I'm learning along with the video:
"The Secret Language of Houdini from SideFX Houdini on Vimeo"
Not doing too badly - some of the details seem to have changed...
I'm not sure if the video shows a different version of Houdini? (I'm on 18.5)
in the video at timestamp 09:26
there is the following expression, used to rotate the ball as it rolls...
I have tried loads of things and googled but cannot get this to work.
I have also searched the forum.
Any tips/advice welcome - Thank you in advance.