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In article <362ed33e.12121109@news.povray.org> , new### [at] DESPAMpovray org
(povray.org admin team) wrote:
>It will probably only work in IE (when I tried Netscape, it failed to get the
>plugin).
>
> http://www.expedia.com/daily/fullcircle/australia/surround.hts
>
>I'd really like to see if we could implement some sort of viewer that would
>allow us to do a similar thing with a POV-Ray rendering ;)
>
>After all, the input image is probably just a large 360 degree strip made with
>one of those special cameras. With the appropriate rendering it should be
>possible to do the same thing with a plugin (perhaps not that one since it's
>likely to be Microsoft proprietary).
I case you do not know QuickTime VR, I have posted a sample QuickTime VR image
generated by POV-Ray. The POV-Ray scene has been in the official POV-Ray for Mac
distribution since POV-Ray 3.0! QuickTime is free and the (basic tools) to do this are
free as well. It does not only work on Macintosh, it works (very well!) on Windows
95,98 and NT 4. This is only a very small portion of the QuickTime technology. Note
that QuickTime is not only free, awailable on the major platforms, but all its formats
are *documented* (also some restricted by patents) and are *no* one way solution like
the MS Active X clones of this technology! And QuickTime is the base for the future
MPEG 4 (yes, thats no typo) standard. You can download QuickTime for free at
www.apple.com/quicktime/
The files are in povray.binaries.images. Note that for the high-res QuickTime VR movie
I used 756 * 2016 resolution (yes, QuickTime VR generates the panorama faster if a 90
degree rotated image is provided). The low res image is based on a 360*960 sized
image.
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: Tho### [at] csicom
I am a member of the POV-Ray Team.
Visit POV-Ray on the web: http://www.povray.org
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My brother sent me snowmoun.exe about a month ago. The 360x360 degree (all
over the place) view is great but the perspective warping is always an
undesirable effect of these panoramic scenes in my opinion, something without
pixel distortion would be tremendous to see too.
My casio digital camera came with Spin Panorama to create these and I've made
a few. Turns out it takes just 8 photos mended together, not 12 to 36 as was
mentioned. The lens being so wide angle on my camera that the perspective
warping is quite noticable (forget about trying anything even slightly up or
down from level) but I guess a narrower angled lens would help prevent it.
When I tried the same thing in Pov, I used an 8 frame sequence rotating the
camera set at the center then converted to jpg and used them in Spin Panorama.
Problem is there is a limited up/down, doesn't do this like the snowmoun.exe.
As Mike H. said, such a viewer would be good to have.
That "pantest", Ron Parker, is interesting because it has no perspective
warping that I could tell. Zoomed in a great deal perhaps?
Message <362E5ED9.C69712DF@aol.com>, Mike typed...
>
>This is the kind of thing that got me to start the thread in
povray.programming
>about creating a spherical camera for POV, which eventually I got to work
thanks
>to Chris Colefax. I posted the convoluted code there.
>
>The viewer I used to view the image was livepicture, formerly realspace.
It's the
>only one I know of that does a full 360 view of the image. The info about it
can
>be found at:
>
>http://www.livepicture.com/
>
>Unfortunately, they have pretty much trashed the realspace viewer by mixing
it
>with activex and java, and I get nothing but errors on their pages now. It
would
>be nice if someone were to create a public domain viewer that just did the
>panormas and skipped the browser thrashing java ect. I think that's what has
been
>keeping this kind of thing from becoming a standard. About the best thing I
can
>find now is Quicktime, but last I checked they still didn't have the full 360
>degrees version working. Then there's the overhead of every company wanting
you
>to pay to create the images, which you should could do for free if the viewer
>could just read in a standard jpeg, which is what they do anyway once they
see the
>proprietary extension on the file. Argggh.
>
>-Mike
>
>povray.org admin team wrote:
>
>> It will probably only work in IE (when I tried Netscape, it failed to get
the
>> plugin).
>>
>> http://www.expedia.com/daily/fullcircle/australia/surround.hts
>>
>> I'd really like to see if we could implement some sort of viewer that would
>> allow us to do a similar thing with a POV-Ray rendering ;)
>>
>> After all, the input image is probably just a large 360 degree strip made
with
>> one of those special cameras. With the appropriate rendering it should be
>> possible to do the same thing with a plugin (perhaps not that one since
it's
>> likely to be Microsoft proprietary).
>
>
>
--
omniVERSE: beyond the universe
http://members.aol.com/inversez/POVring.html
=Bob
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On 21 Oct 1998 20:36:15 -0500, ver### [at] aolcom (=Bob) wrote:
>That "pantest", Ron Parker, is interesting because it has no perspective
>warping that I could tell. Zoomed in a great deal perhaps?
Cylinder camera, type 1. Standard 'direction' vector. Like 2900
little images, all sewn together.
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oh, please don't do that. I've got a slow modem and a mac, anyway.
-mark r
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On 21 Oct 1998 20:36:15 -0500, ver### [at] aolcom (=Bob) wrote:
>My casio digital camera came with Spin Panorama to create these and I've made
>a few. Turns out it takes just 8 photos mended together, not 12 to 36 as was
>mentioned. The lens being so wide angle on my camera that the perspective
>warping is quite noticable (forget about trying anything even slightly up or
>down from level) but I guess a narrower angled lens would help prevent it.
For those that don't know, an actual panoramic camera *must* be kept
*level* to provide the most realistic looking images. These cameras
are *very* expensive, with many professional photographers opting to
merely lease one, unless they happen to specialize in panoramic
photography. My point is that even the best equipment used by the top
professional photographers exhibits the property of not letting one
tilt the lens up or down - it's simply the nature of things.
If one wants to show more area either above or below the horizon line,
this can be accomplished by using a camera with a shorter focal length
lens, which gives a greater vertical angle of view. This achieves the
effect that "tilting" the camera was intended to achieve, but without
the perspective distortion. There is more sky or tall buildings
showing in such an image, for example. The actual sizes of the objects
on the negative will be smaller, but after enlarging the negative for
printing, this isn't a problem.
As for your needing only 8 photos to make a circle, that may be true,
but the resulting panorama will not often be nearly as smooth as one
made with more photos. People use up to 36 images (maybe more?) to
minimiz/se the perspective distortion in these non-continous
panoramas. Objects very near the camera, and appearing in two
consecutive frames might not "line up" very well if the panorama is
being pieced together from a small number of individual frames. The
more frames that are used, the smaller that type of error becomes. A
proper continuous panoramic camera wouldn't have these errors at all,
since they contain the equivalent of an "infinite" number of narrow
vertical "frames".
My next comment has nothing to do with POV renderings of panoramas.
If you want an interesting image, try making a large 360 degree
panoramic print - roll the print into a large cylinder with the image
toward the inside - tape the ends of the cylinder together, aligning
the image at the seam - then stick your head inside the cylinder to
view it. This is true panorama viewing. :)
Later,
Glen Berry
Home -> http://www.ezwv.com/~mclilith/index.html
IMP -> http://www.algonet.se/~jhubert/MovieProject/index.html
To reply via personal email, remove the "X" from Xno### [at] ezwvcom
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It worked great on Netscape Communicator 4.5. Downloaded the Microsoft plug-in and
everything. At least Netscape is trying to make friends. :)
"povray.org admin team" wrote:
> It will probably only work in IE (when I tried Netscape, it failed to get the
> plugin).
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