"Elmar Krieger" <elm### [at] cmbirunl> schreef in bericht
news:web.42e72a35808d84e1e78d3d640@news.povray.org...
> Hi!
>
> Two things I'm chewing on:
>
> 1) Create fog that doesn't start immediately at the camera, but only at a
> certain distance from it, so that some close objects are not fogged at
all.
> Comparable to the OpenGL GL_FOG_MODE GL_LINEAR feature that allows to
> specify where the fog starts and where it reaches the maximum density.
>

One very simple solution is using a completely transparant, not hollow,
vertical plane between the camera and the background. The orientation of the
plane's normal determines where the fog will be invisible, on the camera
side or the background side. I used this trick in the past and it works to
complete satisfaction.

Thomas

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