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From: Nicolas Alvarez
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 28 Jan 2008 10:51:30
Message: <479dfa02$1@news.povray.org>
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>> I tried with photons, and there were very long periods where the
>> "photons shot" counter didn't change, which could mean POV-Ray is
>> shooting lots of photons but "missing the object".
>
> Photon count went up until a minute of shooting passed, then it got
> stuck at 41294 photons shot. Been at that number for *20 minutes*.
12 hours later, 208446 photons shot.
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From: Sven Littkowski
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 28 Jan 2008 12:15:16
Message: <479e0da4@news.povray.org>
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My PC came to around 32,000, before it crashed. Let's see...
Sven
"Nicolas Alvarez" <nic### [at] gmail isthebestcom> schrieb im
Newsbeitrag news:479dfa02$1@news.povray.org...
>>> I tried with photons, and there were very long periods where the
>>> "photons shot" counter didn't change, which could mean POV-Ray is
>>> shooting lots of photons but "missing the object".
>>
>> Photon count went up until a minute of shooting passed, then it got stuck
>> at 41294 photons shot. Been at that number for *20 minutes*.
>
> 12 hours later, 208446 photons shot.
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From: Nicolas Alvarez
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 28 Jan 2008 12:20:46
Message: <479e0eee$1@news.povray.org>
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Sven Littkowski escribió:
> My PC came to around 32,000, before it crashed. Let's see...
>
I added autostop 0.0. It's supposed to improve speed. The manual says
"always use autostop unless it causes problems". I can't tell if it
"causes problems" until I see the final image :)
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From: Nicolas Alvarez
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 28 Jan 2008 16:04:27
Message: <479e435b@news.povray.org>
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> 12 hours later, 208446 photons shot.
Elapsed: 17h 41m
Photons shot so far: 249561
I still see extremely long periods of the counter not moving.
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From: Sven Littkowski
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 28 Jan 2008 20:10:02
Message: <479e7cea@news.povray.org>
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Autostop? Hmm, I just checked the help manual. Interesting! I added it to my
photon map.
Render Time: Seems, your PC renders fast, too.. Your one is even faster
since I had to run plenty other programs at the same time. I reached the
30,000s on day 3. You should reach them on the 24th hour, I think.
Then it will get exciting. Then it will be the time to see, if your system
masters the crash borderline where my system failed, or not. The countdown
is on.
Sven
"Nicolas Alvarez" <nic### [at] gmailisthebestcom> schrieb im
Newsbeitrag news:479e435b@news.povray.org...
>> 12 hours later, 208446 photons shot.
>
> Elapsed: 17h 41m
> Photons shot so far: 249561
>
> I still see extremely long periods of the counter not moving.
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From: Nicolas Alvarez
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 29 Jan 2008 15:50:12
Message: <479f9184$1@news.povray.org>
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>> 12 hours later, 208446 photons shot.
>
> Elapsed: 17h 41m
> Photons shot so far: 249561
Elapsed: 1d 15h 26m
Photons shot: 578211
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From: Sven Littkowski
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 29 Jan 2008 20:18:51
Message: <479fd07b$1@news.povray.org>
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You passed the crash borderline and are on unknown ground now. That will
become the mother of all photon map files!
Please keep on keeping me up to date - I am excited to hear more!
Big thanks, best greetings,
Sven
"Nicolas Alvarez" <nic### [at] gmailisthebestcom> schrieb im
Newsbeitrag news:479f9184$1@news.povray.org...
>>> 12 hours later, 208446 photons shot.
>>
>> Elapsed: 17h 41m
>> Photons shot so far: 249561
>
> Elapsed: 1d 15h 26m
> Photons shot: 578211
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"Sven Littkowski" <sven [] jamaica-focus [] com> wrote:
> You passed the crash borderline and are on unknown ground now.
Corageosly going where no other raytracer ever dared...
> That will
> become the mother of all photon map files!
ah, the 1 GB photon map!
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From: Nicolas Alvarez
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 29 Jan 2008 21:53:31
Message: <479fe6ab$1@news.povray.org>
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>> That will
>> become the mother of all photon map files!
>
> ah, the 1 GB photon map!
>
Not really. At the horribly-slow speed this is going, I saw POV-Ray only
using like 300MB of RAM, which means that's how much of the photon map
it generated. I have had my own scenes generate 1GB of photons in a few
minutes :) Let me check exactly how much RAM it's using now.
What?
8MB? And no CPU time?
IT FINISHED??
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From: Nicolas Alvarez
Subject: Re: Photon Map: Created at Lower Res than Scene?
Date: 29 Jan 2008 22:03:38
Message: <479fe90a$1@news.povray.org>
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It did finish! Here are some statistics.
Total rays traced: 1331912707
Biggest number shown in stats: 292325860305, the amount of tests done
against "Blob bound". Thanks POV-Ray for using 64-bit integers in stats!
2^32 rays are NOT enough for everybody :)
Roots tested: 37510258644
Number of photons shot: 1328994234
Surface photons stored: 1481333 (0.11% of total photons shot)
Priority queue insert: 1758546
Priority queue remove: 1023832
Gather function called: 37107
Gather radius expanded: 1
Peak memory used: 52514507 bytes (50MB)
Total Scene Processing Times
Parse Time: 0 hours 0 minutes 2 seconds (2 seconds)
Photon Time: 47 hours 5 minutes 12 seconds (169512 seconds)
Render Time: 0 hours 7 minutes 1 seconds (421 seconds)
Total Time: 47 hours 12 minutes 15 seconds (169935 seconds)
CPU time used: kernel 12.09 seconds, user 168811.69 seconds, total
168823.78 seconds
Image resolution was 160x120, since all I wanted was the photons. It
rendered at 6 pixels per minute.
The photon map file is only 29MB!
@Sven: I'll send you the photon map. Can I post the (tiny) image to the
newsgroup, or is the scene "secret"? :)
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