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Very nice . . . are you rendering and then cutting/pasting into the camera
pic
in some graphics program ? Just wondering about the sequence.
I notice that the vertical lines of the two rendered buildings are
converging
on some distant point high above . . .as they should . . . but that the
building
on the left . . . doesn't appear to have it's vertical edge pointing to that
same
perspective point. Perhaps that's what you are referring to when you speak
of camera parameters, eh? Perhaps a change in the camera angle value to
simulate a longer mm lens . . . or a little more rotation of the center
building
to the left to make the verticals appear a little more parallel . . .
Very nice work . . . you have given me a lot of ideas for combining POV and
photos . . . thanks.
**
Y
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On Sun, 04 Mar 2001 15:28:37 +0100, Disnel wrote:
>
>
>First try. Guess for camera parameters, no good, yet ...
Maybe a bit less AA.
--
Cheers
Steve email mailto:ste### [at] zeropps uklinuxnet
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
2:52pm up 30 days, 16:33, 2 users, load average: 1.00, 1.00, 1.00
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Looks quite good, the rotation or camera position needs some correction
though.
Also the light position seems slightly wrong, the left sides of the
rendered houses are brighter which does not seem to comply exactly with
the photo.
BTW, the really difficult thing about such a scene would correct
reflection in the windows of the houses :-)
Christoph
--
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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Yeah, the positioning is a little off. Those are odd buildings, rather
interesting.
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Great masking. I looked at this a long time pretending it's real.
The perspective effect seen by the lamp post at far right is much more than
seen in the building at far left, due to distance perhaps? I almost seems
that if the photo were tilted some degrees clockwise that all would line up.
Bob H.
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Disnel wrote:
>
>
> First try. Guess for camera parameters, no good, yet ...
>
> ------------------------------------------------------------------------
> [Image]
Looks pretty good.
Others here have given their suggestions, which I won't repeat, but I
would add that you need to dirty up the textures a little to make the
buildings match the rest of the scene, and since post-processing is
inevitable with a scene like this, you might as well take the time to
blur the rendered buildings slightly.
-Xplo
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> Yeah, the positioning is a little off. Those are odd buildings, rather
> interesting.
if you remove the photo'd buildings it should look much better, and save you
plenty of headaches in lining things up.
I tried this a while back with a photo of a single building, to add a
reflective ufo floating next to it, with the ufo reflected in the building,
and vice versa, gave up after a while as it was a pig to get lined up just
so.
best results came from creating a cube in moray, setting the photo as a bg
image then moving the camera around for hours till the outline of the box
matched that of the building. still no easy feat, and as I said, gave up
after a while :)
--
Rick
POV-Ray News & Resources - http://povray.co.uk
Kitty5 WebDesign - http://kitty5.com
Hi-Impact web site design & database driven e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
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Realviz has some nice programs that can help you with this. Matchmover
figures out camera tracking if I remember correctly. Image Modeller makes 3d
objects from photo's. Only thing is it's not free. I have a trial CD but you
can't save anything.
Nekar
Rick [Kitty5] <ric### [at] kitty5com> wrote in message
news:3aa2f1b4@news.povray.org...
>
> > Yeah, the positioning is a little off. Those are odd buildings, rather
> > interesting.
>
> if you remove the photo'd buildings it should look much better, and save
you
> plenty of headaches in lining things up.
>
> I tried this a while back with a photo of a single building, to add a
> reflective ufo floating next to it, with the ufo reflected in the
building,
> and vice versa, gave up after a while as it was a pig to get lined up just
> so.
>
> best results came from creating a cube in moray, setting the photo as a bg
> image then moving the camera around for hours till the outline of the box
> matched that of the building. still no easy feat, and as I said, gave up
> after a while :)
>
>
> --
> Rick
>
> POV-Ray News & Resources - http://povray.co.uk
> Kitty5 WebDesign - http://kitty5.com
> Hi-Impact web site design & database driven e-commerce
> TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
>
> PGP Public Key
> http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
>
>
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Nekar Xenos wrote:
> Realviz has some nice programs that can help you with this. Matchmover
> figures out camera tracking if I remember correctly. Image Modeller makes 3d
> objects from photo's. Only thing is it's not free. I have a trial CD but you
> can't save anything.
If the lens doesn't distort parallel lines it's just a matter of some
complicated trig and analytic trig...
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Disnel wrote:
>
> First try. Guess for camera parameters, no good, yet ...
>
> ------------------------------------------------------------------------
> [Image]
Well the biggest problem I see is one of scale the buildings you rendered seem
too small for the one in the foreground. If you want to see some really
impressive shots of this technique the fight club dvd has lots of how they did
it footage. Many scenes that I thought were done with a camera were 3d
models. What they did was take a real object, and take lots of pictures of
it, and then use them as image maps on a 3d model of the same object. They
then had a completely believable 3d object that they could get impossible
camera shots of.
--
Dan Johnson
http://www.geocities.com/zapob
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