RE: Up vector on particles flowing on a path

2017-04-27 Thread Sven Constable
There is also emtools from Eric Mootz that contains a compound for driving
particle orientation with lots of options. IIRC called Align Orientation or
similar.

Sven

-Original Message-
From: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Kris Rivel
Sent: Thursday, April 27, 2017 12:37 AM
To: softimage@listproc.autodesk.com
Subject: Up vector on particles flowing on a path

I'm sure this has come up but how can I get a proper up vector on particles
flowing along a path? The align on velocity in the flow on path node
overrides anything else. I want them to align on velocity/direction but also
stand straight up pointing at Y. 

Kris
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Re: Up vector on particles flowing on a path

2017-04-27 Thread Matt Lind
A few cross products:

direction vector x global Y axis = binormal
binormal x direction = your desired up vector

order is important.  Also normalize the resulting vector to be a unit vector 
to make other downstream operations predictable.


Matt





Date: Wed, 26 Apr 2017 18:37:03 -0400
From: Kris Rivel <krisri...@gmail.com>
Subject: Up vector on particles flowing on a path
To: softimage@listproc.autodesk.com

I'm sure this has come up but how can I get a proper up vector on particles 
flowing along a path? The align on velocity in the flow on path node 
overrides anything else. I want them to align on velocity/direction but also 
stand straight up pointing at Y.

Kris


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Up vector on particles flowing on a path

2017-04-26 Thread Kris Rivel
I'm sure this has come up but how can I get a proper up vector on particles 
flowing along a path? The align on velocity in the flow on path node overrides 
anything else. I want them to align on velocity/direction but also stand 
straight up pointing at Y. 

Kris
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To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with 
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