"Random_Kevin" <nomail@nomail> wrote:
> "scott" <sco### [at] scottcom> wrote:
> > > Yep. I went there.
> >
> > Funny how 3D is finally taking off now, even though the technology has been
> > there for almost a decade now.  Seems like the media have finally got hold
> > of it and all manufacturers are responding now.
> >
> > > I'd like to take my favorite POV/MegaPOV scenes and
> > > animations and re-render them to use these classes.
> >
> > http://www.nvidia.com/object/3D_Vision_Photo_Viewer.html
> >
> > Can you use this program somehow to import the left and right eye images?
> > (It seems like you might have to paste them next to each other first?).
> >
> > In POV simply render your scene twice, one with your camera in the left eye
> > position, and one in the right eye.  Have fun experimenting with the camera
> > separation and angles!
>
> Thanks Scott,
>
> Once I have the left and right images, I can get them pulled up in the tools
> that came with the glasses. I'm curious to know what people have done in the
> past or where a good starting point might be. My render time isn't much of the
> problem, it's the experimenting time that I have little of.
>
> Thanks,
> Kevin

I'm a stereo photographer and have mounted hundreds of 3d transparencies. There
is a trick, which can be easily duplicated in Povray. If you frame the image
with both views aimed at infinity, it will almost always be visually disturbing.
The idea is to place your subjects "behind" the frame. It is extremely important
that no objects (especially at the edge of the frame) appear in front of the
frame. You can move the apparent position of the frame closer and further away
by moving them slightly together and apart.

The way you should do this in Povray, is to move the camera left and right by
the interocular distance (about 7cm.) and use the "look_at" vector to aim the
camera at a point just in front of the closest subject. This will create the
most natural 3d view.

Ken

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