diff --git a/Utils/MkLevel/Main.cpp b/Utils/MkLevel/Main.cpp
index a096e61c8..3003f176e 100644
--- a/Utils/MkLevel/Main.cpp
+++ b/Utils/MkLevel/Main.cpp
@@ -16,6 +16,7 @@ int			TPBase=-1,TPW=-1,TPH=-1;
 GString		IncDir;
 int			PakW=0,PakH=0;
 bool		LocalGeom=false;
+float		SnapThresh=0;
 
 //***************************************************************************
 char * CycleCommands(char *String,int Num)
@@ -75,6 +76,11 @@ int		Count;
 					TextPtr+=strlen(TextPtr)+1;
 					PakH=atol(TextPtr);
 					break;
+				case 'z':
+					TpStr= CheckFileString(String);
+					SnapThresh=atof(TpStr);
+					break;
+
 				default:
 					GObject::Error(ERR_FATAL,"Unknown switch %s",String);
 					break;
@@ -105,6 +111,7 @@ void Usage(char *ErrStr)
 	printf("   -q:             Enable Quadding\n");
 	printf("   -l:             Enable Local Geom\n");
 	printf("   -p:             Level Chunk Pak Info (X,Y) (Default=None(0,0)\n");
+	printf("   -z:             Snap Threshold\n");
 	GObject::Error(ERR_FATAL,ErrStr);
 }
 
@@ -120,7 +127,7 @@ std::vector<GString> const &Files = MyFiles.GetFileInfoVector();
 		if (Files.size()>1)		Usage("Too many Levels specified\n");
 
 		Level.SetAppDir(argv[0]);
-		Level.Init(Files[0],OutStr,IncDir,TPBase,TPW,TPH,PakW,PakH,LocalGeom);
+		Level.Init(Files[0],OutStr,IncDir,TPBase,TPW,TPH,PakW,PakH,LocalGeom,SnapThresh);
 		Level.Load();
 		Level.Process();
 		Level.Write();
diff --git a/Utils/MkLevel/MkLevel.cpp b/Utils/MkLevel/MkLevel.cpp
index dfb50e5a8..b343a6d4f 100644
--- a/Utils/MkLevel/MkLevel.cpp
+++ b/Utils/MkLevel/MkLevel.cpp
@@ -51,36 +51,44 @@ sLayerNameTable	LayerNameTable[]=
 #define		LayerNameTableSize	sizeof(LayerNameTable)/sizeof(sLayerNameTable)
 
 //***************************************************************************
-int				TSize,QSize,VSize;
-int				Tile2dSize,Tile3dSize;
+int			TSize,QSize,VSize;
+int			Tile2dSize,Tile3dSize;
 const char	*ModelExcludeGroupName="ModelExcludeList";
 const char	*ModelOtOfsGroupName="ModelOtOfs";
-
+int			LocalOptCount=0;
 //***************************************************************************
 const GString	ConfigFilename="MkLevel.ini";
 sExpLayerTile	BlankTile={0,0};
 
+
+const float	InElemXMin=-0.5f;
+const float	InElemXMax=+0.5f;
+const float	InElemYMin=-0.0f;
+const float	InElemYMax=+1.0f;
+const float	InElemZMin=-4.0f;
+const float	InElemZMax=+4.0f;
+
+const float	OutElemXMin=-0.5f;
+const float	OutElemXMax=+0.5f;
+const float	OutElemYMin=-0.5f;
+const float	OutElemYMax=+0.5f;
+const float	OutElemZMin=-4.0f;
+const float	OutElemZMax=+4.0f;
+
 Vector3	DefVtxTable[8]=
 {
-	Vector3(+0.5f,+1.0f,-4.0f),
-	Vector3(-0.5f,+1.0f,-4.0f),
-	Vector3(+0.5f, 0.0f,-4.0f),
-	Vector3(-0.5f, 0.0f,-4.0f),
+	Vector3(OutElemXMin,OutElemYMin,OutElemZMin),	// FLU
+	Vector3(OutElemXMax,OutElemYMin,OutElemZMin),	// FRU
+	Vector3(OutElemXMin,OutElemYMax,OutElemZMin),	// FLD
+	Vector3(OutElemXMax,OutElemYMax,OutElemZMin),	// FRD
 
-	Vector3(+0.5f,+1.0f,+4.0f),
-	Vector3(-0.5f,+1.0f,+4.0f),
-	Vector3(+0.5f, 0.0f,+4.0f),
-	Vector3(-0.5f, 0.0f,+4.0f),
+	Vector3(OutElemXMin,OutElemYMin,OutElemZMax),	// BLU
+	Vector3(OutElemXMax,OutElemYMin,OutElemZMax),	// BRU
+	Vector3(OutElemXMin,OutElemYMax,OutElemZMax),	// BLD
+	Vector3(OutElemXMax,OutElemYMax,OutElemZMax),	// BRD
 };
 #define	DefVtxTableSize	sizeof(DefVtxTable)/sizeof(Vector3)
 
-float	SnapThresh=0.05f;
-float	SnapXMin=-0.5f;
-float	SnapXMax=+0.5f;
-float	SnapYMin=-0.0f;
-float	SnapYMax=+1.0f;
-float	SnapZMin=-4.0f;
-float	SnapZMax=+4.0f;
 
 //***************************************************************************
 CMkLevel::CMkLevel()
@@ -113,7 +121,7 @@ GFName	Path=AppPath;
 }
 
 //***************************************************************************
-void	CMkLevel::Init(const char *Filename,const char *OutFilename,const char *IncDir,int TPBase,int TPW,int TPH,int _PakW,int _PakH,bool _LocalGeom)
+void	CMkLevel::Init(const char *Filename,const char *OutFilename,const char *IncDir,int TPBase,int TPW,int TPH,int _PakW,int _PakH,bool _LocalGeom,float _SnapThresh)
 {
 // Setup filenames and paths
 GFName		Path;
@@ -187,8 +195,8 @@ char		Buffer[256];
 		PakW=_PakW;
 		PakH=_PakH;
 		LocalGeom=_LocalGeom;
+		SnapThresh=_SnapThresh;
 		AddDefVtx(OutVtxList);
-
 }
 
 //***************************************************************************
@@ -403,7 +411,12 @@ u8		*ByteHdr=(u8*)FileHdr;
 void	CMkLevel::SnapTiles()
 {
 int		i,ListSize=InTileList.size();
-int		Count=0;
+float	SnapXMin=InElemXMin+SnapThresh;
+float	SnapXMax=InElemXMax-SnapThresh;
+float	SnapYMin=InElemYMin+SnapThresh;
+float	SnapYMax=InElemYMax-SnapThresh;
+float	SnapZMin=InElemZMin+SnapThresh;
+float	SnapZMax=InElemZMax-SnapThresh;
 
 		for (i=0;i<ListSize;i++)
 		{
@@ -415,20 +428,17 @@ int		Count=0;
 				{
 					Vector3	&V=ThisTri.vtx[p];
 
-					if (V.x<SnapXMin+SnapThresh) {V.x=SnapXMin;Count++;}
-					if (V.x>SnapXMax-SnapThresh) {V.x=SnapXMax;Count++;}
-					if (V.y<SnapYMin+SnapThresh) {V.y=SnapYMin;Count++;}
-					if (V.y>SnapYMax-SnapThresh) {V.y=SnapYMax;Count++;}
-					if (V.z<SnapZMin+SnapThresh) {V.z=SnapZMin;Count++;}
-					if (V.z>SnapZMax-SnapThresh) {V.z=SnapZMax;Count++;}
+					if (V.x<SnapXMin) V.x=InElemXMin;
+					if (V.x>SnapXMax) V.x=InElemXMax;
+					if (V.y<SnapYMin) V.y=InElemYMin;
+					if (V.y>SnapYMax) V.y=InElemYMax;
+					if (V.z<SnapZMin) V.z=InElemZMin;
+					if (V.z>SnapZMax) V.z=InElemZMax;
 				}
 			}
 		}
-		if (Count)
-		{
-			printf("Snapped %i Vtx Coords - Bad Artists\n",Count);
-		}
 }
+
 //***************************************************************************
 //*** Process ***************************************************************
 //***************************************************************************
@@ -540,7 +550,7 @@ int		i,ListSize=UsedTile3dList.size();
 }
 
 //***************************************************************************
-int		MaxElemTri=0,MaxElemQuad=0;
+int		MaxElemTri=0,MaxElemQuad=0,MaxElemVtx=0;
 void	CMkLevel::ProcessElemBank3d()
 {
 //int		i,ListSize=UsedTile3dList.size();	<--- UsedTile3dList is tiles only!!
@@ -550,7 +560,12 @@ int		i,ListSize=OutElem3d.size();
 		{
 			ProcessElem3d(OutElem3d[i]);
 		}
-		printf("Max Elem Tri =%i\tMax Elem Quad =%i\n",MaxElemTri,MaxElemQuad);
+		printf("Max Elem Tri =%i\tMax Elem Quad =%i\tMax Elem Vtx =%i\n",MaxElemTri,MaxElemQuad,MaxElemVtx);
+		if (LocalGeom)
+		{
+			printf("LocalGeom Optimised %i/%i\n",LocalOptCount,ListSize);
+
+		}
 }
 
 //***************************************************************************
@@ -570,19 +585,29 @@ CFaceStore		&ThisList=ThisElem.FaceStore;
 			else
 			{ // Local Geom
 				vector<sVtx>	LocalVtxList;
-//				AddDefVtx(LocalVtxList);
+				AddDefVtx(LocalVtxList);
 				ThisList.Process(OutTriList,OutQuadList,LocalVtxList);
 				ThisElem.Elem3d.VtxIdxStart=OutLocalVtxIdxList.size();
-//				printf("%i\n",LocalVtxList.size());
+				
+				int		ListSize=LocalVtxList.size();
+				int		LocalVtxCount=0;
 
-				int VtxListSize=LocalVtxList.size();
-				for (int v=0; v<VtxListSize; v++)
+				for (int v=8; v<ListSize; v++)
 				{
 					u16	Idx=CFaceStore::AddVtx(OutVtxList,LocalVtxList[v]);
+
 					OutLocalVtxIdxList.push_back(Idx);
+					LocalVtxCount++;
 				}
-				ThisElem.Elem3d.VtxTriCount=VtxListSize/3;
-				if (VtxListSize%3) ThisElem.Elem3d.VtxTriCount++;
+				if (LocalVtxCount<=0) 
+				{
+					LocalOptCount++;
+					LocalVtxCount=0;
+				}
+				ThisElem.Elem3d.VtxTriCount=LocalVtxCount/3;
+				if (LocalVtxCount%3) ThisElem.Elem3d.VtxTriCount++;
+//				printf("%i=%i\n",LocalVtxCount,ThisElem.Elem3d.VtxTriCount);
+				
 
 				CalcOtOfs(OutTriList,LocalVtxList,ThisElem.Elem3d.TriStart,ThisList.GetTriFaceCount());
 				CalcOtOfs(OutQuadList,LocalVtxList,ThisElem.Elem3d.QuadStart,ThisList.GetQuadFaceCount());
@@ -595,6 +620,7 @@ CFaceStore		&ThisList=ThisElem.FaceStore;
 		{ // Gen max polys per tile (NOT MODEL)
 			if (MaxElemTri<ThisElem.Elem3d.TriCount) MaxElemTri=ThisElem.Elem3d.TriCount;
 			if (MaxElemQuad<ThisElem.Elem3d.QuadCount) MaxElemQuad=ThisElem.Elem3d.QuadCount;
+			if (MaxElemVtx<ThisElem.Elem3d.VtxTriCount*3) MaxElemVtx=ThisElem.Elem3d.VtxTriCount*3;
 		}
 }
 
@@ -1064,8 +1090,11 @@ sVtx	Max={-100,-100,-100};
 		}
 		printf("%i Vtx\t(%i Bytes)\n",ListSize,ListSize*sizeof(sVtx));
 
-		printf("Min %i %i %i\n",Min.vx,Min.vy,Min.vz);
-		printf("Max %i %i %i\n",Max.vx,Max.vy,Max.vz);
+		printf("MinX: %i\tMaxX: %i\n",Min.vx,Max.vx);
+		printf("MinY: %i\tMaxY: %i\n",Min.vy,Max.vy);
+		printf("MinZ: %i\tMaxZ: %i\n",Min.vz,Max.vz);
+//		printf("Min %i %i %i\n",Min.vx,Min.vy,Min.vz);
+//		printf("Max %i %i %i\n",Max.vx,Max.vy,Max.vz);
 
 		return(Pos);
 }
diff --git a/Utils/MkLevel/MkLevel.h b/Utils/MkLevel/MkLevel.h
index 80f607b7b..bde8e18fe 100644
--- a/Utils/MkLevel/MkLevel.h
+++ b/Utils/MkLevel/MkLevel.h
@@ -88,7 +88,7 @@ public:
 		~CMkLevel();
 
 		void			SetAppDir(const char *Path);
-		void			Init(const char *InFilename,const char *OutFilename,const char *IncDir,int TPBase,int TPW,int TPH,int PakW,int PakH,bool LocalGeom);
+		void			Init(const char *InFilename,const char *OutFilename,const char *IncDir,int TPBase,int TPW,int TPH,int PakW,int PakH,bool LocalGeom,float SnapThesh);
 
 		void			LoadModels();
 		int				AddModel(const char *Name,int TriStart,int TriCount);
@@ -201,6 +201,7 @@ protected:
 
 		int						PakW,PakH;
 		bool					LocalGeom;
+		float					SnapThresh;
 
 		vector<sTri>			OutTriList;
 		vector<sQuad>			OutQuadList;
diff --git a/source/level/layertile.cpp b/source/level/layertile.cpp
index 200e9570f..1cbfdbc5e 100644
--- a/source/level/layertile.cpp
+++ b/source/level/layertile.cpp
@@ -82,6 +82,17 @@ int			YPos=MapPos.vy>>MapXYShift;
 			ShiftX=XPos & 15;
 			ShiftY=YPos%TILE2D_HEIGHT;
 
+			if (MapXY.vx<0)
+			{
+				MapXY.vx=0;
+				ShiftX=0;
+			}
+			if (MapXY.vy<0) 
+			{
+				MapXY.vy=0;
+				ShiftY=0;
+			}
+
 			if (MapXY.vx+SCREEN_TILE2D_WIDTH<=MapWidth)
 				RenderW=SCREEN_TILE2D_WIDTH;
 			else
diff --git a/source/level/layertile3d.cpp b/source/level/layertile3d.cpp
index a96d71da8..ddfbddc9a 100644
--- a/source/level/layertile3d.cpp
+++ b/source/level/layertile3d.cpp
@@ -22,7 +22,7 @@ static		FontBank		*Font;
 static const int	BLOCK_SIZE				=16;
 static const int	SCREEN_TILE_ADJ_U		=2;
 static const int	SCREEN_TILE_ADJ_D		=1;
-static const int	SCREEN_TILE_ADJ_L		=2;
+static const int	SCREEN_TILE_ADJ_L		=3;
 static const int	SCREEN_TILE_ADJ_R		=3;
 
 static const int	SCREEN_TILE3D_WIDTH		=(INGAME_SCREENW/BLOCK_SIZE)+SCREEN_TILE_ADJ_L+SCREEN_TILE_ADJ_R;
@@ -31,13 +31,59 @@ static const int	SCREEN_TILE3D_HEIGHT	=(INGAME_SCREENH/BLOCK_SIZE)+SCREEN_TILE_A
 static const int	RENDER_X_OFS			=INGAME_SCREENOFS_X-(SCREEN_TILE_ADJ_L*BLOCK_SIZE)+INGAME_RENDER_OFS_X;
 static const int	RENDER_Y_OFS			=INGAME_SCREENOFS_Y-(SCREEN_TILE_ADJ_U*BLOCK_SIZE)+INGAME_RENDER_OFS_Y;
 
+static const int	DeltaTableSizeX=SCREEN_TILE3D_WIDTH+1;
+static const int	DeltaTableSizeY=SCREEN_TILE3D_HEIGHT+1;
+
+
 /*****************************************************************************/
+// 0 LUF
+// 1 RUF
+// 2 LDF
+// 3 RDF
+
+// 4 LUB
+// 5 RUB
+// 6 LDB
+// 7 RDB
+
 sFlipTable	FlipTable[4]=
 {
-	{{+4096,0,+4096,0},0<<31},	//00 <0
-	{{-4096,0,+4096,0},1<<31},	//01 >0
-	{{+4096,0,-4096,0},1<<31},	//10 >0
-	{{-4096,0,-4096,0},0<<31}	//11 <0
+/*00 <0*/	{{+4096,0,+4096,0},	{	((DVECTOR*)SCRATCH_RAM)+0,
+									((DVECTOR*)SCRATCH_RAM)+1,
+									((DVECTOR*)SCRATCH_RAM)+2,
+									((DVECTOR*)SCRATCH_RAM)+3,
+									((DVECTOR*)SCRATCH_RAM)+4,
+									((DVECTOR*)SCRATCH_RAM)+5,
+									((DVECTOR*)SCRATCH_RAM)+6,
+									((DVECTOR*)SCRATCH_RAM)+7,
+								}, 0<<31},	
+/*01 >0*/	{{-4096,0,+4096,0},	{	((DVECTOR*)SCRATCH_RAM)+1,
+									((DVECTOR*)SCRATCH_RAM)+0,
+									((DVECTOR*)SCRATCH_RAM)+3,
+									((DVECTOR*)SCRATCH_RAM)+2,
+									((DVECTOR*)SCRATCH_RAM)+5,
+									((DVECTOR*)SCRATCH_RAM)+4,
+									((DVECTOR*)SCRATCH_RAM)+7,
+									((DVECTOR*)SCRATCH_RAM)+6,
+								},1<<31},
+/*10 >0*/	{{+4096,0,-4096,0},	{	((DVECTOR*)SCRATCH_RAM)+2,
+									((DVECTOR*)SCRATCH_RAM)+3,
+									((DVECTOR*)SCRATCH_RAM)+0,
+									((DVECTOR*)SCRATCH_RAM)+1,
+									((DVECTOR*)SCRATCH_RAM)+6,
+									((DVECTOR*)SCRATCH_RAM)+7,
+									((DVECTOR*)SCRATCH_RAM)+4,
+									((DVECTOR*)SCRATCH_RAM)+5,
+								},1<<31},
+/*11 <0*/	{{-4096,0,-4096,0},	{	((DVECTOR*)SCRATCH_RAM)+3,
+									((DVECTOR*)SCRATCH_RAM)+2,
+									((DVECTOR*)SCRATCH_RAM)+1,
+									((DVECTOR*)SCRATCH_RAM)+0,
+									((DVECTOR*)SCRATCH_RAM)+7,
+									((DVECTOR*)SCRATCH_RAM)+6,
+									((DVECTOR*)SCRATCH_RAM)+5,
+									((DVECTOR*)SCRATCH_RAM)+4,
+								},0<<31}
 };
 
 /*****************************************************************************/
@@ -71,6 +117,7 @@ CLayerTile3d::~CLayerTile3d()
 void	CLayerTile3d::init(DVECTOR &MapPos,int Shift)
 {
 		CLayerTile::init(MapPos,Shift);
+		CalcDelta();
 }
 
 /*****************************************************************************/
@@ -80,10 +127,76 @@ void	CLayerTile3d::shutdown()
 		Font->dump();
 		delete Font;
 #endif
+		for (int i=0; i<16; i++)
+		{
+			MemFree(FTableX[i]);
+			MemFree(FTableY[i]);
+			MemFree(BTableX[i]);
+			MemFree(BTableY[i]);
+		}
+
 }
 
 /*****************************************************************************/
+void	CLayerTile3d::CalcDelta()
+{
+VECTOR	BlkPos;
+SVECTOR	Pnt={-BLOCK_SIZE/2,-BLOCK_SIZE/2,-BLOCK_SIZE*4};
+s16		*FTab,*BTab;
+		CGameScene::setCameraMtx();
 
+		for (int i=0; i<16; i++)
+		{
+			FTab=(s16*)MemAlloc(DeltaTableSizeX*sizeof(s16),"FTableXTable");
+			BTab=(s16*)MemAlloc(DeltaTableSizeX*sizeof(s16),"BTableXTable");
+			FTableX[i]=FTab;
+			BTableX[i]=BTab;
+			ASSERT(FTab);
+			ASSERT(BTab);
+			BlkPos.vx=RENDER_X_OFS-i;
+			BlkPos.vy=RENDER_Y_OFS;
+			for (int x=0; x<DeltaTableSizeX; x++)
+			{
+				s32		Tmp;
+				DVECTOR	O;
+				CMX_SetTransMtxXY(&BlkPos);
+				Pnt.vz=-BLOCK_SIZE*4;
+				RotTransPers(&Pnt,(s32*)&O,&Tmp,&Tmp);
+				FTab[x]=O.vx;
+				Pnt.vz=+BLOCK_SIZE*4;
+				RotTransPers(&Pnt,(s32*)&O,&Tmp,&Tmp);
+				BTab[x]=O.vx;
+				BlkPos.vx+=BLOCK_SIZE;
+			}
+
+			FTab=(s16*)MemAlloc(DeltaTableSizeY*sizeof(s16),"FTableYTable");
+			BTab=(s16*)MemAlloc(DeltaTableSizeY*sizeof(s16),"BTableYTable");
+			FTableY[i]=FTab;
+			BTableY[i]=BTab;
+			ASSERT(FTab);
+			ASSERT(BTab);
+			BlkPos.vx=RENDER_X_OFS;
+			BlkPos.vy=RENDER_Y_OFS-i;
+			for (int y=0; y<DeltaTableSizeY; y++)
+			{
+				s32		Tmp;
+				DVECTOR	O;
+				CMX_SetTransMtxXY(&BlkPos);
+				Pnt.vz=-BLOCK_SIZE*4;
+				RotTransPers(&Pnt,(s32*)&O,&Tmp,&Tmp);
+				FTab[y]=O.vy;
+				Pnt.vz=+BLOCK_SIZE*4;
+				RotTransPers(&Pnt,(s32*)&O,&Tmp,&Tmp);
+				BTab[y]=O.vy;
+				BlkPos.vy+=BLOCK_SIZE;
+			}
+		}
+		DeltaF=FTableX[0][1]-FTableX[0][0];
+		DeltaB=BTableY[0][1]-BTableY[0][0];
+
+}
+
+/*****************************************************************************/
 void	CLayerTile3d::think(DVECTOR &MapPos)
 {
 			MapXY.vx=MapPos.vx>>4;
@@ -96,14 +209,20 @@ void	CLayerTile3d::think(DVECTOR &MapPos)
 			ShiftY=(MapPos.vy & 15);
 
 			RenderOfs.vx=RenderOfs.vy=0;
+			DeltaFOfs.vx=DeltaFOfs.vy=0;
+			DeltaBOfs.vx=DeltaBOfs.vy=0;
 			if (MapXY.vx<0) 
 			{
 				RenderOfs.vx=-MapXY.vx*BLOCK_SIZE;
+				DeltaFOfs.vx=-MapXY.vx*DeltaF;
+				DeltaBOfs.vx=-MapXY.vx*DeltaB;
 				MapXY.vx=0;
 			}
 			if (MapXY.vy<0) 
 			{
 				RenderOfs.vy=-MapXY.vy*BLOCK_SIZE;
+				DeltaFOfs.vy=-MapXY.vy*DeltaF;
+				DeltaBOfs.vy=-MapXY.vy*DeltaB;
 				MapXY.vy=0;
 			}
 
@@ -126,8 +245,10 @@ void	CLayerTile3d::CacheElemVtx(sElem3d *Elem)
 int		Count=Elem->VtxTriCount;
 sVtx	*V0,*V1,*V2;
 u16		*IdxTable=&VtxIdxList[Elem->VtxIdxStart];
-u32		*OutVtx=(u32*)SCRATCH_RAM;
-u32		*OutPtr;
+s32		*OutVtx=(s32*)SCRATCH_RAM;
+s32		*OutPtr;
+
+		OutVtx+=8;
 
 		V0=&VtxList[*IdxTable++];
 		V1=&VtxList[*IdxTable++];
@@ -160,6 +281,10 @@ u32				P0,P1,P2;
 s32				ClipZ;
 sOT				*ThisOT;
 VECTOR			BlkPos;
+DVECTOR			*DP0,*DP1,*DP2,*DP3;
+
+s16				*DeltaFY=FTableY[ShiftY];
+s16				*DeltaBY=BTableY[ShiftY];
 
 // Setup Trans Matrix
 		BlkPos.vx=RENDER_X_OFS-(ShiftX)+RenderOfs.vx;
@@ -169,6 +294,8 @@ VECTOR			BlkPos;
 		{
 			sTileMapElem	*MapRow=MapPtr;
 			s32				BlkXOld=BlkPos.vx;
+			s16				*DeltaFX=FTableX[ShiftX];
+			s16				*DeltaBX=BTableX[ShiftX];
 
 			for (int X=0; X<RenderW; X++)
 			{
@@ -181,50 +308,90 @@ VECTOR			BlkPos;
 				int			TriCount=Elem->TriCount;				
 				sTri		*TList=&TriList[Elem->TriStart];
 
-				CMX_SetTransMtxXY(&BlkPos);
-				CMX_SetRotMatrixXY(&FTab->Mtx);
-				CacheElemVtx(Elem);
-				while (TriCount--)	// Blank tiles rejected here (as no tri-count)
+				if (TriCount)	// Blank tiles rejected here, to prevent over processing (as no tri-count)
 				{
+					CMX_SetTransMtxXY(&BlkPos);
+					CMX_SetRotMatrixXY(&FTab->Mtx);
 
-					P0=XYList[TList->P0]; 
-					P1=XYList[TList->P1]; 
-					P2=XYList[TList->P2];
-					gte_ldsxy0(P0);
-					gte_ldsxy1(P1);
-					gte_ldsxy2(P2);
-					
-					setlen(TPrimPtr, GPU_PolyFT3Tag);
-					TPrimPtr->code=TList->PolyCode;
-					gte_nclip_b();	// 8 cycles
+					CacheElemVtx(Elem);
 
-					setShadeTex(TPrimPtr,1);
+					s16	FL=DeltaFX[0]+DeltaFOfs.vx;
+					s16	FR=DeltaFX[1]+DeltaFOfs.vx;
+					s16	FU=DeltaFY[0]+DeltaFOfs.vy;
+					s16	FD=DeltaFY[1]+DeltaFOfs.vy;
+					DP0=FTab->DeltaTab[0];
+					DP1=FTab->DeltaTab[1];
+					DP2=FTab->DeltaTab[2];
+					DP3=FTab->DeltaTab[3];
+					DP0->vx=FL;
+					DP0->vy=FU;
+					DP1->vx=FR;
+					DP1->vy=FU;
+					DP2->vx=FL;
+					DP2->vy=FD;
+					DP3->vx=FR;
+					DP3->vy=FD;
 
-					T0=*(u32*)&TList->uv0;		// Get UV0 & TPage
-					T1=*(u32*)&TList->uv1;		// Get UV1 & Clut
-					T2=*(u16*)&TList->uv2;		// Get UV2
-					*(u32*)&TPrimPtr->u0=T0;	// Set UV0
-					*(u32*)&TPrimPtr->u1=T1;	// Set UV1
-					*(u16*)&TPrimPtr->u2=T2;	// Set UV2
-					gte_stopz(&ClipZ);
-					ThisOT=OtPtr+TList->OTOfs;
-					ClipZ^=FTab->ClipCode;
-					TList++;
-					if (ClipZ<0)
+					s16	BL=DeltaBX[0]+DeltaBOfs.vx;
+					s16	BR=DeltaBX[1]+DeltaBOfs.vx;
+					s16	BU=DeltaBY[0]+DeltaBOfs.vy;
+					s16	BD=DeltaBY[1]+DeltaBOfs.vy;
+					DP0=FTab->DeltaTab[4];
+					DP1=FTab->DeltaTab[5];
+					DP2=FTab->DeltaTab[6];
+					DP3=FTab->DeltaTab[7];
+					DP0->vx=BL;
+					DP0->vy=BU;
+					DP1->vx=BR;
+					DP1->vy=BU;
+					DP2->vx=BL;
+					DP2->vy=BD;
+					DP3->vx=BR;
+					DP3->vy=BD;
+
+					while (TriCount--)
 					{
-						*(u32*)&TPrimPtr->x0=P0;	// Set XY0
-						*(u32*)&TPrimPtr->x1=P1;	// Set XY1
-						*(u32*)&TPrimPtr->x2=P2;	// Set XY2
-						addPrim(ThisOT,TPrimPtr);
-						TPrimPtr++;
+						P0=XYList[TList->P0]; 
+						P1=XYList[TList->P1]; 
+						P2=XYList[TList->P2];
+						gte_ldsxy0(P0);
+						gte_ldsxy1(P1);
+						gte_ldsxy2(P2);
+						
+						setlen(TPrimPtr, GPU_PolyFT3Tag);
+						TPrimPtr->code=TList->PolyCode;
+						gte_nclip_b();	// 8 cycles
+
+						setShadeTex(TPrimPtr,1);
+
+						T0=*(u32*)&TList->uv0;		// Get UV0 & TPage
+						T1=*(u32*)&TList->uv1;		// Get UV1 & Clut
+						T2=*(u16*)&TList->uv2;		// Get UV2
+						*(u32*)&TPrimPtr->u0=T0;	// Set UV0
+						*(u32*)&TPrimPtr->u1=T1;	// Set UV1
+						*(u16*)&TPrimPtr->u2=T2;	// Set UV2
+						gte_stopz(&ClipZ);
+						ThisOT=OtPtr+TList->OTOfs;
+						ClipZ^=FTab->ClipCode;
+						TList++;
+						if (ClipZ<0)
+						{
+							*(u32*)&TPrimPtr->x0=P0;	// Set XY0
+							*(u32*)&TPrimPtr->x1=P1;	// Set XY1
+							*(u32*)&TPrimPtr->x2=P2;	// Set XY2
+							addPrim(ThisOT,TPrimPtr);
+							TPrimPtr++;
+						}
 					}
 				}
 				MapRow++;
 				BlkPos.vx+=BLOCK_SIZE;
+				DeltaFX++; DeltaBX++;
 			}
 			MapPtr+=MapWidth;
 			BlkPos.vx=BlkXOld;
 			BlkPos.vy+=BLOCK_SIZE;
+			DeltaFY++; DeltaBY++;
 		}
 
 		SetPrimPtr((u8*)TPrimPtr);
@@ -238,92 +405,3 @@ int		QCount=0;
 #endif
 
 }
-/*
-void	CLayerTile3d::render()
-{
-sTileMapElem	*MapPtr=GetMapPos();
-u8				*PrimPtr=GetPrimPtr();
-POLY_FT3		*TPrimPtr=(POLY_FT3*)PrimPtr;
-sVtx			*P0,*P1,*P2;
-u32				T0,T1,T2;
-s32				ClipZ;
-sOT				*ThisOT;
-VECTOR			BlkPos;
-
-// Setup Trans Matrix
-		BlkPos.vx=RENDER_X_OFS-(ShiftX)+RenderOfs.vx;
-		BlkPos.vy=RENDER_Y_OFS-(ShiftY)+RenderOfs.vy;
-
-		for (int Y=0; Y<RenderH; Y++)
-		{
-			sTileMapElem	*MapRow=MapPtr;
-			s32				BlkXOld=BlkPos.vx;
-
-			for (int X=0; X<RenderW; X++)
-			{
-				u16			Tile=MapRow->Tile;
-				u16			TileIdx=Tile>>2;
-				u16			Flip=Tile&3;
-				sFlipTable	*FTab=&FlipTable[Flip];
-				sElem3d		*Elem=&ElemBank3d[TileIdx];
-				int			TriCount=Elem->TriCount;				
-				sTri		*TList=&TriList[Elem->TriStart];
-				u16			*IdxTable=&VtxIdxList[Elem->VtxIdxStart];
-
-//				P0=&VtxList[TList->P0]; P1=&VtxList[TList->P1]; P2=&VtxList[TList->P2];
-				P0=&VtxList[IdxTable[TList->P0]]; 
-				P1=&VtxList[IdxTable[TList->P1]]; 
-				P2=&VtxList[IdxTable[TList->P2]];
-				CMX_SetTransMtxXY(&BlkPos);
-				CMX_SetRotMatrixXY(&FTab->Mtx);
-				while (TriCount--)	// Blank tiles rejected here (as no tri-count)
-				{
-					gte_ldv3(P0,P1,P2);
-					setlen(TPrimPtr, GPU_PolyFT3Tag);
-					TPrimPtr->code=TList->PolyCode;
-					gte_rtpt_b();
-//					setShadeTex(TPrimPtr,1);
-			
-					T0=*(u32*)&TList->uv0;		// Get UV0 & TPage
-					T1=*(u32*)&TList->uv1;		// Get UV1 & Clut
-					T2=*(u16*)&TList->uv2;		// Get UV2
-					*(u32*)&TPrimPtr->u0=T0;	// Set UV0
-					*(u32*)&TPrimPtr->u1=T1;	// Set UV1
-					*(u16*)&TPrimPtr->u2=T2;	// Set UV2
-extern u8 GlobalRGB[];
-					setRGB0(TPrimPtr,GlobalRGB[1],GlobalRGB[1],GlobalRGB[1]);
-
-					ThisOT=OtPtr+TList->OTOfs;
-					TList++;
-					P0=&VtxList[TList->P0]; P1=&VtxList[TList->P1]; P2=&VtxList[TList->P2];	// Pre-fetch next Tri
-					gte_nclip_b();
-					gte_stsxy3_ft3(TPrimPtr);
-					gte_stopz(&ClipZ);
-					ClipZ^=FTab->ClipCode;
-					if (ClipZ<0)
-					{
-						addPrim(ThisOT,TPrimPtr);
-						TPrimPtr++;
-					}
-				}
-				MapRow++;
-				BlkPos.vx+=BLOCK_SIZE;
-			}
-			MapPtr+=MapWidth;
-			BlkPos.vx=BlkXOld;
-			BlkPos.vy+=BLOCK_SIZE;
-		}
-
-		SetPrimPtr((u8*)TPrimPtr);
-
-#if		defined(_SHOW_POLYZ_)
-char	Txt[256];
-int		TCount=((u8*)TPrimPtr-PrimPtr)/sizeof(POLY_FT3);
-int		QCount=0;
-		sprintf(Txt,"TC %i\nQC %i",TCount,QCount);
-		Font->print( 128, 32, Txt);
-#endif
-
-}
-
-*/
\ No newline at end of file
diff --git a/source/level/layertile3d.h b/source/level/layertile3d.h
index 491361d0a..8c3178d0d 100644
--- a/source/level/layertile3d.h
+++ b/source/level/layertile3d.h
@@ -18,6 +18,7 @@
 struct	sFlipTable
 {
 	s16		Mtx[4];
+	DVECTOR	*DeltaTab[8];
 	s32		ClipCode;
 };
 extern	sFlipTable	FlipTable[];
@@ -37,6 +38,7 @@ public:
 
 protected:
 		void			CacheElemVtx(sElem3d *Elem);
+		void			CalcDelta();
 
 		sElem3d			*ElemBank3d;
 		sTri			*TriList;
@@ -44,6 +46,16 @@ protected:
 		sVtx			*VtxList;
 		u16				*VtxIdxList;
 		DVECTOR			RenderOfs;
+
+		s16				*FTableX[16];
+		s16				*FTableY[16];
+		s16				*BTableX[16];
+		s16				*BTableY[16];
+		DVECTOR			DeltaFOfs;
+		DVECTOR			DeltaBOfs;
+		s16				DeltaF,DeltaB;
+
+
 };
 
 
diff --git a/tools/Data/bin/MkLevel.exe b/tools/Data/bin/MkLevel.exe
index 965fb2328..8647d4688 100644
Binary files a/tools/Data/bin/MkLevel.exe and b/tools/Data/bin/MkLevel.exe differ