From: Robert Praxmarer (cubic++at++fl.aec.at)
Date: 08/25/2001 02:32:50
Hi,
we are currently porting to linux, and I wonder if anyone knows if there are
adequat ports or look-a-likes for the ipaste tool and the libmovie for
linux.
pfThanx cubic.
-----Original Message-----
From: Radomir Mech
To: Andreas.Ekstrand++at++saab.se
Cc: info-performer
Sent: 8/21/01 6:52 PM
Subject: Re: Non-symmetric fog?
Andreas Ekstrand wrote:
>
> Hi again!
>
> Do you mean that layered fog can be done with pfVolFog OR with
> pfEarthSky? In that case, is the layered fog in pfEarthSky only
> available in 2.4?
>
Yes, layered fog can be done with both, but pfVolFog version has more
controls.
The fog in pfEarthSky is available also in earlier versions, pfVolFog is
introduced in 2.4.
> Isn't there any way to get this behaviour without multipass rendering?
> Actually I don't need certain layers. I just need to control the glFog
> with more that just the z value. Isn't it possible to give the glFog a
> function that depends on both z and (h,p,r) to calculate its fog?
>
No, glFog depends only on z. There is an extension glFogCoord1fEXT,
supported on
NVidia and ATI chips, I believe, that allows you to specify z per
vertex. You
would have to compute the z value yourself or use a vertex program to do
it.
Then you don't have to draw the scene twice. This functionality is not
exposed
in performer.
> Regards,
> Andreas
>
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