I do hope POV decides whether or not it will be able to successfully
append to the png file before starting calculations on all these
photons...it would suck to sit here for an hour or two only to find
out that it can't continue trace...

-- 
Tim Cook
http://home.bellsouth.net/p/PWP-empyrean

-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------

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Why not use BMP or TGA instead, and convert to PNG later?

--
Tim Nikias v2.0
Homepage: http://www.digitaltwilight.de/no_lights
Email: Tim### [at] gmxde

> I do hope POV decides whether or not it will be able to successfully
> append to the png file before starting calculations on all these
> photons...it would suck to sit here for an hour or two only to find
> out that it can't continue trace...
>
> --
> Tim Cook
> http://home.bellsouth.net/p/PWP-empyrean
>
> -----BEGIN GEEK CODE BLOCK-----
> Version: 3.12
> GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
> N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
> PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
> D++(---) G(++) e*>++ h+ !r--- !y--
> ------END GEEK CODE BLOCK------
>

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"Timothy R. Cook" wrote:
> 
> I do hope POV decides whether or not it will be able to successfully
> append to the png file before starting calculations on all these
> photons...it would suck to sit here for an hour or two only to find
> out that it can't continue trace...

1) You can save photon data to a file, no need to calculate them two times
in a continued trace.  

2) POV-Ray does not 'decide' whether it is able to continue a partial
image file, it simply does so if you specify the corresponding option and
the image file is not broken.

3) If you are unsure if your partial image is broken you can do a test
render without photons.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______

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