"Ron" <hudson.ra [at] gmailcom> wrote in message 
news:web.47c336ea66dc229859313d960@news.povray.org...
> Simple Scene - 5 colored reflective balls, light source, black sky,
> reflective plane, But there is an un-wanted arc in the lower left corner.
> I have tried moving the light source far away (900x900x900)
>

Hi Ron,

You can reduce the 'specular' of the plane to about 0.4 and the light 
variation becomes less apparent in the bottom left.

You also have banding on the reflections of the spheres in the plane that 
you can reduce by specifying  'metallic 0.7' rather than just 'metallic' 
within the 'reflection' clause on the plane.

Regards,
Chris B.

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