[dorkbotpdx-blabber] Re: anagyph dec 20 2007

[Anselm Hook]

I went to the 3D Museum yesterday which is in NW Portland; they have
simply amazing examples; far better than anything you'll see online.
In particular there is a collection of cactuses / cactii? a prickle of
cactus?  anyway - definately worth seeing.

They also have a 15 minute short movie in 3d based on a sci fi book; also good.

In any case then I just googled how to do it.

I think the first approach was pretty sucky; I want to have both
lenses actually focus on the target in question....  Although the
examples and tutorials on the net don't really discuss this point; it
does seem more reasonable that the camera focal target should not
change...  in the anaglyph of us you can see that the parallax is
shifting sideways; and thats probably not quite right.

Also, I think perhaps for computer displays there is some quality of
light; possibly a lack of blue? { since the human eye is more
sensitive to red the hardware designers perhaps cheat on blue?  I've
certainly done the same in video games I've written }.  A better way
would probably be to use left/right shutter glasses for dealing with a
computer display in any case.  That's why I also tried the projector;
I thought it might have a nicer quality of light in some way...  At
the 3D museum they have polarized lenses; the movie is projected
through two projectors using polarization...

 - a




On Dec 21, 2007 7:40 AM, mark gross <markgross at thegnar.org> wrote:
> This is way cool.
>
> ImageMagick is cool.  At the next event I'd like to hear about any
> lessons learned using it.
>
> --mgross
>
>
>
> On Thu, Dec 20, 2007 at 08:19:54PM -0800, Anselm Hook wrote:
> > whoops the image was too big for the list...  you can see it on flickr.
> >
> >  -a
> >
> > On Dec 20, 2007 8:01 PM, Anselm Hook <anselm at gmail.com> wrote:
> > > see enclosed image.  also, see here:
> > >
> > >   http://flickr.com/photos/anselmhook/2126340942/
> > >
> > > (tagged with dorkbotpdx)
> > >
> > > hopefully this won't crush your mail readerz
> > >
> > > it is a 3d red/blue anaglyph of our event that's going on right now
> > > thursday dec 20th at oh 7:54 pm - with a pair of sd1000's that i
> > > borrowed today:
> > >
> > >   http://flickr.com/photos/anselmhook/2126334740/
> > >
> > > and then went to ace hardware and picked up a mounting bracket that
> > > exactly fit; and had the dude there help me find exactly the right
> > > screw mount ... and then drilled out and mounted...
> > >
> > > i built this image by the following shell incantations
> > >
> > >   convert left_original.jpg -colorspace gray left.png
> > >  ... same for right...
> > >   composite -stereo left.png rite.png pdxstupcrew2.mpg
> > >
> > >  - a
> > >
> > _______________________________________________
> > dorkbotpdx-blabber mailing list
> > dorkbotpdx-blabber at dorkbot.org
> > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.6 (GNU/Linux)
>
> iD8DBQFHa95nhK5OsmQOmSARArTZAKCPwR8CihU8kfy7TPeJ7hFxW82xbwCePJrn
> TdTQieK91bUavJyxNddFRwI=
> =njDy
> -----END PGP SIGNATURE-----
>
>