lib/ultralib/src/gu/normalize.c


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/**************************************************************************
 *									  *
 *		 Copyright (C) 1994, Silicon Graphics, Inc.		  *
 *									  *
 *  These coded instructions, statements, and computer programs  contain  *
 *  unpublished  proprietary  information of Silicon Graphics, Inc., and  *
 *  are protected by Federal copyright law.  They  may  not be disclosed  *
 *  to  third  parties  or copied or duplicated in any form, in whole or  *
 *  in part, without the prior written consent of Silicon Graphics, Inc.  *
 *									  *
 **************************************************************************/

#include "guint.h"

void guNormalize(float *x, float *y, float *z)
{
    float	m;

    m = 1/sqrtf((*x)*(*x) + (*y)*(*y) + (*z)*(*z));
    *x *= m;
    *y *= m;
    *z *= m;
}