POV-Ray : Newsgroups : povray.unofficial.patches : Different output with UVPOVa5 vs POV3.1e Server Time
3 Sep 2024 00:20:21 EDT (-0400)
  Different output with UVPOVa5 vs POV3.1e (Message 1 to 3 of 3)  
From: Peter Popov
Subject: Different output with UVPOVa5 vs POV3.1e
Date: 1 Jun 1999 18:46:38
Message: <375853ea.12910099@news.povray.org>
Greetings

Please see the Brandy Glass posts in p.b.i and p.b.s-f. When I render
this in UVPOV with no photons whatsoever, it looks different. More
precisely, much brighter. Why?

The texture on the floor is from wood.inc, can it be that?


---------
Peter Popov
ICQ: 15002700


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From: Ken
Subject: Re: Different output with UVPOVa5 vs POV3.1e
Date: 1 Jun 1999 22:09:17
Message: <37548389.1A546EEA@pacbell.net>
Peter Popov wrote:
> 
> Greetings
> 
> Please see the Brandy Glass posts in p.b.i and p.b.s-f. When I render
> this in UVPOV with no photons whatsoever, it looks different. More
> precisely, much brighter. Why?
> 
> The texture on the floor is from wood.inc, can it be that?
> 
> ---------
> Peter Popov
> ICQ: 15002700


I could will be a layered texture problem. Nathan changed the way his patch
handles layered textures and will not show them corectly if they use filtering
layeres instead of transmit layers.

-- 
Ken Tyler

mailto://tylereng@pacbell.net


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From: Nathan Kopp
Subject: Re: Different output with UVPOVa5 vs POV3.1e
Date: 1 Jun 1999 22:35:29
Message: <375489E5.E1BD41ED@Kopp.com>
Ken's right.  All of the textures in woods.inc use 'rgbf'.  If you change
them to 'rgbt' they will work with UVPov (and still work with the official
POV).  Official POV-Ray treates 'filter' almost exaclty like 'transmit'
for layered textures, and UVPov treats filter like a normal filter and
transmit like transmit (which is how I think it should be, although it
is not good for backwards compatibility).

(Make a backup of woods.inc and other inc files before you go searching
and replacing.)

I'll document this in my webpage.  Plus, when I get around to making
superpatch/uvpov combination, it won't have my weird layered textures.

-Nathan

Peter Popov wrote:
> 
> Greetings
> 
> Please see the Brandy Glass posts in p.b.i and p.b.s-f. When I render
> this in UVPOV with no photons whatsoever, it looks different. More
> precisely, much brighter. Why?
> 
> The texture on the floor is from wood.inc, can it be that?
> 
> ---------
> Peter Popov
> ICQ: 15002700


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