In article <40f578b0$1@news.povray.org> , "Hughes, B." 
<bob### [at] charternet> wrote:

> In the image you'll see a glassy blob object with a gray background plane. I
> tried sky_sphere and background {}, with similar results, if the AA
> threshold is 0.1 or lower. AA values typed onto the two examples. Once the
> AA value is high enough the blocky artifact will disappear. Apparently gamma
> related somehow.

If you post an image to show artifacts, you should really not use a lossy
image format.  Please post this again as PNG, with JPEG it is impossible to
tell what you are talking about and what are just JPEG artifacts.

If possible, please mark the problem in the image as well.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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