Inertialization
Processes inertial blending requests from previous nodes
UAnimGraphNode_Inertialization
FAnimNode_Inertialization
Offers an alternative way to blend between animations, instead of the default crossfade, by tracking bone velocities and letting them carry over into the blend. Optionally a blend profile can be used as well. A more technical explanation of Inertialization with some nice visualizations can be found over here
By default, AnimCurves will be inertially blended as well, but the node allows specific curves to be filtered out by name. Filtered AnimCurves will then instantly change values instead of being inertially blended.
The node also allows to preallocate memory for inertialization, which avoids overhead of allocating and deallocating memory for inertial blends, but adds a slight memory cost in turn.
On inertialization requests
Inertialization requests can come from a few different places in the AnimGraph. BlendList nodes as well as state machine transitions have the option to use inertialization instead of standard blends. AnimLayer nodes don’t have this option and can only use inertialization for their blending.