Atmosphere/Fog in POV

[Jan Walter Schliep]

Hi!
I am new in this group and a absolute "POV"-beginner, so hopefully my
question is not to dumb. If I use the option atmosphere the picture gets
darker (quite o.k. so far), but If I want to add a lightsource (with
atmos enabled), I only get white pictures. If somebody could tell me
what factors will result in (more or less ) realistic results, I`d be
very ;-)).
Ciao,
Walli
P.S. I am using DigiArt3D as modeller

[Alex Magidow]

Well, first of all, I would note that if you are using POV-Ray 3.01 or
something of the like, and that is why you have atmosphere. Now, if you ask
any atmosphere questiosn here, most people will tell you to get POV-Ray 3.1.
DON'T!!!!! The feature used to replace atmosphere is REALLY slow...I mean
REALLY, REALLY, REALLY slow. What takes 2-3 minutes with 3.0 takes 20 with
3.1.

Now, you question. Atmosphere will turn whatever color you specify when a
light source interacts with it. So, if you use a pointlight, the atmosphere
will be lit up everywhere, which is why you get a white screen. Try using a
spotlight, or a pointlight with a falloff radius. If you want a light that
just lights up the scene, regardless of atmosphere, then choose the "Does
not interact with atmosphere" option.

Jan Walter Schliep wrote:

--
Given a lever long enough, one can move the world with little force
MJ Engh

[Stephan Ahonen]

>Well, first of all, I would note that if you are using POV-Ray 3.01 or
>something of the like, and that is why you have atmosphere. Now, if you ask
>any atmosphere questiosn here, most people will tell you to get POV-Ray
3.1.
>DON'T!!!!! The feature used to replace atmosphere is REALLY slow...I mean
>REALLY, REALLY, REALLY slow. What takes 2-3 minutes with 3.0 takes 20 with
>3.1.
>
>Now, you question. Atmosphere will turn whatever color you specify when a
>light source interacts with it. So, if you use a pointlight, the atmosphere
>will be lit up everywhere, which is why you get a white screen. Try using a
>spotlight, or a pointlight with a falloff radius. If you want a light that
>just lights up the scene, regardless of atmosphere, then choose the "Does
>not interact with atmosphere" option.

As well as using falloff, reduce the density of the atmosphere.

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