Jeremy M. Praay <sla### [at] hotmailcom> wrote:
> I'm assuming that this is because radiosity uses some sort of random numbers 
> in the generation of the data.

  Nope. It's because the radiosity algorithm reuses the data calculated
so far. If you start from the middle of the image, there's no data from
the first half to be reused. This usually causes the illumination to
differ visibly.

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -