来自Reddit上老哥对以上动画系统提到的信息分析
BGS used to use the Havok Behavior SDK, which is a state machine-based character animation system that was discontinued by Microsoft. If it was replaced, the new system should provide at least parity with it. Note that rigidbody physics, fluid and soft body simulation, and destructible geometry might still use Havok.
+Graph based editing
This is more of an animation authoring stuff, where you can adjust the curves that determine how keyframes between animation poses and loops are interpolated. Probably bodes well for animation blending. This could have some use in smoothly morphing between different animations without authoring transitions between states like running and crouching, or combining existing poses so you don't have to creat multiple walk and run cycles for different weapons, for example.
+Live monitoring
Again, more of an authoring tool.
+In-game animation rewind tools
This is actually very interesting as it directly mentions the capability to do something in-game, which might suggest time rewinding as a gameplay feature. If that's the case, then the other Havok components I mentioned might have been scrapped as well.
+Predictive foot ik
Useful for what you said (sticking feet to the ground on uneven surfaces) but it can go from something as relatively simple as that to an automated parkour system where jumps are predicted and executed on the fly.
with bone scaling
Bone scaling has always been a bit of an unstable mess in modders' hands, but it could prove useful for having more dynamic, anticipating and impactful animations that better follow the squash and stretch principle. Might also impact character creation; Fallout 4 already uses movable (possibly scalable?) bones for this purpose.
and retargeting
Hmmm, this is usually not a problem with Bethesda's previous "actor" paradigm, where most if not all humanoid NPCs are just mesh variations with a common rig that plays all animations. Retargeting could imply that sufficiently different armatures that play the same animations exist in the game. Think Skyrim bears playing Vampire Lord animations
+High quality compression +Very high level of performance
Less RAM usage, less CPU cycles, better performance. I'm not entirely sure about how big of a performance impact this has played on previous games. IMO, drawcall optimization has been much more costly than the animation engine itself, but it's still good news!

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