Function directx_math::XMQuaternionConjugate

pub fn XMQuaternionConjugate(Q: FXMVECTOR) -> FXMVECTOR

Computes the conjugate of a quaternion.

Parameters

Q The quaternion to conjugate.

Return value

Returns the conjugate of Q.

Remarks

The DirectXMath quaternion functions use an XMVECTOR 4-vector to represent quaternions, where the X, Y, and Z components are the vector part and the W component is the scalar part.

Given a quaternion (x, y, z, w), the XMQuaternionConjugate function returns the quaternion (-x, -y, -z, w).

Use the XMQuaternionNormalize function for any quaternion input that is not already normalized.

Reference

https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMQuaternionConjugate