gml_ElMat4.h File Reference

Detailed Description

Elementar 4x4 matrix, 4x1 and 1x4 vector operations.

Matrices are column-major (columns stored in sequence).

Matrix inversion from Cramer's rule technique as reported and implemented in http://www.intel.com/design/pentiumiii/sml/24504301.pdf

#include <math.h>
#include "gml/base/gml_Errors.h"


Functions
template<class T>
gml_TError	gml_EM4_Invert (T m, T i)
	inverts the 4x4 matrix m and stores the result in the 4x4 matrix i. m and i MUST point to non overlapping memory. returns an error if m is not invertible.
template<class T>
void	gml_EM4_MultVxM (T v, T m, T *r)
	Multiplies the 1x4 vector v to the 4x4 matrix m and stores the result in the 1x4 vector r.
template<class T>
void	gml_EM4_MultMxV (T m, T v, T *r)
	Multiplies the 4x4 matrix m to the 4x1 vector v and stores the result in the 4x1 vector r.
template<class T>
void	gml_EM4_MultMxM (T m1, T m2, T *r)
	Multiplies the 4x4 matrix m1 to the 4x4 matrix m2 and stores the result in the 4x4 matrix r.
template<class T>
void	gml_EM4_SetToID (T *i)
	Set the matrix i to the identity matrix.