DirectXMath Library Quaternion Functions

XMQuaternionBaryCentric

Returns a point in barycentric coordinates, using the specified quaternions.

XMQuaternionBaryCentricV

Returns a point in barycentric coordinates, using the specified quaternions.

XMQuaternionConjugate

Computes the conjugate of a quaternion.

XMQuaternionDot

Computes the dot product of two quaternions.

XMQuaternionEqual

Tests whether two quaternions are equal.

XMQuaternionExp

Computes the exponential of a given pure quaternion.

XMQuaternionIdentity

Returns the identity quaternion.

XMQuaternionInverse

Computes the inverse of a quaternion.

XMQuaternionIsIdentity

Tests whether a specific quaternion is the identity quaternion.

XMQuaternionIsInfinite

Test whether any component of a quaternion is either positive or negative infinity.

XMQuaternionIsNaN

Test whether any component of a quaternion is a NaN.

XMQuaternionLength

Computes the magnitude of a quaternion.

XMQuaternionLengthSq

Computes the square of the magnitude of a quaternion.

XMQuaternionLn

Computes the natural logarithm of a given unit quaternion.

XMQuaternionMultiply

Computes the product of two quaternions.

XMQuaternionNormalize

Normalizes a quaternion.

XMQuaternionNormalizeEst

Estimates the normalized version of a quaternion.

XMQuaternionNotEqual

Tests whether two quaternions are not equal.

XMQuaternionReciprocalLength

Computes the reciprocal of the magnitude of a quaternion.

XMQuaternionRotationAxis

Computes a rotation quaternion about an axis.

XMQuaternionRotationMatrix

Computes a rotation quaternion from a rotation matrix.

XMQuaternionRotationNormal

Computes the rotation quaternion about a normal vector.

XMQuaternionRotationRollPitchYaw

Computes a rotation quaternion based on the pitch, yaw, and roll (Euler angles).

XMQuaternionRotationRollPitchYawFromVector

Computes a rotation quaternion based on a vector containing the Euler angles (pitch, yaw, and roll).

XMQuaternionSlerp

Interpolates between two unit quaternions, using spherical linear interpolation.

XMQuaternionSlerpV

Interpolates between two unit quaternions, using spherical linear interpolation.

XMQuaternionSquad

Interpolates between four unit quaternions, using spherical quadrangle interpolation.

XMQuaternionSquadSetup

Provides addresses of setup control points for spherical quadrangle interpolation.

XMQuaternionSquadV

Interpolates between four unit quaternions, using spherical quadrangle interpolation.

XMQuaternionToAxisAngle

Computes an axis and angle of rotation about that axis for a given quaternion.