Autodesk 12812-051462-9011 User Guide 3 - Page 2895

Topology-Dependent Modifier Topology-dependent modifiers perform operations on explicit, topological sub-object selections. The Edit Mesh and Mesh Select modifiers are examples of modifiers that perform operations or selections on explicit vertex or face numbers. When these modifiers are present in the stack, you can adversely affect their results if you visit previous stack operations and change the topology (the number and order of faces and vertices) being passed to them. When you do this, a topology-dependence warning alerts you to the situation. Touch In footstep animation on page 7986, the state of the biped foot on the first frame of a footstep. Track A track is a linear representation of animation occurring over time. You can think of a track as a long, straight railroad track, with the animation start time at one end, and the finish time at the other. Keys are placed on the track at intervals that correspond to the time along the track. The term track is used in several areas of character studio, including the following: ■ Each animatable object and parameter in 3ds Max and character studio has its own animation track, which you can view and edit in Track View on page 4236. ■ Tools are available especially for working with biped tracks. The center of mass is unique in that it has separate tracks for horizontal and vertical animation, which you can select on the Motion panel > Track Selection rollout on page 4348. You can copy and paste tracks on page 4311 on biped objects to other bipeds with the Copy/Paste rollout on page 4389. ■ In the Keyframing Tools rollout on page 4380, you can clear all animation or just selected tracks. ■ In the Motion Mixer on page 3699, the linear areas that hold motion clips are called tracks. Several tracks can be stacked on top of one another to use animation from all tracks at the same time. 8150 | Glossary