Here's a test of the manual Buggy animation rig. The wheels rotate according to the forward translation of the global mover controller. This is done by the expression:
objectRotate = controllerTranslate * 2 * Pi * wheelRadius;
I found this expression in the "Maya: Professional Tips and Techniques" book by Lee Lanier. A great book for exactly what the title states. However, upon closer inspection, I noticed that the equation can be simplified to:
objectRotate = controllerTranslate * Pi * wheelDiameter;
Maybe it's a math thing where it's customary to state the radius, but it seems a little convoluted for my purposes. It's hard to see in the little blogger video window, so the download link is below.
Larger Size Video
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