--- ray/src/cv/rad2mgf.c	1995/11/20 11:06:21	2.13
+++ ray/src/cv/rad2mgf.c	1998/10/14 14:48:04	2.15
@@ -8,17 +8,13 @@ static char SCCSid[] = "$SunId$ LBL";
  * Convert Radiance scene description to MGF
  */
 
-#include <stdio.h>
-#include <math.h>
+#include "standard.h"
 #include <ctype.h>
 #include <string.h>
-#include "fvect.h"
 #include "object.h"
 #include "color.h"
 #include "lookup.h"
 
-#define PI	3.14159265358979323846
-
 #define C_1SIDEDTHICK	0.005
 
 int	o_face(), o_cone(), o_sphere(), o_ring(), o_cylinder();
@@ -26,8 +22,7 @@ int	o_instance(), o_illum();
 int	o_plastic(), o_metal(), o_glass(), o_dielectric(),
 	o_mirror(), o_trans(), o_light();
 
-extern void	free();
-extern char	*malloc();
+extern int	free();
 
 LUTAB	rmats = LU_SINIT(free,NULL);		/* defined material table */
 
@@ -431,7 +426,7 @@ o_face(mod, typ, id, fa)		/* print out a polygon */
 char	*mod, *typ, *id;
 FUNARGS	*fa;
 {
-	char	entbuf[2048];
+	char	entbuf[2048], *linestart;
 	register char	*cp;
 	register int	i;
 
@@ -439,10 +434,15 @@ FUNARGS	*fa;
 		return(-1);
 	setmat(mod);
 	setobj(id);
-	cp = entbuf;
+	cp = linestart = entbuf;
 	*cp++ = 'f';
 	for (i = 0; i < fa->nfargs; i += 3) {
 		*cp++ = ' ';
+		if (cp - linestart > 72) {
+			*cp++ = '\\'; *cp++ = '\n';
+			linestart = cp;
+			*cp++ = ' '; *cp++ = ' ';
+		}
 		getvertid(cp, fa->farg + i);
 		while (*cp)
 			cp++;