Dear PovRay'ers

It has been a good 5 or more years since I've used
POVRay and I'm enjoying digging in to it again.
What I'm trying to do is create an animation of a
medical device operating in the throat, from the perspective
of the tiny camera in the device.

Does anyone have any information on camera settins that would
be appropriate?  I've got a fisheye with an angle of 120
and that looks a lot like real images from similar devices
but I thought I would see if anyone out there has allready been down
this path.

Thanks!!!!!!

Eric

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A fisheye lens, in my opinion, would be best in this situation. An 
annoying factor when using the fisheye lens is the circular black space 
around the image. You can get rid of that by putting this into your 
camera statement:

right x*.5*1.33 up y*.5

If you want the size dimensions of your image to be equal you can do 
that by adding this to the ini settings:

+w300 +h300

If you do that, however, you'll have to alter the afore-mentioned camera 
statement settings to this:

right x*.7 up y*.7

Happy POV-ing!


-- 
Samuel Benge

stb### [at] hotmailcom

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news:3F8### [at] hotmailcom...
> A fisheye lens, in my opinion, would be best in this situation. An
> annoying factor when using the fisheye lens is the circular black space
> around the image.

This can be avoided using the ultra_wide_angle projection, that is "somewhat
similar to the fisheye but projects the image onto a rectangle instead of a
circle".

G.


-- 
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http://www.oyonale.com
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- POV-Ray and Poser computer images
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Gilles Tran wrote:
> "Samuel Benge" wrote:
>> A fisheye lens, in my opinion, would be best in
>> this situation. An annoying factor when using
>> the fisheye lens is the circular black space
>> around the image.
>
> This can be avoided using the ultra_wide_angle
> projection, that is "somewhat similar to the
> fisheye but projects the image onto a rectangle
> instead of a circle".

Though they may look somewhat similar to the untrained eye at relatively
shallow angles, they really are very different. If you try to use a very
wide angle, like several times 360 degrees, then you'll see that the two
projections are completely different in structure from each other. I
doubt that ultra_wide_angle corresponds to anything in the real world. I
would suggest using the fisheye camera instead, with the trick Samuel
suggested.

(By the way, my recent Tunnel Ride animation in p.b.a was made with such
a fisheye camera.)

Rune
--
3D images and anims, include files, tutorials and more:
rune|vision:  http://runevision.com **updated Sep 28**
POV-Ray Ring: http://webring.povray.co.uk

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