hi,

"Kima" <nomail@nomail> wrote:
> When a surface has a high reflection value, distinguishable circles of lighting
> appear on the surface (see the linked image) ...
> for
>
> camera {location <0,0,-3> look_at <0,0,0> angle 45  }
> light_source {<0,1,-3>  color rgb<1,1,1>  }
>
> plane{<0,0,1>,0 pigment{ color rgb<0.2,0.2,0.2>} finish{reflection 1 } }
>
> How can we fix this to have smooth and uniform lighting on the surface?

running the above with "+q9 +am2 +a0.1 +ag1 -j"  :-), the surface lighting does
look already fairly uniform.  you could add "roughness .01" to the 'finish{}'.
(looks ok here, the '.01' may need tweaking depending on actual surface, etc)


regards, jr.

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