Matrix4Float Class Reference

Matrix representation for the GPU. More...

#include <evectorfloat.h>

Public Member Functions
	Matrix4Float ()
	Create a matrix.
	Matrix4Float (float)
	Create a diagonal matrix.
	Matrix4Float (float[16])
	Create a matrix from coeficients.
	Matrix4Float (const Matrix4 &)
	Create a matrix of float from a matrix of double.
float &	operator() (int, int)
	Accessor.
Matrix4Float	Inverse () const
	Compute the inverse.

Static Public Member Functions
static Matrix4Float	LookAt (const Vector &eye, const Vector &at, const Vector &up)
	Create a look-at matrix from (eye, at, up) vectors.
static Matrix4Float	Perspective (float fovy, float zNear, float zFar, float width, float height)
	Create a perspective projection matrix.
static Matrix4Float	Orthographic (float left, float right, float bottom, float top, float zNear, float zFar)
	Create an orthographic projection matrix.

Public Attributes
float	r [16] = { 1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0 }
	Coefficients, set to identity matrix. In column major.

Friends
Matrix4Float	operator* (const Matrix4Float &u, const Matrix4Float &v)
	Matrix multiplication.
bool	operator!= (const Matrix4Float &u, const Matrix4Float &v)
	Matrix comparison.
std::ostream &	operator<< (std::ostream &s, const Matrix4Float &matrix)
	Overloaded.

Detailed Description

Matrix representation for the GPU.

Member Function Documentation

LookAt()

Matrix4Float Matrix4Float::LookAt ( const Vector & eye, const Vector & at, const Vector & up )

static

Create a look-at matrix from (eye, at, up) vectors.

Parameters

eye	camera eye
at	camera look-at point
up	camera up vector

References Matrix4Float().

Referenced by SphereTracingWidget::RenderPoints(), and SphereTracingWidget::RenderSDF().

Orthographic()

Matrix4Float Matrix4Float::Orthographic ( float l, float r, float b, float t, float n, float f )

static

Create an orthographic projection matrix.

Parameters

l	coordinate of the left vertical clipping plane
r	coordinate of the right vertical clipping plane
b	coordinate of the bottom horizontal clipping plane
t	coordinate of the top horizontal clipping plane
n,f	camera near and far plane

References Matrix4Float(), and r.

Referenced by SphereTracingWidget::RenderPoints(), and SphereTracingWidget::RenderSDF().

Perspective()

Matrix4Float Matrix4Float::Perspective ( float fovy, float zNear, float zFar, float width, float height )

static

Create a perspective projection matrix.

Parameters

fovy	Camera vertical fov (in degrees).
zNear,zFar	Planes.
width,height	Camera dimension.

References Math::DegreeToRadian(), and Matrix4Float().

Referenced by SphereTracingWidget::RenderPoints(), and SphereTracingWidget::RenderSDF().

Friends And Related Symbol Documentation

operator<<

std::ostream & operator<< ( std::ostream & s, const Matrix4Float & matrix )

friend

Overloaded.

Parameters

s	Stream.
matrix	The matrix.

References Matrix4Float(), and operator<<.

Referenced by operator<<.