Tom A. wrote:
> I rendered a picture (in windows POV) at 800x600.  I then used the
> preview to find a subset of the picture I want to animate.  I set up the
> start_column, end_column, start_row, end_row fine.  But the subset is
> rendering in the middle of an 800x600 black picture.  
> 
> Is there any easy way to get it to produce just the part of the picture
> I'm interested in?
> 
IIRC, there is no "easy" way, without doing vector math with
the camera vectors. Maybe someone wrote a macro for this?

Is your subset symmetrical to the middle of the image?
Then you could try to play with the "direction" vector
(make it longer to get smaller region) or with the "angle"
keyword.

Hermann Vosseler

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