I’m having problems using cglink with ACT. A video showing the problem and the max file can be found at:
The file contains a biped and two psoas muscles (a right and a left). The left psoas has a cglink modifier attached to it and two keyframes that move the dummy helper forward a little so that the muscle doesn’t disappear into the pelvis of the biped. However, when you scrub the timeline the muscle rotates all over the place instead of just moving forward a little.
The steps I used to creating the dummy are this:
Create the muscle and link the muscle dummy helpers to the bipeds spine and thigh and animate the thigh. Then re-position the cross sections from frame zero, then add the cglink modifier, select the cross section I want to affect and click the “creat dummy and link” button. This all works fine until I animate the cglink dummy helper, then things go way wrong.