Rotation和getComponentRotation有什么区别？

Question

In the UE4 game engine What is the difference between Rotation and GetComponentRotation?

Try to understand this by documentation on at

https://api.unrealengine.com/INT/API/Runtime/Core/Math/FVector/Rotation/index.html

But I could not?

I need some details and explanation about this ..

Answer 1

These two methods are from different objects:

FVector::Rotation
USceneComponent::GetComponentRotation

Both return a rotation object ( FRotator ) that encodes the rotation in the Yaw/Pitch/Roll representation.

The difference is that the Rotation returns an FRotator object that, if applied to a component, will make the component "look" in the direction of the vector. For example, if you take the difference between the position of a sphere and the position of a player, use Rotation, and then apply the rotation to the player, the player will face the sphere.

GetComponentRotation returns the current orientation of the component in global space.