The class COP2_TimingBase is the base class for COPs that
manipulate timing of frames. It is the most lightweight of all the base
classes. It overrides a few COP methods as a convienience and adds a
dependency method for different frames.
Marks all planes as pass-through (since timing COPs rarely modify
image data, they just re-route it to different frames)
Marks the node as a time modifying node for the timeline view
Marks the node as time dependent
Marks the node as a fast operation (for purposes of the Fast
Interactive Cooking feature).
If you override cookSequenceInfo(), you should call COP2_TimingBase::cookSequenceInfo()
at the beginning of your method (if you want all the planes passed
through).