--- ray/src/cv/ies2rad.c	1996/06/12 19:13:42	2.13
+++ ray/src/cv/ies2rad.c	1997/07/25 11:18:18	2.15
@@ -12,6 +12,7 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include <stdio.h>
 #include <math.h>
+#include <sys/types.h>
 #include <ctype.h>
 #include "color.h"
 #include "paths.h"
@@ -127,6 +128,7 @@ extern char	*strcpy(), *strcat(), *stradd(), *tailtrun
 		*filename(), *libname(), *fullname(), *malloc(),
 		*getword(), *atos();
 extern float	*matchlamp();
+extern time_t	fdate();
 
 #define scnint(fp,ip)	cvtint(ip,getword(fp))
 #define scnflt(fp,rp)	cvtflt(rp,getword(fp))
@@ -712,6 +714,7 @@ FILE	*fp;
 char	*mod, *name;
 int	dolower, doupper;
 {
+	int	dosides = 0;
 	char	buf[MAXWORD];
 	
 	fprintf(fp, "\n%s %s %s_light\n", mod,
@@ -722,15 +725,13 @@ int	dolower, doupper;
 			lampcolor[1]/shp->area,
 			lampcolor[2]/shp->area);
 	if (doupper && dolower && shp->type != SPHERE && shp->h > MINDIM)
-		if (shp->isillum) {
-			fprintf(fp, "\nvoid illum %s_glow\n", name);
-			fprintf(fp, "0\n0\n3 0 0 0\n");
-		} else {
+		if (!shp->isillum) {
 			fprintf(fp, "\n%s glow %s_glow\n", mod, name);
 			fprintf(fp, "0\n0\n4 %g %g %g -1\n",
 					lampcolor[0]/shp->area,
 					lampcolor[1]/shp->area,
 					lampcolor[2]/shp->area);
+			dosides++;
 		}
 	switch (shp->type) {
 	case RECT:
@@ -739,7 +740,7 @@ int	dolower, doupper;
 			putrectsrc(shp, fp, buf, name, 0);
 		if (doupper)
 			putrectsrc(shp, fp, buf, name, 1);
-		if (doupper && dolower && shp->h > MINDIM) {
+		if (dosides) {
 			strcat(strcpy(buf, name), "_glow");
 			putsides(shp, fp, buf, name);
 		}
@@ -750,7 +751,7 @@ int	dolower, doupper;
 			putdisksrc(shp, fp, buf, name, 0);
 		if (doupper)
 			putdisksrc(shp, fp, buf, name, 1);
-		if (doupper && dolower && shp->h > MINDIM) {
+		if (dosides) {
 			strcat(strcpy(buf, name), "_glow");
 			putcyl(shp, fp, buf, name);
 		}
@@ -1048,7 +1049,8 @@ FILE	*outfp;			/* close output file upon return */
 		strcpy(cp, "| oconv - > ");
 		cp += 12;
 		fullname(cp,outname,T_OCT);
-		if (system(buf)) {		/* create octree */
+		if (fdate(inpname) > fdate(outname) &&
+				system(buf)) {		/* create octree */
 			fclose(outfp);
 			return(-1);
 		}