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RE: [Virtools] Fog: density, etc.



please get me back out of your list
thanks !
-----Message d'origine-----
De : owner-virtools-user-group@lists.theswapmeet.com [mailto:owner-virtools-user-group@lists.theswapmeet.com]De la part de Lloyd, Rob
Envoyé : mercredi 15 novembre 2000 18:20
À : virtools-user-group@lists.theswapmeet.com
Objet : RE: [Virtools] Fog: density, etc.

An additional question about fog:
 
Again, density seems to have absolutely no effect.
 
Given a scene with a static "fog end" distance, as the "fog start" distance is set closer and closer to the camera, the fog gets thinner and thinner.
 
Is there a finite number of fog density steps [256?] that are used to span the space between fog start and fog end? This would explain the thinning as the fog span gets bigger.
 
Is the fog rendered differently in directX and openGL?
 
Regards,
 
Rob
 
-----Original Message-----
From: Lloyd, Rob [mailto:rlloyd@etcusa.com]
Sent: Wednesday, November 15, 2000 11:16 AM
To: virtools-user-group@lists.theswapmeet.com
Subject: [Virtools] Fog: density, etc.

Hello,
 
Can someone elaborate on the fog in Virtools?
 
The density setting seems to have no effect.
The fog end value acts like a camera clipping plane [nothing is visible beyond it].
Is it possible to set a ceiling for the fog?
 
The sample recently posted [re:multitexturing and fog] seems to have fog with a ceiling. Is this simply an optical illusion?
 
I am experimenting with using particles for fog so I can control it and make it dimensional. Has anyone else tried this with success?
 
Regards,
 
Rob

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