Particle cache and XSIBatchserver 2005-06-23 - By kim aldis
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Not really looked closely at it. Sorry.
> -- --Original Message-- --
> From: owner-xsi@(protected)
> [mailto:owner-xsi@(protected)] On Behalf Of Eric Lampi
> Sent: 23 June 2005 17:19
> To: XSI@(protected)
> Subject: RE: Particle cache and XSIBatchserver
>
> Kim,
>
> Have you had any success with "load from file"?
>
> I've tried to use it, but I never quite understood how to get
> the material attributes to work properly.
>
> It just plays back the particle points with seemingly no way
> to get at it's Ptype material settings. Am I just missing something?
>
> E
>
> --- kim aldis <kim@(protected)> wrote:
>
> > they're kind of odd, caches. I always found they'd rebuild cache at
> > rendertime regardless of the state and if I write protected
> the files
> > it'd just fall over. I had bloody awful problems when I was messing
> > with this but I've a feeling it was something I was doing that was
> > messing the cache rebuild. Using scripted events or doing
> something in
> > the scripted events.
> >
> > Doing something recently and rendering not using batchserve and not
> > using scripted events, I had problems with the cache
> sometimes, for no
> > apparent reason, deciding it needed rebuilding. If that
> happens then
> > wrong results will happen. Mostly, I think, because you've got
> > multiple machines all fighting for the same files.
> Corruption occurs,
> > no doubt about it. I found myself doing a lot of
> re-rendering on odd
> > passes, even when I'd vedry carefully precached and tested
> everything.
> >
> > There's two ways to go:
> >
> > *
> >
> > let all the machines see the same cache that's
> built prior to
> > rendertime. Like I said above, there could - and probably will - be
> > problems.
> > *
> >
> > Alternatively set the cache path to something like c:\temp\foo.
> > C:/temp needs to exist on all the slaves. This way you'll have the
> > cache recalculated on all the slaves at rendertime but they will be
> > correct. In terms of the time it takes to render the
> frames the cache
> > calculation time isn't often that great. Probably safest to
> clean the
> > cache out before re-rendering, just in case.
> >
> > The other thing you need to be aware of is that it's
> possible to have
> > particle caches named the same in any given scene and that
> it's highly
> > likely there'll be identical caches across scenes in the
> same project.
> > They fixed the thing - I think - where all particle cache
> files on all
> > particle clouds were created with identical names in a
> scene but now
> > they get named with sequential names; particle1, particle2, etc.
> > Manging particle cache
> > filenames can rapidly turn ugly fast.
> >
> > Pretty much most of this applies to hair caching too.
> >
> >
> > __ __
> >
> > From: owner-xsi@(protected)
> > [mailto:owner-xsi@(protected)] On Behalf Of Marc-Andre Carbonneau
> > Sent: 23 June 2005 12:56
> > To: XSI@(protected)
> > Subject: RE: Particle cache and XSIBatchserver
> >
> >
> >
> > Once cached, make you ptp files read-only
> >
> > I believe it works that way. Otherwise, you'll need to render
> > everything on one machine or several machines with
> different segment
> > of your timeline.(use a cloud seed so they are all the same)
> >
> >
> >
> >
> >
> >
> > __ __
> >
> >
> > From: owner-xsi@(protected)
> > [mailto:owner-xsi@(protected)] On Behalf Of kim aldis
> > Sent: Thursday, June 23, 2005 5:51 AM
> > To: XSI@(protected)
> > Subject: RE: Particle cache and XSIBatchserver
> >
> >
> >
> > As far as I'm aware there's no reason why it shouldn't
> work. Can you
> > be sure that the path to the cache files is valid on all
> your slaves?
> >
> >
> >
> >
> >
> >
> >
> >
> > __ __
> >
> >
> > From: owner-xsi@(protected)
> > [mailto:owner-xsi@(protected)] On Behalf Of guillaume laforge
> > Sent: 23 June 2005 10:42
> > To: XSI@(protected)
> > Subject: Particle cache and XSIBatchserver
> >
> > Hi list,
> >
> > I've seen this topic several times on the list but this time we got
> > the pb in the studio I work actually.
> >
> > We can't render particules simulation with standard caching. Only
> > standard no caching works with batchserve.
> > I'm not a particle specialist and I don't understand why ?
> >
> > Is it a limitation ?
> >
> > Cheers,
> >
> > Guillaume Laforge
> >
> >
>
>
> Freelance 3-D Animator, F/X Artist, Particle Man
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