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 ------ Softimage Mailing List. To unsubscribe, send a mail to softimage-requ...@listproc.autodesk.com with "unsubscribe" in the subject, and reply to confirm.
