All you need to do is pluck an axis out of the transform and use that as your 
direction vector.  You can do that with the matrix to 3D vector converters.

Matt



From: softimage-boun...@listproc.autodesk.com 
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Sam
Sent: Friday, March 29, 2013 6:55 PM
To: softimage@listproc.autodesk.com
Subject: set raycast direction with a Null?

I have a null I'm using to raycast onto a mesh and it working pretty good, but 
I want to be able to adjust the direction by rotating the null and I can't seem 
to get this to work. There is a direction to rotation node, but there doesn't 
seem to be a rotation to direction node. Any help is appreciated.

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