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Alain <ele### [at] netscape net> wrote:
> Nekar Xenos nous apporta ses lumieres en ce 2007/11/19 03:36:
> > Here's a different approach to stereoscopic imaging without having to parse
> > twice or use the clock setting. I don't know enough about lenses but I think
> > someone might be able to tweak this to work correctly. I used a repeated
> > spherical camera normal to get 2 images.
>
> > camera {
> > right x*image_width/image_height
> > location <0.0, 0.5, -4.0>
> > look_at z
> >
> > normal {spherical /*scale <10,10,01>*/ translate <.5,.5,-.5> //
> > pattern modifier
> > warp {
> > repeat x // repeat direction
> > }
> > translate -.5*y
> > scale <.7,.7,10>
> > //
> > }
> >
> > }
> >
> > //-----------------------------------------------------------------
> >
> Try with this camera:
>
> camera {
> right x*image_width/image_height/3 //Otherwise, the sphere is
> //stretched verticaly, a lot!
> location <0.0, 0.5, -4.0>
> look_at z
>
> normal {cylindrical 0.5/*scale <10,10,01>*/ translate <.5,.5,-.5>
> //pattern modifier
> warp {
> repeat x // repeat direction
> }
> translate -.5*y
> scale <.7,.7,10>
> //
> }
> angle 60 // to keep the sphere images from drifting apart
> }
>
> This camera get rid of the spherical distortion.
> Good for parallel vewing.
>
> --
> Alain
> -------------------------------------------------
> Grandchildren are God's reward for not killing your own.
I can't make any useful suggestions, I just complain ;)
In the upper picture
Alains' version seems to stretch the spheres toward the center
( > | < )
the spheres are curves on the outside edges, but stretched toward the center.
In the lower picture
Nekar's version seems to compress the sphere from the top
Leef_me
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Download 'stereo1&2.jpg' (142 KB)
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