On Thu, 11 Oct 2012 21:40:47 +0200, Christian Froeschlin <chr### [at] chrfrde>  
wrote:

> Jan Walzer wrote:
>
>> This Image took ~11h on 8Core Xeon W3550 with ~3GHz (AA0.3)
>
> Wow ... how long did it originally take with 3.1? ;)

I didn't render this with 3.1 - I just had nice ideas back then what one  
could do with media and complex patterns ...

... but I was aware, that the quality-settings one would need were costing  
more power I could afford back then ..


> Is the "bridge" a structure or the artefact you mention?

These structures are only some (very huge) objects I placed there to test  
if I could get some shadows  through the clouds ...

Only the cylinders, that are touching the ground are placed. The  
"Bridge-Thing" you're seeing is a shadow from sunlight, but they seem, to  
have not be sampled fine enough.

Having a second look, and knowing how the geometry of the scene is, I  
think its correct shadow of these huge piles, and my lower cloud-layer is  
simply to low and the whole scattering atmosphere is to small.
These sticks are going very wide out of the atmosphere and are throwing a  
simple, standard shadow onto the atmosphere ... What I wanted to produce  
is a scattering volumetric shadow inside the atmosphere ...

But the higher samplerate is also needed for the small fine turbulences in  
the clouds to show up - they get washed out very much on these settings ..
I hope, I'll have a new version ready after the weekend.

Greetings, Jan

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