--- ray/src/hd/rhd_ogl.c	2004/02/12 18:55:50	3.25
+++ ray/src/hd/rhd_ogl.c	2006/05/23 13:01:07	3.29
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rhd_ogl.c,v 3.25 2004/02/12 18:55:50 greg Exp $";
+static const char	RCSid[] = "$Id: rhd_ogl.c,v 3.29 2006/05/23 13:01:07 greg Exp $";
 #endif
 /*
  * OpenGL driver for holodeck display.
@@ -82,6 +82,8 @@ static const char	RCSid[] = "$Id: rhd_ogl.c,v 3.25 200
 
 struct driver	odev;			/* global device driver structure */
 
+TMstruct	*tmGlobal;		/* global tone-mapping structure */
+
 char odev_args[64];			/* command arguments */
 
 static GLfloat	*depthbuffer = NULL;	/* depth buffer */
@@ -209,7 +211,8 @@ char  *id;
 				&myprims[BLU][CIEX],&myprims[BLU][CIEY],
 				&myprims[WHT][CIEX],&myprims[WHT][CIEY]) >= 6)
 		dpri = myprims;
-	if (tmInit(mytmflags(), dpri, gamval) == NULL)
+	tmGlobal = tmInit(mytmflags(), dpri, gamval);
+	if (tmGlobal == NULL)
 		error(SYSTEM, "not enough memory in dev_open");
 					/* open window */
 	ourwinattr.background_pixel = ourblack;
@@ -232,8 +235,8 @@ char  *id;
 					/* set window manager hints */
 	ourxwmhints.flags = InputHint|IconPixmapHint;
 	ourxwmhints.input = True;
-	ourxwmhints.icon_pixmap = XCreateBitmapFromData(ourdisplay,
-			gwind, x11icon_bits, x11icon_width, x11icon_height);
+	ourxwmhints.icon_pixmap = XCreateBitmapFromData(ourdisplay, gwind,
+			(char *)x11icon_bits, x11icon_width, x11icon_height);
 	XSetWMHints(ourdisplay, gwind, &ourxwmhints);
 	oursizhints.min_width = MINWIDTH;
 #ifdef STEREO
@@ -299,7 +302,7 @@ dev_close(void)			/* close our display and free resour
 	gwind = 0;
 	XCloseDisplay(ourdisplay);
 	ourdisplay = NULL;
-	tmDone(NULL);
+	tmDone(tmGlobal);
 	odev.v.type = 0;
 	odev.hres = odev.vres = 0;
 	odev.ifd = -1;
@@ -321,6 +324,9 @@ dev_view(			/* assign new driver view */
 	register VIEW	*nv
 )
 {
+#ifdef STEREO
+	double	d;
+#endif
 	if (nv->type != VT_PER ||		/* check view legality */
 			nv->horiz > 160. || nv->vert > 160.) {
 		error(COMMAND, "illegal view type/angle");
@@ -816,15 +822,30 @@ getframe(				/* get focus frame */
 )
 {
 	int	startx = ebut->x, starty = ebut->y;
-	int	endx, endy;
-
+	int	endx, endy, midx, midy;
+	FVECT	odir, v1;
+	double	d, d1;
+						/* get mouse drag */
 	XMaskEvent(ourdisplay, ButtonReleaseMask, levptr(XEvent));
 	endx = levptr(XButtonReleasedEvent)->x;
 	endy = levptr(XButtonReleasedEvent)->y;
-	if ((endx == startx) | (endy == starty)) {
-		XBell(ourdisplay, 0);
+	midx = (startx + endx) >> 1;
+	midy = (starty + endy) >> 1;
+						/* set focus distance */
+	if (viewray(v1, odir, &odev.v,
+			(midx+.5)/odev.hres, (midy+.5)/odev.vres) < -FTINY)
 		return;
-	}
+	d = getdistance(midx, midy, odir);	/* distance from front plane */
+#ifdef DOBJ
+	d1 = dobj_trace(NULL, v1, odir);
+	if (d1 < d)
+		d = d1;
+#endif
+	if (d < .99*FHUGE)
+		odev.v.vdist = d + sqrt(dist2(v1, odev.v.vp));
+						/* set frame for rendering */
+	if ((endx == startx) | (endy == starty))
+		return;
 	if (endx < startx) {register int c = endx; endx = startx; startx = c;}
 	if (endy < starty) {register int c = endy; endy = starty; starty = c;}
 	sprintf(odev_args, "%.3f %.3f %.3f %.3f",