[Home](./index.md) > [server](./server.md) > [Quaternion](./server.quaternion.md) > [transformVector](./server.quaternion.transformvector.md) ## Quaternion.transformVector() method Rotates the provided vector by the rotation this quaternion represents. This modifies the vector in-place, but also returns the rotated vector. **Signature:** ```typescript transformVector(vector: Vector3): Vector3; ``` ## Parameters

Parameter	Type	Description
vector	[Vector3](./server.vector3.md)	the vector to rotate

**Returns:** [Vector3](./server.vector3.md) the rotated vector.