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From: Tim Nikias
Subject: Radiosity Save/Load without re-pre-trace?
Date: 22 Apr 2002 16:20:20
Message: <3CC47068.35B58A86@gmx.de>
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I've been working on a radiosity scene lately (see my recent
Gerbera images in binaries.images), and use the save_file
option to output the radiosity. But even when using
load_file, I always get the pretracing, and it never
saves any time.
How can I tell POV to simply load the radiosity and
don't do all the calculations again although I'm loading?
And what do I have to leave in for the data to stay
the way it was saved?
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmx de
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This should do it:
load_file "my_radiosity.rad"
pretrace_start 1
pretrace_end 1
always_sample off
I only tried a few times, but it seems necessary to also input the same rad
settings as used in the saved file, along with this.
Regards,
Hugo
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From: Jaime Vives Piqueres
Subject: Re: Radiosity Save/Load without re-pre-trace?
Date: 22 Apr 2002 18:09:52
Message: <3cc48a2f@news.povray.org>
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Hugo wrote:
> This should do it:
>
> load_file "my_radiosity.rad"
> pretrace_start 1
> pretrace_end 1
> always_sample off
>
> I only tried a few times, but it seems necessary to also input the same
> rad settings as used in the saved file, along with this.
Only error_bound seems to be computed when loading rad files, from my
experience. Using the same value seems the faster option. Using a lower
value gives poor results but cleans artifacts.
Hope this helps...
--
Jaime Vives Piqueres
La Persistencia de la Ignorancia
http://www.ignorancia.org
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From: Tim Nikias
Subject: Re: Radiosity Save/Load without re-pre-trace?
Date: 23 Apr 2002 00:46:40
Message: <3CC4E713.9142662@gmx.de>
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Thanks you two, it helped.
Jaime Vives Piqueres wrote:
> Hugo wrote:
>
> > This should do it:
> >
> > load_file "my_radiosity.rad"
> > pretrace_start 1
> > pretrace_end 1
> > always_sample off
> >
> > I only tried a few times, but it seems necessary to also input the same
> > rad settings as used in the saved file, along with this.
>
> Only error_bound seems to be computed when loading rad files, from my
> experience. Using the same value seems the faster option. Using a lower
> value gives poor results but cleans artifacts.
>
> Hope this helps...
>
> --
> Jaime Vives Piqueres
>
> La Persistencia de la Ignorancia
> http://www.ignorancia.org
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde
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> Only error_bound seems to be computed when loading rad files, from my
> experience.
What about brightness and recursion limit?
Regards,
Hugo
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From: Jaime Vives Piqueres
Subject: Re: Radiosity Save/Load without re-pre-trace?
Date: 26 Apr 2002 14:19:18
Message: <3cc99a25@news.povray.org>
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Hugo wrote:
>> Only error_bound seems to be computed when loading rad files, from my
>> experience.
>
> What about brightness and recursion limit?
Sorry the late answer: I've now little time for POV-Ray. But I've just
tested more about loading rad files, and learned some more things.
Brightness is indeed taken into account, but recursion_limit has no
effect on both render time nor quality. Count slows down rendering but
seems to not increases quality. I will keep testing...
--
Jaime Vives Piqueres
La Persistencia de la Ignorancia
http://www.ignorancia.org
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