[Sidefx-houdini-list] Reading the particle life in chops

Garman Lists garman_lists at sbcglobal.net
Sat Apr 14 00:10:54 EDT 2007


Thanks guys!

-Garman


Peter Bowmar wrote:
> Don't forget Sort By Attribute and use ID so if particles die or are
> born there isn't any popping...
>
> On 13/04/07, Pablo Giménez <pablogipi at gmail.com> wrote:
>> 2007/4/13, Garman Lists <garman_lists at sbcglobal.net>:
>> >
>> >
>> > Any tips on reading particle life attribute in chops?
>>
>>
>> Along the simulation to modify it in runtime, or after the sim?
>> To read after the sim you can use Geometry CHOP, reading a bgeo 
>> sequence,
>> and read the life attribute, put it into two channels and with a 
>> Math  get
>> the life ratio.
>>  To read during the simulation, now cames to my mind some solution, is a
>> little but I suppose it could work.
>> Create a spare channel in the source POP, or a Property, it doesn't 
>> matter,
>> or maybe a Null will be cleaner.
>> And in the Spare channel use $LIFE as it value. The embeed a CHOP 
>> network
>> and into it use a Fetch CHOP to read the spare channel you have created.
>> I think this could work, but I haven't tried it :)
>> Hope this helps
>>
>> -Garman
>> >
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>> >
>>
>>
>>
>> -- 
>>
>> Un saludo
>> Best Regards
>> Pablo Giménez
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>>
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