[Bf-funboard] Render frame ranges/filenames

[Doug Ollivier]

My preference (as a very short length animator) is to have short 
filenames, 4 digits gives 6.7 minutes, 5 digits gives 67 minutes (at 
25fps).  Although to be honest its more of an inconvenience for you to 
have to change name lengths than it is for people like me to have long 
filenames

---- Idea 1

Could the length be defined in the output pictures box in a format like 
"directory/Name######" for power users?

---- Idea 2

It may not be an idea to solve the problem in relation to file systems 
ordering, but the following might be able to work internally to blender. 
(EXIF for example)

Do image formats have fields for comments that could be saved to/ read 
from in Blender?  I.e. we could save a whole pile of info in there.
Frame number (longer than filename number)
Filename of the Blend file it was rendered from
Scene name...
What pass it is (Z, Normal, Col.....)
Type of transparency it is Sky, Key, Premul (for better compositing)

This info could be used to order frames in the Sequencer perhaps?

-----




Campbell Barton wrote:
> Id like to change the default number of frames blender writes to be
> always 6 - which fits with blenders max frame of 300000.
>
> Read on for the rationale...
>
> when rendering more then 9999 frames some problems arise.
> Blender uses 4 numbers when the end frame is less then 9999. Which is
> fine in cases where you just want to render out everything at once.
> But if you want to re-render smaller frame ranges, the numbers in each
> frame dont match so you end up with (final0001.dpx and final00001.dpx)
> and a whole bunch need batch renaming.
>
> If the number of files is really big it gets less nice, I found over
> 10,000 files crash krename for instance (a bug in krename ofcourse),
> but it takes a long time to display those files in any file manager
> and generally its not nice to have to deal with especially early in
> the morning - see.
> http://peach.blender.org/index.php/woosh-the-deadline-passed-or-how-everything-that-can-go-wrong-does/
>
> Luckily for for final0001.dpx we used bash-fu to do the renaming for us.
>
> for i in final????.dpx; do j=`echo $i | sed 's/final/final0/g'`; mv
> "$i" "$j"; done
>
> On windows youd probably have to scour the net for some shareware (or
> get cygwin if your know unix well enough), but either way these are
> not things you want to worry about at the last minute.
>
> The extra 2 chars on every name isnt too bad now almost nobody relies
> on 8.3 letter names anymore.
> Personally Id make it default, though it could be an option also.
>
> Any opinions on this, reason not to change this?
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