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From: Marc Roth
Subject: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 10:04:18
Message: <40337ef2$1@news.povray.org>
hi everybody.
is there a possibilty to have the output of a render as a jpg file? 
because in the message window of povray it says "LibJPEG 6b, Copyright 
1998 Thomas G. Lane"... i didn't find a commandline-switch or something 
to change the output to jpg, but if it's not possible, why mention the 
JPEG-llibrary?
an alternative would be a program i can use in a batchfile to convert 
files from bmp to jpg, if possible with low quality loss, like acdsee 
does. i need this because i want to make an animation with 1500 frames, 
but at 640x480 this would need 900kb per picture, resulting in almost 
1.5GB of files. this would not be a problem if i were rendering on my 
own pc, but i have to do it on another machine to which i have only slow 
access via wlan.
thanks for listening to me, and if this is the wrong newsgroup, please 
point me to the right one.
bye
	Marc


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From: ABX
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 10:16:04
Message: <ib07301t7ehcgvibh45fud07geqg53139d@4ax.com>
On Wed, 18 Feb 2004 16:08:31 +0100, Marc Roth <mar### [at] rothconsultcom> wrote:
> hi everybody.
> is there a possibilty to have the output of a render as a jpg file? 
> because in the message window of povray it says "LibJPEG 6b, Copyright 
> 1998 Thomas G. Lane"... i didn't find a commandline-switch or something 
> to change the output to jpg, but if it's not possible, why mention the 
> JPEG-llibrary?

For reading?
http://www.google.com/search?q=site:www.povray.org+JPEG

> an alternative would be a program i can use in a batchfile to convert 
> files from bmp to jpg, if possible with low quality loss, like acdsee 
> does.

IrfanView ?

> i need this because i want to make an animation with 1500 frames, 
> but at 640x480 this would need 900kb per picture, resulting in almost 
> 1.5GB of files.

PNG format ?

> this would not be a problem if i were rendering on my 
> own pc, but i have to do it on another machine to which i have only slow 
> access via wlan.

SMPOV ?
http://www.it-berater.org/smpov.htm

ABX


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From: Marc Roth
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 10:33:42
Message: <403385d6$1@news.povray.org>
ABX wrote:

> On Wed, 18 Feb 2004 16:08:31 +0100, Marc Roth <mar### [at] rothconsultcom> wrote:
>>"LibJPEG 6b, Copyright 1998 Thomas G. Lane"
> 
> 
> For reading?
> http://www.google.com/search?q=site:www.povray.org+JPEG
you got a point there... :)

>>an alternative would be a program i can use in a batchfile to convert 
>>files from bmp to jpg, if possible with low quality loss, like acdsee 
>>does.
> 
> 
> IrfanView ?
i'll try this one

>>i need this because i want to make an animation with 1500 frames, 
>>but at 640x480 this would need 900kb per picture, resulting in almost 
>>1.5GB of files.
> 
> 
> PNG format ?
i'm not familiar with this format, i thought it was equally uncompressed

>>this would not be a problem if i were rendering on my 
>>own pc, but i have to do it on another machine to which i have only slow 
>>access via wlan.
i don't think that makes sense, as the connection is not only slow but 
also rather buggy, too many frames would get lost... ATM i'm simply 
copying the .pov file to the remote machine if i have to render 
something big, start up povray, wait, and when it finishes i take some 
hours to copy the resulting pictures to my pc


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From: Dan P
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 12:19:09
Message: <40339e8d$1@news.povray.org>
"Darren" <dne### [at] sanrrcom> wrote in message
news:40339bda$1@news.povray.org...
> Marc Roth wrote:
> > an alternative would be a program i can use in a batchfile to convert
> > files from bmp to jpg,
>
> I'm doing the same thing. I use NETPBM aka PBMPlus. A free set of tools
> for doing all kinds of image manipulation. Have POVRAY output PPM files
> (which is one of the NETPBM formats) and just use PPMTOJPEG to compress
> it. I believe it's available on sourceforge, runs fine on both Windows
> and Unix.
<snip />

I'll throw in my recommendation for netpbm as well. It's a little odd to
learn at first until it snaps in your head how they designed it, but it is
the ultimate conversion utility and it handles damn near every image format
you'll ever see -- and you can make uber MPEG-1 movies with it too. It's
like POV-Ray -- you /can/ find software with fancy interfaces, but you'll
never get the true feeling of power that netpbm will give you (arggh, arggh,
arggh, more power!)


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From: Christopher James Huff
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 13:49:12
Message: <cjameshuff-3EBE65.13494818022004@news.povray.org>
In article <403385d6$1@news.povray.org>,
 Marc Roth <mar### [at] rothconsultcom> wrote:

> > PNG format ?
> i'm not familiar with this format, i thought it was equally uncompressed

PNG uses lossless compression. The reduction in file size is less than 
with lossy formats like JPEG, but you get a perfect reproduction of the 
image. It makes a good replacement for GIF, having better compression, 
supporting 48 bit color, alpha channels, and file gamma values. It's 
also good for archiving images or other situations where you want to 
keep full quality.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/


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From: Thorsten Froehlich
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 14:42:16
Message: <4033c018$1@news.povray.org>
In article <403385d6$1@news.povray.org> , Marc Roth <mar### [at] rothconsultcom>
wrote:

>>>this would not be a problem if i were rendering on my
>>>own pc, but i have to do it on another machine to which i have only slow
>>>access via wlan.
> i don't think that makes sense, as the connection is not only slow but
> also rather buggy, too many frames would get lost...

A WLAN is reliable as any other network as far as deliverly of data is
concerned, it is just slow.  Nothing can get lost or be buggy just because
it is used over a WLAN.

    Thorsten


____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org


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From: Warp
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 15:20:02
Message: <4033c8f1@news.povray.org>
Christopher James Huff <cja### [at] earthlinknet> wrote:
> The reduction in file size is less than 
> with lossy formats like JPEG

  Are there any other lossy formats than JPEG? ;)

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -


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From: Slime
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 16:44:54
Message: <4033dcd6$1@news.povray.org>
>   Are there any other lossy formats than JPEG? ;)

I just invented one: All files compressed with my format are 0 bytes in
size, and when the image is read, its dimensions and colors are guessed.

I expect this to be in widespread use before long.

 - Slime
 [ http://www.slimeland.com/ ]


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From: Marc Roth
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 16:45:40
Message: <4033dd04$1@news.povray.org>
Thorsten Froehlich wrote:

> A WLAN is reliable as any other network as far as deliverly of data is
> concerned, it is just slow.  Nothing can get lost or be buggy just because
> it is used over a WLAN.
> 
>     Thorsten
trust me, i have to use it every day... the problem is, that the walls 
in our house are to thick for it to work properly... i made a check via 
the ping utility over a week about 20% of the pings didn't arrive
but i do agree that it *should* be as reliable as any other network in a 
more common situation ;)
bye,
    Marc


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From: Marc Roth
Subject: Re: JPG-output with povray for windows v3.5
Date: 18 Feb 2004 16:47:24
Message: <4033dd6c$1@news.povray.org>
Dan P wrote:
<snip>

> It's
> like POV-Ray -- you /can/ find software with fancy interfaces, but you'll
> never get the true feeling of power that netpbm will give you (arggh, arggh,
> arggh, more power!)
> 
> 
sounds good, i'm gonna try it :)
bye,
    Marc


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