Am 25.01.2015 um 22:50 schrieb Mr:

> The best I could do was this:
> http://www.pasteall.org/pic/show.php?id=82820
>
> If you compare with Blender render below, especially look at the clouds
> reflexion in the sphere, I think Scale and offset are pretty correct, but the
> difference in which clouds are visible through the lateral opening shows the
> mapping is still incorrect.
> http://wiki.blender.org/uploads/1/12/RenderBranch.jpg
[...]
> I had to use map_type 0 but I am guessing what would be needed for more correct
> results would be cube mapping? (map_type = 3 ?) which doesn't exist yet does it?
> maybe in UberPOV?  otherwise, which solution would you advise? anything else
> than giving up sky_sphere for a dumb (how big?) box?

Well, what format does Blender use for the environment mapping anyway?

If you could post the environment map image used, that would certainly 
help identifying the mapping.

There are various formats in use, but I'd try map_type 1 first (AFAIK 
it's the most common one), and see if rotating by 90, 180 or 270 degrees 
around the vertical and/or mirroring (scale <-1,1,1>) does the trick.

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