As I said before, I really like the idea of making it all look like it 
was rendered in one pass, e.g. no visible breaks in background etc. 
Nevertheless, I see that artistic freedom is important, too.

I think using some tricks like light_groups, spot_lights or point_lights 
with fade_distance, it should be easy to create a piece of table, which 
blends nicely with other contributions but allows custom lighting.

After all it is IMHO not the idea of such a project that everybody 
provides a full scene, but something small, which can nevertheless be 
very interesting. Therefore I don't think you'll need a change in 
background. You should put something interesting *on* the table, not 
behind it :)

Using a seperate table for each element would be a possibility, but it 
destroys much of the basic idea of the whole project (the one idea makes 
it so interesting). If you vary the camera settings, too, you get 
nothing more than some images which share an object...

Florian
-- 
camera{look_at-y*10location<8,-3,-8>*10}#local a=0;#while(a<999)sphere{
#local _=.01*a-4.99;#local p=a*.01-5;#local c=.01*a-4.995;<sin(p*pi)*5p
*10pow(p,5)*.01>sin(c*c*c*.1)+1pigment{rgb 3}}#local a=a+1;#end
/******** http://www.torfbold.com ******** http://www.imp.org ********/

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