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From: Peter Cracknell
Subject: Rendering Large Images
Date: 11 Nov 2000 13:58:44
Message: <3a0d96e4@news.povray.org>
I've been rendering at 2048*1536 and found that if I stop and resume it
later (ie all day, then turn it off at night, then continue the next day) a
visible line occurs from where the render starts again.  My 4 day render for
example has three visible lines, where it appers to get lighter; is there
anyway to stop this apart from leaving it rendering constantly?  This could
be a fault of Moray, but to be honest I'm suspecting its just something I'm
doing wrong with POV.  Thanks

Peter Cracknell (.com)


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From: Chris Huff
Subject: Re: Rendering Large Images
Date: 11 Nov 2000 15:34:59
Message: <chrishuff-9B9C01.15350711112000@news.povray.org>
In article <3a0d96e4@news.povray.org>, "Peter Cracknell" 
<pc### [at] lineonenet> wrote:

> I've been rendering at 2048*1536 and found that if I stop and resume 
> it later (ie all day, then turn it off at night, then continue the 
> next day) a visible line occurs from where the render starts again.  

Are you using radiosity? If so, stopping the render and starting again 
will often cause visible breaks. I don't think there is a way to work 
around this.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Margus Ramst
Subject: Re: Rendering Large Images
Date: 11 Nov 2000 19:14:25
Message: <3A0DE108.22FC0BA1@peak.edu.ee>
Chris Huff wrote:
> 
> Are you using radiosity? If so, stopping the render and starting again
> will often cause visible breaks. I don't think there is a way to work
> around this.
> 

Except using MegaPOV radiosity - but that would reguire some actual *shudder*
hand-editing of your POV file...
I can state for a fact that with MegaPOV it is possible to continue a radiosity
render without problems.

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg


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From: Peter Cracknell
Subject: Re: Rendering Large Images
Date: 12 Nov 2000 07:24:28
Message: <3a0e8bfc$1@news.povray.org>
I forgot to mention I was using Radiosity, but with MegaPOV.  Hand-editing
of my POV file, you must be joking, I'll have to find a way to work around
it (by the time I've finished my Moray file I barely know where I am within
Moray let alone POV, unless its hand-coded from scratch I rarely know whats
going on).

Peter Cracknell (.com)

"Margus Ramst" <mar### [at] peakeduee> wrote in message
news:3A0DE108.22FC0BA1@peak.edu.ee...
> Chris Huff wrote:
> >
> > Are you using radiosity? If so, stopping the render and starting again
> > will often cause visible breaks. I don't think there is a way to work
> > around this.
> >
>
> Except using MegaPOV radiosity - but that would reguire some actual
*shudder*
> hand-editing of your POV file...
> I can state for a fact that with MegaPOV it is possible to continue a
radiosity
> render without problems.
>
> --
> Margus Ramst
>
> Personal e-mail: mar### [at] peakeduee
> TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg


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From: Chris Huff
Subject: Re: Rendering Large Images
Date: 12 Nov 2000 09:27:28
Message: <chrishuff-97021E.09273712112000@news.povray.org>
In article <3a0e8bfc$1@news.povray.org>, "Peter Cracknell" 
<pc### [at] lineonenet> wrote:

> I forgot to mention I was using Radiosity, but with MegaPOV.  
> Hand-editing of my POV file, you must be joking, I'll have to find a 
> way to work around it (by the time I've finished my Moray file I 
> barely know where I am within Moray let alone POV, unless its 
> hand-coded from scratch I rarely know whats going on).

MegaPOV radiosity requires some different options than POV 3.1...using 
the same settings won't work. There are some new parameters, so you will 
probably have to edit the file by hand.
However, you don't have to code anything, there are plenty of examples 
of good radiosity settings on these newsgroups, and MegaPOV radiosity 
settings are much less scene-dependant than the old radiosity. Some were 
recently posted in povray.binaries.images and there are probably some 
good bits in the *.scene-files groups.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Margus Ramst
Subject: Re: Rendering Large Images
Date: 12 Nov 2000 10:01:47
Message: <3A0EB101.3DEDDDDE@peak.edu.ee>
Peter Cracknell wrote:
> 
> I forgot to mention I was using Radiosity, but with MegaPOV.  Hand-editing
> of my POV file, you must be joking, I'll have to find a way to work around
> it (by the time I've finished my Moray file I barely know where I am within
> Moray let alone POV, unless its hand-coded from scratch I rarely know whats
> going on).
> 

IIRC you should find the radiosity parameters in the main .pov file, i.e. the
file with the same name as your Moray scene file. The parameters need to be
somewhat different from regular POV, and two useful new options are save_file
and load_file, which will save and load your radiosity data to a file (see MP
docs for more info).
You would probably have to start (and re-start) the render directly from POV,
because otherwise I think Moray will overwrite your changes.

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg


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From: Robert J Becraft
Subject: Re: Rendering Large Images
Date: 12 Nov 2000 10:27:04
Message: <3a0eb6c8$1@news.povray.org>
Why do you stop your render at night?  I have found that I get upwards of
7-8 hours of good rendertime by leaving my machine cranking while I sleep.
Not only that, but if you get up and go to work, you will typically find
that you have upwards of 15-17 hours or more worth of machine time that you
aren't on it messing with it.

Robert J Becraft
aka cas### [at] aolcom

Peter Cracknell <pc### [at] lineonenet> wrote in message
news:3a0d96e4@news.povray.org...
> I've been rendering at 2048*1536 and found that if I stop and resume it
> later (ie all day, then turn it off at night, then continue the next day)
a
> visible line occurs from where the render starts again.  My 4 day render
for
> example has three visible lines, where it appers to get lighter; is there
> anyway to stop this apart from leaving it rendering constantly?  This
could
> be a fault of Moray, but to be honest I'm suspecting its just something
I'm
> doing wrong with POV.  Thanks
>
> Peter Cracknell (.com)
>
>
>


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From: Peter Cracknell
Subject: Re: Rendering Large Images
Date: 12 Nov 2000 16:02:24
Message: <3a0f0560@news.povray.org>
Er yeah but my computer is in my bedroom, and its an AMD TBird, yes it has
one hell of a fan and too top it off, my GFx card likes to overheat every so
often so I leave the lid of making it even more delightful.

A bit of insomnia doesn't help either :)

Peter Cracknell (.com)

"Robert J Becraft" <cas### [at] aolcom> wrote in message
news:3a0eb6c8$1@news.povray.org...
> Why do you stop your render at night?  I have found that I get upwards of
> 7-8 hours of good rendertime by leaving my machine cranking while I sleep.
> Not only that, but if you get up and go to work, you will typically find
> that you have upwards of 15-17 hours or more worth of machine time that
you
> aren't on it messing with it.
>
> Robert J Becraft
> aka cas### [at] aolcom
>
> Peter Cracknell <pc### [at] lineonenet> wrote in message
> news:3a0d96e4@news.povray.org...
> > I've been rendering at 2048*1536 and found that if I stop and resume it
> > later (ie all day, then turn it off at night, then continue the next
day)
> a
> > visible line occurs from where the render starts again.  My 4 day render
> for
> > example has three visible lines, where it appers to get lighter; is
there
> > anyway to stop this apart from leaving it rendering constantly?  This
> could
> > be a fault of Moray, but to be honest I'm suspecting its just something
> I'm
> > doing wrong with POV.  Thanks
> >
> > Peter Cracknell (.com)
> >
> >
> >
>
>


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From: Jamie Davison
Subject: Re: Rendering Large Images
Date: 12 Nov 2000 18:02:22
Message: <MPG.14792c38e1f21ffd989840@news.povray.org>
On Sun, 12 Nov 2000 21:03:09 -0000, Peter Cracknell wrote...
> Er yeah but my computer is in my bedroom, and its an AMD TBird, yes it has
> one hell of a fan and too top it off, my GFx card likes to overheat every so
> often so I leave the lid of making it even more delightful.

That's pretty close to the reason that I don't leave my machine on 
overnight.  Without the overheating graphics card bit or the insomnia 
bit.

I find it annoying to sleep with my head about five feet from a couple of 
computer fans.

Bye for now,
     Jamie.


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From: Mark Wagner
Subject: Re: Rendering Large Images
Date: 13 Nov 2000 02:22:12
Message: <3a0f96a4$1@news.povray.org>
Jamie Davison wrote in message ...
>I find it annoying to sleep with my head about five feet from a couple of
>computer fans.


Same here, except in my case it's four feet.  Additionally, if the hard disk
spins down, it sounds like a jet airplane taking off when it starts up
again.

--
Mark


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