matrix.h File Reference

4x4 Matrix More...

#include <lescegra/util/vertex.h>

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Defines

#define LSG_MATRIX_H 1

Typedefs

typedef float Matrix [16]

4x4 matrix

Functions

void matrix_load_identity (Matrix m)

void matrix_load_translate (Matrix m, float x, float y, float z)

void matrix_load_translatev (Matrix m, Vertex v)

void matrix_load_scale (Matrix m, float x, float y, float z)

void matrix_load_scalev (Matrix m, Vertex v)

void matrix_load_rotate (Matrix m, float x, float y, float z)

void matrix_load_rotatev (Matrix m, Vertex v)

void matrix_load_ortho (Matrix m, float x1, float x2, float y1, float y2, float z1, float z2)

void matrix_load_frustum (Matrix m, float x1, float x2, float y1, float y2, float z1, float z2)

void matrix_load_perspective (Matrix m, float fovy, float aspect, float near, float far)

void matrix_load_lookat (Matrix m, Vertex from, Vertex to, Vertex up)

void matrix_load_pick (Matrix m, float x, float y, float w, float h, float vp_x, float vp_y, float vp_w, float vp_h)

void matrix_copy (Matrix dst, const Matrix src)

void matrix_mult (Matrix dst, const Matrix src)

void matrix_premult (Matrix dst, const Matrix src)

void matrix_transpose (Matrix m)

void matrix_invert (Matrix m)

void matrix_apply (const Matrix m, Vertex v)

void matrix_preapply (const Matrix m, Vertex v)

Variables

const Matrix matrix_identity

Detailed Description

4x4 Matrix

Typedef Documentation

typedef float Matrix[16]

4x4 matrix
A 4x4 matrix

Function Documentation

void matrix_load_identity ( Matrix m )

Reset a matrix to the identity.
Parameters:

m The matrix to reset

void matrix_load_translate ( Matrix m,

float x,

float y,

float z

)

Create a translation matrix.
Parameters:

m The destination matrix

x The first translation component

y The second translation component

z The third translation component

void matrix_load_translatev ( Matrix m,

Vertex v

)

Create a translation matrix from a vertex.
Parameters:

m The destination matrix

v The translation vertex

void matrix_load_scale ( Matrix m,

float x,

float y,

float z

)

Create a scaling matrix.
Parameters:

m The destination matrix

x The first scaling component

y The second scaling component

z The third scaling component

void matrix_load_scalev ( Matrix m,

Vertex v

)

Create a scaling matrix from a scaling vertex.
Parameters:

m The destination matrix

v The scaling vertex

void matrix_load_rotate ( Matrix m,

float x,

float y,

float z

)

Create a rotation matrix.

void matrix_load_ortho ( Matrix m,

float x1,

float x2,

float y1,

float y2,

float z1,

float z2

)

Create an orthogonal projection matrix.

void matrix_load_frustum ( Matrix m,

float x1,

float x2,

float y1,

float y2,

float z1,

float z2

)

Create a frustum projection matrix.

void matrix_load_perspective ( Matrix m,

float fovy,

float aspect,

float near,

float far

)

Create a perspective projection matrix.

void matrix_load_lookat ( Matrix m,

Vertex from,

Vertex to,

Vertex up

)

Create a lookat matrix.

void matrix_load_pick ( Matrix m,

float x,

float y,

float w,

float h,

float vp_x,

float vp_y,

float vp_w,

float vp_h

)

Create a pick matrix.

void matrix_copy ( Matrix dst,

const Matrix src

)

Copy a matrix into another.
Parameters:

dst The destination matrix

src The source matrix

void matrix_mult ( Matrix dst,

const Matrix src

)

Post-Multiply a matrix with another.
Parameters:

dst The destination matrix

src The source matrix

void matrix_premult ( Matrix dst,

const Matrix src

)

Pre-Multiply a matrix with another.
Parameters:

dst The destination matrix

src The source matrix

void matrix_transpose ( Matrix m )

Transpose a matrix.
Parameters:

m The matrix to transpose

void matrix_invert ( Matrix m )

Invert a matrix.
Parameters:

m The matrix to invert

void matrix_apply ( const Matrix m,

Vertex v

)

Post-Multiply a matrix and a vertex. v = M * v
Parameters:

m The transformation matrix

v The vertex to be transformed

void matrix_preapply ( const Matrix m,

Vertex v

)

Pre-Multiply a matrix and a vertex. v = v * M
Parameters:

m The transformation matrix

v The vertex to be transformed

Variable Documentation

const Matrix matrix_identity

The identity matrix


Defines
#define	LSG_MATRIX_H 1
Typedefs
typedef float	Matrix [16]
	4x4 matrix
Functions
void	matrix_load_identity (Matrix m)
void	matrix_load_translate (Matrix m, float x, float y, float z)
void	matrix_load_translatev (Matrix m, Vertex v)
void	matrix_load_scale (Matrix m, float x, float y, float z)
void	matrix_load_scalev (Matrix m, Vertex v)
void	matrix_load_rotate (Matrix m, float x, float y, float z)
void	matrix_load_rotatev (Matrix m, Vertex v)
void	matrix_load_ortho (Matrix m, float x1, float x2, float y1, float y2, float z1, float z2)
void	matrix_load_frustum (Matrix m, float x1, float x2, float y1, float y2, float z1, float z2)
void	matrix_load_perspective (Matrix m, float fovy, float aspect, float near, float far)
void	matrix_load_lookat (Matrix m, Vertex from, Vertex to, Vertex up)
void	matrix_load_pick (Matrix m, float x, float y, float w, float h, float vp_x, float vp_y, float vp_w, float vp_h)
void	matrix_copy (Matrix dst, const Matrix src)
void	matrix_mult (Matrix dst, const Matrix src)
void	matrix_premult (Matrix dst, const Matrix src)
void	matrix_transpose (Matrix m)
void	matrix_invert (Matrix m)
void	matrix_apply (const Matrix m, Vertex v)
void	matrix_preapply (const Matrix m, Vertex v)
Variables
const Matrix	matrix_identity