Ron Parker wrote in message <37aa2014.71093169@news.povray.org>...
>
>Ah.  None of this is what I think of when I think of the term "depth
>map."  To me, a depth map is a greyscale image you use to make SIRDS
>or height fields.  What you're looking for is significantly more
>complicated for many reasons, not the least of which is the POV
>architecture's dependency on rendering things in order, left to right
>and top to bottom.  That's because it writes the image to the disk as
>it completes it, rather than keeping the whole thing in memory.



Well, it's good to find these things out.
I'm not advocating a wholesale rewrite of POV
by any means (it's not practical), but I
think some surgical changes could be useful.
What I could do is try a private patch, and
see how it goes, and make the result
available for evaluation. I'll preserve
the write-during-render behavior; thanks
for mentioning that.


Ray Gardener
Daylon Graphics Ltd.
http://www.daylongraphics.com/
"Heightfield editing perfected"

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