diff --git a/src/am_map.c b/src/am_map.c
index 6b97dd282042cb2a26493a68f921d4f0ec9d1261..5e73d2ec45880c2d1741442b97436f669ef1f296 100644
--- a/src/am_map.c
+++ b/src/am_map.c
@@ -11,8 +11,8 @@
 /// \file  am_map.c
 /// \brief Code for the 'automap', former Doom feature used for DEVMODE testing
 
-#include "g_game.h"
 #include "am_map.h"
+#include "g_game.h"
 #include "g_input.h"
 #include "p_local.h"
 #include "p_slopes.h"
@@ -33,7 +33,6 @@ static const UINT8 GRAYSRANGE  = 16;
 static const UINT8 BROWNS      = (3*16);
 static const UINT8 YELLOWS     = (7*16);
 static const UINT8 GREENS      = (10*16);
-static const UINT8 GREENRANGE  = 16;
 static const UINT8 DBLACK      = 31;
 static const UINT8 DWHITE      = 0;
 
@@ -50,8 +49,6 @@ static const UINT8 NOCLIMBYELLOWS     = (11*16);
 
 // Automap colors
 #define BACKGROUND            DBLACK
-#define YOURCOLORS            DWHITE
-#define YOURRANGE             0
 #define WALLCOLORS            (REDS + REDRANGE/2)
 #define WALLRANGE             (REDRANGE/2)
 #define NOCLIMBWALLCOLORS     (NOCLIMBREDS + NOCLIMBREDRANGE/2)
@@ -68,31 +65,23 @@ static const UINT8 NOCLIMBYELLOWS     = (11*16);
 #define CDWALLCOLORS          YELLOWS
 #define NOCLIMBCDWALLCOLORS   NOCLIMBYELLOWS
 #define THINGCOLORS           GREENS
-#define THINGRANGE            GREENRANGE
-#define SECRETWALLCOLORS      WALLCOLORS
-#define SECRETWALLRANGE       WALLRANGE
 #define GRIDCOLORS            (GRAYS + GRAYSRANGE/2)
-#define GRIDRANGE             0
 #define XHAIRCOLORS           GRAYS
 
-// drawing stuff
-#define FB 0
-
-#define AM_PANDOWNKEY   KEY_DOWNARROW
+// controls
 #define AM_PANUPKEY     KEY_UPARROW
-#define AM_PANRIGHTKEY  KEY_RIGHTARROW
+#define AM_PANDOWNKEY   KEY_DOWNARROW
 #define AM_PANLEFTKEY   KEY_LEFTARROW
+#define AM_PANRIGHTKEY  KEY_RIGHTARROW
+
 #define AM_ZOOMINKEY    '='
 #define AM_ZOOMOUTKEY   '-'
-#define AM_STARTKEY     KEY_TAB
-#define AM_ENDKEY       KEY_TAB
 #define AM_GOBIGKEY     '0'
+
 #define AM_FOLLOWKEY    'f'
 #define AM_GRIDKEY      'g'
-#define AM_MARKKEY      'm'
-#define AM_CLEARMARKKEY 'c'
 
-#define AM_NUMMARKPOINTS 10
+#define AM_TOGGLEKEY    KEY_TAB
 
 // scale on entry
 #define INITSCALEMTOF (FRACUNIT/5)
@@ -113,6 +102,9 @@ static const UINT8 NOCLIMBYELLOWS     = (11*16);
 #define CXMTOF(x) (f_x + MTOF((x)-m_x))
 #define CYMTOF(y) (f_y + (f_h - MTOF((y)-m_y)))
 
+#define MAPBITS (FRACBITS-4)
+#define FRACTOMAPBITS (FRACBITS-MAPBITS)
+
 typedef struct
 {
 	fixed_t x, y;
@@ -133,7 +125,10 @@ typedef struct
 // A line drawing of the player pointing right,
 //   starting from the middle.
 //
+
+#define PLAYERRADIUS (16*(1<<MAPBITS))
 #define R ((8*PLAYERRADIUS)/7)
+
 static const mline_t player_arrow[] = {
 	{ { -R+R/8, 0 }, { R, 0 } }, // -----
 	{ { R, 0 }, { R-R/2, R/4 } }, // ----->
@@ -166,27 +161,15 @@ static const mline_t thintriangle_guy[] = {
 #undef R
 #define NUMTHINTRIANGLEGUYLINES (sizeof (thintriangle_guy)/sizeof (mline_t))
 
-static INT32 bigstate; //added : 24-01-98 : moved here, toggle between
-                     // user view and large view (full map view)
-
-static INT32 grid = 0;
-
-static INT32 leveljuststarted = 1; // kluge until AM_LevelInit() is called
+static boolean bigstate;	// user view and large view (full map view)
+static boolean draw_grid = false;
 
 boolean automapactive = false;
 boolean am_recalc = false; //added : 05-02-98 : true when screen size changes
+static boolean am_stopped = true;
 
-// location of window on screen
-static INT32 f_x;
-static INT32 f_y;
-
-// size of window on screen
-static INT32 f_w;
-static INT32 f_h;
-
-static INT32 lightlev; // used for funky strobing effect
-static UINT8 *fb; // pseudo-frame buffer
-static INT32 amclock;
+static INT32 f_x, f_y;	// location of window on screen (always zero for both)
+static INT32 f_w, f_h;	// size of window on screen (always the screen width and height respectively)
 
 static mpoint_t m_paninc; // how far the window pans each tic (map coords)
 static fixed_t mtof_zoommul; // how far the window zooms in each tic (map coords)
@@ -210,11 +193,6 @@ static fixed_t max_y;
 static fixed_t max_w; // max_x-min_x,
 static fixed_t max_h; // max_y-min_y
 
-// based on player size
-static fixed_t min_w;
-static fixed_t min_h;
-
-
 static fixed_t min_scale_mtof; // used to tell when to stop zooming out
 static fixed_t max_scale_mtof; // used to tell when to stop zooming in
 
@@ -232,13 +210,7 @@ static fixed_t scale_ftom;
 
 static player_t *plr; // the player represented by an arrow
 
-static patch_t *marknums[10];                   // numbers used for marking by the automap
-static mpoint_t markpoints[AM_NUMMARKPOINTS];   // where the points are
-static INT32 markpointnum = 0;                    // next point to be assigned
-
-static INT32 followplayer = 1; // specifies whether to follow the player around
-
-static boolean stopped = true;
+static INT32 followplayer = true; // specifies whether to follow the player around
 
 // function for drawing lines, depends on rendermode
 typedef void (*AMDRAWFLINEFUNC) (const fline_t *fl, INT32 color);
@@ -277,8 +249,8 @@ static inline void AM_restoreScaleAndLoc(void)
 	}
 	else
 	{
-		m_x = plr->mo->x - m_w/2;
-		m_y = plr->mo->y - m_h/2;
+		m_x = (plr->mo->x >> FRACTOMAPBITS) - m_w/2;
+		m_y = (plr->mo->y >> FRACTOMAPBITS) - m_h/2;
 	}
 	m_x2 = m_x + m_w;
 	m_y2 = m_y + m_h;
@@ -288,15 +260,6 @@ static inline void AM_restoreScaleAndLoc(void)
 	scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
 }
 
-/** Adds a marker at the current location.
-  */
-static inline void AM_addMark(void)
-{
-	markpoints[markpointnum].x = m_x + m_w/2;
-	markpoints[markpointnum].y = m_y + m_h/2;
-	markpointnum = (markpointnum + 1) % AM_NUMMARKPOINTS;
-}
-
 /** Determines the bounding box around all vertices.
   * This is used to set global variables controlling the zoom range.
   */
@@ -322,11 +285,8 @@ static void AM_findMinMaxBoundaries(void)
 			max_y = vertexes[i].y;
 	}
 
-	max_w = max_x - min_x;
-	max_h = max_y - min_y;
-
-	min_w = 2*PLAYERRADIUS; // const? never changed?
-	min_h = 2*PLAYERRADIUS;
+	max_w = (max_x >>= FRACTOMAPBITS) - (min_x >>= FRACTOMAPBITS);
+	max_h = (max_y >>= FRACTOMAPBITS) - (min_y >>= FRACTOMAPBITS);
 
 	a = FixedDiv(f_w<<FRACBITS, max_w);
 	b = FixedDiv(f_h<<FRACBITS, max_h);
@@ -339,7 +299,7 @@ static void AM_changeWindowLoc(void)
 {
 	if (m_paninc.x || m_paninc.y)
 	{
-		followplayer = 0;
+		followplayer = false;
 		f_oldloc.x = INT32_MAX;
 	}
 
@@ -365,11 +325,7 @@ static void AM_initVariables(void)
 	INT32 pnum;
 
 	automapactive = true;
-	fb = screens[0];
-
 	f_oldloc.x = INT32_MAX;
-	amclock = 0;
-	lightlev = 0;
 
 	m_paninc.x = m_paninc.y = 0;
 	ftom_zoommul = FRACUNIT;
@@ -385,8 +341,11 @@ static void AM_initVariables(void)
 				break;
 
 	plr = &players[pnum];
-	m_x = plr->mo->x - m_w/2;
-	m_y = plr->mo->y - m_h/2;
+	if (plr != NULL && plr->mo != NULL)
+	{
+		m_x = (plr->mo->x >> FRACTOMAPBITS) - m_w/2;
+		m_y = (plr->mo->y >> FRACTOMAPBITS) - m_h/2;
+	}
 	AM_changeWindowLoc();
 
 	// for saving & restoring
@@ -396,41 +355,21 @@ static void AM_initVariables(void)
 	old_m_h = m_h;
 }
 
-static const UINT8 *maplump; // pointer to the raw data for the automap background.
-
-/** Clears all map markers.
-  */
-static void AM_clearMarks(void)
-{
-	INT32 i;
-
-	for (i = 0; i < AM_NUMMARKPOINTS; i++)
-		markpoints[i].x = -1; // means empty
-	markpointnum = 0;
-}
-
 //
 // should be called at the start of every level
 // right now, i figure it out myself
 //
 static void AM_LevelInit(void)
 {
-	leveljuststarted = 0;
-
 	f_x = f_y = 0;
 	f_w = vid.width;
 	f_h = vid.height;
 
-	if (rendermode == render_soft)
-		AM_drawFline = AM_drawFline_soft;
-#ifdef HWRENDER // not win32 only 19990829 by Kin
-	else if (rendermode != render_none)
+	AM_drawFline = AM_drawFline_soft;
+#ifdef HWRENDER
+	if (rendermode == render_opengl)
 		AM_drawFline = HWR_drawAMline;
 #endif
-	else
-		I_Error("Automap can't run without a render system");
-
-	AM_clearMarks();
 
 	AM_findMinMaxBoundaries();
 	scale_mtof = FixedDiv(min_scale_mtof*10, 7*FRACUNIT);
@@ -446,7 +385,7 @@ static void AM_LevelInit(void)
 void AM_Stop(void)
 {
 	automapactive = false;
-	stopped = true;
+	am_stopped = true;
 }
 
 /** Enables automap.
@@ -457,15 +396,14 @@ static inline void AM_Start(void)
 {
 	static INT32 lastlevel = -1;
 
-	if (!stopped)
+	if (!am_stopped)
 		AM_Stop();
-	stopped = false;
+	am_stopped = false;
 	if (lastlevel != gamemap || am_recalc) // screen size changed
 	{
-		am_recalc = false;
-
 		AM_LevelInit();
 		lastlevel = gamemap;
+		am_recalc = false;
 	}
 	AM_initVariables();
 }
@@ -503,7 +441,7 @@ boolean AM_Responder(event_t *ev)
 	{
 		if (!automapactive)
 		{
-			if (ev->type == ev_keydown && ev->data1 == AM_STARTKEY)
+			if (ev->type == ev_keydown && ev->data1 == AM_TOGGLEKEY)
 			{
 				//faB: prevent alt-tab in win32 version to activate automap just before
 				//     minimizing the app; doesn't do any harm to the DOS version
@@ -515,10 +453,8 @@ boolean AM_Responder(event_t *ev)
 				}
 			}
 		}
-
 		else if (ev->type == ev_keydown)
 		{
-
 			rc = true;
 			switch (ev->data1)
 			{
@@ -554,7 +490,7 @@ boolean AM_Responder(event_t *ev)
 					mtof_zoommul = M_ZOOMIN;
 					ftom_zoommul = M_ZOOMOUT;
 					break;
-				case AM_ENDKEY:
+				case AM_TOGGLEKEY:
 					AM_Stop();
 					break;
 				case AM_GOBIGKEY:
@@ -572,13 +508,7 @@ boolean AM_Responder(event_t *ev)
 					f_oldloc.x = INT32_MAX;
 					break;
 				case AM_GRIDKEY:
-					grid = !grid;
-					break;
-				case AM_MARKKEY:
-					AM_addMark();
-					break;
-				case AM_CLEARMARKKEY:
-					AM_clearMarks();
+					draw_grid = !draw_grid;
 					break;
 				default:
 					rc = false;
@@ -632,8 +562,8 @@ static inline void AM_doFollowPlayer(void)
 {
 	if (f_oldloc.x != plr->mo->x || f_oldloc.y != plr->mo->y)
 	{
-		m_x = FTOM(MTOF(plr->mo->x)) - m_w/2;
-		m_y = FTOM(MTOF(plr->mo->y)) - m_h/2;
+		m_x = FTOM(MTOF(plr->mo->x >> FRACTOMAPBITS)) - m_w/2;
+		m_y = FTOM(MTOF(plr->mo->y >> FRACTOMAPBITS)) - m_h/2;
 		m_x2 = m_x + m_w;
 		m_y2 = m_y + m_h;
 		f_oldloc.x = plr->mo->x;
@@ -651,8 +581,6 @@ void AM_Ticker(void)
 	if (dedicated || !automapactive)
 		return;
 
-	amclock++;
-
 	if (followplayer)
 		AM_doFollowPlayer();
 
@@ -671,72 +599,7 @@ void AM_Ticker(void)
   */
 static void AM_clearFB(INT32 color)
 {
-#ifdef HWRENDER
-	if (rendermode != render_soft && rendermode != render_none)
-	{
-		HWR_clearAutomap();
-		return;
-	}
-#endif
-
-	if (!maplump)
-		memset(fb, color, f_w*f_h*vid.bpp);
-	else
-	{
-		INT32 dmapx, dmapy, i, y;
-		static INT32 mapxstart, mapystart;
-		UINT8 *dest = screens[0];
-		const UINT8 *src;
-#define MAPLUMPHEIGHT (200 - 42)
-
-		if (followplayer)
-		{
-			static vertex_t oldplr;
-
-			dmapx = MTOF(plr->mo->x) - MTOF(oldplr.x); //fixed point
-			dmapy = MTOF(oldplr.y) - MTOF(plr->mo->y);
-
-			oldplr.x = plr->mo->x;
-			oldplr.y = plr->mo->y;
-			mapxstart += dmapx>>1;
-			mapystart += dmapy>>1;
-
-			while (mapxstart >= BASEVIDWIDTH)
-				mapxstart -= BASEVIDWIDTH;
-			while (mapxstart < 0)
-				mapxstart += BASEVIDWIDTH;
-			while (mapystart >= MAPLUMPHEIGHT)
-				mapystart -= MAPLUMPHEIGHT;
-			while (mapystart < 0)
-				mapystart += MAPLUMPHEIGHT;
-		}
-		else
-		{
-			mapxstart += (MTOF(m_paninc.x)>>1);
-			mapystart -= (MTOF(m_paninc.y)>>1);
-			if (mapxstart >= BASEVIDWIDTH)
-				mapxstart -= BASEVIDWIDTH;
-			if (mapxstart < 0)
-				mapxstart += BASEVIDWIDTH;
-			if (mapystart >= MAPLUMPHEIGHT)
-				mapystart -= MAPLUMPHEIGHT;
-			if (mapystart < 0)
-				mapystart += MAPLUMPHEIGHT;
-		}
-
-		//blit the automap background to the screen.
-		for (y = 0; y < f_h; y++)
-		{
-			src = maplump + mapxstart + (y + mapystart)*BASEVIDWIDTH;
-			for (i = 0; i < BASEVIDWIDTH*vid.dupx; i++)
-			{
-				while (src > maplump + BASEVIDWIDTH*MAPLUMPHEIGHT)
-					src -= BASEVIDWIDTH*MAPLUMPHEIGHT;
-				*dest++ = *src++;
-			}
-			dest += vid.width - vid.dupx*BASEVIDWIDTH;
-		}
-	}
+	V_DrawFill(f_x, f_y, f_w, f_h, color|V_NOSCALESTART);
 }
 
 /** Performs automap clipping of lines.
@@ -871,7 +734,7 @@ static boolean AM_clipMline(const mline_t *ml, fline_t *fl)
 //
 static void AM_drawFline_soft(const fline_t *fl, INT32 color)
 {
-	register INT32 x, y, dx, dy, sx, sy, ax, ay, d;
+	INT32 x, y, dx, dy, sx, sy, ax, ay, d;
 
 #ifdef _DEBUG
 	static INT32 num = 0;
@@ -887,7 +750,7 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color)
 	}
 #endif
 
-#define PUTDOT(xx,yy,cc) fb[(yy)*f_w + (xx)]=(UINT8)(cc)
+	#define PUTDOT(xx,yy,cc) V_DrawFill(xx,yy,1,1,cc|V_NOSCALESTART);
 
 	dx = fl->b.x - fl->a.x;
 	ax = 2 * (dx < 0 ? -dx : dx);
@@ -905,7 +768,7 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color)
 		d = ay - ax/2;
 		for (;;)
 		{
-			PUTDOT(x, y, color);
+			PUTDOT(x, y, color)
 			if (x == fl->b.x)
 				return;
 			if (d >= 0)
@@ -922,7 +785,7 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color)
 		d = ax - ay/2;
 		for (;;)
 		{
-			PUTDOT(x, y, color);
+			PUTDOT(x, y, color)
 			if (y == fl->b.y)
 				return;
 			if (d >= 0)
@@ -934,6 +797,8 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color)
 			d += ax;
 		}
 	}
+
+	#undef PUTDOT
 }
 
 //
@@ -1004,15 +869,15 @@ static inline void AM_drawWalls(void)
 
 	for (i = 0; i < numlines; i++)
 	{
-		l.a.x = lines[i].v1->x;
-		l.a.y = lines[i].v1->y;
-		l.b.x = lines[i].v2->x;
-		l.b.y = lines[i].v2->y;
+		l.a.x = lines[i].v1->x >> FRACTOMAPBITS;
+		l.a.y = lines[i].v1->y >> FRACTOMAPBITS;
+		l.b.x = lines[i].v2->x >> FRACTOMAPBITS;
+		l.b.y = lines[i].v2->y >> FRACTOMAPBITS;
 #ifdef ESLOPE
 #define SLOPEPARAMS(slope, end1, end2, normalheight) \
 		if (slope) { \
-			end1 = P_GetZAt(slope, l.a.x, l.a.y); \
-			end2 = P_GetZAt(slope, l.b.x, l.b.y); \
+			end1 = P_GetZAt(slope, lines[i].v1->x, lines[i].v1->y); \
+			end2 = P_GetZAt(slope, lines[i].v2->x, lines[i].v2->y); \
 		} else \
 			end1 = end2 = normalheight;
 
@@ -1025,17 +890,12 @@ static inline void AM_drawWalls(void)
 #undef SLOPEPARAMS
 #endif
 
-//		AM_drawMline(&l, GRAYS + 3); // Old, everything-is-gray automap
 		if (!lines[i].backsector) // 1-sided
 		{
 			if (lines[i].flags & ML_NOCLIMB)
-			{
-				AM_drawMline(&l, NOCLIMBWALLCOLORS+lightlev);
-			}
+				AM_drawMline(&l, NOCLIMBWALLCOLORS);
 			else
-			{
-				AM_drawMline(&l, WALLCOLORS+lightlev);
-			}
+				AM_drawMline(&l, WALLCOLORS);
 		}
 #ifdef ESLOPE
 		else if ((backf1 == backc1 && backf2 == backc2) // Back is thok barrier
@@ -1052,24 +912,16 @@ static inline void AM_drawWalls(void)
 #endif
 			{
 				if (lines[i].flags & ML_NOCLIMB)
-				{
-					AM_drawMline(&l, NOCLIMBTSWALLCOLORS+lightlev);
-				}
+					AM_drawMline(&l, NOCLIMBTSWALLCOLORS);
 				else
-				{
-					AM_drawMline(&l, TSWALLCOLORS+lightlev);
-				}
+					AM_drawMline(&l, TSWALLCOLORS);
 			}
 			else
 			{
 				if (lines[i].flags & ML_NOCLIMB)
-				{
-					AM_drawMline(&l, NOCLIMBTHOKWALLCOLORS+lightlev);
-				}
+					AM_drawMline(&l, NOCLIMBTHOKWALLCOLORS);
 				else
-				{
-					AM_drawMline(&l, THOKWALLCOLORS+lightlev);
-				}
+					AM_drawMline(&l, THOKWALLCOLORS);
 			}
 		}
 		else
@@ -1081,7 +933,7 @@ static inline void AM_drawWalls(void)
 				if (lines[i].backsector->floorheight
 						!= lines[i].frontsector->floorheight) {
 #endif
-					AM_drawMline(&l, NOCLIMBFDWALLCOLORS + lightlev); // floor level change
+					AM_drawMline(&l, NOCLIMBFDWALLCOLORS); // floor level change
 				}
 #ifdef ESLOPE
 				else if (backc1 != frontc1 || backc2 != frontc2) {
@@ -1089,11 +941,10 @@ static inline void AM_drawWalls(void)
 				else if (lines[i].backsector->ceilingheight
 						!= lines[i].frontsector->ceilingheight) {
 #endif
-					AM_drawMline(&l, NOCLIMBCDWALLCOLORS+lightlev); // ceiling level change
-				}
-				else {
-					AM_drawMline(&l, NOCLIMBTSWALLCOLORS+lightlev);
+					AM_drawMline(&l, NOCLIMBCDWALLCOLORS); // ceiling level change
 				}
+				else
+					AM_drawMline(&l, NOCLIMBTSWALLCOLORS);
 			}
 			else
 			{
@@ -1103,7 +954,7 @@ static inline void AM_drawWalls(void)
 				if (lines[i].backsector->floorheight
 						!= lines[i].frontsector->floorheight) {
 #endif
-					AM_drawMline(&l, FDWALLCOLORS + lightlev); // floor level change
+					AM_drawMline(&l, FDWALLCOLORS); // floor level change
 				}
 #ifdef ESLOPE
 				else if (backc1 != frontc1 || backc2 != frontc2) {
@@ -1111,11 +962,10 @@ static inline void AM_drawWalls(void)
 				else if (lines[i].backsector->ceilingheight
 						!= lines[i].frontsector->ceilingheight) {
 #endif
-					AM_drawMline(&l, CDWALLCOLORS+lightlev); // ceiling level change
-				}
-				else {
-					AM_drawMline(&l, TSWALLCOLORS+lightlev);
+					AM_drawMline(&l, CDWALLCOLORS); // ceiling level change
 				}
+				else
+					AM_drawMline(&l, TSWALLCOLORS);
 			}
 		}
 	}
@@ -1176,6 +1026,11 @@ static void AM_drawLineCharacter(const mline_t *lineguy, size_t lineguylines, fi
 		l.b.x += x;
 		l.b.y += y;
 
+		l.a.x >>= FRACTOMAPBITS;
+		l.a.y >>= FRACTOMAPBITS;
+		l.b.x >>= FRACTOMAPBITS;
+		l.b.y >>= FRACTOMAPBITS;
+
 		AM_drawMline(&l, color);
 	}
 }
@@ -1184,83 +1039,51 @@ static inline void AM_drawPlayers(void)
 {
 	INT32 i;
 	player_t *p;
-	INT32 color;
+	INT32 color = GREENS;
 
 	if (!multiplayer)
 	{
-		AM_drawLineCharacter(player_arrow, NUMPLYRLINES, 0,
-			plr->mo->angle, DWHITE, plr->mo->x, plr->mo->y);
+		AM_drawLineCharacter(player_arrow, NUMPLYRLINES, 0, plr->mo->angle, DWHITE, plr->mo->x, plr->mo->y);
 		return;
 	}
 
-	// multiplayer
+	// multiplayer (how??)
 	for (i = 0; i < MAXPLAYERS; i++)
 	{
 		if (!playeringame[i] || players[i].spectator)
 			continue;
 
 		p = &players[i];
-		if (p->skincolor == 0)
-			color = GREENS;
-		else
+		if (p->skincolor > 0)
 			color = R_GetTranslationColormap(TC_DEFAULT, p->skincolor, GTC_CACHE)[GREENS + 8];
 
-		AM_drawLineCharacter(player_arrow, NUMPLYRLINES, 0, p->mo->angle,
-			color, p->mo->x, p->mo->y);
+		AM_drawLineCharacter(player_arrow, NUMPLYRLINES, 0, p->mo->angle, color, p->mo->x, p->mo->y);
 	}
 }
 
-static inline void AM_drawThings(INT32 colors, INT32 colorrange)
+static inline void AM_drawThings(UINT8 colors)
 {
 	size_t i;
 	mobj_t *t;
 
-	(void)colorrange;
 	for (i = 0; i < numsectors; i++)
 	{
 		t = sectors[i].thinglist;
 		while (t)
 		{
-			AM_drawLineCharacter(thintriangle_guy, NUMTHINTRIANGLEGUYLINES,
-				16<<FRACBITS, t->angle, colors + lightlev, t->x, t->y);
+			AM_drawLineCharacter(thintriangle_guy, NUMTHINTRIANGLEGUYLINES, 16<<FRACBITS, t->angle, colors, t->x, t->y);
 			t = t->snext;
 		}
 	}
 }
 
-static inline void AM_drawMarks(void)
-{
-	INT32 i, fx, fy, w, h;
-
-	for (i = 0; i < AM_NUMMARKPOINTS; i++)
-	{
-		if (markpoints[i].x != -1 && marknums[i])
-		{
-			// w = SHORT(marknums[i]->width);
-			// h = SHORT(marknums[i]->height);
-			w = 5; // because something's wrong with the wad, i guess
-			h = 6; // because something's wrong with the wad, i guess
-			fx = CXMTOF(markpoints[i].x);
-			fy = CYMTOF(markpoints[i].y);
-			if (fx >= f_x && fx <= f_w - w && fy >= f_y && fy <= f_h - h)
-				V_DrawPatch(fx, fy, FB, marknums[i]);
-		}
-	}
-}
-
 /** Draws the crosshair, actually just a dot in software mode.
   *
   * \param color Color for the crosshair.
   */
-static inline void AM_drawCrosshair(INT32 color)
+static inline void AM_drawCrosshair(UINT8 color)
 {
-	if (rendermode != render_soft)
-		return; // BP: should be putpixel here
-
-	if (scr_bpp == 1)
-		fb[(f_w*(f_h + 1))/2] = (UINT8)color; // single point for now
-	else
-		*((INT16 *)(void *)fb + (f_w*(f_h + 1))/2) = (INT16)color;
+	V_DrawFill(f_w/2 + f_x, f_h/2 + f_y, 1, 1, color|V_NOSCALESTART);
 }
 
 /** Draws the automap.
@@ -1271,13 +1094,10 @@ void AM_Drawer(void)
 		return;
 
 	AM_clearFB(BACKGROUND);
-	if (grid)
-		AM_drawGrid(GRIDCOLORS);
+	if (draw_grid) AM_drawGrid(GRIDCOLORS);
 	AM_drawWalls();
 	AM_drawPlayers();
-	AM_drawThings(THINGCOLORS, THINGRANGE);
+	AM_drawThings(THINGCOLORS);
 
 	AM_drawCrosshair(XHAIRCOLORS);
-
-	AM_drawMarks();
 }
diff --git a/src/console.c b/src/console.c
index 2c148bc69c6361b510814ec728348710954f8a76..11bf4cb11ab3143f30e7f64fd8bc817f694330cd 100644
--- a/src/console.c
+++ b/src/console.c
@@ -58,10 +58,7 @@ static boolean consoleready;  // console prompt is ready
        INT32 con_destlines; // vid lines used by console at final position
 static INT32 con_curlines;  // vid lines currently used by console
 
-       INT32 con_clipviewtop; // clip value for planes & sprites, so that the
-                            // part of the view covered by the console is not
-                            // drawn when not needed, this must be -1 when
-                            // console is off
+       INT32 con_clipviewtop; // (useless)
 
 static INT32 con_hudlines;        // number of console heads up message lines
 static INT32 con_hudtime[MAXHUDLINES];      // remaining time of display for hud msg lines
diff --git a/src/d_main.c b/src/d_main.c
index 23835136ac0c3867a23a7e2c6bf8d5ee514c5e6f..df422232eb1bda8ec0129b30a62c2c7dc190be5b 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -319,8 +319,7 @@ static void D_Display(void)
 			if (!gametic)
 				break;
 			HU_Erase();
-			if (automapactive)
-				AM_Drawer();
+			AM_Drawer();
 			break;
 
 		case GS_INTERMISSION:
@@ -374,12 +373,10 @@ static void D_Display(void)
 			break;
 	}
 
-	// clean up border stuff
-	// see if the border needs to be initially drawn
 	if (gamestate == GS_LEVEL)
 	{
 		// draw the view directly
-		if (!automapactive && !dedicated && cv_renderview.value)
+		if (cv_renderview.value && !automapactive)
 		{
 			if (players[displayplayer].mo || players[displayplayer].playerstate == PST_DEAD)
 			{
@@ -437,7 +434,6 @@ static void D_Display(void)
 		}
 
 		ST_Drawer();
-
 		HU_Drawer();
 	}
 
diff --git a/src/d_netcmd.c b/src/d_netcmd.c
index 8abfb8709e140e6bf4f7441bc89b15b66c8143d9..bc6417268f44cb5d45be9e2f50922b2f213b87fd 100644
--- a/src/d_netcmd.c
+++ b/src/d_netcmd.c
@@ -3440,7 +3440,7 @@ static void Command_Version_f(void)
 #elif defined(__linux__)
 	CONS_Printf("Linux ");
 #elif defined(MACOSX)
-	CONS_Printf("macOS" );
+	CONS_Printf("macOS ");
 #elif defined(UNIXCOMMON)
 	CONS_Printf("Unix (Common) ");
 #else
@@ -3465,6 +3465,11 @@ static void Command_Version_f(void)
 	CONS_Printf("\x85" "DEBUG " "\x80");
 #endif
 
+	// DEVELOP build
+#ifdef DEVELOP
+	CONS_Printf("\x87" "DEVELOP " "\x80");
+#endif
+
 	CONS_Printf("\n");
 }
 
diff --git a/src/hardware/hw_draw.c b/src/hardware/hw_draw.c
index 75523f3d2cfd5efceab6e46a85527f4d332b5c55..3963fd931f6449cf64573965a500355e40a085e0 100644
--- a/src/hardware/hw_draw.c
+++ b/src/hardware/hw_draw.c
@@ -770,18 +770,6 @@ void HWR_DrawViewBorder(INT32 clearlines)
 //                                                     AM_MAP.C DRAWING STUFF
 // ==========================================================================
 
-// Clear the automap part of the screen
-void HWR_clearAutomap(void)
-{
-	FRGBAFloat fColor = {0, 0, 0, 1};
-
-	// minx,miny,maxx,maxy
-	HWD.pfnGClipRect(0, 0, vid.width, vid.height, NZCLIP_PLANE);
-	HWD.pfnClearBuffer(true, true, &fColor);
-	HWD.pfnGClipRect(0, 0, vid.width, vid.height, NZCLIP_PLANE);
-}
-
-
 // -----------------+
 // HWR_drawAMline   : draw a line of the automap (the clipping is already done in automap code)
 // Arg              : color is a RGB 888 value
diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index fb5e2a71639c8caf154930511b8dcf3e4914a805..db679223d37faee4d1dc889cc6604fd8599c66be 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -4334,6 +4334,16 @@ static void HWR_SplitSprite(gr_vissprite_t *spr)
 		wallVerts[0].tow = wallVerts[1].tow = gpatch->max_t;
 	}
 
+	// if it has a dispoffset, push it a little towards the camera
+	if (spr->dispoffset) {
+		float co = -gr_viewcos*(0.05f*spr->dispoffset);
+		float si = -gr_viewsin*(0.05f*spr->dispoffset);
+		wallVerts[0].z = wallVerts[3].z = wallVerts[0].z+si;
+		wallVerts[1].z = wallVerts[2].z = wallVerts[1].z+si;
+		wallVerts[0].x = wallVerts[3].x = wallVerts[0].x+co;
+		wallVerts[1].x = wallVerts[2].x = wallVerts[1].x+co;
+	}
+
 	realtop = top = wallVerts[3].y;
 	realbot = bot = wallVerts[0].y;
 	towtop = wallVerts[3].tow;
@@ -4635,6 +4645,16 @@ static void HWR_DrawSprite(gr_vissprite_t *spr)
 		HWR_DrawSpriteShadow(spr, gpatch, this_scale);
 	}
 
+	// if it has a dispoffset, push it a little towards the camera
+	if (spr->dispoffset) {
+		float co = -gr_viewcos*(0.05f*spr->dispoffset);
+		float si = -gr_viewsin*(0.05f*spr->dispoffset);
+		wallVerts[0].z = wallVerts[3].z = wallVerts[0].z+si;
+		wallVerts[1].z = wallVerts[2].z = wallVerts[1].z+si;
+		wallVerts[0].x = wallVerts[3].x = wallVerts[0].x+co;
+		wallVerts[1].x = wallVerts[2].x = wallVerts[1].x+co;
+	}
+
 	// This needs to be AFTER the shadows so that the regular sprites aren't drawn completely black.
 	// sprite lighting by modulating the RGB components
 	/// \todo coloured
diff --git a/src/hardware/hw_main.h b/src/hardware/hw_main.h
index b0a14d3b58640b3d43ec10e91cb5de75b1f70a93..c72843715d3d09769833f9d5d66faf5495eebaa7 100644
--- a/src/hardware/hw_main.h
+++ b/src/hardware/hw_main.h
@@ -31,7 +31,6 @@
 void HWR_Startup(void);
 void HWR_Shutdown(void);
 
-void HWR_clearAutomap(void);
 void HWR_drawAMline(const fline_t *fl, INT32 color);
 void HWR_FadeScreenMenuBack(UINT32 color, INT32 height);
 void HWR_DrawConsoleBack(UINT32 color, INT32 height);
diff --git a/src/p_local.h b/src/p_local.h
index e09b495174c8a65e51a3bcf8953790f4a52ecc37..9164fa7a0554868ddedb6e6ab9b228c3fe2e5ab4 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -41,9 +41,6 @@
 // Convenience macro to fix issue with collision along bottom/left edges of blockmap -Red
 #define BMBOUNDFIX(xl, xh, yl, yh) {if (xl > xh) xl = 0; if (yl > yh) yl = 0;}
 
-// player radius used only in am_map.c
-#define PLAYERRADIUS (16*FRACUNIT)
-
 // MAXRADIUS is for precalculated sector block boxes
 // the spider demon is larger,
 // but we do not have any moving sectors nearby
diff --git a/src/p_setup.c b/src/p_setup.c
index 93eb755831b0f3eac78484c2f44edb25beb6a974..2e56880032f8cef596f11f2805205e03d945e212 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -2000,7 +2000,7 @@ static boolean P_LoadRawBlockMap(UINT8 *data, size_t count, const char *lumpname
 	if (!count || count >= 0x20000)
 		return false;
 
-	CONS_Printf("Reading blockmap lump for pk3...\n");
+	//CONS_Printf("Reading blockmap lump for pk3...\n");
 
 	// no need to malloc anything, assume the data is uncompressed for now
 	count /= 2;
diff --git a/src/r_bsp.c b/src/r_bsp.c
index 3554382725762d074aba48084669bd5693b38467..a41c6403c7b07145a8b11552175b0c3b13d7cf24 100644
--- a/src/r_bsp.c
+++ b/src/r_bsp.c
@@ -1119,7 +1119,6 @@ static void R_Subsector(size_t num)
 				}
 
 				light = R_GetPlaneLight(frontsector, polysec->floorheight, viewz < polysec->floorheight);
-				light = 0;
 				ffloor[numffloors].plane = R_FindPlane(polysec->floorheight, polysec->floorpic,
 						polysec->lightlevel, xoff, yoff,
 						polysec->floorpic_angle-po->angle,
@@ -1167,7 +1166,6 @@ static void R_Subsector(size_t num)
 				}
 
 				light = R_GetPlaneLight(frontsector, polysec->ceilingheight, viewz < polysec->ceilingheight);
-				light = 0;
 				ffloor[numffloors].plane = R_FindPlane(polysec->ceilingheight, polysec->ceilingpic,
 					polysec->lightlevel, xoff, yoff, polysec->ceilingpic_angle-po->angle,
 					NULL, NULL
diff --git a/src/r_main.c b/src/r_main.c
index 23eff452cf96f9f46c2db5cf084c032280e9ebcf..2b0fbc39df4143c54ea4bb76d8adb81e83bfe2cd 100644
--- a/src/r_main.c
+++ b/src/r_main.c
@@ -551,13 +551,11 @@ void R_SetViewSize(void)
 //
 void R_ExecuteSetViewSize(void)
 {
-	fixed_t cosadj;
 	fixed_t dy;
 	INT32 i;
 	INT32 j;
 	INT32 level;
 	INT32 startmapl;
-	INT32 aspectx;  //added : 02-02-98 : for aspect ratio calc. below...
 
 	setsizeneeded = false;
 
@@ -597,31 +595,22 @@ void R_ExecuteSetViewSize(void)
 	for (i = 0; i < viewwidth; i++)
 		screenheightarray[i] = (INT16)viewheight;
 
-	// setup sky scaling (uses pspriteyscale)
+	// setup sky scaling
 	R_SetSkyScale();
 
 	// planes
-	//aspectx = (((vid.height*centerx*BASEVIDWIDTH)/BASEVIDHEIGHT)/vid.width);
-	aspectx = centerx;
-
 	if (rendermode == render_soft)
 	{
 		// this is only used for planes rendering in software mode
-		j = viewheight*8;
+		j = viewheight*16;
 		for (i = 0; i < j; i++)
 		{
-			dy = ((i - viewheight*2)<<FRACBITS) + FRACUNIT/2;
+			dy = ((i - viewheight*8)<<FRACBITS) + FRACUNIT/2;
 			dy = abs(dy);
-			yslopetab[i] = FixedDiv(aspectx*FRACUNIT, dy);
+			yslopetab[i] = FixedDiv(centerx*FRACUNIT, dy);
 		}
 	}
 
-	for (i = 0; i < viewwidth; i++)
-	{
-		cosadj = abs(FINECOSINE(xtoviewangle[i]>>ANGLETOFINESHIFT));
-		distscale[i] = FixedDiv(FRACUNIT, cosadj);
-	}
-
 	memset(scalelight, 0xFF, sizeof(scalelight));
 
 	// Calculate the light levels to use for each level/scale combination.
@@ -734,9 +723,136 @@ static mobj_t *viewmobj;
 // WARNING: a should be unsigned but to add with 2048, it isn't!
 #define AIMINGTODY(a) ((FINETANGENT((2048+(((INT32)a)>>ANGLETOFINESHIFT)) & FINEMASK)*160)>>FRACBITS)
 
-void R_SkyboxFrame(player_t *player)
+// recalc necessary stuff for mouseaiming
+// slopes are already calculated for the full possible view (which is 4*viewheight).
+// 18/08/18: (No it's actually 16*viewheight, thanks Jimita for finding this out)
+static void R_SetupFreelook(void)
 {
 	INT32 dy = 0;
+	if (rendermode == render_soft)
+	{
+		// clip it in the case we are looking a hardware 90 degrees full aiming
+		// (lmps, network and use F12...)
+		G_SoftwareClipAimingPitch((INT32 *)&aimingangle);
+		dy = AIMINGTODY(aimingangle) * viewwidth/BASEVIDWIDTH;
+		yslope = &yslopetab[viewheight*8 - (viewheight/2 + dy)];
+	}
+	centery = (viewheight/2) + dy;
+	centeryfrac = centery<<FRACBITS;
+}
+
+#undef AIMINGTODY
+
+void R_SetupFrame(player_t *player, boolean skybox)
+{
+	camera_t *thiscam;
+	boolean chasecam = false;
+
+	if (splitscreen && player == &players[secondarydisplayplayer]
+		&& player != &players[consoleplayer])
+	{
+		thiscam = &camera2;
+		chasecam = (cv_chasecam2.value != 0);
+	}
+	else
+	{
+		thiscam = &camera;
+		chasecam = (cv_chasecam.value != 0);
+	}
+
+	if (player->climbing || (player->pflags & PF_NIGHTSMODE) || player->playerstate == PST_DEAD)
+		chasecam = true; // force chasecam on
+	else if (player->spectator) // no spectator chasecam
+		chasecam = false; // force chasecam off
+
+	if (chasecam && !thiscam->chase)
+	{
+		P_ResetCamera(player, thiscam);
+		thiscam->chase = true;
+	}
+	else if (!chasecam)
+		thiscam->chase = false;
+
+	viewsky = !skybox;
+	if (player->awayviewtics)
+	{
+		// cut-away view stuff
+		viewmobj = player->awayviewmobj; // should be a MT_ALTVIEWMAN
+		I_Assert(viewmobj != NULL);
+		viewz = viewmobj->z + 20*FRACUNIT;
+		aimingangle = player->awayviewaiming;
+		viewangle = viewmobj->angle;
+	}
+	else if (!player->spectator && chasecam)
+	// use outside cam view
+	{
+		viewmobj = NULL;
+		viewz = thiscam->z + (thiscam->height>>1);
+		aimingangle = thiscam->aiming;
+		viewangle = thiscam->angle;
+	}
+	else
+	// use the player's eyes view
+	{
+		viewz = player->viewz;
+
+		viewmobj = player->mo;
+		I_Assert(viewmobj != NULL);
+
+		aimingangle = player->aiming;
+		viewangle = viewmobj->angle;
+
+		if (!demoplayback && player->playerstate != PST_DEAD)
+		{
+			if (player == &players[consoleplayer])
+			{
+				viewangle = localangle; // WARNING: camera uses this
+				aimingangle = localaiming;
+			}
+			else if (player == &players[secondarydisplayplayer])
+			{
+				viewangle = localangle2;
+				aimingangle = localaiming2;
+			}
+		}
+	}
+	viewz += quake.z;
+
+	viewplayer = player;
+
+	if (chasecam && !player->awayviewtics && !player->spectator)
+	{
+		viewx = thiscam->x;
+		viewy = thiscam->y;
+		viewx += quake.x;
+		viewy += quake.y;
+
+		if (thiscam->subsector)
+			viewsector = thiscam->subsector->sector;
+		else
+			viewsector = R_PointInSubsector(viewx, viewy)->sector;
+	}
+	else
+	{
+		viewx = viewmobj->x;
+		viewy = viewmobj->y;
+		viewx += quake.x;
+		viewy += quake.y;
+
+		if (viewmobj->subsector)
+			viewsector = viewmobj->subsector->sector;
+		else
+			viewsector = R_PointInSubsector(viewx, viewy)->sector;
+	}
+
+	viewsin = FINESINE(viewangle>>ANGLETOFINESHIFT);
+	viewcos = FINECOSINE(viewangle>>ANGLETOFINESHIFT);
+
+	R_SetupFreelook();
+}
+
+void R_SkyboxFrame(player_t *player)
+{
 	camera_t *thiscam;
 
 	if (splitscreen && player == &players[secondarydisplayplayer]
@@ -950,146 +1066,7 @@ void R_SkyboxFrame(player_t *player)
 	viewsin = FINESINE(viewangle>>ANGLETOFINESHIFT);
 	viewcos = FINECOSINE(viewangle>>ANGLETOFINESHIFT);
 
-	// recalc necessary stuff for mouseaiming
-	// slopes are already calculated for the full possible view (which is 4*viewheight).
-	// 18/08/18: (No it's actually 8*viewheight, thanks MPC aka Jimita for finding this out)
-
-	if (rendermode == render_soft)
-	{
-		// clip it in the case we are looking a hardware 90 degrees full aiming
-		// (lmps, network and use F12...)
-		G_SoftwareClipAimingPitch((INT32 *)&aimingangle);
-
-		dy = AIMINGTODY(aimingangle) * viewwidth/BASEVIDWIDTH;
-
-		yslope = &yslopetab[(3*viewheight/2) - dy];
-	}
-	centery = (viewheight/2) + dy;
-	centeryfrac = centery<<FRACBITS;
-}
-
-void R_SetupFrame(player_t *player, boolean skybox)
-{
-	INT32 dy = 0;
-	camera_t *thiscam;
-	boolean chasecam = false;
-
-	if (splitscreen && player == &players[secondarydisplayplayer]
-		&& player != &players[consoleplayer])
-	{
-		thiscam = &camera2;
-		chasecam = (cv_chasecam2.value != 0);
-	}
-	else
-	{
-		thiscam = &camera;
-		chasecam = (cv_chasecam.value != 0);
-	}
-
-	if (player->climbing || (player->pflags & PF_NIGHTSMODE) || player->playerstate == PST_DEAD)
-		chasecam = true; // force chasecam on
-	else if (player->spectator) // no spectator chasecam
-		chasecam = false; // force chasecam off
-
-	if (chasecam && !thiscam->chase)
-	{
-		P_ResetCamera(player, thiscam);
-		thiscam->chase = true;
-	}
-	else if (!chasecam)
-		thiscam->chase = false;
-
-	viewsky = !skybox;
-	if (player->awayviewtics)
-	{
-		// cut-away view stuff
-		viewmobj = player->awayviewmobj; // should be a MT_ALTVIEWMAN
-		I_Assert(viewmobj != NULL);
-		viewz = viewmobj->z + 20*FRACUNIT;
-		aimingangle = player->awayviewaiming;
-		viewangle = viewmobj->angle;
-	}
-	else if (!player->spectator && chasecam)
-	// use outside cam view
-	{
-		viewmobj = NULL;
-		viewz = thiscam->z + (thiscam->height>>1);
-		aimingangle = thiscam->aiming;
-		viewangle = thiscam->angle;
-	}
-	else
-	// use the player's eyes view
-	{
-		viewz = player->viewz;
-
-		viewmobj = player->mo;
-		I_Assert(viewmobj != NULL);
-
-		aimingangle = player->aiming;
-		viewangle = viewmobj->angle;
-
-		if (!demoplayback && player->playerstate != PST_DEAD)
-		{
-			if (player == &players[consoleplayer])
-			{
-				viewangle = localangle; // WARNING: camera uses this
-				aimingangle = localaiming;
-			}
-			else if (player == &players[secondarydisplayplayer])
-			{
-				viewangle = localangle2;
-				aimingangle = localaiming2;
-			}
-		}
-	}
-	viewz += quake.z;
-
-	viewplayer = player;
-
-	if (chasecam && !player->awayviewtics && !player->spectator)
-	{
-		viewx = thiscam->x;
-		viewy = thiscam->y;
-		viewx += quake.x;
-		viewy += quake.y;
-
-		if (thiscam->subsector)
-			viewsector = thiscam->subsector->sector;
-		else
-			viewsector = R_PointInSubsector(viewx, viewy)->sector;
-	}
-	else
-	{
-		viewx = viewmobj->x;
-		viewy = viewmobj->y;
-		viewx += quake.x;
-		viewy += quake.y;
-
-		if (viewmobj->subsector)
-			viewsector = viewmobj->subsector->sector;
-		else
-			viewsector = R_PointInSubsector(viewx, viewy)->sector;
-	}
-
-	viewsin = FINESINE(viewangle>>ANGLETOFINESHIFT);
-	viewcos = FINECOSINE(viewangle>>ANGLETOFINESHIFT);
-
-	// recalc necessary stuff for mouseaiming
-	// slopes are already calculated for the full possible view (which is 4*viewheight).
-	// 18/08/18: (No it's actually 8*viewheight, thanks MPC aka Jimita for finding this out)
-
-	if (rendermode == render_soft)
-	{
-		// clip it in the case we are looking a hardware 90 degrees full aiming
-		// (lmps, network and use F12...)
-		G_SoftwareClipAimingPitch((INT32 *)&aimingangle);
-
-		dy = AIMINGTODY(aimingangle) * viewwidth/BASEVIDWIDTH;
-
-		yslope = &yslopetab[(3*viewheight/2) - dy];
-	}
-	centery = (viewheight/2) + dy;
-	centeryfrac = centery<<FRACBITS;
+	R_SetupFreelook();
 }
 
 #define ANGLED_PORTALS
diff --git a/src/r_plane.c b/src/r_plane.c
index b09ac4843b6d63d5e7d574a5dbecf080fd7f06b5..5cb53a5306b88d12db093a19d222689bd0bf56f1 100644
--- a/src/r_plane.c
+++ b/src/r_plane.c
@@ -16,6 +16,8 @@
 #include "doomdef.h"
 #include "console.h"
 #include "g_game.h"
+#include "p_setup.h" // levelflats
+#include "p_slopes.h"
 #include "r_data.h"
 #include "r_local.h"
 #include "r_state.h"
@@ -26,9 +28,12 @@
 #include "z_zone.h"
 #include "p_tick.h"
 
-#include "p_setup.h" // levelflats
-
-#include "p_slopes.h"
+#ifdef TIMING
+#include "p5prof.h"
+	INT64 mycount;
+	INT64 mytotal = 0;
+	UINT32 nombre = 100000;
+#endif
 
 //
 // opening
@@ -51,7 +56,7 @@ visplane_t *floorplane;
 visplane_t *ceilingplane;
 static visplane_t *currentplane;
 
-planemgr_t ffloor[MAXFFLOORS];
+visffloor_t ffloor[MAXFFLOORS];
 INT32 numffloors;
 
 //SoM: 3/23/2000: Boom visplane hashing routine.
@@ -89,10 +94,9 @@ static fixed_t planeheight;
 //                (this is to calculate yslopes only when really needed)
 //                (when mouselookin', yslope is moving into yslopetab)
 //                Check R_SetupFrame, R_SetViewSize for more...
-fixed_t yslopetab[MAXVIDHEIGHT*8];
+fixed_t yslopetab[MAXVIDHEIGHT*16];
 fixed_t *yslope;
 
-fixed_t distscale[MAXVIDWIDTH];
 fixed_t basexscale, baseyscale;
 
 fixed_t cachedheight[MAXVIDHEIGHT];
@@ -155,34 +159,19 @@ void R_PortalRestoreClipValues(INT32 start, INT32 end, INT16 *ceil, INT16 *floor
 	}
 }
 
-
-//profile stuff ---------------------------------------------------------
-//#define TIMING
-#ifdef TIMING
-#include "p5prof.h"
-         INT64 mycount;
-         INT64 mytotal = 0;
-         UINT32 nombre = 100000;
-#endif
-//profile stuff ---------------------------------------------------------
-
-
 //
 // R_MapPlane
 //
 // Uses global vars:
-//  planeheight
-//  ds_source
 //  basexscale
 //  baseyscale
+//  centerx
 //  viewx
 //  viewy
-//  xoffs
-//  yoffs
-//  planeangle
-//
-// BASIC PRIMITIVE
-//
+//  viewsin
+//  viewcos
+//  viewheight
+
 #ifndef NOWATER
 static INT32 bgofs;
 static INT32 wtofs=0;
@@ -190,10 +179,6 @@ static INT32 waterofs;
 static boolean itswater;
 #endif
 
-#ifdef __mips__
-//#define NOWATER
-#endif
-
 #ifndef NOWATER
 static void R_DrawTranslucentWaterSpan_8(void)
 {
@@ -275,8 +260,8 @@ static void R_DrawTranslucentWaterSpan_8(void)
 
 void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
 {
-	angle_t angle;
-	fixed_t distance, length;
+	angle_t angle, planecos, planesin;
+	fixed_t distance, span;
 	size_t pindex;
 
 #ifdef RANGECHECK
@@ -287,12 +272,22 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
 	// from r_splats's R_RenderFloorSplat
 	if (x1 >= vid.width) x1 = vid.width - 1;
 
+	angle = (currentplane->viewangle + currentplane->plangle)>>ANGLETOFINESHIFT;
+	planecos = FINECOSINE(angle);
+	planesin = FINESINE(angle);
+
 	if (planeheight != cachedheight[y])
 	{
 		cachedheight[y] = planeheight;
 		distance = cacheddistance[y] = FixedMul(planeheight, yslope[y]);
 		ds_xstep = cachedxstep[y] = FixedMul(distance, basexscale);
 		ds_ystep = cachedystep[y] = FixedMul(distance, baseyscale);
+
+		if ((span = abs(centery-y)))
+		{
+			ds_xstep = cachedxstep[y] = FixedMul(planesin, planeheight) / span;
+			ds_ystep = cachedystep[y] = FixedMul(planecos, planeheight) / span;
+		}
 	}
 	else
 	{
@@ -301,13 +296,8 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
 		ds_ystep = cachedystep[y];
 	}
 
-	length = FixedMul (distance,distscale[x1]);
-	angle = (currentplane->viewangle + currentplane->plangle + xtoviewangle[x1])>>ANGLETOFINESHIFT;
-	/// \note Wouldn't it be faster just to add viewx and viewy
-	// to the plane's x/yoffs anyway??
-
-	ds_xfrac = FixedMul(FINECOSINE(angle), length) + xoffs;
-	ds_yfrac = yoffs - FixedMul(FINESINE(angle), length);
+	ds_xfrac = xoffs + FixedMul(planecos, distance) + (x1 - centerx) * ds_xstep;
+	ds_yfrac = yoffs - FixedMul(planesin, distance) + (x1 - centerx) * ds_ystep;
 
 #ifndef NOWATER
 	if (itswater)
@@ -315,8 +305,9 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
 		const INT32 yay = (wtofs + (distance>>9) ) & 8191;
 		// ripples da water texture
 		bgofs = FixedDiv(FINESINE(yay), (1<<12) + (distance>>11))>>FRACBITS;
+		angle = (currentplane->viewangle + currentplane->plangle + xtoviewangle[x1])>>ANGLETOFINESHIFT;
 
-		angle = (angle + 2048) & 8191;  //90�
+		angle = (angle + 2048) & 8191;  // 90 degrees
 		ds_xfrac += FixedMul(FINECOSINE(angle), (bgofs<<FRACBITS));
 		ds_yfrac += FixedMul(FINESINE(angle), (bgofs<<FRACBITS));
 
@@ -328,7 +319,6 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
 #endif
 
 	pindex = distance >> LIGHTZSHIFT;
-
 	if (pindex >= MAXLIGHTZ)
 		pindex = MAXLIGHTZ - 1;
 
@@ -365,8 +355,6 @@ void R_MapPlane(INT32 y, INT32 x1, INT32 x2)
 // R_ClearPlanes
 // At begining of frame.
 //
-// NOTE: Uses con_clipviewtop, so that when console is on,
-//       we don't draw the part of the view hidden under the console.
 void R_ClearPlanes(void)
 {
 	INT32 i, p;
@@ -376,12 +364,12 @@ void R_ClearPlanes(void)
 	for (i = 0; i < viewwidth; i++)
 	{
 		floorclip[i] = (INT16)viewheight;
-		ceilingclip[i] = (INT16)con_clipviewtop;
+		ceilingclip[i] = -1;
 		frontscale[i] = INT32_MAX;
 		for (p = 0; p < MAXFFLOORS; p++)
 		{
 			ffloor[p].f_clip[i] = (INT16)viewheight;
-			ffloor[p].c_clip[i] = (INT16)con_clipviewtop;
+			ffloor[p].c_clip[i] = -1;
 		}
 	}
 
diff --git a/src/r_plane.h b/src/r_plane.h
index 2ab1e83f5a386d612cd62c1f5b0148195803d6c4..6e6a6d49d0522a6aa6b0d9facd35754f5744af14 100644
--- a/src/r_plane.h
+++ b/src/r_plane.h
@@ -21,7 +21,6 @@
 //
 // Now what is a visplane, anyway?
 // Simple: kinda floor/ceiling polygon optimised for SRB2 rendering.
-// 7764 bytes! (for win32, anyway)
 //
 typedef struct visplane_s
 {
@@ -39,25 +38,12 @@ typedef struct visplane_s
 	extracolormap_t *extra_colormap;
 
 	// leave pads for [minx-1]/[maxx+1]
-
-	// words sucks .. should get rid of that.. but eats memory
-	// THIS IS UNSIGNED! VERY IMPORTANT!!
-	UINT16 pad1;
-	UINT16 top[MAXVIDWIDTH];
-	UINT16 pad2;
-	UINT16 pad3;
-	UINT16 bottom[MAXVIDWIDTH];
-	UINT16 pad4;
-
+	UINT16 padtopstart, top[MAXVIDWIDTH], padtopend;
+	UINT16 padbottomstart, bottom[MAXVIDWIDTH], padbottomend;
 	INT32 high, low; // R_PlaneBounds should set these.
 
 	fixed_t xoffs, yoffs; // Scrolling flats.
 
-	// SoM: frontscale should be stored in the first seg of the subsector
-	// where the planes themselves are stored. I'm doing this now because
-	// the old way caused trouble with the drawseg array was re-sized.
-	INT32 scaleseg;
-
 	struct ffloor_s *ffloor;
 #ifdef POLYOBJECTS_PLANES
 	polyobj_t *polyobj;
@@ -75,17 +61,15 @@ extern INT16 *lastopening, *openings;
 extern size_t maxopenings;
 
 extern INT16 floorclip[MAXVIDWIDTH], ceilingclip[MAXVIDWIDTH];
-extern fixed_t frontscale[MAXVIDWIDTH], yslopetab[MAXVIDHEIGHT*8];
+extern fixed_t frontscale[MAXVIDWIDTH], yslopetab[MAXVIDHEIGHT*16];
 extern fixed_t cachedheight[MAXVIDHEIGHT];
 extern fixed_t cacheddistance[MAXVIDHEIGHT];
 extern fixed_t cachedxstep[MAXVIDHEIGHT];
 extern fixed_t cachedystep[MAXVIDHEIGHT];
 extern fixed_t basexscale, baseyscale;
 
-extern lighttable_t **planezlight;
-
 extern fixed_t *yslope;
-extern fixed_t distscale[MAXVIDWIDTH];
+extern lighttable_t **planezlight;
 
 void R_InitPlanes(void);
 void R_PortalStoreClipValues(INT32 start, INT32 end, INT16 *ceil, INT16 *floor, fixed_t *scale);
@@ -134,8 +118,8 @@ typedef struct planemgr_s
 #ifdef POLYOBJECTS_PLANES
 	polyobj_t *polyobj;
 #endif
-} planemgr_t;
+} visffloor_t;
 
-extern planemgr_t ffloor[MAXFFLOORS];
+extern visffloor_t ffloor[MAXFFLOORS];
 extern INT32 numffloors;
 #endif
diff --git a/src/r_segs.c b/src/r_segs.c
index 2122cba172afb955f80a1ffdbf892188c369da6e..1637ce9053dd9c0758782ff9e1953f6fc4d7f7e8 100644
--- a/src/r_segs.c
+++ b/src/r_segs.c
@@ -1344,24 +1344,12 @@ static void R_RenderSegLoop (void)
 
 		if (markfloor)
 		{
-#if 0 // Old Doom Legacy code
-			bottom = floorclip[rw_x]-1;
-			if (top <= ceilingclip[rw_x])
-				top = ceilingclip[rw_x]+1;
-			if (top <= bottom && floorplane)
-			{
-				floorplane->top[rw_x] = (INT16)top;
-				floorplane->bottom[rw_x] = (INT16)bottom;
-			}
-#else // Spiffy new PRBoom code
-			top  = yh < ceilingclip[rw_x] ? ceilingclip[rw_x] : yh;
-
+			top = yh < ceilingclip[rw_x] ? ceilingclip[rw_x] : yh;
 			if (++top <= bottom && floorplane)
 			{
 				floorplane->top[rw_x] = (INT16)top;
 				floorplane->bottom[rw_x] = (INT16)bottom;
 			}
-#endif
 		}
 
 		if (numffloors)
@@ -1645,26 +1633,11 @@ static void R_RenderSegLoop (void)
 		}
 
 		for (i = 0; i < numffloors; i++)
-		{
-#ifdef POLYOBJECTS_PLANES
-			if (ffloor[i].polyobj && (!curline->polyseg || ffloor[i].polyobj != curline->polyseg))
-				continue;
-#endif
-
 			ffloor[i].f_frac += ffloor[i].f_step;
-		}
 
 		for (i = 0; i < numbackffloors; i++)
 		{
-			INT32 y_w;
-
-#ifdef POLYOBJECTS_PLANES
-			if (ffloor[i].polyobj && (!curline->polyseg || ffloor[i].polyobj != curline->polyseg))
-				continue;
-#endif
-			y_w = ffloor[i].b_frac >> HEIGHTBITS;
-
-			ffloor[i].f_clip[rw_x] = ffloor[i].c_clip[rw_x] = (INT16)(y_w & 0xFFFF);
+			ffloor[i].f_clip[rw_x] = ffloor[i].c_clip[rw_x] = (INT16)((ffloor[i].b_frac >> HEIGHTBITS) & 0xFFFF);
 			ffloor[i].b_frac += ffloor[i].b_step;
 		}
 
@@ -2775,11 +2748,6 @@ void R_StoreWallRange(INT32 start, INT32 stop)
 	{
 		for (i = 0; i < numffloors; i++)
 		{
-#ifdef POLYOBJECTS_PLANES
-			if (ffloor[i].polyobj && (!curline->polyseg || ffloor[i].polyobj != curline->polyseg))
-				continue;
-#endif
-
 			ffloor[i].f_pos >>= 4;
 #ifdef ESLOPE
 			ffloor[i].f_pos_slope >>= 4;
@@ -3060,7 +3028,11 @@ void R_StoreWallRange(INT32 start, INT32 stop)
 		if (ceilingplane) //SoM: 3/29/2000: Check for null ceiling planes
 			ceilingplane = R_CheckPlane (ceilingplane, rw_x, rw_stopx-1);
 		else
-			markceiling = 0;
+			markceiling = false;
+
+		// Don't render the ceiling again when rendering polyobjects
+		if (curline->polyseg)
+			markceiling = false;
 	}
 
 	// get a new or use the same visplane
@@ -3069,7 +3041,11 @@ void R_StoreWallRange(INT32 start, INT32 stop)
 		if (floorplane) //SoM: 3/29/2000: Check for null planes
 			floorplane = R_CheckPlane (floorplane, rw_x, rw_stopx-1);
 		else
-			markfloor = 0;
+			markfloor = false;
+
+		// Don't render the floor again when rendering polyobjects
+		if (curline->polyseg)
+			markfloor = false;
 	}
 
 	ds_p->numffloorplanes = 0;
diff --git a/src/r_splats.c b/src/r_splats.c
index 8d0a84fa4033c3887c6b88e9a9973b6d52082db4..9ab671274403f1f7dfea967271f286d8aafef1cd 100644
--- a/src/r_splats.c
+++ b/src/r_splats.c
@@ -365,9 +365,8 @@ static void R_RenderFloorSplat(floorsplat_t *pSplat, vertex_t *verts, UINT8 *pTe
 #else
 	lighttable_t **planezlight;
 	fixed_t planeheight;
-	angle_t angle;
-	fixed_t distance;
-	fixed_t length;
+	angle_t angle, planecos, planesin;
+	fixed_t distance, span;
 	size_t indexr;
 	INT32 light;
 #endif
@@ -473,12 +472,22 @@ static void R_RenderFloorSplat(floorsplat_t *pSplat, vertex_t *verts, UINT8 *pTe
 		if (x2 >= vid.width)
 			x2 = vid.width - 1;
 
+		angle = (currentplane->viewangle + currentplane->plangle)>>ANGLETOFINESHIFT;
+		planecos = FINECOSINE(angle);
+		planesin = FINESINE(angle);
+
 		if (planeheight != cachedheight[y])
 		{
 			cachedheight[y] = planeheight;
 			distance = cacheddistance[y] = FixedMul(planeheight, yslope[y]);
 			ds_xstep = cachedxstep[y] = FixedMul(distance,basexscale);
 			ds_ystep = cachedystep[y] = FixedMul(distance,baseyscale);
+
+			if ((span = abs(centery-y)))
+			{
+				ds_xstep = cachedxstep[y] = FixedMul(planesin, planeheight) / span;
+				ds_ystep = cachedystep[y] = FixedMul(planecos, planeheight) / span;
+			}
 		}
 		else
 		{
@@ -486,10 +495,9 @@ static void R_RenderFloorSplat(floorsplat_t *pSplat, vertex_t *verts, UINT8 *pTe
 			ds_xstep = cachedxstep[y];
 			ds_ystep = cachedystep[y];
 		}
-		length = FixedMul(distance, distscale[x1]);
-		angle = (viewangle + xtoviewangle[x1])>>ANGLETOFINESHIFT;
-		ds_xfrac = viewx + FixedMul(FINECOSINE(angle), length);
-		ds_yfrac = -viewy - FixedMul(FINESINE(angle), length);
+
+		ds_xfrac = xoffs + FixedMul(planecos, distance) + (x1 - centerx) * ds_xstep;
+		ds_yfrac = yoffs - FixedMul(planesin, distance) + (x1 - centerx) * ds_ystep;
 		ds_xfrac -= offsetx;
 		ds_yfrac += offsety;
 
diff --git a/src/r_things.c b/src/r_things.c
index b7c925e39676536945ebca6b5963f23ba0c4ffc6..67a45a76e4681be7d94e04e63737ae3d1e97b51a 100644
--- a/src/r_things.c
+++ b/src/r_things.c
@@ -1733,7 +1733,7 @@ static void R_CreateDrawNodes(void)
 			plane = ds->curline->polyseg->visplane;
 			R_PlaneBounds(plane);
 
-			if (plane->low < con_clipviewtop || plane->high > vid.height || plane->high > plane->low)
+			if (plane->low < 0 || plane->high > vid.height || plane->high > plane->low)
 				;
 			else {
 				// Put it in!
@@ -1762,7 +1762,7 @@ static void R_CreateDrawNodes(void)
 					plane = ds->ffloorplanes[p];
 					R_PlaneBounds(plane);
 
-					if (plane->low < con_clipviewtop || plane->high > vid.height || plane->high > plane->low || plane->polyobj)
+					if (plane->low < 0 || plane->high > vid.height || plane->high > plane->low || plane->polyobj)
 					{
 						ds->ffloorplanes[p] = NULL;
 						continue;
@@ -1799,7 +1799,7 @@ static void R_CreateDrawNodes(void)
 		plane = PolyObjects[i].visplane;
 		R_PlaneBounds(plane);
 
-		if (plane->low < con_clipviewtop || plane->high > vid.height || plane->high > plane->low)
+		if (plane->low < 0 || plane->high > vid.height || plane->high > plane->low)
 		{
 			PolyObjects[i].visplane = NULL;
 			continue;
diff --git a/src/screen.c b/src/screen.c
index d5beaf360ed35b28bf9128464ac45d2216ead611..af6aed03c0c78abef969d2a87e3cd11a27c42609 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -309,14 +309,6 @@ void SCR_Recalc(void)
 	if (automapactive)
 		AM_Stop();
 
-	// r_plane stuff: visplanes, openings, floorclip, ceilingclip, spanstart,
-	//                spanstop, yslope, distscale, cachedheight, cacheddistance,
-	//                cachedxstep, cachedystep
-	//             -> allocated at the maximum vidsize, static.
-
-	// r_main: xtoviewangle, allocated at the maximum size.
-	// r_things: negonearray, screenheightarray allocated max. size.
-
 	// set the screen[x] ptrs on the new vidbuffers
 	V_Init();