Am 02.12.2014 13:40, schrieb Thomas de Groot:
> This is what I have got (see image).
>
> Left render with Uberpov; Right render with Pov 3.7.
>
> The only code difference is the emission value: In Uberpov it is 2; in
> POV-Ray it is 0.2. Higher values will white out the render. The
> difference remains and I think Clipka knows why :-)

At the moment I just have a hunch: There were some bogosities in 
POV-Ray's media computations which would cause the results to be 
systematically off (as opposed to just being imprecise) when using a 
very low minimum number of samples. I fixed these, so that low minimum 
number of samples would yield results closer to high minimum number of 
samples.

The fix quite certainly has made it into UberPov, but may not have been 
released for official POV-Ray yet due to longer release cycles there.

I can't currently verify that this is the reason for the differences you 
see in this case, for the lack of round tuits; I hope to get one or two 
of those in the second half of December.

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