--- ray/src/rt/rpict.c	1991/11/21 10:10:46	2.2
+++ ray/src/rt/rpict.c	1992/01/14 16:15:57	2.5
@@ -47,6 +47,9 @@ int  vspretest = 512;			/* virtual source pretest dens
 int  directinvis = 0;			/* sources invisible? */
 double  srcsizerat = .25;		/* maximum ratio source size/dist. */
 
+double  specthresh = .5;		/* specular sampling threshold */
+double  specjitter = 1.;		/* specular sampling jitter */
+
 int  maxdepth = 6;			/* maximum recursion depth */
 double  minweight = 5e-3;		/* minimum ray weight */
 
@@ -108,11 +111,11 @@ report()		/* report progress */
 #else
 report()		/* report progress */
 {
-	signal(SIGALRM, report);
 	tlastrept = time((long *)0);
 	sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f hours\n",
 			nrays, pctdone, (tlastrept-tstart)/3600.0);
 	eputs(errmsg);
+	signal(SIGALRM, report);
 }
 #endif
 
@@ -277,8 +280,12 @@ int  xres, y, xstep;
 		z = pixvalue(scanline[i], i, y);
 		if (zline) zline[i] = z;
 		if (sd) b = sd[0] > sd[1] ? sd[0] : sd[1];
-		b = fillsample(scanline+i-xstep, zline ? zline+i-xstep : NULL,
-				i-xstep, y, xstep, 0, b/2);
+		if (i <= xstep)
+			b = fillsample(scanline, zline, 0, y, i, 0, b/2);
+		else
+			b = fillsample(scanline+i-xstep,
+					zline ? zline+i-xstep : NULL,
+					i-xstep, y, xstep, 0, b/2);
 		if (sd) *sd++ = nc & 1 ? bl : b;
 		bl = b;
 	}