There are several places where MegaPov prints the same line many times
with a differing value. One example is "Sorting photons..." and another
is "Applying 'soft glow' effect".
  The problem is that it prints a newline ("\n") after each line.
  In Windows this might not be a problem, but in unix it is. It's not nice
to get the console window full of that same line.
  Could it be possible to output a "\r" instead of a "\n" in these lines?
A "\n" could be outputted after the last line if necessary.
  This will make it output nicely to the same line.
  It looks better and saves a bit of resources.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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