POV-Ray : Newsgroups : povray.programming : paper written by Nathan Kopp about photon mapping Server Time
14 May 2021 02:54:03 EDT (-0400)
  paper written by Nathan Kopp about photon mapping (Message 1 to 9 of 9)  
From: elma96
Subject: paper written by Nathan Kopp about photon mapping
Date: 7 Apr 2021 16:25:00
Message: <web.606e1500a8e7619e3cb3bd141b1731@news.povray.org>
Hallo,

on this webseite:
http://www-f9.ijs.si/~matevz/docs/MegaPov/megapov.html#photons
is mentioned that Nathan Kopp wrote a paper about photon maps.

Quoting:
"The paper is called Simulating Reflective and Refractive Caustics in POV-Ray
Using a Photon Map, and you can download it in zipped postscript format at
http://nathan.kopp.com/nk_photons.zip (size: about 800 KB)."

Unfortunately this website is no longer available and I can't find this
Zip-file.

Does anyone here maybe still have a copy of it or knows  how to acquire it?
I would aprreciate  it.

Regards
Elma


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From: Bald Eagle
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 7 Apr 2021 16:40:01
Message: <web.606e178bd017da6b1f9dae3025979125@news.povray.org>
"elma96" <nomail@nomail> wrote:

> Does anyone here maybe still have a copy of it or knows  how to acquire it?
> I would aprreciate  it.

The Wayback Machine at archive.org is your friend.


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Attachments:
Download 'nk_pov_photons.ps.txt' (2296 KB)

From: Kenneth
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 8 Apr 2021 13:40:00
Message: <web.606f3f85d017da6bd98418916e066e29@news.povray.org>
"Bald Eagle" <cre### [at] netscapenet> wrote:

>
> The Wayback Machine at archive.org is your friend.

Do you happen to know what app will display this file? At the top, it says
%!PS-Adobe-3.0
....and the next line says
%%Creator: PSCRIPT.DRV Version 4.0

Looks like a Postscript file(?)

Btw, I actually thought I had a copy of Nathan Kopp's paper in some form,
downloaded long ago; but no luck in my file searches.


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From: ingo
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 8 Apr 2021 15:50:17
Message: <XnsAD06DE20F76E9seed7@news.povray.org>
in news:web.606f3f85d017da6bd98418916e066e29@news.povray.org Kenneth
wrote: 

> Do you happen to know what app will display this file? At the top, it
> says %!PS-Adobe-3.0
> 

https://www.ghostscript.com/


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From: Bald Eagle
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 8 Apr 2021 16:25:00
Message: <web.606f6696d017da6b1f9dae3025979125@news.povray.org>
ingo <ing### [at] tagpovrayorg> wrote:
> in news:web.606f3f85d017da6bd98418916e066e29@news.povray.org Kenneth
> wrote:
>
> > Do you happen to know what app will display this file? At the top, it
> > says %!PS-Adobe-3.0
> >
>
> https://www.ghostscript.com/

The inbuilt "document viewer" in Linux Mint opens it as well.   You might be
able to use an office app in windows...   ?


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From: ingo
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 8 Apr 2021 16:54:13
Message: <XnsAD06E8FB79C1Aseed7@news.povray.org>
in news:web.606f6696d017da6b1f9dae3025979125@news.povray.org Bald Eagle 
wrote:

> You might be
> able to use an office app in windows...   ?
> 

Nothing thats available by default. Here's a list of tools
https://extension.nirsoft.net/ps

Ingo


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From: Tor Olav Kristensen
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 8 Apr 2021 23:35:00
Message: <web.606fcb53d017da6b8e52cc8789db30a9@news.povray.org>
"Kenneth" <kdw### [at] gmailcom> wrote:
> "Bald Eagle" <cre### [at] netscapenet> wrote:
>
> >
> > The Wayback Machine at archive.org is your friend.
>
> Do you happen to know what app will display this file? At the top, it says
> %!PS-Adobe-3.0
> ....and the next line says
> %%Creator: PSCRIPT.DRV Version 4.0
>
> Looks like a Postscript file(?)
>
> Btw, I actually thought I had a copy of Nathan Kopp's paper in some form,
> downloaded long ago; but no luck in my file searches.


Those that have a postscript printer could just try to "drop" or copy the file
to the printer to get a printout.

Some Linux distribution have a ps2pdf utility installed that can convert the
postscript file to a PDF file. See the attached PDF file, that has been
converted that way.

--
Tor Olav
http://subcube.com
https://github.com/t-o-k


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Attachments:
Download 'nk_pov_photons.pdf' (590 KB)

From: Mr
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 9 Apr 2021 07:50:00
Message: <web.60703f1fd017da6b6adeaecb3f378f2@news.povray.org>
"Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
> "Kenneth" <kdw### [at] gmailcom> wrote:
> > "Bald Eagle" <cre### [at] netscapenet> wrote:
> >
> > >
> > > The Wayback Machine at archive.org is your friend.
> >
> > Do you happen to know what app will display this file? At the top, it says
> > %!PS-Adobe-3.0
> > ....and the next line says
> > %%Creator: PSCRIPT.DRV Version 4.0
> >
> > Looks like a Postscript file(?)
> >
> > Btw, I actually thought I had a copy of Nathan Kopp's paper in some form,
> > downloaded long ago; but no luck in my file searches.
>
>
> Those that have a postscript printer could just try to "drop" or copy the file
> to the printer to get a printout.
>
> Some Linux distribution have a ps2pdf utility installed that can convert the
> postscript file to a PDF file. See the attached PDF file, that has been
> converted that way.
>
> --
> Tor Olav
> http://subcube.com
> https://github.com/t-o-k

Thanks for the file ! I have a profane feeling that many of the statements made
in the paper are no longer relevant as of POV 3.8 aren't they?
Some pov/branch developer review where he would strike out all solved issues  or
changed behaviours may save some energy. would a lot remain useful information?


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From: Tor Olav Kristensen
Subject: Re: paper written by Nathan Kopp about photon mapping
Date: 9 Apr 2021 21:50:00
Message: <web.6071032ad017da6b6d7cc5a589db30a9@news.povray.org>
"Mr" <nomail@nomail> wrote:
>...
> Thanks for the file !

No problem.


> I have a profane feeling that many of the statements made
> in the paper are no longer relevant as of POV 3.8 aren't they?
>...

I haven't had time to read it yet, so I don't know.

--
Tor Olav
http://subcube.com
https://github.com/t-o-k


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