[Sidefx-houdini-list] Killing cached sim particles

Andy Nicholas andy at andynicholas.com
Fri Oct 24 09:18:35 EDT 2008


> What about just using a Delete SOP with delete non-selected turned on
> and using the bounding volume options on it?

Not an option. That won't stop the particles becoming alive again when
their trajectory brings them back into the volume.

Anyway, that would only let me use a sphere or a box as a bounding volume.
I need to use something a little more complex than that ;-)



> What about just using a Delete SOP with delete non-selected turned on
> and using the bounding volume options on it?
>
> -Edward
>
> Andy Nicholas wrote:
>> Hi,
>> Forgive the torrent of questions from me at the moment. I've got a tough
>> simulation job on at the moment and it's turning out to be a great
>> learning experience :-)
>>
>> Anyway, my question... I've cached some particles into some .sim files
>> and
>> I've then loaded them back in to an empty DOP network using a File DOP.
>> What I'd like to do is to delete particles that venture outside a
>> specified volume, but delete them permanently so that when their
>> original
>> trajectory comes back into the volume they don't reappear.
>>
>> I've tried feeding the File DOP into a popsolver and then putting it
>> through a Kill POP in there, but no joy. I'm guessing there's a trick to
>> this, but I don't know where to start looking.
>>
>> Any pointers on this would be gratefully received.
>>
>> Thanks
>>
>> Andy
>>
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>
>





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