Thorsten Froehlich <tho### [at] trfde> wrote:
> The fix was that alpha is treated differently depending on the version 
> directive as the 3.6 change was unpopular...

  Unpopular? I think you are confusing this with how antialiasing is
calculated.

  I'm not talking about antialiasing. I'm talking about the +UA command-line
option and the alpha channel in the resulting image.

  POV-Ray 3.5 did it wrongly: The background color was mixed with the
semi-transparent pixels. This was fixed, correctly, in 3.6. In 3.7beta
the same problem resurfaced once again.

  The +UA option becomes almost unusable if the background color is mixed
with the semi-transparent pixels.

-- 
                                                          - Warp

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