Math Functions for 2D, 3D, and 4D Vectors

This section describes Intel® Integrated Performance Primitives (Intel® IPP) mathematical functions for two-dimensional (2D), three-dimensional (3D), and four-dimensional (4D) vectors.

The Intel IPP math functions for 2D, 3D, and 4D vectors perform the same mathematical operations as the math library contained in the D3DX 10 utility library of the Microsoft DirectX* Software Development Kit, but the Intel IPP functions use a different application programmer interface (API). Therefore, this section does not provide detailed descriptions of some functions. For detailed descriptions of such functions, refer to the documentation on the DirectX* SDK.

Math Functions for 2D, 3D, and 4D Vectors
Function Base Name	Operation
Len	Computes the length of a 2D, 3D, or 4D vector.
LenSqr	Computes the squared length of a 2D, 3D, or 4D vector.
DotProduct	Computes the dot product of two 2D, 3D, or 4D vectors.
Add	Adds two 2D, 3D, or 4D vectors.
Sub	Subtracts one 2D, 3D, or 4D vector from another.
Min	Computes the component-wise minimum of two 2D, 3D, or 4D vectors.
Max	Computes the component-wise maximum of two 2D, 3D, or 4D vectors.
MulC	Multiplies a 2D, 3D, or 4D vector by a constant.
InterpolationLinear	Performs linear interpolation of two 2D, 3D, or 4D vectors.
Normalize	Normalizes a 2D, 3D, or 4D vector.
Hermite	Performs the Hermite interpolation of two 2D, 3D, or 4D vectors.
InterpolationCatmullRom	Performs the Catmull-Rom interpolation of four 2D, 3D, or 4D vectors.
BaryCentric	Computes barycentric coordinates of a vector.
CrossProduct	Computes the cross product of two 2D, 3D, or 4D vectors.
AffineTransform	Performs an affine transformation of a 2D, 3D, or 4D vector or array of vectors in a Homogeneous coordinate space.
AffineTransformCoord	Performs an affine transformation of coordinates of a 2D or 3D vector or each vector in an array in a Homogeneous coordinate space.
AffineTransformNormal	Performs an affine transformation of the normal of a 2D or 3D vector or each vector in an array in a Homogeneous coordinate space.
Project	Projects a 3D vector or array of vectors to the screen.
Unproject	Unprojects a 3D vector or array of vectors projected to the screen.
Invert	Inverts a 4x4 matrix.
Identity	Initializes the 4x4 identity matrix.
IsIdentity	Checks whether a 4x4 matrix is the identity matrix.
Det	Computes the determinant of a 4x4 matrix.
Transpose	Transposes a 4x4 matrix.
MulTranspose	Multiplies two 4x4 matrices and transposes the result.
Scaling	Computes the 4x4 scaling matrix.
Translation	Computes the 4x4 translation matrix.
RotationX, RotationY, RotationZ	Computes the 4x4 matrix of the rotation around the x, y, or z axis.
RotationAxis	Computes the 4x4 matrix of the rotation around an arbitrary axis.
RotationYawPitchRoll	Computes the 4x4 rotation matrix defined by the Tait-Bryan angles.
LookAtRH, LookAtLH	Computes the 4x4 right-handed or left-handed look-at matrix.
PerspectiveRH, PerspectiveLH	Computes the 4x4 matrix of the right-handed or left-handed perspective projection.
PerspectiveFovRH, PerspectiveFovLH	Computes the 4x4 matrix of the right-handed or left-handed perspective projection based on a field of view.
PerspectiveOffCenterRH, PerspectiveOffCenterLH	Computes the 4x4 matrix of right-handed or left-handed customized perspective projection.
OrthoRH, OrthoLH	Computes the 4x4 matrix of the right-handed or left-handed orthographic projection.
OrthoOffCenterRH, OrthoOffCenterLH	Computes the 4x4 matrix of the right-handed or left-handed customized orthographic projection.

Math Functions for 2D, 3D, and 4D Vectors

See Also