Animation issue !!!

#1

Hi guys,

i have an animation to do and i’m stuck on it.
Here what i have :
A star shape rotating really fast. The rotation of it came from a wire paramater from gears before this shape. On this shape i want a dummy or anything following the contour of the shape but with 1 axis constraint. In fact, the dummy needs to move up and down on Y axis only following just the contour.

Joining max file for example.
software : 3dsmax 2014

Thanks in advance guys.

#2

You should look into script controllers and intersectRay function.
Basically what you would do is shoot a ray down at the star and place the dummy at the point you get as the intersection.

This tutorial seems fitting: http://www.rubengarza.com/maxscript-T04-ScriptController.htm