--- ray/src/hd/rhd_x11.c	1997/11/21 13:35:58	3.4
+++ ray/src/hd/rhd_x11.c	1997/11/25 11:21:50	3.8
@@ -212,6 +212,7 @@ int
 dev_input()			/* get X11 input */
 {
 	inpresflags = 0;
+
 	do
 		getevent();
 
@@ -431,7 +432,6 @@ XButtonPressedEvent	*ebut;
 	unsigned int	statemask;
 
 	qtMinNodesiz = 16;		/* for quicker update */
-	qtCompost(50);
 
 	do {
 		if (!XQueryPointer(ourdisplay, gwind, &rootw, &childw,
@@ -451,6 +451,7 @@ XButtonPressedEvent	*ebut;
 		wx = levptr(XButtonReleasedEvent)->x;
 		wy = levptr(XButtonReleasedEvent)->y;
 		moveview(wx, odev.vres-1-wy, MOVDIR(whichbutton));
+		dev_flush();
 	}
 
 	qtMinNodesiz = oldnodesiz;	/* restore quadtree resolution */
@@ -474,17 +475,34 @@ register XKeyPressedEvent  *ekey;
 	case 'H':			/* turn off height motion lock */
 		headlocked = 0;
 		return;
-	case CTRL('Z'):
+	case CTRL('S'):
 	case 'p':			/* pause computation */
 		inpresflags |= DEV_WAIT;
 		return;
+	case 'v':			/* spit out view */
+		fputs(VIEWSTR, stderr);
+		fprintview(&odev.v, stderr);
+		fputc('\n', stderr);
+		return;
+	case CTRL('Q'):
 	case '\n':
-	case '\r':			/* release */
+	case '\r':			/* resume computation */
+		inpresflags |= DEV_RESUME;
 		return;
-	case CTRL('R'):			/* redraw */
+	case CTRL('R'):			/* redraw screen */
 		if (ncolors > 0)
 			new_ctab(ncolors);
 		qtRedraw(0, 0, odev.hres, odev.vres);
+		return;
+	case CTRL('L'):			/* refresh from server */
+		if (inpresflags & DEV_REDRAW)
+			return;
+		XClearWindow(ourdisplay, gwind);
+		XFlush(ourdisplay);
+		qtCompost(100);			/* unload the old tree */
+		if (ncolors > 0)
+			new_ctab(ncolors);
+		inpresflags |= DEV_REDRAW;	/* resend values from server */
 		return;
 	case CTRL('D'):
 	case 'Q':