news:web.441f2e9badad9cf87d7333b30@news.povray.org...
> I was rendering a huge image (for print purposes), when my computer
crashed.
> I was at approximately 85% through a 5000 line render (after more than a
> day).

more than a day!  ooooo thats sooo loooong ;-)

>
> How would I tell POVray to render the bottm 20% or so only? Then I can
> probably join them up in Photoshop. Is there a simple toolbar command-line
> option?
>

At first, as your computer crashed, try to save your top portion under
another name.(not rename but save... you must keep the original file
unchanged)
Then  try render with +c in the command line,
This option reads in the previously generated output file, displays the
partial image rendered so far, then proceeds with the ray-tracing.
If it starts where it stopped, it's ok. let run

If POV can't find a proper line to begin, it will rerun from the 1st line
(and erase the previous render file, that's the reason to backup it). Stop
the render.
Open your backup output file in an image editor to find how many lines were
rendered. (say  5000 lines were rendered)
add 1 to 5000 (not the hardest part)
re-render with +sr5001 in the command line
join your 2 portions


HTH
Marc

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