--- ray/src/util/findglare.c	2009/02/07 05:40:47	2.13
+++ ray/src/util/findglare.c	2021/02/12 00:53:56	2.15
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: findglare.c,v 2.13 2009/02/07 05:40:47 greg Exp $";
+static const char	RCSid[] = "$Id: findglare.c,v 2.15 2021/02/12 00:53:56 greg Exp $";
 #endif
 /*
  * Find glare sources in a scene or image.
@@ -9,10 +9,6 @@ static const char	RCSid[] = "$Id: findglare.c,v 2.13 2
 
 #include "glare.h"
 
-#define FEQ(a,b)	((a)-(b)<=FTINY&&(b)-(a)<=FTINY)
-#define VEQ(v1,v2)	(FEQ((v1)[0],(v2)[0])&&FEQ((v1)[1],(v2)[1]) \
-				&&FEQ((v1)[2],(v2)[2]))
-
 char	*rtargv[64] = {"rtrace", "-h-", "-ov", "-fff", "-ld-", "-i-", "-I-"};
 int	rtargc = 7;
 
@@ -129,10 +125,13 @@ main(
 			/* FALL THROUGH */
 		case 's':
 		case 'P':
+		case 'n':
 			rtargv[rtargc++] = argv[i];
 			rtargv[rtargc++] = argv[++i];
 			break;
 		case 'w':
+		case 'u':
+		case 'b':
 			rtargv[rtargc++] = argv[i];
 			break;
 		case 'a':
@@ -143,6 +142,14 @@ main(
 			}
 			rtargv[rtargc++] = argv[++i];
 			break;
+		case 'm':
+			rtargv[rtargc++] = argv[i];
+			if ((argv[i][2] == 'e') | (argv[i][2] == 'a')) {
+				rtargv[rtargc++] = argv[++i];
+				rtargv[rtargc++] = argv[++i];
+			}
+			rtargv[rtargc++] = argv[++i];
+			break;
 		default:
 			goto userr;
 		}
@@ -184,7 +191,7 @@ main(
 			exit(1);
 		}
 		ourview = pictview;
-	} else if (picture != NULL && !VEQ(ourview.vp, pictview.vp)) {
+	} else if (picture != NULL && !VABSEQ(ourview.vp, pictview.vp)) {
 		fprintf(stderr, "%s: picture must have same viewpoint\n",
 				progname);
 		exit(1);