Matrix44 Struct Reference

Row-major 4x4 Matrix. More...

#include <Matrix.hpp>

Public Member Functions
	Matrix44 ()
	Constructor. Inits to identity.
	Matrix44 (float xDeg, float yDeg, float zDeg)
	Constructor that makes an XYZ rotation matrix.
	Matrix44 (const Matrix44 &other)
	Matrix44 (const float *data)
Matrix44 &	operator= (const Matrix44 &other)
void	Scale (float x, float y, float z)
void	InitFrom (const float *data)
void	MakeIdentity ()
	Resets this matrix.
void	MakeLookAt (const Vec3 &eye, const Vec3 &center, const Vec3 &up)
void	MakeProjection (float fovDegrees, float aspect, float nearDepth, float farDepth)
void	MakeProjection (float left, float right, float bottom, float top, float nearDepth, float farDepth)
void	MakeRotationXYZ (float xDeg, float yDeg, float zDeg)
void	Print () const
	Prints the matrix to the console.
void	Transpose (Matrix44 &out) const
void	Translate (const Vec3 &v)

Static Public Member Functions
static void	Invert (const Matrix44 &matrix, Matrix44 &out)
	Inverts a matrix. More...
static void	InverseTranspose (const float m[16], float *out)
	Inverse transpose. More...
static void	Multiply (const Matrix44 &a, const Matrix44 &b, Matrix44 &out)
static void	TransformPoint (const Vec4 &vec, const Matrix44 &mat, Vec4 *out)
static void	TransformPoint (const Vec3 &vec, const Matrix44 &mat, Vec3 *out)
static void	TransformDirection (const Vec3 &dir, const Matrix44 &mat, Vec3 *out)

Public Attributes
float	m [16]
	Member data, row-major.

Static Public Attributes
static const Matrix44	identity
	Identity matrix.
static const Matrix44	bias
	Converts depth coordinates from [-1,1] to [0,1]. This is needed to sample the shadow map texture.

Detailed Description

Row-major 4x4 Matrix.

Constructor & Destructor Documentation

Matrix44() [1/2]

Matrix44::Matrix44

(

const Matrix44 &

other

)

Copy constructor.

Parameters

other

Other matrix.

Matrix44() [2/2]

Matrix44::Matrix44 ( const float *  data )

explicit

Parameters

data	Column-major initialization data.

Member Function Documentation

InitFrom()

void Matrix44::InitFrom

(

const float *

data

)

Parameters

data	4x4 column-major matrix data.

InverseTranspose()

void Matrix44::InverseTranspose ( const float  m[16], float *  out  )

static

Inverse transpose.

Parameters

m	Matrix data.
out	Inverse transpose of m.

See also

Transpose.

Invert()

void Matrix44::Invert ( const Matrix44 &  matrix, Matrix44 &  out  )

static

Inverts a matrix.

Parameters

matrix	4x4 matrix.
out	Inverted matrix.

MakeLookAt()

void Matrix44::MakeLookAt	(	const Vec3 &	eye,
		const Vec3 &	center,
		const Vec3 &	up
	)

Makes a lookat matrix.

Parameters

eye	Eye (camera) position.
center	Target position.
up	World up vector.

MakeProjection() [1/2]

void Matrix44::MakeProjection	(	float	fovDegrees,
		float	aspect,
		float	nearDepth,
		float	farDepth
	)

Sets perspective projection (right-handed). Calculated as in gluPerspective (http://www.opengl.org/wiki/GluPerspective_code)

Parameters

fovDegrees	Field-of-View in degrees.
aspect	Aspect ratio.
nearDepth	Near plane distance.
farDepth	Far plane distance.

MakeProjection() [2/2]

void Matrix44::MakeProjection	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	nearDepth,
		float	farDepth
	)

Sets orthographic projection.

Parameters

left	Left.
right	Right.
bottom	Bottom.
top	Top.
nearDepth	Near plane distance.
farDepth	Far plane distance.

MakeRotationXYZ()

void Matrix44::MakeRotationXYZ	(	float	xDeg,
		float	yDeg,
		float	zDeg
	)

Makes a rotation around axes.

Parameters

xDeg	X-axis degrees.
yDeg	Y-axis degrees.
zDeg	Z-axis degrees.

Multiply()

void Matrix44::Multiply ( const Matrix44 &  a, const Matrix44 &  b, Matrix44 &  out  )

static

Parameters

a	First Matrix.
b	Second Matrix.
out	a * b.

operator=()

Matrix44& Matrix44::operator= ( const Matrix44 &  other )

inline

Parameters

other

Matrix from which this matrix is initialized.

Returns

this.

Scale()

void Matrix44::Scale	(	float	x,
		float	y,
		float	z
	)

Parameters

x	X
y	Y
z	Z

TransformDirection()

void Matrix44::TransformDirection ( const Vec3 &  dir, const Matrix44 &  mat, Vec3 *  out  )

static

Multiplies a matrix with a vector. Vector's missing w is treated as 0.

Parameters

dir	Direction vector.
mat	Matrix.
out	dir * mat.

TransformPoint() [1/2]

void Matrix44::TransformPoint ( const Vec3 &  vec, const Matrix44 &  mat, Vec3 *  out  )

static

Multiplies a matrix with a vector. Vector's missing w is treated as 1.

Parameters

vec	Vector.
mat	Matrix.
out	vec * mat.

TransformPoint() [2/2]

void Matrix44::TransformPoint ( const Vec4 &  vec, const Matrix44 &  mat, Vec4 *  out  )

static

Multiplies a matrix with a vector.

Parameters

vec	Vector.
mat	Matrix.
out	vec * mat.

Translate()

void Matrix44::Translate

(

const Vec3 &

v

)

Parameters

v	Translation.

Transpose()

void Matrix44::Transpose

(

Matrix44 &

out

)

const

Parameters

out	Result of transpose.

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The documentation for this struct was generated from the following files:

• /home/glaze/Documents/src/Aether3D_2013/Include/Matrix.hpp
• /home/glaze/Documents/src/Aether3D_2013/Include/Matrix.cpp