"cloudyroo" <nomail@nomail> wrote:
> If I add a blue background to a scene with a grey floor and white sphere I end
> up with a pretty blue everything (like so: https://imgur.com/a/w9dF3Q1).
> Is there a way to stop this or another way to colour only the sky/background?
> Thanks!

You seem to be using radiosity; if so, try adding the keyword gray_threshold (or
grey_threshold) to that part of your scene and use a value greater than the
default of 0.
It will diminish color transference by that amount as a percentage, 0.5 being
50%.

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