granular caching... an expensive but 100% customisable solution is to
create your own particle exporter and loader... dump all the particle
data into an md5 file with an include mechanism to link to other md5
files containing other data such as particle colour, velocity, speed,
etc, so if you change 1 element in your sim you don't need to then go
and redump all the other data (you could also control the level of
granularity) and all your loader has to do is to parse those files and
place particles back in place and feed them that data back... or
ultimately write you own shaders that do that so you can bypass the
entire loading and replacing phase...
A bit of dev until Soft fixes this issue! ;)
On 10/15/05, brad <brad(at)cg-soup.com> wrote:
> Yes, kind of silly I agree. I guess it depends on the format of your caching. If you can write specific datasets to their own locations without having to rewrite everything else, a la XML, then it would make sense to work out a way to do selective caching. Otherwise, you'd have to rebuild the entire datastruct each time.
>
> Glad I don't design these things. :-)
>
> -Brad
>
> > -------Original Message-------
> > I guess, but then to do all the expensive calculations too?
> >
> > > -----Original Message-----
> > > From: owner-xsi(at)Softimage.COM
> > > [mailto:owner-xsi(at)Softimage.COM] On Behalf Of brad
> > > Sent: 15-October-2005 02:36
> > > To: XSI(at)Softimage.COM
> > > Subject: RE: What is the purpose of the Particle Player?
> > >
> > > Shouldn't there be a cache if your color is evolving over time?
> > >
> > > >-------Original Message-------
> > > >There's also the peversity of the re-cache when you're
> > > messing with colours.
> > > >You change a colour parameter, xsi rebuilds the cache but doesn't
> > > > take thecolour change into account until you jog a frame
> > > and force a
> > > > re-cache. But,ironically, there shouldn't be a need to
> > > calculate a
> > > > cache on a colourchange.
> > > >
> > > >> -----Original Message-----
> > > >> From: owner-xsi(at)Softimage.COM
> > > >> [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
> > > > dbarosin(at)optonline.net> Sent: 14-October-2005 20:58> To:
> > > > XSI(at)Softimage.COM> Subject: Re: What is the purpose of
> > > the Particle
> > > > Player?
> > > >>
> > > >> also I notice that particles want to re cache after a simple>
> > > > render region.Doesn't make much sense but this could>
> > > somehow be
> > > > related to why particles recache on arender farm>> -----
> > > > Original Message -----> From: brad <brad(at)cg-soup.com>> Date:
> > > > Friday, October 14, 2005 3:10 pm> Subject: Re: What is
> > > the purpose
> > > > of the Particle Player?
> > > >>
> > > >> > I do this as well, but being at the first frame has no
> > > effect on
> > > > > > whether XSI "wants" to re-cache or not, it just
> > > prevents you from
> > > > > > overwriting any later frames.
> > > >> >
> > > >> > If XSI thinks the sim is dirty and needs recaching,
> > > then> each
> > > > time the> > scene loads in on the render farm, it must cache the
> > > > entire> scene from> > the start frame to the current frame.
> > > > Multiple slaves doing this at> > the same time can result in
> > > > potential overwrite conflicts and other> > problems on the farm.
> > > >> >
> > > >> > -Brad
> > > >> >
> > > >> >
> > > >> > >-------Original Message-------> > >Brad I usually step
> > > > back to the first frame of the> scene before I> > >
> > > save so that I
> > > > can avoid that fromhappening.
> > > >> > >
> > > >> > >E
> > > >> > >
> > > >> > >--- brad <brad(at)cg-soup.com> wrote:
> > > >> > >
> > > >> > >> Is it supposed to be able to render anything?
> > > >> > >>
> > > >> > >> I'm in one of those situations where XSI wants to>>
> > > > re-cache my> > > particle sim every time I load the> scene, and
> > > > I'm looking for> > > workarounds.
> > > >> > >>
> > > >> > >> Why can't we just have options for write cache/read>>
> > > > cache on> > > our sims?
> > > >> > >>
> > > >> > >> -Brad
> > > >> > >> ---
> > > >> > >> Unsubscribe? Mail Majordomo(at)Softimage.COM with the>>
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> > > >> > >>
> > > >> > >
> > > >> > >
> > > >> > >Freelance 3-D Animator, F/X Artist, Particle Man>
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