Содержание

DirectXTK	SimpleMath

Four component vector class modeled after the XNA Game Studio 4 (Microsoft.Xna.Framework.Vector4) math library.

Header

#include <SimpleMath.h>

Initialization

using namespace DirectX::SimpleMath;

Vector4 v;             // Creates a vector [0, 0, 0, 0]
Vector4 v(10);         // Creates a vector [10, 10, 10, 10]
Vector4 v(1, 2, 3, 4); // Creates a vector [1, 2, 3, 4]

float arr[4] = { 1, 2, 3, 4 };
Vector4 v(arr);        // Creates a vector [1, 2, 3, 4]

Fields

x component of vector
y component of vector
z component of vector
w component of vector

Methods

Comparison operators: == and !=
Assignment operators: =, +=, -=, *=, /=
Unary operators: +, -
Binary operators: +, -, *, /
InBounds: Tests if the vector is within the bounds set by the positive and negative of the input bounds.
Length, LengthSquared: Compute vector length.
Dot: Returns the dot-product of two 4-vectors.
Cross: Computes the geometric dot-product of 4-vectors. See XMVector4Cross.
Normalize: Computes a unit-length vector.
Clamp: Clamps the values of the vector per component between a minimum and a maximum.

Statics

Distance, DistanceSquared: Compute distance between two vectors.
Min, Max: Determine minimum/maximum vector elements.
Lerp: Performs a linear interpolation.
SmoothStep: Performs a cube interpolation.
Barycentric: Returns a point in Barycentric coordinates.
CatmullRom: Performs a Catmull-Rom interpolation.
Hermite: Performs a Hermite spline interpolation.
Reflect: Reflects an incident vector across a normal vector.
Refract: Refracts an incident vector across a normal vector.
Transform: Transforms the vector by the matrix or a quaternion. There is also an overload for transforming an array of vectors.