guMtxL2F [Function]

Function

guMtxL2F

Converts a matrix from fixed point to floating point

Syntax

#include <ultra64.h>        /* gu.h */
void guMtxL2F(float mf[4][4], Mtx *m);

Arguments

mf

Resulting 4x4 floating-point matrix

m

Pointer to 4x4 fixed-point matrix

Returned value

None.

Description

Converts the the 4x4 fixed-point matrix m into the floating-point matrix mf. This function provides a useful way to process matrices on the host CPU. For a detailed explanation about the fixed-point format see gSPMatrix. The opposite conversion from floating point to fixed point is handled with the guMtxF2L function.

Note

The Mtx structure looks like this:

typedef long  Mtx_t[4][4];
typedef union {
     Mtx_t          m;
     long long int  force_structure_alignment;
} Mtx;

See also

gSPMatrix, guMtxF2L

Revision history

03/01/99 Completely rewritten.