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Hi Folks,
I was playing with the slide projector code Ingo posted, trying to apply
the lens equations which were also posted and using media photons to see
the light paths.
If anyone wants the modified code I'll post it.
Just over 20hr render time, about a half million surface photons, one
and a half million media photons.
I am really glad I'm using a 1GHz Athlon these days ...
Bye for now,
Mike Andrews.
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Attachments:
Download 'projector.jpg' (33 KB)
Preview of image 'projector.jpg'
![projector.jpg](/povray.binaries.images/attachment/%3C3B1375D0.36393395%40reading.ac.uk%3E/projector.jpg?ttop=443840&toff=10800&preview=1)
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Where's the smoke that should be issuing up from the focal point? :-)
Why bother asking? Of course people will want to see what the pov script
is. Using it might prove difficult for some; luckily, I think I could
manage a smaller render within a day.
It's pretty spectacular, if not for the overall object itself then for the
great media+photons.
Bob H.
"Michael Andrews" <M.C### [at] reading ac uk> wrote in message
news:3B1375D0.36393395@reading.ac.uk...
>
> I was playing with the slide projector code Ingo posted, trying to apply
> the lens equations which were also posted and using media photons to see
> the light paths.
>
> If anyone wants the modified code I'll post it.
>
> Just over 20hr render time, about a half million surface photons, one
> and a half million media photons.
>
> I am really glad I'm using a 1GHz Athlon these days ...
Post a reply to this message
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Ok, I've posted the code in p.t.s-f.
"Bob H." wrote:
>
> Where's the smoke that should be issuing up from the focal point? :-)
>
Yes, my original working title was 'Early Star-Wars Project weapons
test' ;-)
> Why bother asking? Of course people will want to see what the pov script
> is. Using it might prove difficult for some; luckily, I think I could
> manage a smaller render within a day.
If you tone down the settings a bit (media samples, photon spacing,
antialiasing), a 640x480 renders in about 15min on my machine ... I
cranked up the quality settings a long way for this image.
> It's pretty spectacular, if not for the overall object itself then for the
> great media+photons.
I just put in the frame to contain the media volume and give a bit of
structure to the image.
>
> Bob H.
>
Bye for now,
Mike Andrews.
Post a reply to this message
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in news:3B1375D0.36393395@reading.ac.uk Michael Andrews wrote:
> I was playing with the slide projector code ...
Ooh, nice. Very subtle dispersion and light colouration.
Expected the light path to be different, time to dig out the optics
books.
Ingo
--
Photography: http://members.home.nl/ingoogni/
Pov-Ray : http://members.home.nl/seed7/
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That is sweet.
--
Cheers
Steve email mailto:ste### [at] zeropps uklinux net
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
7:13pm up 116 days, 20:01, 2 users, load average: 1.26, 1.17, 1.11
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