Hi there!

When I recently tried to use some of the POVRay options for partial 
rendering output (-SC, -EC, -SR, -ER), I experienced a strange 
phenomenon - the selected rectangle was rendered correctly, but was 
shifted to the upper edge of the (mainly black) output image (horizontal 
position seemed ok). Furthermore, when trying to read a PNG thus created 
using Java's imageio package, the program exited reporting an Exception. 
(I apologize for not having written down the exact error message... 
something like "ImageFormatException in PNGInputStream"...sorry!)

I wonder if anyone else has realized this or a similar issue. Or perhaps 
somebody even knows how to circumvent this problem...?

Regards -

	Torsten

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