Forums Technical Discussion How to do this in pop wrangle

How to do this in pop wrangle

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blove
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Joined: May 2012
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I created a new attribute in old pops by attribute node,named “catch_frame”.
I have setted the default value to -1.
And I can set it's value by an expression if($CATCH_FRAME == -1,$F,$CATCH_FRAME).

everything is OK!

I'd like to know:

How to do this in the new pops,by pop wrangle?

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trttttt.jpg (157.1 KB)
Catch_Frame.hip (219.0 KB)

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tamte
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Joined: July 2007
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here is one of the ways
basically in wrangle you can specify the default value of the attribute using:
type @name = constant_default_value;
so in your case something like:
float @catch_frame = -1;
if (f@catch_frame==-1) f@catch_frame = @Frame;
if you run it only on group you are interested in, it will mark the frame when the particle entered the group

Attachments:
catch_frame_fix.hip (224.3 KB)

Tomas Slancik
FX Supervisor
Method Studios, NY
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blove
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24 posts
Joined: May 2012
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tamte
here is one of the ways
basically in wrangle you can specify the default value of the attribute using:
type @name = constant_default_value;
so in your case something like:
float @catch_frame = -1;
if (f@catch_frame==-1) f@catch_frame = @Frame;
if you run it only on group you are interested in, it will mark the frame when the particle entered the group

Thanks!

Got it!
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