POV-Ray : Newsgroups : povray.unofficial.patches : alpha channel pov3.1/megapov Server Time
1 Sep 2024 16:14:36 EDT (-0400)
  alpha channel pov3.1/megapov (Message 1 to 3 of 3)  
From: Mael
Subject: alpha channel pov3.1/megapov
Date: 14 Mar 2001 07:21:47
Message: <3aaf625b@news.povray.org>
for information , official povray3.1 and megapov 0.7 don t give the same
output on alpha channel (windows versions, output alpha on, output format
PNG 8bits/channel).

megapov only have alpha in the background, while povray3.1 have the alpha
background too plus the two sphere with some alpha :

camera { location <1,1, -6> look_at <0, 1, 0> }

plane { y, 0 pigment { color rgbft <.9,.3,.7,0,0>}}

sphere { <1,1,0>, 1 pigment { color rgbft <.4,.5,.7,0,.5> }}
sphere { <-2,2,.4> , 1 pigment { color rgbft <.3,.5,.5,0,.5> }}

light_source { <10, 10, -10>, color rgb 1 }


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From: Bob H 
Subject: Re: alpha channel pov3.1/megapov
Date: 14 Mar 2001 08:32:56
Message: <3aaf7308$1@news.povray.org>
"Mael" <Mae### [at] hotmailcom> wrote in message
news:3aaf625b@news.povray.org...
> for information , official povray3.1 and megapov 0.7 don t give the same
> output on alpha channel (windows versions, output alpha on, output format
> PNG 8bits/channel).
>
> megapov only have alpha in the background, while povray3.1 have the alpha
> background too plus the two sphere with some alpha :

I know.  I posted about it a few days ago but no one else until you seems to
know about it.  Either that we are the only two with defective POVs.

Bob H.


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From: Nathan Kopp
Subject: Re: alpha channel pov3.1/megapov
Date: 14 Mar 2001 19:36:32
Message: <3ab00e90@news.povray.org>
"Mael" <Mae### [at] hotmailcom> wrote...
> for information , official povray3.1 and megapov 0.7 don t give the same
> output on alpha channel (windows versions, output alpha on, output format
> PNG 8bits/channel).
>
> megapov only have alpha in the background, while povray3.1 have the alpha
> background too plus the two sphere with some alpha :

Yes, there appears to be a problem with MegaPov, but I'm not exactly sure
what it is.

-Nathan


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