--- ray/src/gen/mkillum.c	2007/09/14 21:29:08	2.29
+++ ray/src/gen/mkillum.c	2012/10/13 20:15:43	2.39
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: mkillum.c,v 2.29 2007/09/14 21:29:08 greg Exp $";
+static const char RCSid[] = "$Id: mkillum.c,v 2.39 2012/10/13 20:15:43 greg Exp $";
 #endif
 /*
  * Make illum sources for optimizing rendering process
@@ -8,9 +8,8 @@ static const char RCSid[] = "$Id: mkillum.c,v 2.29 200
 #include  <signal.h>
 #include  <ctype.h>
 
-#include  "platform.h"
+#include  "rtprocess.h"	/* win_popen() */
 #include  "mkillum.h"
-#include  "random.h"
 
 				/* default parameters */
 #define  SAMPDENS	48		/* points per projected steradian */
@@ -25,6 +24,7 @@ static const char RCSid[] = "$Id: mkillum.c,v 2.29 200
 
 struct illum_args  thisillum = {	/* our illum and default values */
 		0,
+		0.,
 		DFLMAT,
 		DFLDAT,
 		0,
@@ -67,9 +67,8 @@ main(		/* compute illum distributions using rtrace */
 	gargv = argv;
 	progname = gargv[0];
 				/* set up rendering defaults */
-	dstrsrc = 0.25;
+	dstrsrc = 0.5;
 	directrelay = 3;
-	directvis = 0;
 	ambounce = 2;
 				/* get options from command line */
 	for (i = 1; i < argc; i++) {
@@ -112,7 +111,7 @@ main(		/* compute illum distributions using rtrace */
 	init(argv[gargc-1], nprocs);
 	if (gargc < argc) {
 		if (gargc == argc-1 || argv[gargc][0] != '<' || argv[gargc][1])
-			error(USER, "Use '< file1 file2 ..' for multiple inputs");
+			error(USER, "use '< file1 file2 ..' for multiple inputs");
 		for (i = gargc+1; i < argc; i++) {
 			if ((fp = fopen(argv[i], "r")) == NULL) {
 				sprintf(errmsg,
@@ -175,6 +174,16 @@ char  *s;
 
 
 void
+quit(ec)			/* make sure exit is called */
+int	ec;
+{
+	if (ray_pnprocs > 0)	/* close children if any */
+		ray_pclose(0);		
+	exit(ec);
+}
+
+
+void
 filter(		/* process stream */
 	register FILE	*infp,
 	char	*name
@@ -216,6 +225,7 @@ xoptions(			/* process options in string s */
 {
 	extern FILE	*freopen();
 	char	buf[64];
+	int	negax;
 	int	nerrs = 0;
 	register char	*cp;
 
@@ -295,15 +305,20 @@ xoptions(			/* process options in string s */
 			}
 			cp = sskip(cp);
 			continue;
-		case 'd':			/* point sample density */
+		case 'd':			/* sample density */
 			if (*++cp != '=')
 				break;
-			if (!isintd(++cp, " \t\n\r"))
-				break;
-			thisillum.sampdens = atoi(cp);
+			if (!*++cp || isspace(*cp))
+				continue;
+			if (isintd(cp, " \t\n\r")) {
+				thisillum.sampdens = atoi(cp);
+			} else {
+				error(WARNING, "direct BSDF input unsupported");
+				goto opterr;
+			}
 			cp = sskip(cp);
 			continue;
-		case 's':			/* point super-samples */
+		case 's':			/* surface super-samples */
 			if (*++cp != '=')
 				break;
 			if (!isintd(++cp, " \t\n\r"))
@@ -345,6 +360,16 @@ xoptions(			/* process options in string s */
 			}
 			doneheader = 0;
 			continue;
+		case 't':			/* object thickness */
+			if (*++cp != '=')
+				break;
+			if (!isfltd(++cp, " \t\n\r"))
+				break;
+			thisillum.thick = atof(cp);
+			if (thisillum.thick < .0)
+				thisillum.thick = .0;
+			cp = sskip(cp);
+			continue;
 		case '!':			/* processed file! */
 			sprintf(errmsg, "(%s): already processed!", nm);
 			error(WARNING, errmsg);
@@ -387,9 +412,10 @@ printopts(void)			/* print out option default values *
 		printf("l+\t\t\t\t# light type on\n");
 	else
 		printf("l-\t\t\t\t# light type off\n");
-	printf("d=%d\t\t\t\t# density of points\n", thisillum.sampdens);
-	printf("s=%d\t\t\t\t# samples per point\n", thisillum.nsamps);
+	printf("d=%d\t\t\t\t# density of directions\n", thisillum.sampdens);
+	printf("s=%d\t\t\t\t# samples per direction\n", thisillum.nsamps);
 	printf("b=%f\t\t\t# minimum average brightness\n", thisillum.minbrt);
+	printf("t=%f\t\t\t# object thickness\n", thisillum.thick);
 }