--- ray/src/hd/rhd_glx.c	1997/12/26 16:50:03	3.7
+++ ray/src/hd/rhd_glx.c	1997/12/30 16:59:46	3.9
@@ -100,6 +100,7 @@ char  *id;
 	XSizeHints	oursizhints;
 					/* set quadtree globals */
 	qtMinNodesiz = 3;
+	qtDepthEps = 0.07;
 					/* open display server */
 	ourdisplay = XOpenDisplay(NULL);
 	if (ourdisplay == NULL)
@@ -162,7 +163,7 @@ char  *id;
 	XMapWindow(ourdisplay, gwind);
 	dev_input();			/* sets size and view angles */
 					/* allocate our leaf pile */
-	if (!qtAllocLeaves(2 * DisplayWidth(ourdisplay,ourscreen) *
+	if (!qtAllocLeaves(DisplayWidth(ourdisplay,ourscreen) *
 			DisplayHeight(ourdisplay,ourscreen) /
 			(qtMinNodesiz*qtMinNodesiz)))
 		error(SYSTEM, "insufficient memory for value storage");
@@ -566,12 +567,20 @@ register XKeyPressedEvent  *ekey;
 		inpresflags |= DFL(DC_RESUME);
 		return;
 	case CTRL('R'):			/* redraw screen */
+		if (nxtzmax > FTINY) {
+			curzmax = nxtzmax;
+			nxtzmax = 0.;
+		}
 		glClear(GL_DEPTH_BUFFER_BIT);
 		qtRedraw(0, 0, odev.hres, odev.vres);
 		return;
 	case CTRL('L'):			/* refresh from server */
 		if (inpresflags & DFL(DC_REDRAW))
 			return;
+		if (nxtzmax > FTINY) {
+			curzmax = nxtzmax;
+			nxtzmax = 0.;
+		}
 		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 		draw_grids();
 		glFlush();