Which is better fbx animation or blue prints for cpu /gpu or does it make any difference on phones

Development Platform & Builds Mobile
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Which is better fbx animation or blue prints for cpu /gpu or does it make any difference on phones

Say I have doors opening and gun that’s in that’s pops out of a Barn,

I can animate using key frames from blender save the fbx,

but I could do that all so with blueprints move each door that opens and move the gun ( I would more control use sing blueprints )

all so

let’s ramp it up

Say I have 20 guns all at one time on the screen, would fbx animation save cpu / gpu on phones

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You should use blueprint for such things because they allow great deal of control and thus animation is too simple hence it wouldn’t be much different from animation performance . Also 20 doors are not really a bottleneck in modern phones