--- ray/src/hd/rhd_qtree.h	1997/11/25 16:52:04	3.5
+++ ray/src/hd/rhd_qtree.h	1998/01/01 13:00:15	3.9
@@ -8,6 +8,13 @@
 
 #include "tonemap.h"
 #include "rhdriver.h"
+
+#ifndef int2
+#define int2	short
+#endif
+#ifndef int4
+#define int4	int
+#endif
 				/* child ordering */
 #define	DL		0		/* down left */
 #define	DR		1		/* down right */
@@ -33,6 +40,7 @@ typedef struct rtree {
 
 extern struct rleaves {
 	float		(*wp)[3];	/* world intersection point array */
+	int4		*wd;		/* world direction array */
 	TMbright	*brt;		/* encoded brightness array */
 	BYTE		(*chr)[3];	/* encoded chrominance array */
 	BYTE		(*rgb)[3];	/* tone-mapped color array */
@@ -47,3 +55,8 @@ extern struct rleaves {
 extern RTREE	qtrunk;		/* trunk of quadtree */
 extern double	qtDepthEps;	/* epsilon to compare depths (z fraction) */
 extern int	qtMinNodesiz;	/* minimum node dimension (pixels) */
+
+extern int	rayqleft;	/* number of rays to queue before flush */
+
+extern int4	encodedir();
+extern double	fdir2diff(), dir2diff();