--- ray/src/util/rad.c	1993/08/25 13:48:37	2.22
+++ ray/src/util/rad.c	1993/09/09 13:07:13	2.24
@@ -612,17 +612,17 @@ register char	*op;
 	d *= 3./(siz[0]+siz[1]+siz[2]);
 	switch (vscale(DETAIL)) {
 	case LOW:
-		op = addarg(op, "-ps 16 -dp 16");
+		op = addarg(op, "-ps 16 -dp 64");
 		sprintf(op, " -ar %d", (int)(4*d));
 		op += strlen(op);
 		break;
 	case MEDIUM:
-		op = addarg(op, "-ps 8 -dp 32");
+		op = addarg(op, "-ps 8 -dp 128");
 		sprintf(op, " -ar %d", (int)(8*d));
 		op += strlen(op);
 		break;
 	case HIGH:
-		op = addarg(op, "-ps 4 -dp 64");
+		op = addarg(op, "-ps 4 -dp 256");
 		sprintf(op, " -ar %d", (int)(16*d));
 		op += strlen(op);
 		break;
@@ -674,19 +674,19 @@ register char	*op;
 	switch (vscale(DETAIL)) {
 	case LOW:
 		op = addarg(op, vbool(PENUMBRAS) ? "-ps 4" : "-ps 8");
-		op = addarg(op, "-dp 64");
+		op = addarg(op, "-dp 256");
 		sprintf(op, " -ar %d", (int)(8*d));
 		op += strlen(op);
 		break;
 	case MEDIUM:
 		op = addarg(op, vbool(PENUMBRAS) ? "-ps 3" : "-ps 6");
-		op = addarg(op, "-dp 128");
+		op = addarg(op, "-dp 512");
 		sprintf(op, " -ar %d", (int)(16*d));
 		op += strlen(op);
 		break;
 	case HIGH:
 		op = addarg(op, vbool(PENUMBRAS) ? "-ps 2" : "-ps 4");
-		op = addarg(op, "-dp 256");
+		op = addarg(op, "-dp 1024");
 		sprintf(op, " -ar %d", (int)(32*d));
 		op += strlen(op);
 		break;
@@ -741,19 +741,19 @@ register char	*op;
 	switch (vscale(DETAIL)) {
 	case LOW:
 		op = addarg(op, vbool(PENUMBRAS) ? "-ps 1" : "-ps 8");
-		op = addarg(op, "-dp 256");
+		op = addarg(op, "-dp 1024");
 		sprintf(op, " -ar %d", (int)(16*d));
 		op += strlen(op);
 		break;
 	case MEDIUM:
 		op = addarg(op, vbool(PENUMBRAS) ? "-ps 1" : "-ps 5");
-		op = addarg(op, "-dp 512");
+		op = addarg(op, "-dp 2048");
 		sprintf(op, " -ar %d", (int)(32*d));
 		op += strlen(op);
 		break;
 	case HIGH:
 		op = addarg(op, vbool(PENUMBRAS) ? "-ps 1" : "-ps 3");
-		op = addarg(op, "-dp 1024");
+		op = addarg(op, "-dp 4096");
 		sprintf(op, " -ar %d", (int)(64*d));
 		op += strlen(op);
 		break;
@@ -1015,7 +1015,7 @@ char	*vn;		/* returned view name */
 printview(vopts)			/* print out selected view */
 register char	*vopts;
 {
-	extern char	*atos();
+	extern char	*atos(), *getenv();
 	char	buf[256];
 	FILE	*fp;
 	register char	*cp;
@@ -1050,8 +1050,18 @@ register char	*vopts;
 			while (isspace(*vopts))
 				vopts++;
 			putchar(' ');
-			while (*vopts && !isspace(*vopts))
-				putchar(*vopts++);
+#ifdef MSDOS
+			if (*vopts == '$') {		/* expand env. var. */
+				if (!*atos(buf, sizeof(buf), vopts+1))
+					return(-1);
+				if ((cp = getenv(buf)) == NULL)
+					return(-1);
+				fputs(cp, stdout);
+				vopts = sskip(vopts);
+			} else
+#endif
+				while (*vopts && !isspace(*vopts))
+					putchar(*vopts++);
 		}
 	} while (*vopts++);
 	putchar('\n');