--- ray/src/util/do_file.tcl	1995/02/15 14:12:05	2.6
+++ ray/src/util/do_file.tcl	1995/09/21 10:29:12	2.11
@@ -8,7 +8,7 @@ set rif_glob *.rif
 proc preen {} {			# clean up radvar
 	global radvar rifname
 	foreach n {objects scene materials illum mkillum render oconv pfilt
-			AMBFILE OPTFILE EXPOSURE ZONE REPORT} {
+			RAWFILE ZFILE AMBFILE OPTFILE EXPOSURE ZONE REPORT} {
 		if {! [info exists radvar($n)]} {
 			set radvar($n) {}
 		}
@@ -19,7 +19,7 @@ proc preen {} {			# clean up radvar
 		set n 1
 		foreach v $oldval {
 			if {"[string index $v 0]" == "-"} {
-				lappend radvar(view) "$n $v"
+				lappend radvar(view) "u$n $v"
 			} elseif {[lsearch -glob $radvar(view) \
 					"[lindex $v 0] *"] >= 0} {
 				continue
@@ -100,6 +100,8 @@ proc setradvar stmt {		# assign a rad variable
 		PEN* { set radvar(PENUMBRAS) $vval }
 		VAR* { set radvar(VARIABILITY) $vval }
 		REP* { set radvar(REPORT) $vval }
+		RAW* { set radvar(RAWFILE) $vval }
+		ZF* {set radvar(ZFILE) $vval }
 	}
 		
 }
@@ -119,7 +121,7 @@ proc putradvar {fi vn} {	# print out a rad variable
 	}
 	if {[lsearch -exact {ZONE QUALITY OCTREE PICTURE AMBFILE OPTFILE
 			EXPOSURE RESOLUTION UP INDIRECT DETAIL PENUMBRAS
-			VARIABILITY REPORT} $vn] >= 0} {
+			RAWFILE ZFILE VARIABILITY REPORT} $vn] >= 0} {
 		puts $fi "$vn= $radvar($vn)"
 		return
 	}
@@ -167,7 +169,7 @@ proc load_vars {f {vl all}} {	# load RIF variables
 		set curmess {Project loaded.}
 	} else {
 		foreach n $vl {
-			set radvar($n) {}
+			catch {unset radvar($n)}
 		}
 		while {[gets $fi curli] != -1} {
 			if [regexp {^[a-zA-Z][a-zA-Z0-9]* *=} $curli] {