--- ray/src/rt/rtrace.c	2003/06/05 19:29:34	2.30
+++ ray/src/rt/rtrace.c	2003/10/04 14:39:53	2.35
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rtrace.c,v 2.30 2003/06/05 19:29:34 schorsch Exp $";
+static const char	RCSid[] = "$Id: rtrace.c,v 2.35 2003/10/04 14:39:53 greg Exp $";
 #endif
 /*
  *  rtrace.c - program and variables for individual ray tracing.
@@ -21,6 +21,8 @@ static const char	RCSid[] = "$Id: rtrace.c,v 2.30 2003
  *  irradiance values are desired.
  */
 
+#include  <time.h>
+
 #include  "platform.h"
 #include  "ray.h"
 #include  "otypes.h"
@@ -55,8 +57,8 @@ int  hresolu = 0;			/* horizontal (scan) size */
 int  vresolu = 0;			/* vertical resolution */
 
 double  dstrsrc = 0.0;			/* square source distribution */
-double  shadthresh = .05;		/* shadow threshold */
-double  shadcert = .5;			/* shadow certainty */
+double  shadthresh = .03;		/* shadow threshold */
+double  shadcert = .75;			/* shadow certainty */
 int  directrelay = 2;			/* number of source relays */
 int  vspretest = 512;			/* virtual source pretest density */
 int  directvis = 1;			/* sources visible? */
@@ -72,16 +74,16 @@ double  specjitter = 1.;		/* specular sampling jitter 
 
 int  backvis = 1;			/* back face visibility */
 
-int  maxdepth = 6;			/* maximum recursion depth */
-double  minweight = 4e-3;		/* minimum ray weight */
+int  maxdepth = 8;			/* maximum recursion depth */
+double  minweight = 2e-3;		/* minimum ray weight */
 
 char  *ambfile = NULL;			/* ambient file name */
 COLOR  ambval = BLKCOLOR;		/* ambient value */
 int  ambvwt = 0;			/* initial weight for ambient value */
-double  ambacc = 0.2;			/* ambient accuracy */
-int  ambres = 128;			/* ambient resolution */
-int  ambdiv = 512;			/* ambient divisions */
-int  ambssamp = 0;			/* ambient super-samples */
+double  ambacc = 0.1;			/* ambient accuracy */
+int  ambres = 256;			/* ambient resolution */
+int  ambdiv = 1024;			/* ambient divisions */
+int  ambssamp = 512;			/* ambient super-samples */
 int  ambounce = 0;			/* ambient bounces */
 char  *amblist[128];			/* ambient include/exclude list */
 int  ambincl = -1;			/* include == 1, exclude == 0 */
@@ -107,7 +109,7 @@ void
 quit(code)			/* quit program */
 int  code;
 {
-#ifndef  NIX
+#ifndef  NON_POSIX /* XXX we don't clean up elsewhere? */
 	headclean();		/* delete header file */
 	pfclean();		/* clean up persist files */
 #endif
@@ -283,12 +285,13 @@ double	dmax;
 	thisray.rmax = dmax;
 	rayorigin(&thisray, NULL, PRIMARY, 1.0);
 	if (castonly) {
-		if (!localhit(&thisray, &thescene))
+		if (!localhit(&thisray, &thescene)) {
 			if (thisray.ro == &Aftplane) {	/* clipped */
 				thisray.ro = NULL;
 				thisray.rot = FHUGE;
 			} else
 				sourcehit(&thisray);
+		}
 	} else
 		rayvalue(&thisray);
 	printvals(&thisray);