--- ray/src/gen/gensurf.c	1990/07/09 09:55:47	1.9
+++ ray/src/gen/gensurf.c	1990/12/15 15:00:52	1.12
@@ -61,7 +61,7 @@ char  *argv[];
 
 	for (i = 8; i < argc; i++)
 		if (!strcmp(argv[i], "-e"))
-			scompile(NULL, argv[++i]);
+			scompile(argv[++i], NULL, 0);
 		else if (!strcmp(argv[i], "-f"))
 			fcompile(argv[++i]);
 		else if (!strcmp(argv[i], "-s"))
@@ -72,11 +72,11 @@ char  *argv[];
 	modname = argv[1];
 	surfname = argv[2];
 	sprintf(stmp, "%s(s,t)=%s;", XNAME, argv[3]);
-	scompile(NULL, stmp);
+	scompile(stmp, NULL, 0);
 	sprintf(stmp, "%s(s,t)=%s;", YNAME, argv[4]);
-	scompile(NULL, stmp);
+	scompile(stmp, NULL, 0);
 	sprintf(stmp, "%s(s,t)=%s;", ZNAME, argv[5]);
-	scompile(NULL, stmp);
+	scompile(stmp, NULL, 0);
 	m = atoi(argv[6]);
 	n = atoi(argv[7]);
 	if (m <= 0 || n <= 0)
@@ -248,25 +248,16 @@ compnorms(r0, r1, r2, siz)		/* compute row of averaged
 register POINT  *r0, *r1, *r2;
 int  siz;
 {
-	FVECT  v1, v2, vc;
+	FVECT  v1, v2;
 	register int  i;
 
 	if (!smooth)			/* not needed if no smoothing */
 		return;
 					/* compute middle points */
 	while (siz-- >= 0) {
-		fvsum(v1, r2[0].p, r1[0].p, -1.0);
-		fvsum(v2, r1[1].p, r1[0].p, -1.0);
+		fvsum(v1, r2[0].p, r0[0].p, -1.0);
+		fvsum(v2, r1[1].p, r1[-1].p, -1.0);
 		fcross(r1[0].n, v1, v2);
-		fvsum(v1, r0[0].p, r1[0].p, -1.0);
-		fcross(vc, v2, v1);
-		fvsum(r1[0].n, r1[0].n, vc, 1.0);
-		fvsum(v2, r1[-1].p, r1[0].p, -1.0);
-		fcross(vc, v1, v2);
-		fvsum(r1[0].n, r1[0].n, vc, 1.0);
-		fvsum(v1, r2[0].p, r1[0].p, -1.0);
-		fcross(vc, v2, v1);
-		fvsum(r1[0].n, r1[0].n, vc, 1.0);
 		normalize(r1[0].n);
 		r0++; r1++; r2++;
 	}
@@ -282,7 +273,7 @@ POINT  *p0, *p1, *p2, *p3;
 #define v  ((ax+2)%3)
 
 	register int  ax;
-	double  eqnmat[4][4];
+	MAT4  eqnmat;
 	FVECT  v1;
 	register int  i, j;
 
@@ -336,29 +327,29 @@ POINT  *p0, *p1, *p2, *p3;
  */
 
 invmat(inverse,mat)
-double mat[4][4],inverse[4][4];
+MAT4  inverse, mat;
 {
 #define SWAP(a,b,t) (t=a,a=b,b=t)
 
-	double  m4tmp[4][4];
+	MAT4  m4tmp;
 	register int i,j,k;
 	register double temp;
 
-	bcopy((char *)mat, (char *)m4tmp, sizeof(m4tmp));
+	copymat4(m4tmp, mat);
 					/* set inverse to identity */
 	for (i = 0; i < 4; i++)
 		for (j = 0; j < 4; j++)
 			inverse[i][j] = i==j ? 1.0 : 0.0;
 
 	for(i = 0; i < 4; i++) {
-		/* Look for raw with largest pivot and swap raws */
+		/* Look for row with largest pivot and swap rows */
 		temp = FTINY; j = -1;
 		for(k = i; k < 4; k++)
 			if(ABS(m4tmp[k][i]) > temp) {
 				temp = ABS(m4tmp[k][i]);
 				j = k;
 				}
-		if(j == -1)	/* No replacing raw -> no inverse */
+		if(j == -1)	/* No replacing row -> no inverse */
 			return(0);
 		if (j != i)
 			for(k = 0; k < 4; k++) {