"Mike Miller" <mil### [at] gmailcom> wrote:

> I found the problem. It turns out that if add even a small amount of turbulence
> (.3 or more) to the fog definition - it tints the alpha portion of the image
> map. I set the turbulence to zero and it cleared it up. I'm not sure why, but it
> worked.

I would guess that it's probably not so much that it "tints" the transparent
portion as it patterns it in a way that the applied turbulence causes it to
mis-match the more distant parts of the scene.

Glad you got it to work out - things like that can drive you crazy.

- BW

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