 | | | particle alignment | particle alignment 2004-07-05 - By David Barosin
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Thanks Kim, Ahmidou, and Felix you are all 'the man' ;)
Felix that's a nice solution. I really appreciate it.
I think I figured out the caching part. I just duplicated the cloud and got
rid of the scripted Op and deforms. I then added a simple event script to
it.
''''''''''''''''''''''''''''''''''
''this should be set to run on every frame with the script context on Per
Cloud
selectObj "cloud"
set oObj = selection(0)
set oPart = oObj.ActivePrimitive.Particles
inParticleCollection.PositionArray = oPart.PositionArray
inParticleCollection.RotationArray = oPart.RotationArray
'''''''''''''''''''''''''''''''''''''
This seemed to do the trick to let me cache it to disk and load it back in.
The selectObj part of the script slows it down a bit but I don't know a way
around it.
Regards,
-Dave
-- -- Original Message -- --
From: "Felix Gebhardt" <gebhardt@(protected)>
To: <XSI@(protected)>
Sent: Sunday, July 04, 2004 7:39 AM
Subject: Re: particle alignment
> Hi David,
>
> I've put the scene here
> http://www.sukio.de/resources/PostDeformRotationFix.zip for you to have a
> look at it. This OP relies on the last evaluated frame, so if you want to
> render it on multiple machines it's not going to work correctly. You might
> try to copy over and cache the result to a second cloud that has a bigger
or
> equal particle count though.
>
> I have seen Dave's version in the Siggraph03 material. It puts the static
> array into the OP's user data so you could have multiple clouds without
> changing the variable name of the tempcache. Maybe you could ask where
they
> did put the FX_Seminar Data.
>
> Good luck with it,
> Felix
>
>
>
> Ahmidou wrote:
> > Hi
> > Felix did it , maybe he can give you some directions...see there:
> > http://www.sukio.de/gallery/RotFix.htm
> >
> >
> >
> > David Barosin wrote:
> >
> >> Has anyone figured out a way to get particles to realign their
> >> orientation after being deformed.
> >>
> >> You can check 'align with velocity' which is good till the particle
> >> goes through a deformation. It would be great to have the particle
> >> re-calculate velocity after all deforms (or have a separate deformed
> >> velocity) to use for particle alignment.
> >>
> >
> >
> >
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