POV-Ray : Newsgroups : povray.general : Media & Fog Conflict? Server Time
5 Nov 2024 20:17:42 EST (-0500)
  Media & Fog Conflict? (Message 1 to 2 of 2)  
From: Scott Middleton
Subject: Media & Fog Conflict?
Date: 24 Jul 1998 02:01:31
Message: <35B814C2.7C38FCD7@pld.com>
Whenever I try using fog in a scene along with media objects, the
transparent shell of the hollow object becomes visible.  I am trying to
use a very low-lying ground fog and the media objects are high in the
sky (example: fog_altitude about 2 units with the bottom of the media
objects no lower than 14 units).  I have tried both filter of 1 and
transmittance of 1 (shells) and neither seem to stay completely
transparent when rendered.  Is anyone else having this problem?  Any
suggestions?


Post a reply to this message

From: Dan Connelly
Subject: Re: Media & Fog Conflict?
Date: 24 Jul 1998 06:28:38
Message: <35B853D6.556DFD48@flash.net>
Use media for the fog?

This will substantially slow the rendering, from my limited
experience, but intermedia conflicts shouldn't occur (if
max_trace is set sufficiently set to allow rays to traverse
the required number of transparent boundaries, as I discovered
the hard way...)

BTW I have found the same thing, both with the 3.0 atmosphere
and with fog, with 3.0 halos.  One poster in news:pov.newusers
suggested tinting the container to compensate for the
missing atmosphere effect.  Another idea might be to add 
an interior to the container to take the place of the missing
fog.

If you find a solution, please post it here, as this is something
of general interest, I think -- fogs seem much faster than the
more general methods.

Dan

Scott Middleton wrote:
> 
> Whenever I try using fog in a scene along with media objects, the
> transparent shell of the hollow object becomes visible.  I am trying to
> use a very low-lying ground fog and the media objects are high in the
> sky (example: fog_altitude about 2 units with the bottom of the media
> objects no lower than 14 units).  I have tried both filter of 1 and
> transmittance of 1 (shells) and neither seem to stay completely
> transparent when rendered.  Is anyone else having this problem?  Any
> suggestions?

-- 
http://www.flash.net/~djconnel/


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.