Well I do use ini files in the generation of stereo pairs, but have not
tried to automate using an application for post rendering cropping.
Usually I like to look at the image after it is rendered and decide on
where to place the stereo window. There are stereo image editing
programs for setting the stereo window using a GUI. I was addressing
Vic's call for stereo rendering without post-processing and the need
for high precision.

I'm intrigued by Ib Rasmussen's idea (see the "moving the vanishing
point" thread) of using  Start_Column and End_Column
parameters to effectively crop the image when rendered. It would
simplify the process considerably and save time. That may
prove more satisfactory to people like me who find the application
of camera vector shearing algorithms too confusing when applied
to existing POV scenes that don't use "real world" metrics. Although,
the placement of the stereo window would need to be decided upon
before rendering.

Harolddd



"ingo" <ing### [at] homenl> wrote in message
news:Xns### [at] povrayorg...
> in news:3cd18481$1@news.povray.org Harold Baize wrote:
>
> > Great precision is not usually
> > required to avoid window violation.
> >
>
> In that case why don't you just render the stereo pair from an ini-file
> and use the post-frame command to starts a bat file that starts an
> application that crops the images (nconvert, image-magick, netpbm). Use
> the stereo include file to write the bat-file, depending on wether you
> render the right or left image and set the amount to be chopped off.
>
> Ingo

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