 | | | particle alignment | particle alignment 2004-07-05 - By Felix Gebhardt
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Hi David, glad it helped.
For getting the cloud reference you could do:
set oCloud = ActiveSceneRoot.findchild("cloud")
set oPart = oCloud.ActivePrimitive.Particles
Should be a lot faster.
Cheers,
Felix
David Barosin wrote:
> 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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