increasing render time (this already took about 15 hours, due
mainly to radiosity). Radiosity settings used were:

First pass:
   pretrace_start .08
   pretrace_end .001
   count 600
   error_bound { .05 adaptive 1.5, 20 }
   adaptive 2
   recursion_limit 2
   minimum_reuse 0.01
   save_file "tvo.rad"

Second pass:
   pretrace_start 1
   pretrace_end 1
   always_sample off
   error_bound { .25 adaptive 1.5, 20 }
   recursion_limit 2
   minimum_reuse 0.01
   brightness 0.75
   load_file "tvo.rad"

I think these are based on some settings posted a while back in these
groups. The geometry is mesh-based. There is a larger version of the image
available here:

http://www.zubenelgenubi.34sp.com/temp/tvo_lrg.jpg

(1280x960, about 130kB)

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