[Bf-committers] shrinking multires memory usage

[Kenneth Styrberg]

Hi, I tried it out, and at level 9 with default cube all is well until I 
go into edit mode and try to move vertices around it crashes under Win 
XP (2GB ram).

Error message in console: "Calloc returns nill: len=70779240 in 
TransObData(Mesh EditMode), total 791291064


Tom M wrote:
> is there anyone willing to look at multires memory usage?
>
> Currently trying to go to 1.6 million faces crashes on Windows XP,
> whereas on OS X I can reach 1.6 million but it can easily end up
> exceeding the 2 GB limit (actual limit appears to be somewhat higher0
> for a process and crash; whereas for subsurf modifier i can reach 6
> million faces on Windows XP.  Obviously multires has to store a great
> deal more information than subsurf.
>
> (Note that I'm on puny hardware - 464 MB ram on windows, and 768 MB
> for OS X, so I'm swapping heavily getting that high).
>
> i suspect that the savings of even a short per face might be enough
> for 1.6 million faces to survive on windows and OS X.
>
> Are there any 64 bit users who have seen how high a polycount they can
> get with multires?
>
> LetterRip
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