P3D RE: P3D Re: lenticular query

[Gabriel Jacob <gjacob@xxxxxxxxxxx>]

Paul Talbot writes,

>First a question: what do you mean by "lenticular transparency?"

I wonder if this refers to images printed directly on lenticular
material without any paper backing?

>Second a general observation: two images are generally not
>enough for a reasonable lenticular.

>What you are asking for may not be easy, affordable, or
>effective.

Harry Richards was selling some last year in Richmond that
were made from Realist 50s slides (i.e. made from 2 images).
They were pretty good but the "sweet spots" were not very
continuos. If you didn't hold it properly it would flip from left to
right. When you did hold it just right, the 3-D was just as
effective as the muli-image lenticulars. The main reason they
use more images to make lenticulars is so that the image won't flip.
The lents were made by someone in Ontario. I don't where or
how he made them. It would be interesting to find out.

As to the other inquiry about lenticular software, there seems
to be at least three that I ran into, but all were very expensive
and one was available in only Chinese. I apologize in advance
that this is second hand information and I haven't been to
China. :-)

Personally the hacker way would be to just use 3-D programs
that do interlace images for LCS glasses. Just rotate the
images 90 degrees before interlacing them. Print then rotate
them back. Simple! Well not quite! ;-) There are other
problems such as matching the pitch of the lenticular
material to the printout. 

Gabriel


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