diff --git a/docs/rh-log.txt b/docs/rh-log.txt
index 437fbec8e..088f207c7 100644
--- a/docs/rh-log.txt
+++ b/docs/rh-log.txt
@@ -1,4 +1,8 @@
 February 6, 2009
+- Restored the old drawseg/sprite distance check from 2.0.63. The code that
+  replaced it did the check at the center of the area intersected by the
+  sprite and the drawseg, whereas 2.0.63 only did the check at the location
+  of the sprite on the map.
 - Commented out the CALL_ACTION(A_Look, actor) for targetless friendly
   monsters in A_DoChase(). They can still find new targets without this,
   and with it, they got stuck on the first frame of their see state.
diff --git a/src/r_bsp.h b/src/r_bsp.h
index 2a7469706..d82117cd0 100644
--- a/src/r_bsp.h
+++ b/src/r_bsp.h
@@ -35,6 +35,7 @@ struct drawseg_t
 	short		sx1, sx2;		// left, right of parent seg on screen
 	fixed_t		sz1, sz2;		// z for left, right of parent seg on screen
 	fixed_t		siz1, siz2;		// 1/z for left, right of parent seg on screen
+	fixed_t		cx, cy, cdx, cdy;
 	BYTE 		silhouette;		// 0=none, 1=bottom, 2=top, 3=both
 	BYTE		bFogBoundary;
 	int			shade;
diff --git a/src/r_defs.h b/src/r_defs.h
index 14bd40eca..5b70cdc31 100644
--- a/src/r_defs.h
+++ b/src/r_defs.h
@@ -915,6 +915,7 @@ struct vissprite_t
 	fixed_t			startfrac;		// horizontal position of x1
 	fixed_t			xscale, yscale;
 	fixed_t			xiscale;		// negative if flipped
+	fixed_t			depth;
 	fixed_t			idepth;			// 1/z
 	fixed_t			texturemid;
 	DWORD			FillColor;
diff --git a/src/r_segs.cpp b/src/r_segs.cpp
index 673a585a4..d2c7accdf 100644
--- a/src/r_segs.cpp
+++ b/src/r_segs.cpp
@@ -1533,6 +1533,10 @@ void R_StoreWallRange (int start, int stop)
 	ds_p->sx2 = WallSX2;
 	ds_p->sz1 = WallSZ1;
 	ds_p->sz2 = WallSZ2;
+	ds_p->cx = WallTX1;
+	ds_p->cy = WallTY1;
+	ds_p->cdx = WallTX2 - WallTX1;
+	ds_p->cdy = WallTY2 - WallTY1;
 	ds_p->siz1 = (DWORD)DivScale32 (1, WallSZ1) >> 1;
 	ds_p->siz2 = (DWORD)DivScale32 (1, WallSZ2) >> 1;
 	ds_p->x1 = rw_x = start;
diff --git a/src/r_things.cpp b/src/r_things.cpp
index 9c3279e79..52d721f60 100644
--- a/src/r_things.cpp
+++ b/src/r_things.cpp
@@ -1403,6 +1403,7 @@ void R_ProjectSprite (AActor *thing, int fakeside)
 	vis->FillColor = thing->fillcolor;
 	vis->xscale = xscale;
 	vis->yscale = Scale (InvZtoScale, yscale, tz)>>4;
+	vis->depth = tz;
 	vis->idepth = (DWORD)DivScale32 (1, tz) >> 1;	// tz is 20.12, so idepth ought to be 12.20, but
 	vis->cx = tx2;									// signed math makes it 13.19
 	vis->gx = fx;
@@ -2115,20 +2116,19 @@ void R_DrawSprite (vissprite_t *spr)
 		r1 = MAX<int> (ds->x1, spr->x1);
 		r2 = MIN<int> (ds->x2, spr->x2);
 
-		fixed_t nearidepth, faridepth;
-		if (ds->siz1 > ds->siz2)
+		fixed_t neardepth, fardepth;
+		if (ds->sz1 < ds->sz2)
 		{
-			nearidepth = ds->siz1, faridepth = ds->siz2;
+			neardepth = ds->sz1, fardepth = ds->sz2;
 		}
 		else
 		{
-			nearidepth = ds->siz2, faridepth = ds->siz1;
+			neardepth = ds->sz2, fardepth = ds->sz1;
 		}
-		// (siz2 - siz1)*(rx - sx1)/(sx2 - sx1)
-		// Lower values are further away
-		if (nearidepth < spr->idepth || (faridepth < spr->idepth &&
+		if (neardepth > spr->depth || (fardepth > spr->depth &&
 			// Check if sprite is in front of draw seg:
-			Scale (ds->siz2 - ds->siz1, (r1+r2)/2 - ds->sx1, ds->sx2 - ds->sx1) + ds->siz1 < spr->idepth))
+			DMulScale24 (spr->depth - ds->cy, ds->cdx, ds->cdy, ds->cx - spr->cx) < 0))
+
 		{
 			// seg is behind sprite, so draw the mid texture if it has one
 			if (ds->maskedtexturecol != -1 || ds->bFogBoundary)
@@ -2430,6 +2430,7 @@ void R_ProjectParticle (particle_t *particle, const sector_t *sector, int shade,
 	vis->xscale = xscale;
 //	vis->yscale = FixedMul (xscale, InvZtoScale);
 	vis->yscale = xscale;
+	vis->depth = tz;
 	vis->idepth = (DWORD)DivScale32 (1, tz) >> 1;
 	vis->cx = tx;
 	vis->gx = particle->x;