How do I calculate Angular Velocity pass into SetPhysicsAngularVelocity?

Development World Creation
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1

I have a component that I am going to detach and enable physics on. How do I calculate angular velocity so that its motion is smooth and visually consistent? Is this in degrees or radians? What coordinate space is this? World or local? Can someone show me a snippet?

2

Months of trial and error and I still haven’t been able to figure it out. Is one of the axes flipped?

3

FQuat Orientation = GetComponentQuat();
FQuat DeltaQ = OldOrientation.Inverse() * Orientation;
FVector Axis;
float Angle;
DeltaQ.ToAxisAndAngle(Axis, Angle);
Angle = FMath::RadiansToDegrees(Angle);
AngularVelocity = Orientation.RotateVector((Axis * Angle) / DeltaTime);
OldOrientation = Orientation;

This took way longer than it should have to trial and error out.

4

mh is it possible to do with a rotator instead?

5

actually thos doesn’t work. let’s say the component turns right, it is possible that this function gives an angular speed for the opposite direction(like going the long way around)

6

Really? I’ve never noticed this behavior. Can you elaborate on why this is the case?