Moved stuff from mapblock{h,cpp} to mapblock_mesh.{h,cpp} and content_mapblock.{h,cpp}

10 files changed, 1877 insertions, 1832 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 05b56310f..10ed8c4af 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -50,6 +50,7 @@ configure_file(
 )
 
 set(common_SRCS
+	content_mapblock.cpp
 	content_mapnode.cpp
 	auth.cpp
 	collision.cpp
@@ -86,6 +87,7 @@ set(common_SRCS
 # Client sources
 set(minetest_SRCS
 	${common_SRCS}
+	mapblock_mesh.cpp
 	farmesh.cpp
 	keycode.cpp
 	clouds.cpp
diff --git a/src/content_mapblock.cpp b/src/content_mapblock.cpp
new file mode 100644
index 000000000..e7c705177
--- /dev/null
+++ b/src/content_mapblock.cpp
@@ -0,0 +1,831 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "content_mapblock.h"
+#include "content_mapnode.h"
+#include "main.h" // For g_settings and g_texturesource
+
+#ifndef SERVER
+// Create a cuboid.
+//  material  - the material to use (for all 6 faces)
+//  collector - the MeshCollector for the resulting polygons
+//  pa        - texture atlas pointer for the material
+//  c         - vertex colour - used for all
+//  pos       - the position of the centre of the cuboid
+//  rz,ry,rz  - the radius of the cuboid in each dimension
+//  txc       - texture coordinates - this is a list of texture coordinates
+//              for the opposite corners of each face - therefore, there
+//              should be (2+2)*6=24 values in the list. Alternatively, pass
+//              NULL to use the entire texture for each face. The order of
+//              the faces in the list is top-backi-right-front-left-bottom
+//              If you specified 0,0,1,1 for each face, that would be the
+//              same as passing NULL.
+void makeCuboid(video::SMaterial &material, MeshCollector *collector,
+	AtlasPointer* pa, video::SColor &c,
+	v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
+{
+	f32 tu0=pa->x0();
+	f32 tu1=pa->x1();
+	f32 tv0=pa->y0();
+	f32 tv1=pa->y1();
+	f32 txus=tu1-tu0;
+	f32 txvs=tv1-tv0;
+
+	video::S3DVertex v[4] =
+	{
+		video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
+		video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
+		video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
+		video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
+	};
+
+	for(int i=0;i<6;i++)
+	{
+		switch(i)
+		{
+			case 0:	// top
+				v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
+				v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
+				v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
+				v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
+				break;
+			case 1: // back
+				v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
+				v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
+				v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
+				v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
+				break;
+			case 2: //right
+				v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
+				v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
+				v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
+				v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
+				break;
+			case 3: // front
+				v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
+				v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
+				v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
+				v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
+				break;
+			case 4: // left
+				v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
+				v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
+				v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
+				v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
+				break;
+			case 5: // bottom
+				v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
+				v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
+				v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
+				v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
+				break;
+		}
+
+		if(txc!=NULL)
+		{
+			v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
+			v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
+			v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
+			v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
+			txc+=4;
+		}
+
+		for(u16 i=0; i<4; i++)
+			v[i].Pos += pos;
+		u16 indices[] = {0,1,2,2,3,0};
+		collector->append(material, v, 4, indices, 6);
+
+	}
+
+}
+#endif
+
+#ifndef SERVER
+void mapblock_mesh_generate_special(MeshMakeData *data,
+		MeshCollector &collector)
+{
+	// 0ms
+	//TimeTaker timer("mapblock_mesh_generate_special()");
+
+	/*
+		Some settings
+	*/
+	bool new_style_water = g_settings.getBool("new_style_water");
+	bool new_style_leaves = g_settings.getBool("new_style_leaves");
+	//bool smooth_lighting = g_settings.getBool("smooth_lighting");
+	
+	float node_water_level = 1.0;
+	if(new_style_water)
+		node_water_level = 0.85;
+	
+	v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
+
+	// Flowing water material
+	video::SMaterial material_water1;
+	material_water1.setFlag(video::EMF_LIGHTING, false);
+	material_water1.setFlag(video::EMF_BACK_FACE_CULLING, false);
+	material_water1.setFlag(video::EMF_BILINEAR_FILTER, false);
+	material_water1.setFlag(video::EMF_FOG_ENABLE, true);
+	material_water1.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
+	AtlasPointer pa_water1 = g_texturesource->getTexture(
+			g_texturesource->getTextureId("water.png"));
+	material_water1.setTexture(0, pa_water1.atlas);
+
+	// New-style leaves material
+	video::SMaterial material_leaves1;
+	material_leaves1.setFlag(video::EMF_LIGHTING, false);
+	//material_leaves1.setFlag(video::EMF_BACK_FACE_CULLING, false);
+	material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
+	material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
+	material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+	AtlasPointer pa_leaves1 = g_texturesource->getTexture(
+			g_texturesource->getTextureId("leaves.png"));
+	material_leaves1.setTexture(0, pa_leaves1.atlas);
+
+	// Glass material
+	video::SMaterial material_glass;
+	material_glass.setFlag(video::EMF_LIGHTING, false);
+	material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
+	material_glass.setFlag(video::EMF_FOG_ENABLE, true);
+	material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+	AtlasPointer pa_glass = g_texturesource->getTexture(
+			g_texturesource->getTextureId("glass.png"));
+	material_glass.setTexture(0, pa_glass.atlas);
+
+	// Wood material
+	video::SMaterial material_wood;
+	material_wood.setFlag(video::EMF_LIGHTING, false);
+	material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
+	material_wood.setFlag(video::EMF_FOG_ENABLE, true);
+	material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+	AtlasPointer pa_wood = g_texturesource->getTexture(
+			g_texturesource->getTextureId("wood.png"));
+	material_wood.setTexture(0, pa_wood.atlas);
+
+	for(s16 z=0; z<MAP_BLOCKSIZE; z++)
+	for(s16 y=0; y<MAP_BLOCKSIZE; y++)
+	for(s16 x=0; x<MAP_BLOCKSIZE; x++)
+	{
+		v3s16 p(x,y,z);
+
+		MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
+		
+		/*
+			Add torches to mesh
+		*/
+		if(n.d == CONTENT_TORCH)
+		{
+			video::SColor c(255,255,255,255);
+
+			// Wall at X+ of node
+			video::S3DVertex vertices[4] =
+			{
+				video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
+				video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
+				video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
+				video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
+			};
+
+			v3s16 dir = unpackDir(n.dir);
+
+			for(s32 i=0; i<4; i++)
+			{
+				if(dir == v3s16(1,0,0))
+					vertices[i].Pos.rotateXZBy(0);
+				if(dir == v3s16(-1,0,0))
+					vertices[i].Pos.rotateXZBy(180);
+				if(dir == v3s16(0,0,1))
+					vertices[i].Pos.rotateXZBy(90);
+				if(dir == v3s16(0,0,-1))
+					vertices[i].Pos.rotateXZBy(-90);
+				if(dir == v3s16(0,-1,0))
+					vertices[i].Pos.rotateXZBy(45);
+				if(dir == v3s16(0,1,0))
+					vertices[i].Pos.rotateXZBy(-45);
+
+				vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+			}
+
+			// Set material
+			video::SMaterial material;
+			material.setFlag(video::EMF_LIGHTING, false);
+			material.setFlag(video::EMF_BACK_FACE_CULLING, false);
+			material.setFlag(video::EMF_BILINEAR_FILTER, false);
+			//material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
+			material.MaterialType
+					= video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+
+			if(dir == v3s16(0,-1,0))
+				material.setTexture(0,
+						g_texturesource->getTextureRaw("torch_on_floor.png"));
+			else if(dir == v3s16(0,1,0))
+				material.setTexture(0,
+						g_texturesource->getTextureRaw("torch_on_ceiling.png"));
+			// For backwards compatibility
+			else if(dir == v3s16(0,0,0))
+				material.setTexture(0,
+						g_texturesource->getTextureRaw("torch_on_floor.png"));
+			else
+				material.setTexture(0, 
+						g_texturesource->getTextureRaw("torch.png"));
+
+			u16 indices[] = {0,1,2,2,3,0};
+			// Add to mesh collector
+			collector.append(material, vertices, 4, indices, 6);
+		}
+		/*
+			Signs on walls
+		*/
+		if(n.d == CONTENT_SIGN_WALL)
+		{
+			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
+			video::SColor c(255,l,l,l);
+				
+			float d = (float)BS/16;
+			// Wall at X+ of node
+			video::S3DVertex vertices[4] =
+			{
+				video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
+				video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
+				video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
+				video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
+			};
+
+			v3s16 dir = unpackDir(n.dir);
+
+			for(s32 i=0; i<4; i++)
+			{
+				if(dir == v3s16(1,0,0))
+					vertices[i].Pos.rotateXZBy(0);
+				if(dir == v3s16(-1,0,0))
+					vertices[i].Pos.rotateXZBy(180);
+				if(dir == v3s16(0,0,1))
+					vertices[i].Pos.rotateXZBy(90);
+				if(dir == v3s16(0,0,-1))
+					vertices[i].Pos.rotateXZBy(-90);
+				if(dir == v3s16(0,-1,0))
+					vertices[i].Pos.rotateXYBy(-90);
+				if(dir == v3s16(0,1,0))
+					vertices[i].Pos.rotateXYBy(90);
+
+				vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+			}
+
+			// Set material
+			video::SMaterial material;
+			material.setFlag(video::EMF_LIGHTING, false);
+			material.setFlag(video::EMF_BACK_FACE_CULLING, false);
+			material.setFlag(video::EMF_BILINEAR_FILTER, false);
+			material.setFlag(video::EMF_FOG_ENABLE, true);
+			//material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
+			material.MaterialType
+					= video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+
+			material.setTexture(0, 
+					g_texturesource->getTextureRaw("sign_wall.png"));
+
+			u16 indices[] = {0,1,2,2,3,0};
+			// Add to mesh collector
+			collector.append(material, vertices, 4, indices, 6);
+		}
+		/*
+			Add flowing water to mesh
+		*/
+		else if(n.d == CONTENT_WATER)
+		{
+			bool top_is_water = false;
+			MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
+			if(ntop.d == CONTENT_WATER || ntop.d == CONTENT_WATERSOURCE)
+				top_is_water = true;
+			
+			u8 l = 0;
+			// Use the light of the node on top if possible
+			if(content_features(ntop.d).param_type == CPT_LIGHT)
+				l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
+			// Otherwise use the light of this node (the water)
+			else
+				l = decode_light(n.getLightBlend(data->m_daynight_ratio));
+			video::SColor c(WATER_ALPHA,l,l,l);
+			
+			// Neighbor water levels (key = relative position)
+			// Includes current node
+			core::map<v3s16, f32> neighbor_levels;
+			core::map<v3s16, u8> neighbor_contents;
+			core::map<v3s16, u8> neighbor_flags;
+			const u8 neighborflag_top_is_water = 0x01;
+			v3s16 neighbor_dirs[9] = {
+				v3s16(0,0,0),
+				v3s16(0,0,1),
+				v3s16(0,0,-1),
+				v3s16(1,0,0),
+				v3s16(-1,0,0),
+				v3s16(1,0,1),
+				v3s16(-1,0,-1),
+				v3s16(1,0,-1),
+				v3s16(-1,0,1),
+			};
+			for(u32 i=0; i<9; i++)
+			{
+				u8 content = CONTENT_AIR;
+				float level = -0.5 * BS;
+				u8 flags = 0;
+				// Check neighbor
+				v3s16 p2 = p + neighbor_dirs[i];
+				MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
+				if(n2.d != CONTENT_IGNORE)
+				{
+					content = n2.d;
+
+					if(n2.d == CONTENT_WATERSOURCE)
+						level = (-0.5+node_water_level) * BS;
+					else if(n2.d == CONTENT_WATER)
+						level = (-0.5 + ((float)n2.param2 + 0.5) / 8.0
+								* node_water_level) * BS;
+
+					// Check node above neighbor.
+					// NOTE: This doesn't get executed if neighbor
+					//       doesn't exist
+					p2.Y += 1;
+					n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
+					if(n2.d == CONTENT_WATERSOURCE || n2.d == CONTENT_WATER)
+						flags |= neighborflag_top_is_water;
+				}
+				
+				neighbor_levels.insert(neighbor_dirs[i], level);
+				neighbor_contents.insert(neighbor_dirs[i], content);
+				neighbor_flags.insert(neighbor_dirs[i], flags);
+			}
+
+			//float water_level = (-0.5 + ((float)n.param2 + 0.5) / 8.0) * BS;
+			//float water_level = neighbor_levels[v3s16(0,0,0)];
+
+			// Corner heights (average between four waters)
+			f32 corner_levels[4];
+			
+			v3s16 halfdirs[4] = {
+				v3s16(0,0,0),
+				v3s16(1,0,0),
+				v3s16(1,0,1),
+				v3s16(0,0,1),
+			};
+			for(u32 i=0; i<4; i++)
+			{
+				v3s16 cornerdir = halfdirs[i];
+				float cornerlevel = 0;
+				u32 valid_count = 0;
+				for(u32 j=0; j<4; j++)
+				{
+					v3s16 neighbordir = cornerdir - halfdirs[j];
+					u8 content = neighbor_contents[neighbordir];
+					// Special case for source nodes
+					if(content == CONTENT_WATERSOURCE)
+					{
+						cornerlevel = (-0.5+node_water_level)*BS;
+						valid_count = 1;
+						break;
+					}
+					else if(content == CONTENT_WATER)
+					{
+						cornerlevel += neighbor_levels[neighbordir];
+						valid_count++;
+					}
+					else if(content == CONTENT_AIR)
+					{
+						cornerlevel += -0.5*BS;
+						valid_count++;
+					}
+				}
+				if(valid_count > 0)
+					cornerlevel /= valid_count;
+				corner_levels[i] = cornerlevel;
+			}
+
+			/*
+				Generate sides
+			*/
+
+			v3s16 side_dirs[4] = {
+				v3s16(1,0,0),
+				v3s16(-1,0,0),
+				v3s16(0,0,1),
+				v3s16(0,0,-1),
+			};
+			s16 side_corners[4][2] = {
+				{1, 2},
+				{3, 0},
+				{2, 3},
+				{0, 1},
+			};
+			for(u32 i=0; i<4; i++)
+			{
+				v3s16 dir = side_dirs[i];
+
+				/*
+					If our topside is water and neighbor's topside
+					is water, don't draw side face
+				*/
+				if(top_is_water &&
+						neighbor_flags[dir] & neighborflag_top_is_water)
+					continue;
+
+				u8 neighbor_content = neighbor_contents[dir];
+				
+				// Don't draw face if neighbor is not air or water
+				if(neighbor_content != CONTENT_AIR
+						&& neighbor_content != CONTENT_WATER)
+					continue;
+				
+				bool neighbor_is_water = (neighbor_content == CONTENT_WATER);
+				
+				// Don't draw any faces if neighbor is water and top is water
+				if(neighbor_is_water == true && top_is_water == false)
+					continue;
+				
+				video::S3DVertex vertices[4] =
+				{
+					/*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
+					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
+					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
+					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
+					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
+							pa_water1.x0(), pa_water1.y1()),
+					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
+							pa_water1.x1(), pa_water1.y1()),
+					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
+							pa_water1.x1(), pa_water1.y0()),
+					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
+							pa_water1.x0(), pa_water1.y0()),
+				};
+				
+				/*
+					If our topside is water, set upper border of face
+					at upper border of node
+				*/
+				if(top_is_water)
+				{
+					vertices[2].Pos.Y = 0.5*BS;
+					vertices[3].Pos.Y = 0.5*BS;
+				}
+				/*
+					Otherwise upper position of face is corner levels
+				*/
+				else
+				{
+					vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
+					vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
+				}
+				
+				/*
+					If neighbor is water, lower border of face is corner
+					water levels
+				*/
+				if(neighbor_is_water)
+				{
+					vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
+					vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
+				}
+				/*
+					If neighbor is not water, lower border of face is
+					lower border of node
+				*/
+				else
+				{
+					vertices[0].Pos.Y = -0.5*BS;
+					vertices[1].Pos.Y = -0.5*BS;
+				}
+				
+				for(s32 j=0; j<4; j++)
+				{
+					if(dir == v3s16(0,0,1))
+						vertices[j].Pos.rotateXZBy(0);
+					if(dir == v3s16(0,0,-1))
+						vertices[j].Pos.rotateXZBy(180);
+					if(dir == v3s16(-1,0,0))
+						vertices[j].Pos.rotateXZBy(90);
+					if(dir == v3s16(1,0,-0))
+						vertices[j].Pos.rotateXZBy(-90);
+
+					vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
+				}
+
+				u16 indices[] = {0,1,2,2,3,0};
+				// Add to mesh collector
+				collector.append(material_water1, vertices, 4, indices, 6);
+			}
+			
+			/*
+				Generate top side, if appropriate
+			*/
+			
+			if(top_is_water == false)
+			{
+				video::S3DVertex vertices[4] =
+				{
+					/*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
+					video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
+					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
+					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
+					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
+							pa_water1.x0(), pa_water1.y1()),
+					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
+							pa_water1.x1(), pa_water1.y1()),
+					video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
+							pa_water1.x1(), pa_water1.y0()),
+					video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
+							pa_water1.x0(), pa_water1.y0()),
+				};
+				
+				// This fixes a strange bug
+				s32 corner_resolve[4] = {3,2,1,0};
+
+				for(s32 i=0; i<4; i++)
+				{
+					//vertices[i].Pos.Y += water_level;
+					//vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
+					s32 j = corner_resolve[i];
+					vertices[i].Pos.Y += corner_levels[j];
+					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+				}
+
+				u16 indices[] = {0,1,2,2,3,0};
+				// Add to mesh collector
+				collector.append(material_water1, vertices, 4, indices, 6);
+			}
+		}
+		/*
+			Add water sources to mesh if using new style
+		*/
+		else if(n.d == CONTENT_WATERSOURCE && new_style_water)
+		{
+			//bool top_is_water = false;
+			bool top_is_air = false;
+			MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
+			/*if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
+				top_is_water = true;*/
+			if(n.d == CONTENT_AIR)
+				top_is_air = true;
+			
+			/*if(top_is_water == true)
+				continue;*/
+			if(top_is_air == false)
+				continue;
+
+			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
+			video::SColor c(WATER_ALPHA,l,l,l);
+			
+			video::S3DVertex vertices[4] =
+			{
+				/*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
+				video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
+				video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
+				video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
+				video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
+						pa_water1.x0(), pa_water1.y1()),
+				video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
+						pa_water1.x1(), pa_water1.y1()),
+				video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
+						pa_water1.x1(), pa_water1.y0()),
+				video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
+						pa_water1.x0(), pa_water1.y0()),
+			};
+
+			for(s32 i=0; i<4; i++)
+			{
+				vertices[i].Pos.Y += (-0.5+node_water_level)*BS;
+				vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+			}
+
+			u16 indices[] = {0,1,2,2,3,0};
+			// Add to mesh collector
+			collector.append(material_water1, vertices, 4, indices, 6);
+		}
+		/*
+			Add leaves if using new style
+		*/
+		else if(n.d == CONTENT_LEAVES && new_style_leaves)
+		{
+			/*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
+			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
+			video::SColor c(255,l,l,l);
+
+			for(u32 j=0; j<6; j++)
+			{
+				video::S3DVertex vertices[4] =
+				{
+					/*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
+					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
+					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
+					video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
+					video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
+						pa_leaves1.x0(), pa_leaves1.y1()),
+					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
+						pa_leaves1.x1(), pa_leaves1.y1()),
+					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
+						pa_leaves1.x1(), pa_leaves1.y0()),
+					video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
+						pa_leaves1.x0(), pa_leaves1.y0()),
+				};
+
+				if(j == 0)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(0);
+				}
+				else if(j == 1)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(180);
+				}
+				else if(j == 2)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(-90);
+				}
+				else if(j == 3)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(90);
+				}
+				else if(j == 4)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateYZBy(-90);
+				}
+				else if(j == 5)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateYZBy(90);
+				}
+
+				for(u16 i=0; i<4; i++)
+				{
+					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+				}
+
+				u16 indices[] = {0,1,2,2,3,0};
+				// Add to mesh collector
+				collector.append(material_leaves1, vertices, 4, indices, 6);
+			}
+		}
+		/*
+			Add glass
+		*/
+		else if(n.d == CONTENT_GLASS)
+		{
+			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
+			video::SColor c(255,l,l,l);
+
+			for(u32 j=0; j<6; j++)
+			{
+				video::S3DVertex vertices[4] =
+				{
+					video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
+						pa_glass.x0(), pa_glass.y1()),
+					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
+						pa_glass.x1(), pa_glass.y1()),
+					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
+						pa_glass.x1(), pa_glass.y0()),
+					video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
+						pa_glass.x0(), pa_glass.y0()),
+				};
+
+				if(j == 0)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(0);
+				}
+				else if(j == 1)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(180);
+				}
+				else if(j == 2)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(-90);
+				}
+				else if(j == 3)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(90);
+				}
+				else if(j == 4)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateYZBy(-90);
+				}
+				else if(j == 5)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateYZBy(90);
+				}
+
+				for(u16 i=0; i<4; i++)
+				{
+					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+				}
+
+				u16 indices[] = {0,1,2,2,3,0};
+				// Add to mesh collector
+				collector.append(material_glass, vertices, 4, indices, 6);
+			}
+		}
+		/*
+			Add fence
+		*/
+		else if(n.d == CONTENT_FENCE)
+		{
+			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
+			video::SColor c(255,l,l,l);
+
+			const f32 post_rad=(f32)BS/10;
+			const f32 bar_rad=(f32)BS/20;
+			const f32 bar_len=(f32)(BS/2)-post_rad;
+
+			// The post - always present
+			v3f pos = intToFloat(p+blockpos_nodes, BS);
+			f32 postuv[24]={
+					0.4,0.4,0.6,0.6,
+					0.35,0,0.65,1,
+					0.35,0,0.65,1,
+					0.35,0,0.65,1,
+					0.35,0,0.65,1,
+					0.4,0.4,0.6,0.6};
+			makeCuboid(material_wood, &collector,
+				&pa_wood, c, pos,
+				post_rad,BS/2,post_rad, postuv);
+
+			// Now a section of fence, +X, if there's a post there
+			v3s16 p2 = p;
+			p2.X++;
+			MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
+			if(n2.d == CONTENT_FENCE)
+			{
+				pos = intToFloat(p+blockpos_nodes, BS);
+				pos.X += BS/2;
+				pos.Y += BS/4;
+				f32 xrailuv[24]={
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6};
+				makeCuboid(material_wood, &collector,
+					&pa_wood, c, pos,
+					bar_len,bar_rad,bar_rad, xrailuv);
+
+				pos.Y -= BS/2;
+				makeCuboid(material_wood, &collector,
+					&pa_wood, c, pos,
+					bar_len,bar_rad,bar_rad, xrailuv);
+			}
+
+			// Now a section of fence, +Z, if there's a post there
+			p2 = p;
+			p2.Z++;
+			n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
+			if(n2.d == CONTENT_FENCE)
+			{
+				pos = intToFloat(p+blockpos_nodes, BS);
+				pos.Z += BS/2;
+				pos.Y += BS/4;
+				f32 zrailuv[24]={
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6,
+					0,0.4,1,0.6};
+				makeCuboid(material_wood, &collector,
+					&pa_wood, c, pos,
+					bar_rad,bar_rad,bar_len, zrailuv);
+				pos.Y -= BS/2;
+				makeCuboid(material_wood, &collector,
+					&pa_wood, c, pos,
+					bar_rad,bar_rad,bar_len, zrailuv);
+
+			}
+
+		}
+
+	}
+}
+#endif
+
diff --git a/src/content_mapblock.h b/src/content_mapblock.h
new file mode 100644
index 000000000..438422014
--- /dev/null
+++ b/src/content_mapblock.h
@@ -0,0 +1,31 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef CONTENT_MAPBLOCK_HEADER
+#define CONTENT_MAPBLOCK_HEADER
+
+#ifndef SERVER
+	#include "mapblock_mesh.h"
+	#include "utility.h"
+void mapblock_mesh_generate_special(MeshMakeData *data,
+		MeshCollector &collector);
+#endif
+
+#endif
+
diff --git a/src/map.cpp b/src/map.cpp
index 515885d87..f6278e86e 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -4829,7 +4829,7 @@ MapBlock * ServerMap::emergeBlock(
 		bool black_air_left = false;
 		bool bottom_invalid =
 				block->propagateSunlight(light_sources, true,
-				&black_air_left, true);
+				&black_air_left);
 
 		// If sunlight didn't reach everywhere and part of block is
 		// above ground, lighting has to be properly updated
diff --git a/src/mapblock.cpp b/src/mapblock.cpp
index 70006a718..db7894a7b 100644
--- a/src/mapblock.cpp
+++ b/src/mapblock.cpp
@@ -24,1702 +24,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "light.h"
 #include <sstream>
 
-// TODO: Move content-aware mesh generation to a separate file
-#include "content_mapnode.h"
-
-#ifndef SERVER
-void MeshMakeData::fill(u32 daynight_ratio, MapBlock *block)
-{
-	m_daynight_ratio = daynight_ratio;
-	m_blockpos = block->getPos();
-
-	v3s16 blockpos_nodes = m_blockpos*MAP_BLOCKSIZE;
-	
-	/*
-		There is no harm not copying the TempMods of the neighbors
-		because they are already copied to this block
-	*/
-	m_temp_mods.clear();
-	block->copyTempMods(m_temp_mods);
-	
-	/*
-		Copy data
-	*/
-
-	// Allocate this block + neighbors
-	m_vmanip.clear();
-	m_vmanip.addArea(VoxelArea(blockpos_nodes-v3s16(1,1,1)*MAP_BLOCKSIZE,
-			blockpos_nodes+v3s16(1,1,1)*MAP_BLOCKSIZE*2-v3s16(1,1,1)));
-
-	{
-		//TimeTaker timer("copy central block data");
-		// 0ms
-
-		// Copy our data
-		block->copyTo(m_vmanip);
-	}
-	{
-		//TimeTaker timer("copy neighbor block data");
-		// 0ms
-
-		/*
-			Copy neighbors. This is lightning fast.
-			Copying only the borders would be *very* slow.
-		*/
-		
-		// Get map
-		NodeContainer *parentcontainer = block->getParent();
-		// This will only work if the parent is the map
-		assert(parentcontainer->nodeContainerId() == NODECONTAINER_ID_MAP);
-		// OK, we have the map!
-		Map *map = (Map*)parentcontainer;
-
-		for(u16 i=0; i<6; i++)
-		{
-			const v3s16 &dir = g_6dirs[i];
-			v3s16 bp = m_blockpos + dir;
-			MapBlock *b = map->getBlockNoCreateNoEx(bp);
-			if(b)
-				b->copyTo(m_vmanip);
-		}
-	}
-}
-#endif
-
-/*
-	Parameters must consist of air and !air.
-	Order doesn't matter.
-
-	If either of the nodes doesn't exist, light is 0.
-	
-	parameters:
-		daynight_ratio: 0...1000
-		n: getNodeParent(p)
-		n2: getNodeParent(p + face_dir)
-		face_dir: axis oriented unit vector from p to p2
-	
-	returns encoded light value.
-*/
-u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
-		v3s16 face_dir)
-{
-	try{
-		u8 light;
-		u8 l1 = n.getLightBlend(daynight_ratio);
-		u8 l2 = n2.getLightBlend(daynight_ratio);
-		if(l1 > l2)
-			light = l1;
-		else
-			light = l2;
-
-		// Make some nice difference to different sides
-
-		// This makes light come from a corner
-		/*if(face_dir.X == 1 || face_dir.Z == 1 || face_dir.Y == -1)
-			light = diminish_light(diminish_light(light));
-		else if(face_dir.X == -1 || face_dir.Z == -1)
-			light = diminish_light(light);*/
-		
-		// All neighboring faces have different shade (like in minecraft)
-		if(face_dir.X == 1 || face_dir.X == -1 || face_dir.Y == -1)
-			light = diminish_light(diminish_light(light));
-		else if(face_dir.Z == 1 || face_dir.Z == -1)
-			light = diminish_light(light);
-
-		return light;
-	}
-	catch(InvalidPositionException &e)
-	{
-		return 0;
-	}
-}
-
-#ifndef SERVER
-
-/*
-	vertex_dirs: v3s16[4]
-*/
-void getNodeVertexDirs(v3s16 dir, v3s16 *vertex_dirs)
-{
-	/*
-		If looked from outside the node towards the face, the corners are:
-		0: bottom-right
-		1: bottom-left
-		2: top-left
-		3: top-right
-	*/
-	if(dir == v3s16(0,0,1))
-	{
-		// If looking towards z+, this is the face that is behind
-		// the center point, facing towards z+.
-		vertex_dirs[0] = v3s16(-1,-1, 1);
-		vertex_dirs[1] = v3s16( 1,-1, 1);
-		vertex_dirs[2] = v3s16( 1, 1, 1);
-		vertex_dirs[3] = v3s16(-1, 1, 1);
-	}
-	else if(dir == v3s16(0,0,-1))
-	{
-		// faces towards Z-
-		vertex_dirs[0] = v3s16( 1,-1,-1);
-		vertex_dirs[1] = v3s16(-1,-1,-1);
-		vertex_dirs[2] = v3s16(-1, 1,-1);
-		vertex_dirs[3] = v3s16( 1, 1,-1);
-	}
-	else if(dir == v3s16(1,0,0))
-	{
-		// faces towards X+
-		vertex_dirs[0] = v3s16( 1,-1, 1);
-		vertex_dirs[1] = v3s16( 1,-1,-1);
-		vertex_dirs[2] = v3s16( 1, 1,-1);
-		vertex_dirs[3] = v3s16( 1, 1, 1);
-	}
-	else if(dir == v3s16(-1,0,0))
-	{
-		// faces towards X-
-		vertex_dirs[0] = v3s16(-1,-1,-1);
-		vertex_dirs[1] = v3s16(-1,-1, 1);
-		vertex_dirs[2] = v3s16(-1, 1, 1);
-		vertex_dirs[3] = v3s16(-1, 1,-1);
-	}
-	else if(dir == v3s16(0,1,0))
-	{
-		// faces towards Y+ (assume Z- as "down" in texture)
-		vertex_dirs[0] = v3s16( 1, 1,-1);
-		vertex_dirs[1] = v3s16(-1, 1,-1);
-		vertex_dirs[2] = v3s16(-1, 1, 1);
-		vertex_dirs[3] = v3s16( 1, 1, 1);
-	}
-	else if(dir == v3s16(0,-1,0))
-	{
-		// faces towards Y- (assume Z+ as "down" in texture)
-		vertex_dirs[0] = v3s16( 1,-1, 1);
-		vertex_dirs[1] = v3s16(-1,-1, 1);
-		vertex_dirs[2] = v3s16(-1,-1,-1);
-		vertex_dirs[3] = v3s16( 1,-1,-1);
-	}
-}
-
-inline video::SColor lightColor(u8 alpha, u8 light)
-{
-	return video::SColor(alpha,light,light,light);
-}
-
-void makeFastFace(TileSpec tile, u8 li0, u8 li1, u8 li2, u8 li3, v3f p,
-		v3s16 dir, v3f scale, v3f posRelative_f,
-		core::array<FastFace> &dest)
-{
-	FastFace face;
-	
-	// Position is at the center of the cube.
-	v3f pos = p * BS;
-	posRelative_f *= BS;
-
-	v3f vertex_pos[4];
-	v3s16 vertex_dirs[4];
-	getNodeVertexDirs(dir, vertex_dirs);
-	for(u16 i=0; i<4; i++)
-	{
-		vertex_pos[i] = v3f(
-				BS/2*vertex_dirs[i].X,
-				BS/2*vertex_dirs[i].Y,
-				BS/2*vertex_dirs[i].Z
-		);
-	}
-
-	for(u16 i=0; i<4; i++)
-	{
-		vertex_pos[i].X *= scale.X;
-		vertex_pos[i].Y *= scale.Y;
-		vertex_pos[i].Z *= scale.Z;
-		vertex_pos[i] += pos + posRelative_f;
-	}
-
-	f32 abs_scale = 1.;
-	if     (scale.X < 0.999 || scale.X > 1.001) abs_scale = scale.X;
-	else if(scale.Y < 0.999 || scale.Y > 1.001) abs_scale = scale.Y;
-	else if(scale.Z < 0.999 || scale.Z > 1.001) abs_scale = scale.Z;
-
-	v3f zerovector = v3f(0,0,0);
-	
-	u8 alpha = tile.alpha;
-	/*u8 alpha = 255;
-	if(tile.id == TILE_WATER)
-		alpha = WATER_ALPHA;*/
-
-	float x0 = tile.texture.pos.X;
-	float y0 = tile.texture.pos.Y;
-	float w = tile.texture.size.X;
-	float h = tile.texture.size.Y;
-
-	/*video::SColor c = lightColor(alpha, li);
-
-	face.vertices[0] = video::S3DVertex(vertex_pos[0], v3f(0,1,0), c,
-			core::vector2d<f32>(x0+w*abs_scale, y0+h));
-	face.vertices[1] = video::S3DVertex(vertex_pos[1], v3f(0,1,0), c,
-			core::vector2d<f32>(x0, y0+h));
-	face.vertices[2] = video::S3DVertex(vertex_pos[2], v3f(0,1,0), c,
-			core::vector2d<f32>(x0, y0));
-	face.vertices[3] = video::S3DVertex(vertex_pos[3], v3f(0,1,0), c,
-			core::vector2d<f32>(x0+w*abs_scale, y0));*/
-
-	face.vertices[0] = video::S3DVertex(vertex_pos[0], v3f(0,1,0),
-			lightColor(alpha, li0),
-			core::vector2d<f32>(x0+w*abs_scale, y0+h));
-	face.vertices[1] = video::S3DVertex(vertex_pos[1], v3f(0,1,0),
-			lightColor(alpha, li1),
-			core::vector2d<f32>(x0, y0+h));
-	face.vertices[2] = video::S3DVertex(vertex_pos[2], v3f(0,1,0),
-			lightColor(alpha, li2),
-			core::vector2d<f32>(x0, y0));
-	face.vertices[3] = video::S3DVertex(vertex_pos[3], v3f(0,1,0),
-			lightColor(alpha, li3),
-			core::vector2d<f32>(x0+w*abs_scale, y0));
-
-	face.tile = tile;
-	//DEBUG
-	//f->tile = TILE_STONE;
-	
-	dest.push_back(face);
-}
-	
-/*
-	Gets node tile from any place relative to block.
-	Returns TILE_NODE if doesn't exist or should not be drawn.
-*/
-TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 face_dir,
-		NodeModMap &temp_mods)
-{
-	TileSpec spec;
-	spec = mn.getTile(face_dir);
-	
-	/*
-		Check temporary modifications on this node
-	*/
-	/*core::map<v3s16, NodeMod>::Node *n;
-	n = m_temp_mods.find(p);
-	// If modified
-	if(n != NULL)
-	{
-		struct NodeMod mod = n->getValue();*/
-	NodeMod mod;
-	if(temp_mods.get(p, &mod))
-	{
-		if(mod.type == NODEMOD_CHANGECONTENT)
-		{
-			MapNode mn2(mod.param);
-			spec = mn2.getTile(face_dir);
-		}
-		if(mod.type == NODEMOD_CRACK)
-		{
-			/*
-				Get texture id, translate it to name, append stuff to
-				name, get texture id
-			*/
-
-			// Get original texture name
-			u32 orig_id = spec.texture.id;
-			std::string orig_name = g_texturesource->getTextureName(orig_id);
-
-			// Create new texture name
-			std::ostringstream os;
-			os<<orig_name<<"^[crack"<<mod.param;
-
-			// Get new texture
-			u32 new_id = g_texturesource->getTextureId(os.str());
-			
-			/*dstream<<"MapBlock::getNodeTile(): Switching from "
-					<<orig_name<<" to "<<os.str()<<" ("
-					<<orig_id<<" to "<<new_id<<")"<<std::endl;*/
-			
-			spec.texture = g_texturesource->getTexture(new_id);
-		}
-	}
-	
-	return spec;
-}
-
-u8 getNodeContent(v3s16 p, MapNode mn, NodeModMap &temp_mods)
-{
-	/*
-		Check temporary modifications on this node
-	*/
-	/*core::map<v3s16, NodeMod>::Node *n;
-	n = m_temp_mods.find(p);
-	// If modified
-	if(n != NULL)
-	{
-		struct NodeMod mod = n->getValue();*/
-	NodeMod mod;
-	if(temp_mods.get(p, &mod))
-	{
-		if(mod.type == NODEMOD_CHANGECONTENT)
-		{
-			// Overrides content
-			return mod.param;
-		}
-		if(mod.type == NODEMOD_CRACK)
-		{
-			/*
-				Content doesn't change.
-				
-				face_contents works just like it should, because
-				there should not be faces between differently cracked
-				nodes.
-
-				If a semi-transparent node is cracked in front an
-				another one, it really doesn't matter whether there
-				is a cracked face drawn in between or not.
-			*/
-		}
-	}
-
-	return mn.d;
-}
-
-v3s16 dirs8[8] = {
-	v3s16(0,0,0),
-	v3s16(0,0,1),
-	v3s16(0,1,0),
-	v3s16(0,1,1),
-	v3s16(1,0,0),
-	v3s16(1,1,0),
-	v3s16(1,0,1),
-	v3s16(1,1,1),
-};
-
-// Calculate lighting at the XYZ- corner of p
-u8 getSmoothLight(v3s16 p, VoxelManipulator &vmanip, u32 daynight_ratio)
-{
-	u16 ambient_occlusion = 0;
-	u16 light = 0;
-	u16 light_count = 0;
-	for(u32 i=0; i<8; i++)
-	{
-		MapNode n = vmanip.getNodeNoEx(p - dirs8[i]);
-		if(content_features(n.d).param_type == CPT_LIGHT)
-		{
-			light += decode_light(n.getLightBlend(daynight_ratio));
-			light_count++;
-		}
-		else
-		{
-			if(n.d != CONTENT_IGNORE)
-				ambient_occlusion++;
-		}
-	}
-
-	if(light_count == 0)
-		return 255;
-	
-	light /= light_count;
-
-	if(ambient_occlusion > 4)
-	{
-		ambient_occlusion -= 4;
-		light = (float)light / ((float)ambient_occlusion * 0.5 + 1.0);
-	}
-
-	return light;
-}
-
-// Calculate lighting at the given corner of p
-u8 getSmoothLight(v3s16 p, v3s16 corner,
-		VoxelManipulator &vmanip, u32 daynight_ratio)
-{
-	if(corner.X == 1) p.X += 1;
-	else              assert(corner.X == -1);
-	if(corner.Y == 1) p.Y += 1;
-	else              assert(corner.Y == -1);
-	if(corner.Z == 1) p.Z += 1;
-	else              assert(corner.Z == -1);
-	
-	return getSmoothLight(p, vmanip, daynight_ratio);
-}
-
-void getTileInfo(
-		// Input:
-		v3s16 blockpos_nodes,
-		v3s16 p,
-		v3s16 face_dir,
-		u32 daynight_ratio,
-		VoxelManipulator &vmanip,
-		NodeModMap &temp_mods,
-		bool smooth_lighting,
-		// Output:
-		bool &makes_face,
-		v3s16 &p_corrected,
-		v3s16 &face_dir_corrected,
-		u8 *lights,
-		TileSpec &tile
-	)
-{
-	MapNode n0 = vmanip.getNodeNoEx(blockpos_nodes + p);
-	MapNode n1 = vmanip.getNodeNoEx(blockpos_nodes + p + face_dir);
-	TileSpec tile0 = getNodeTile(n0, p, face_dir, temp_mods);
-	TileSpec tile1 = getNodeTile(n1, p + face_dir, -face_dir, temp_mods);
-	
-	// This is hackish
-	u8 content0 = getNodeContent(p, n0, temp_mods);
-	u8 content1 = getNodeContent(p + face_dir, n1, temp_mods);
-	u8 mf = face_contents(content0, content1);
-
-	if(mf == 0)
-	{
-		makes_face = false;
-		return;
-	}
-
-	makes_face = true;
-	
-	if(mf == 1)
-	{
-		tile = tile0;
-		p_corrected = p;
-		face_dir_corrected = face_dir;
-	}
-	else
-	{
-		tile = tile1;
-		p_corrected = p + face_dir;
-		face_dir_corrected = -face_dir;
-	}
-	
-	if(smooth_lighting == false)
-	{
-		lights[0] = lights[1] = lights[2] = lights[3] =
-				decode_light(getFaceLight(daynight_ratio, n0, n1, face_dir));
-	}
-	else
-	{
-		v3s16 vertex_dirs[4];
-		getNodeVertexDirs(face_dir_corrected, vertex_dirs);
-		for(u16 i=0; i<4; i++)
-		{
-			lights[i] = getSmoothLight(blockpos_nodes + p_corrected,
-					vertex_dirs[i], vmanip, daynight_ratio);
-		}
-	}
-	
-	return;
-}
-
-/*
-	startpos:
-	translate_dir: unit vector with only one of x, y or z
-	face_dir: unit vector with only one of x, y or z
-*/
-void updateFastFaceRow(
-		u32 daynight_ratio,
-		v3f posRelative_f,
-		v3s16 startpos,
-		u16 length,
-		v3s16 translate_dir,
-		v3f translate_dir_f,
-		v3s16 face_dir,
-		v3f face_dir_f,
-		core::array<FastFace> &dest,
-		NodeModMap &temp_mods,
-		VoxelManipulator &vmanip,
-		v3s16 blockpos_nodes,
-		bool smooth_lighting)
-{
-	v3s16 p = startpos;
-	
-	u16 continuous_tiles_count = 0;
-	
-	bool makes_face;
-	v3s16 p_corrected;
-	v3s16 face_dir_corrected;
-	u8 lights[4];
-	TileSpec tile;
-	getTileInfo(blockpos_nodes, p, face_dir, daynight_ratio,
-			vmanip, temp_mods, smooth_lighting,
-			makes_face, p_corrected, face_dir_corrected, lights, tile);
-
-	for(u16 j=0; j<length; j++)
-	{
-		// If tiling can be done, this is set to false in the next step
-		bool next_is_different = true;
-		
-		v3s16 p_next;
-		
-		bool next_makes_face = false;
-		v3s16 next_p_corrected;
-		v3s16 next_face_dir_corrected;
-		u8 next_lights[4] = {0,0,0,0};
-		TileSpec next_tile;
-		
-		// If at last position, there is nothing to compare to and
-		// the face must be drawn anyway
-		if(j != length - 1)
-		{
-			p_next = p + translate_dir;
-			
-			getTileInfo(blockpos_nodes, p_next, face_dir, daynight_ratio,
-					vmanip, temp_mods, smooth_lighting,
-					next_makes_face, next_p_corrected,
-					next_face_dir_corrected, next_lights,
-					next_tile);
-			
-			if(next_makes_face == makes_face
-					&& next_p_corrected == p_corrected
-					&& next_face_dir_corrected == face_dir_corrected
-					&& next_lights[0] == lights[0]
-					&& next_lights[1] == lights[1]
-					&& next_lights[2] == lights[2]
-					&& next_lights[3] == lights[3]
-					&& next_tile == tile)
-			{
-				next_is_different = false;
-			}
-		}
-
-		continuous_tiles_count++;
-		
-		// This is set to true if the texture doesn't allow more tiling
-		bool end_of_texture = false;
-		/*
-			If there is no texture, it can be tiled infinitely.
-			If tiled==0, it means the texture can be tiled infinitely.
-			Otherwise check tiled agains continuous_tiles_count.
-		*/
-		if(tile.texture.atlas != NULL && tile.texture.tiled != 0)
-		{
-			if(tile.texture.tiled <= continuous_tiles_count)
-				end_of_texture = true;
-		}
-		
-		// Do this to disable tiling textures
-		//end_of_texture = true; //DEBUG
-		
-		if(next_is_different || end_of_texture)
-		{
-			/*
-				Create a face if there should be one
-			*/
-			if(makes_face)
-			{
-				// Floating point conversion of the position vector
-				v3f pf(p_corrected.X, p_corrected.Y, p_corrected.Z);
-				// Center point of face (kind of)
-				v3f sp = pf - ((f32)continuous_tiles_count / 2. - 0.5) * translate_dir_f;
-				v3f scale(1,1,1);
-
-				if(translate_dir.X != 0)
-				{
-					scale.X = continuous_tiles_count;
-				}
-				if(translate_dir.Y != 0)
-				{
-					scale.Y = continuous_tiles_count;
-				}
-				if(translate_dir.Z != 0)
-				{
-					scale.Z = continuous_tiles_count;
-				}
-				
-				makeFastFace(tile, lights[0], lights[1], lights[2], lights[3],
-						sp, face_dir_corrected, scale,
-						posRelative_f, dest);
-			}
-
-			continuous_tiles_count = 0;
-			
-			makes_face = next_makes_face;
-			p_corrected = next_p_corrected;
-			face_dir_corrected = next_face_dir_corrected;
-			lights[0] = next_lights[0];
-			lights[1] = next_lights[1];
-			lights[2] = next_lights[2];
-			lights[3] = next_lights[3];
-			tile = next_tile;
-		}
-		
-		p = p_next;
-	}
-}
-
-/*
-	This is used because CMeshBuffer::append() is very slow
-*/
-struct PreMeshBuffer
-{
-	video::SMaterial material;
-	core::array<u16> indices;
-	core::array<video::S3DVertex> vertices;
-};
-
-class MeshCollector
-{
-public:
-	void append(
-			video::SMaterial material,
-			const video::S3DVertex* const vertices,
-			u32 numVertices,
-			const u16* const indices,
-			u32 numIndices
-		)
-	{
-		PreMeshBuffer *p = NULL;
-		for(u32 i=0; i<m_prebuffers.size(); i++)
-		{
-			PreMeshBuffer &pp = m_prebuffers[i];
-			if(pp.material != material)
-				continue;
-
-			p = &pp;
-			break;
-		}
-
-		if(p == NULL)
-		{
-			PreMeshBuffer pp;
-			pp.material = material;
-			m_prebuffers.push_back(pp);
-			p = &m_prebuffers[m_prebuffers.size()-1];
-		}
-
-		u32 vertex_count = p->vertices.size();
-		for(u32 i=0; i<numIndices; i++)
-		{
-			u32 j = indices[i] + vertex_count;
-			if(j > 65535)
-			{
-				dstream<<"FIXME: Meshbuffer ran out of indices"<<std::endl;
-				// NOTE: Fix is to just add an another MeshBuffer
-			}
-			p->indices.push_back(j);
-		}
-		for(u32 i=0; i<numVertices; i++)
-		{
-			p->vertices.push_back(vertices[i]);
-		}
-	}
-
-	void fillMesh(scene::SMesh *mesh)
-	{
-		/*dstream<<"Filling mesh with "<<m_prebuffers.size()
-				<<" meshbuffers"<<std::endl;*/
-		for(u32 i=0; i<m_prebuffers.size(); i++)
-		{
-			PreMeshBuffer &p = m_prebuffers[i];
-
-			/*dstream<<"p.vertices.size()="<<p.vertices.size()
-					<<", p.indices.size()="<<p.indices.size()
-					<<std::endl;*/
-			
-			// Create meshbuffer
-			
-			// This is a "Standard MeshBuffer",
-			// it's a typedeffed CMeshBuffer<video::S3DVertex>
-			scene::SMeshBuffer *buf = new scene::SMeshBuffer();
-			// Set material
-			buf->Material = p.material;
-			//((scene::SMeshBuffer*)buf)->Material = p.material;
-			// Use VBO
-			//buf->setHardwareMappingHint(scene::EHM_STATIC);
-			// Add to mesh
-			mesh->addMeshBuffer(buf);
-			// Mesh grabbed it
-			buf->drop();
-
-			buf->append(p.vertices.pointer(), p.vertices.size(),
-					p.indices.pointer(), p.indices.size());
-		}
-	}
-
-private:
-	core::array<PreMeshBuffer> m_prebuffers;
-};
-
-// Create a cuboid.
-//  material  - the material to use (for all 6 faces)
-//  collector - the MeshCollector for the resulting polygons
-//  pa        - texture atlas pointer for the material
-//  c         - vertex colour - used for all
-//  pos       - the position of the centre of the cuboid
-//  rz,ry,rz  - the radius of the cuboid in each dimension
-//  txc       - texture coordinates - this is a list of texture coordinates
-//              for the opposite corners of each face - therefore, there
-//              should be (2+2)*6=24 values in the list. Alternatively, pass
-//              NULL to use the entire texture for each face. The order of
-//              the faces in the list is top-backi-right-front-left-bottom
-//              If you specified 0,0,1,1 for each face, that would be the
-//              same as passing NULL.
-void makeCuboid(video::SMaterial &material, MeshCollector *collector,
-	AtlasPointer* pa, video::SColor &c,
-	v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
-{
-	f32 tu0=pa->x0();
-	f32 tu1=pa->x1();
-	f32 tv0=pa->y0();
-	f32 tv1=pa->y1();
-	f32 txus=tu1-tu0;
-	f32 txvs=tv1-tv0;
-
-	video::S3DVertex v[4] =
-	{
-		video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
-		video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
-		video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
-		video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
-	};
-
-	for(int i=0;i<6;i++)
-	{
-		switch(i)
-		{
-			case 0:	// top
-				v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
-				v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
-				v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
-				v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
-				break;
-			case 1: // back
-				v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
-				v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
-				v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
-				v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
-				break;
-			case 2: //right
-				v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
-				v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
-				v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
-				v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
-				break;
-			case 3: // front
-				v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
-				v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
-				v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
-				v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
-				break;
-			case 4: // left
-				v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
-				v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
-				v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
-				v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
-				break;
-			case 5: // bottom
-				v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
-				v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
-				v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
-				v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
-				break;
-		}
-
-		if(txc!=NULL)
-		{
-			v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
-			v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
-			v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
-			v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
-			txc+=4;
-		}
-
-		for(u16 i=0; i<4; i++)
-			v[i].Pos += pos;
-		u16 indices[] = {0,1,2,2,3,0};
-		collector->append(material, v, 4, indices, 6);
-
-	}
-
-}
-
-scene::SMesh* makeMapBlockMesh(MeshMakeData *data)
-{
-	// 4-21ms for MAP_BLOCKSIZE=16
-	// 24-155ms for MAP_BLOCKSIZE=32
-	//TimeTaker timer1("makeMapBlockMesh()");
-
-	core::array<FastFace> fastfaces_new;
-
-	v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
-	
-	// floating point conversion
-	v3f posRelative_f(blockpos_nodes.X, blockpos_nodes.Y, blockpos_nodes.Z);
-	
-	/*
-		Some settings
-	*/
-	bool new_style_water = g_settings.getBool("new_style_water");
-	bool new_style_leaves = g_settings.getBool("new_style_leaves");
-	bool smooth_lighting = g_settings.getBool("smooth_lighting");
-	
-	float node_water_level = 1.0;
-	if(new_style_water)
-		node_water_level = 0.85;
-	
-	/*
-		We are including the faces of the trailing edges of the block.
-		This means that when something changes, the caller must
-		also update the meshes of the blocks at the leading edges.
-
-		NOTE: This is the slowest part of this method.
-	*/
-	
-	{
-		// 4-23ms for MAP_BLOCKSIZE=16
-		//TimeTaker timer2("updateMesh() collect");
-
-		/*
-			Go through every y,z and get top(y+) faces in rows of x+
-		*/
-		for(s16 y=0; y<MAP_BLOCKSIZE; y++){
-			for(s16 z=0; z<MAP_BLOCKSIZE; z++){
-				updateFastFaceRow(data->m_daynight_ratio, posRelative_f,
-						v3s16(0,y,z), MAP_BLOCKSIZE,
-						v3s16(1,0,0), //dir
-						v3f  (1,0,0),
-						v3s16(0,1,0), //face dir
-						v3f  (0,1,0),
-						fastfaces_new,
-						data->m_temp_mods,
-						data->m_vmanip,
-						blockpos_nodes,
-						smooth_lighting);
-			}
-		}
-		/*
-			Go through every x,y and get right(x+) faces in rows of z+
-		*/
-		for(s16 x=0; x<MAP_BLOCKSIZE; x++){
-			for(s16 y=0; y<MAP_BLOCKSIZE; y++){
-				updateFastFaceRow(data->m_daynight_ratio, posRelative_f,
-						v3s16(x,y,0), MAP_BLOCKSIZE,
-						v3s16(0,0,1),
-						v3f  (0,0,1),
-						v3s16(1,0,0),
-						v3f  (1,0,0),
-						fastfaces_new,
-						data->m_temp_mods,
-						data->m_vmanip,
-						blockpos_nodes,
-						smooth_lighting);
-			}
-		}
-		/*
-			Go through every y,z and get back(z+) faces in rows of x+
-		*/
-		for(s16 z=0; z<MAP_BLOCKSIZE; z++){
-			for(s16 y=0; y<MAP_BLOCKSIZE; y++){
-				updateFastFaceRow(data->m_daynight_ratio, posRelative_f,
-						v3s16(0,y,z), MAP_BLOCKSIZE,
-						v3s16(1,0,0),
-						v3f  (1,0,0),
-						v3s16(0,0,1),
-						v3f  (0,0,1),
-						fastfaces_new,
-						data->m_temp_mods,
-						data->m_vmanip,
-						blockpos_nodes,
-						smooth_lighting);
-			}
-		}
-	}
-
-	// End of slow part
-
-	/*
-		Convert FastFaces to SMesh
-	*/
-
-	MeshCollector collector;
-
-	if(fastfaces_new.size() > 0)
-	{
-		// avg 0ms (100ms spikes when loading textures the first time)
-		//TimeTaker timer2("updateMesh() mesh building");
-
-		video::SMaterial material;
-		material.setFlag(video::EMF_LIGHTING, false);
-		material.setFlag(video::EMF_BILINEAR_FILTER, false);
-		material.setFlag(video::EMF_FOG_ENABLE, true);
-		//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_OFF);
-		//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_SIMPLE);
-
-		for(u32 i=0; i<fastfaces_new.size(); i++)
-		{
-			FastFace &f = fastfaces_new[i];
-
-			const u16 indices[] = {0,1,2,2,3,0};
-			const u16 indices_alternate[] = {0,1,3,2,3,1};
-			
-			video::ITexture *texture = f.tile.texture.atlas;
-			if(texture == NULL)
-				continue;
-
-			material.setTexture(0, texture);
-			
-			f.tile.applyMaterialOptions(material);
-
-			const u16 *indices_p = indices;
-			
-			/*
-				Revert triangles for nicer looking gradient if vertices
-				1 and 3 have same color or 0 and 2 have different color.
-			*/
-			if(f.vertices[0].Color != f.vertices[2].Color
-					|| f.vertices[1].Color == f.vertices[3].Color)
-				indices_p = indices_alternate;
-			
-			collector.append(material, f.vertices, 4, indices_p, 6);
-		}
-	}
-
-	/*
-		Add special graphics:
-		- torches
-		- flowing water
-	*/
-
-	// 0ms
-	//TimeTaker timer2("updateMesh() adding special stuff");
-
-	// Flowing water material
-	video::SMaterial material_water1;
-	material_water1.setFlag(video::EMF_LIGHTING, false);
-	material_water1.setFlag(video::EMF_BACK_FACE_CULLING, false);
-	material_water1.setFlag(video::EMF_BILINEAR_FILTER, false);
-	material_water1.setFlag(video::EMF_FOG_ENABLE, true);
-	material_water1.MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
-	AtlasPointer pa_water1 = g_texturesource->getTexture(
-			g_texturesource->getTextureId("water.png"));
-	material_water1.setTexture(0, pa_water1.atlas);
-
-	// New-style leaves material
-	video::SMaterial material_leaves1;
-	material_leaves1.setFlag(video::EMF_LIGHTING, false);
-	//material_leaves1.setFlag(video::EMF_BACK_FACE_CULLING, false);
-	material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
-	material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
-	material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
-	AtlasPointer pa_leaves1 = g_texturesource->getTexture(
-			g_texturesource->getTextureId("leaves.png"));
-	material_leaves1.setTexture(0, pa_leaves1.atlas);
-
-	// Glass material
-	video::SMaterial material_glass;
-	material_glass.setFlag(video::EMF_LIGHTING, false);
-	material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
-	material_glass.setFlag(video::EMF_FOG_ENABLE, true);
-	material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
-	AtlasPointer pa_glass = g_texturesource->getTexture(
-			g_texturesource->getTextureId("glass.png"));
-	material_glass.setTexture(0, pa_glass.atlas);
-
-	// Wood material
-	video::SMaterial material_wood;
-	material_wood.setFlag(video::EMF_LIGHTING, false);
-	material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
-	material_wood.setFlag(video::EMF_FOG_ENABLE, true);
-	material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
-	AtlasPointer pa_wood = g_texturesource->getTexture(
-			g_texturesource->getTextureId("wood.png"));
-	material_wood.setTexture(0, pa_wood.atlas);
-
-	for(s16 z=0; z<MAP_BLOCKSIZE; z++)
-	for(s16 y=0; y<MAP_BLOCKSIZE; y++)
-	for(s16 x=0; x<MAP_BLOCKSIZE; x++)
-	{
-		v3s16 p(x,y,z);
-
-		MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
-		
-		/*
-			Add torches to mesh
-		*/
-		if(n.d == CONTENT_TORCH)
-		{
-			video::SColor c(255,255,255,255);
-
-			// Wall at X+ of node
-			video::S3DVertex vertices[4] =
-			{
-				video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
-				video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
-				video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
-				video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
-			};
-
-			v3s16 dir = unpackDir(n.dir);
-
-			for(s32 i=0; i<4; i++)
-			{
-				if(dir == v3s16(1,0,0))
-					vertices[i].Pos.rotateXZBy(0);
-				if(dir == v3s16(-1,0,0))
-					vertices[i].Pos.rotateXZBy(180);
-				if(dir == v3s16(0,0,1))
-					vertices[i].Pos.rotateXZBy(90);
-				if(dir == v3s16(0,0,-1))
-					vertices[i].Pos.rotateXZBy(-90);
-				if(dir == v3s16(0,-1,0))
-					vertices[i].Pos.rotateXZBy(45);
-				if(dir == v3s16(0,1,0))
-					vertices[i].Pos.rotateXZBy(-45);
-
-				vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
-			}
-
-			// Set material
-			video::SMaterial material;
-			material.setFlag(video::EMF_LIGHTING, false);
-			material.setFlag(video::EMF_BACK_FACE_CULLING, false);
-			material.setFlag(video::EMF_BILINEAR_FILTER, false);
-			//material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
-			material.MaterialType
-					= video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
-
-			if(dir == v3s16(0,-1,0))
-				material.setTexture(0,
-						g_texturesource->getTextureRaw("torch_on_floor.png"));
-			else if(dir == v3s16(0,1,0))
-				material.setTexture(0,
-						g_texturesource->getTextureRaw("torch_on_ceiling.png"));
-			// For backwards compatibility
-			else if(dir == v3s16(0,0,0))
-				material.setTexture(0,
-						g_texturesource->getTextureRaw("torch_on_floor.png"));
-			else
-				material.setTexture(0, 
-						g_texturesource->getTextureRaw("torch.png"));
-
-			u16 indices[] = {0,1,2,2,3,0};
-			// Add to mesh collector
-			collector.append(material, vertices, 4, indices, 6);
-		}
-		/*
-			Signs on walls
-		*/
-		if(n.d == CONTENT_SIGN_WALL)
-		{
-			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
-			video::SColor c(255,l,l,l);
-				
-			float d = (float)BS/16;
-			// Wall at X+ of node
-			video::S3DVertex vertices[4] =
-			{
-				video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
-				video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
-				video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
-				video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
-			};
-
-			v3s16 dir = unpackDir(n.dir);
-
-			for(s32 i=0; i<4; i++)
-			{
-				if(dir == v3s16(1,0,0))
-					vertices[i].Pos.rotateXZBy(0);
-				if(dir == v3s16(-1,0,0))
-					vertices[i].Pos.rotateXZBy(180);
-				if(dir == v3s16(0,0,1))
-					vertices[i].Pos.rotateXZBy(90);
-				if(dir == v3s16(0,0,-1))
-					vertices[i].Pos.rotateXZBy(-90);
-				if(dir == v3s16(0,-1,0))
-					vertices[i].Pos.rotateXYBy(-90);
-				if(dir == v3s16(0,1,0))
-					vertices[i].Pos.rotateXYBy(90);
-
-				vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
-			}
-
-			// Set material
-			video::SMaterial material;
-			material.setFlag(video::EMF_LIGHTING, false);
-			material.setFlag(video::EMF_BACK_FACE_CULLING, false);
-			material.setFlag(video::EMF_BILINEAR_FILTER, false);
-			material.setFlag(video::EMF_FOG_ENABLE, true);
-			//material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
-			material.MaterialType
-					= video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
-
-			material.setTexture(0, 
-					g_texturesource->getTextureRaw("sign_wall.png"));
-
-			u16 indices[] = {0,1,2,2,3,0};
-			// Add to mesh collector
-			collector.append(material, vertices, 4, indices, 6);
-		}
-		/*
-			Add flowing water to mesh
-		*/
-		else if(n.d == CONTENT_WATER)
-		{
-			bool top_is_water = false;
-			MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
-			if(ntop.d == CONTENT_WATER || ntop.d == CONTENT_WATERSOURCE)
-				top_is_water = true;
-			
-			u8 l = 0;
-			// Use the light of the node on top if possible
-			if(content_features(ntop.d).param_type == CPT_LIGHT)
-				l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
-			// Otherwise use the light of this node (the water)
-			else
-				l = decode_light(n.getLightBlend(data->m_daynight_ratio));
-			video::SColor c(WATER_ALPHA,l,l,l);
-			
-			// Neighbor water levels (key = relative position)
-			// Includes current node
-			core::map<v3s16, f32> neighbor_levels;
-			core::map<v3s16, u8> neighbor_contents;
-			core::map<v3s16, u8> neighbor_flags;
-			const u8 neighborflag_top_is_water = 0x01;
-			v3s16 neighbor_dirs[9] = {
-				v3s16(0,0,0),
-				v3s16(0,0,1),
-				v3s16(0,0,-1),
-				v3s16(1,0,0),
-				v3s16(-1,0,0),
-				v3s16(1,0,1),
-				v3s16(-1,0,-1),
-				v3s16(1,0,-1),
-				v3s16(-1,0,1),
-			};
-			for(u32 i=0; i<9; i++)
-			{
-				u8 content = CONTENT_AIR;
-				float level = -0.5 * BS;
-				u8 flags = 0;
-				// Check neighbor
-				v3s16 p2 = p + neighbor_dirs[i];
-				MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
-				if(n2.d != CONTENT_IGNORE)
-				{
-					content = n2.d;
-
-					if(n2.d == CONTENT_WATERSOURCE)
-						level = (-0.5+node_water_level) * BS;
-					else if(n2.d == CONTENT_WATER)
-						level = (-0.5 + ((float)n2.param2 + 0.5) / 8.0
-								* node_water_level) * BS;
-
-					// Check node above neighbor.
-					// NOTE: This doesn't get executed if neighbor
-					//       doesn't exist
-					p2.Y += 1;
-					n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
-					if(n2.d == CONTENT_WATERSOURCE || n2.d == CONTENT_WATER)
-						flags |= neighborflag_top_is_water;
-				}
-				
-				neighbor_levels.insert(neighbor_dirs[i], level);
-				neighbor_contents.insert(neighbor_dirs[i], content);
-				neighbor_flags.insert(neighbor_dirs[i], flags);
-			}
-
-			//float water_level = (-0.5 + ((float)n.param2 + 0.5) / 8.0) * BS;
-			//float water_level = neighbor_levels[v3s16(0,0,0)];
-
-			// Corner heights (average between four waters)
-			f32 corner_levels[4];
-			
-			v3s16 halfdirs[4] = {
-				v3s16(0,0,0),
-				v3s16(1,0,0),
-				v3s16(1,0,1),
-				v3s16(0,0,1),
-			};
-			for(u32 i=0; i<4; i++)
-			{
-				v3s16 cornerdir = halfdirs[i];
-				float cornerlevel = 0;
-				u32 valid_count = 0;
-				for(u32 j=0; j<4; j++)
-				{
-					v3s16 neighbordir = cornerdir - halfdirs[j];
-					u8 content = neighbor_contents[neighbordir];
-					// Special case for source nodes
-					if(content == CONTENT_WATERSOURCE)
-					{
-						cornerlevel = (-0.5+node_water_level)*BS;
-						valid_count = 1;
-						break;
-					}
-					else if(content == CONTENT_WATER)
-					{
-						cornerlevel += neighbor_levels[neighbordir];
-						valid_count++;
-					}
-					else if(content == CONTENT_AIR)
-					{
-						cornerlevel += -0.5*BS;
-						valid_count++;
-					}
-				}
-				if(valid_count > 0)
-					cornerlevel /= valid_count;
-				corner_levels[i] = cornerlevel;
-			}
-
-			/*
-				Generate sides
-			*/
-
-			v3s16 side_dirs[4] = {
-				v3s16(1,0,0),
-				v3s16(-1,0,0),
-				v3s16(0,0,1),
-				v3s16(0,0,-1),
-			};
-			s16 side_corners[4][2] = {
-				{1, 2},
-				{3, 0},
-				{2, 3},
-				{0, 1},
-			};
-			for(u32 i=0; i<4; i++)
-			{
-				v3s16 dir = side_dirs[i];
-
-				/*
-					If our topside is water and neighbor's topside
-					is water, don't draw side face
-				*/
-				if(top_is_water &&
-						neighbor_flags[dir] & neighborflag_top_is_water)
-					continue;
-
-				u8 neighbor_content = neighbor_contents[dir];
-				
-				// Don't draw face if neighbor is not air or water
-				if(neighbor_content != CONTENT_AIR
-						&& neighbor_content != CONTENT_WATER)
-					continue;
-				
-				bool neighbor_is_water = (neighbor_content == CONTENT_WATER);
-				
-				// Don't draw any faces if neighbor is water and top is water
-				if(neighbor_is_water == true && top_is_water == false)
-					continue;
-				
-				video::S3DVertex vertices[4] =
-				{
-					/*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
-					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
-					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
-					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
-					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
-							pa_water1.x0(), pa_water1.y1()),
-					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
-							pa_water1.x1(), pa_water1.y1()),
-					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
-							pa_water1.x1(), pa_water1.y0()),
-					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
-							pa_water1.x0(), pa_water1.y0()),
-				};
-				
-				/*
-					If our topside is water, set upper border of face
-					at upper border of node
-				*/
-				if(top_is_water)
-				{
-					vertices[2].Pos.Y = 0.5*BS;
-					vertices[3].Pos.Y = 0.5*BS;
-				}
-				/*
-					Otherwise upper position of face is corner levels
-				*/
-				else
-				{
-					vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
-					vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
-				}
-				
-				/*
-					If neighbor is water, lower border of face is corner
-					water levels
-				*/
-				if(neighbor_is_water)
-				{
-					vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
-					vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
-				}
-				/*
-					If neighbor is not water, lower border of face is
-					lower border of node
-				*/
-				else
-				{
-					vertices[0].Pos.Y = -0.5*BS;
-					vertices[1].Pos.Y = -0.5*BS;
-				}
-				
-				for(s32 j=0; j<4; j++)
-				{
-					if(dir == v3s16(0,0,1))
-						vertices[j].Pos.rotateXZBy(0);
-					if(dir == v3s16(0,0,-1))
-						vertices[j].Pos.rotateXZBy(180);
-					if(dir == v3s16(-1,0,0))
-						vertices[j].Pos.rotateXZBy(90);
-					if(dir == v3s16(1,0,-0))
-						vertices[j].Pos.rotateXZBy(-90);
-
-					vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
-				}
-
-				u16 indices[] = {0,1,2,2,3,0};
-				// Add to mesh collector
-				collector.append(material_water1, vertices, 4, indices, 6);
-			}
-			
-			/*
-				Generate top side, if appropriate
-			*/
-			
-			if(top_is_water == false)
-			{
-				video::S3DVertex vertices[4] =
-				{
-					/*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
-					video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
-					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
-					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
-					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
-							pa_water1.x0(), pa_water1.y1()),
-					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
-							pa_water1.x1(), pa_water1.y1()),
-					video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
-							pa_water1.x1(), pa_water1.y0()),
-					video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
-							pa_water1.x0(), pa_water1.y0()),
-				};
-				
-				// This fixes a strange bug
-				s32 corner_resolve[4] = {3,2,1,0};
-
-				for(s32 i=0; i<4; i++)
-				{
-					//vertices[i].Pos.Y += water_level;
-					//vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
-					s32 j = corner_resolve[i];
-					vertices[i].Pos.Y += corner_levels[j];
-					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
-				}
-
-				u16 indices[] = {0,1,2,2,3,0};
-				// Add to mesh collector
-				collector.append(material_water1, vertices, 4, indices, 6);
-			}
-		}
-		/*
-			Add water sources to mesh if using new style
-		*/
-		else if(n.d == CONTENT_WATERSOURCE && new_style_water)
-		{
-			//bool top_is_water = false;
-			bool top_is_air = false;
-			MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
-			/*if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
-				top_is_water = true;*/
-			if(n.d == CONTENT_AIR)
-				top_is_air = true;
-			
-			/*if(top_is_water == true)
-				continue;*/
-			if(top_is_air == false)
-				continue;
-
-			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
-			video::SColor c(WATER_ALPHA,l,l,l);
-			
-			video::S3DVertex vertices[4] =
-			{
-				/*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
-				video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
-				video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
-				video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
-				video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
-						pa_water1.x0(), pa_water1.y1()),
-				video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
-						pa_water1.x1(), pa_water1.y1()),
-				video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
-						pa_water1.x1(), pa_water1.y0()),
-				video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
-						pa_water1.x0(), pa_water1.y0()),
-			};
-
-			for(s32 i=0; i<4; i++)
-			{
-				vertices[i].Pos.Y += (-0.5+node_water_level)*BS;
-				vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
-			}
-
-			u16 indices[] = {0,1,2,2,3,0};
-			// Add to mesh collector
-			collector.append(material_water1, vertices, 4, indices, 6);
-		}
-		/*
-			Add leaves if using new style
-		*/
-		else if(n.d == CONTENT_LEAVES && new_style_leaves)
-		{
-			/*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
-			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
-			video::SColor c(255,l,l,l);
-
-			for(u32 j=0; j<6; j++)
-			{
-				video::S3DVertex vertices[4] =
-				{
-					/*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
-					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
-					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
-					video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
-					video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
-						pa_leaves1.x0(), pa_leaves1.y1()),
-					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
-						pa_leaves1.x1(), pa_leaves1.y1()),
-					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
-						pa_leaves1.x1(), pa_leaves1.y0()),
-					video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
-						pa_leaves1.x0(), pa_leaves1.y0()),
-				};
-
-				if(j == 0)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(0);
-				}
-				else if(j == 1)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(180);
-				}
-				else if(j == 2)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(-90);
-				}
-				else if(j == 3)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(90);
-				}
-				else if(j == 4)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateYZBy(-90);
-				}
-				else if(j == 5)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateYZBy(90);
-				}
-
-				for(u16 i=0; i<4; i++)
-				{
-					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
-				}
-
-				u16 indices[] = {0,1,2,2,3,0};
-				// Add to mesh collector
-				collector.append(material_leaves1, vertices, 4, indices, 6);
-			}
-		}
-		/*
-			Add glass
-		*/
-		else if(n.d == CONTENT_GLASS)
-		{
-			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
-			video::SColor c(255,l,l,l);
-
-			for(u32 j=0; j<6; j++)
-			{
-				video::S3DVertex vertices[4] =
-				{
-					video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
-						pa_glass.x0(), pa_glass.y1()),
-					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
-						pa_glass.x1(), pa_glass.y1()),
-					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
-						pa_glass.x1(), pa_glass.y0()),
-					video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
-						pa_glass.x0(), pa_glass.y0()),
-				};
-
-				if(j == 0)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(0);
-				}
-				else if(j == 1)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(180);
-				}
-				else if(j == 2)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(-90);
-				}
-				else if(j == 3)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateXZBy(90);
-				}
-				else if(j == 4)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateYZBy(-90);
-				}
-				else if(j == 5)
-				{
-					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateYZBy(90);
-				}
-
-				for(u16 i=0; i<4; i++)
-				{
-					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
-				}
-
-				u16 indices[] = {0,1,2,2,3,0};
-				// Add to mesh collector
-				collector.append(material_glass, vertices, 4, indices, 6);
-			}
-		}
-		/*
-			Add fence
-		*/
-		else if(n.d == CONTENT_FENCE)
-		{
-			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
-			video::SColor c(255,l,l,l);
-
-			const f32 post_rad=(f32)BS/10;
-			const f32 bar_rad=(f32)BS/20;
-			const f32 bar_len=(f32)(BS/2)-post_rad;
-
-			// The post - always present
-			v3f pos = intToFloat(p+blockpos_nodes, BS);
-			f32 postuv[24]={
-					0.4,0.4,0.6,0.6,
-					0.35,0,0.65,1,
-					0.35,0,0.65,1,
-					0.35,0,0.65,1,
-					0.35,0,0.65,1,
-					0.4,0.4,0.6,0.6};
-			makeCuboid(material_wood, &collector,
-				&pa_wood, c, pos,
-				post_rad,BS/2,post_rad, postuv);
-
-			// Now a section of fence, +X, if there's a post there
-			v3s16 p2 = p;
-			p2.X++;
-			MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
-			if(n2.d == CONTENT_FENCE)
-			{
-				pos = intToFloat(p+blockpos_nodes, BS);
-				pos.X += BS/2;
-				pos.Y += BS/4;
-				f32 xrailuv[24]={
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6};
-				makeCuboid(material_wood, &collector,
-					&pa_wood, c, pos,
-					bar_len,bar_rad,bar_rad, xrailuv);
-
-				pos.Y -= BS/2;
-				makeCuboid(material_wood, &collector,
-					&pa_wood, c, pos,
-					bar_len,bar_rad,bar_rad, xrailuv);
-			}
-
-			// Now a section of fence, +Z, if there's a post there
-			p2 = p;
-			p2.Z++;
-			n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
-			if(n2.d == CONTENT_FENCE)
-			{
-				pos = intToFloat(p+blockpos_nodes, BS);
-				pos.Z += BS/2;
-				pos.Y += BS/4;
-				f32 zrailuv[24]={
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6,
-					0,0.4,1,0.6};
-				makeCuboid(material_wood, &collector,
-					&pa_wood, c, pos,
-					bar_rad,bar_rad,bar_len, zrailuv);
-				pos.Y -= BS/2;
-				makeCuboid(material_wood, &collector,
-					&pa_wood, c, pos,
-					bar_rad,bar_rad,bar_len, zrailuv);
-
-			}
-
-		}
-
-
-
-	}
-
-	/*
-		Add stuff from collector to mesh
-	*/
-	
-	scene::SMesh *mesh_new = NULL;
-	mesh_new = new scene::SMesh();
-	
-	collector.fillMesh(mesh_new);
-
-	/*
-		Do some stuff to the mesh
-	*/
-
-	mesh_new->recalculateBoundingBox();
-
-	/*
-		Delete new mesh if it is empty
-	*/
-
-	if(mesh_new->getMeshBufferCount() == 0)
-	{
-		mesh_new->drop();
-		mesh_new = NULL;
-	}
-
-	if(mesh_new)
-	{
-#if 0
-		// Usually 1-700 faces and 1-7 materials
-		std::cout<<"Updated MapBlock has "<<fastfaces_new.size()<<" faces "
-				<<"and uses "<<mesh_new->getMeshBufferCount()
-				<<" materials (meshbuffers)"<<std::endl;
-#endif
-
-		// Use VBO for mesh (this just would set this for ever buffer)
-		// This will lead to infinite memory usage because or irrlicht.
-		//mesh_new->setHardwareMappingHint(scene::EHM_STATIC);
-
-		/*
-			NOTE: If that is enabled, some kind of a queue to the main
-			thread should be made which would call irrlicht to delete
-			the hardware buffer and then delete the mesh
-		*/
-	}
-
-	return mesh_new;
-	
-	//std::cout<<"added "<<fastfaces.getSize()<<" faces."<<std::endl;
-}
-
-#endif // !SERVER
-
 /*
 	MapBlock
 */
@@ -1914,16 +218,13 @@ void MapBlock::replaceMesh(scene::SMesh *mesh_new)
 
 	All sunlighted nodes are added to light_sources.
 
-	If grow_grass==true, turns sunglighted mud into grass.
-
 	if remove_light==true, sets non-sunlighted nodes black.
 
 	if black_air_left!=NULL, it is set to true if non-sunlighted
 	air is left in block.
 */
 bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
-		bool remove_light, bool *black_air_left,
-		bool grow_grass)
+		bool remove_light, bool *black_air_left)
 {
 	// Whether the sunlight at the top of the bottom block is valid
 	bool block_below_is_valid = true;
@@ -1958,7 +259,8 @@ bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
 				else
 				{
 					MapNode n = getNode(v3s16(x, MAP_BLOCKSIZE-1, z));
-					if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
+					//if(n.d == CONTENT_WATER || n.d == CONTENT_WATERSOURCE)
+					if(content_features(n.d).sunlight_propagates == false)
 					{
 						no_sunlight = true;
 					}
@@ -2013,6 +315,7 @@ bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
 				}
 				else if(n.light_propagates() == false)
 				{
+					/*// DEPRECATED TODO: REMOVE
 					if(grow_grass)
 					{
 						bool upper_is_air = false;
@@ -2030,7 +333,7 @@ bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
 						{
 							n.d = CONTENT_GRASS;
 						}
-					}
+					}*/
 
 					// A solid object is on the way.
 					stopped_to_solid_object = true;
diff --git a/src/mapblock.h b/src/mapblock.h
index 74666eb48..dd1d5e5aa 100644
--- a/src/mapblock.h
+++ b/src/mapblock.h
@@ -33,10 +33,15 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "voxel.h"
 #include "nodemetadata.h"
 #include "staticobject.h"
+#include "mapblock_nodemod.h"
+#ifndef SERVER
+	#include "mapblock_mesh.h"
+#endif
+
 
 #define BLOCK_TIMESTAMP_UNDEFINED 0xffffffff
 
-// Named by looking towards z+
+/*// Named by looking towards z+
 enum{
 	FACE_BACK=0,
 	FACE_TOP,
@@ -44,103 +49,7 @@ enum{
 	FACE_FRONT,
 	FACE_BOTTOM,
 	FACE_LEFT
-};
-
-struct FastFace
-{
-	TileSpec tile;
-	video::S3DVertex vertices[4]; // Precalculated vertices
-};
-
-enum NodeModType
-{
-	NODEMOD_NONE,
-	NODEMOD_CHANGECONTENT, //param is content id
-	NODEMOD_CRACK // param is crack progression
-};
-
-struct NodeMod
-{
-	NodeMod(enum NodeModType a_type=NODEMOD_NONE, u16 a_param=0)
-	{
-		type = a_type;
-		param = a_param;
-	}
-	bool operator==(const NodeMod &other)
-	{
-		return (type == other.type && param == other.param);
-	}
-	enum NodeModType type;
-	u16 param;
-};
-
-class NodeModMap
-{
-public:
-	/*
-		returns true if the mod was different last time
-	*/
-	bool set(v3s16 p, const NodeMod &mod)
-	{
-		// See if old is different, cancel if it is not different.
-		core::map<v3s16, NodeMod>::Node *n = m_mods.find(p);
-		if(n)
-		{
-			NodeMod old = n->getValue();
-			if(old == mod)
-				return false;
-
-			n->setValue(mod);
-		}
-		else
-		{
-			m_mods.insert(p, mod);
-		}
-		
-		return true;
-	}
-	// Returns true if there was one
-	bool get(v3s16 p, NodeMod *mod)
-	{
-		core::map<v3s16, NodeMod>::Node *n;
-		n = m_mods.find(p);
-		if(n == NULL)
-			return false;
-		if(mod)
-			*mod = n->getValue();
-		return true;
-	}
-	bool clear(v3s16 p)
-	{
-		if(m_mods.find(p))
-		{
-			m_mods.remove(p);
-			return true;
-		}
-		return false;
-	}
-	bool clear()
-	{
-		if(m_mods.size() == 0)
-			return false;
-		m_mods.clear();
-		return true;
-	}
-	void copy(NodeModMap &dest)
-	{
-		dest.m_mods.clear();
-
-		for(core::map<v3s16, NodeMod>::Iterator
-				i = m_mods.getIterator();
-				i.atEnd() == false; i++)
-		{
-			dest.m_mods.insert(i.getNode()->getKey(), i.getNode()->getValue());
-		}
-	}
-
-private:
-	core::map<v3s16, NodeMod> m_mods;
-};
+};*/
 
 enum
 {
@@ -171,35 +80,6 @@ public:
 };
 
 /*
-	Mesh making stuff
-*/
-
-class MapBlock;
-
-#ifndef SERVER
-
-struct MeshMakeData
-{
-	u32 m_daynight_ratio;
-	NodeModMap m_temp_mods;
-	VoxelManipulator m_vmanip;
-	v3s16 m_blockpos;
-	
-	/*
-		Copy central data directly from block, and other data from
-		parent of block.
-	*/
-	void fill(u32 daynight_ratio, MapBlock *block);
-};
-
-scene::SMesh* makeMapBlockMesh(MeshMakeData *data);
-
-#endif
-
-u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
-		v3s16 face_dir);
-
-/*
 	MapBlock itself
 */
 
@@ -474,8 +354,7 @@ public:
 	
 	// See comments in mapblock.cpp
 	bool propagateSunlight(core::map<v3s16, bool> & light_sources,
-			bool remove_light=false, bool *black_air_left=NULL,
-			bool grow_grass=false);
+			bool remove_light=false, bool *black_air_left=NULL);
 	
 	// Copies data to VoxelManipulator to getPosRelative()
 	void copyTo(VoxelManipulator &dst);
diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp
new file mode 100644
index 000000000..a8624e8f3
--- /dev/null
+++ b/src/mapblock_mesh.cpp
@@ -0,0 +1,789 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "mapblock_mesh.h"
+#include "light.h"
+#include "mapblock.h"
+#include "map.h"
+#include "main.h" // For g_settings and g_texturesource
+#include "content_mapblock.h"
+
+void MeshMakeData::fill(u32 daynight_ratio, MapBlock *block)
+{
+	m_daynight_ratio = daynight_ratio;
+	m_blockpos = block->getPos();
+
+	v3s16 blockpos_nodes = m_blockpos*MAP_BLOCKSIZE;
+	
+	/*
+		There is no harm not copying the TempMods of the neighbors
+		because they are already copied to this block
+	*/
+	m_temp_mods.clear();
+	block->copyTempMods(m_temp_mods);
+	
+	/*
+		Copy data
+	*/
+
+	// Allocate this block + neighbors
+	m_vmanip.clear();
+	m_vmanip.addArea(VoxelArea(blockpos_nodes-v3s16(1,1,1)*MAP_BLOCKSIZE,
+			blockpos_nodes+v3s16(1,1,1)*MAP_BLOCKSIZE*2-v3s16(1,1,1)));
+
+	{
+		//TimeTaker timer("copy central block data");
+		// 0ms
+
+		// Copy our data
+		block->copyTo(m_vmanip);
+	}
+	{
+		//TimeTaker timer("copy neighbor block data");
+		// 0ms
+
+		/*
+			Copy neighbors. This is lightning fast.
+			Copying only the borders would be *very* slow.
+		*/
+		
+		// Get map
+		NodeContainer *parentcontainer = block->getParent();
+		// This will only work if the parent is the map
+		assert(parentcontainer->nodeContainerId() == NODECONTAINER_ID_MAP);
+		// OK, we have the map!
+		Map *map = (Map*)parentcontainer;
+
+		for(u16 i=0; i<6; i++)
+		{
+			const v3s16 &dir = g_6dirs[i];
+			v3s16 bp = m_blockpos + dir;
+			MapBlock *b = map->getBlockNoCreateNoEx(bp);
+			if(b)
+				b->copyTo(m_vmanip);
+		}
+	}
+}
+
+/*
+	vertex_dirs: v3s16[4]
+*/
+void getNodeVertexDirs(v3s16 dir, v3s16 *vertex_dirs)
+{
+	/*
+		If looked from outside the node towards the face, the corners are:
+		0: bottom-right
+		1: bottom-left
+		2: top-left
+		3: top-right
+	*/
+	if(dir == v3s16(0,0,1))
+	{
+		// If looking towards z+, this is the face that is behind
+		// the center point, facing towards z+.
+		vertex_dirs[0] = v3s16(-1,-1, 1);
+		vertex_dirs[1] = v3s16( 1,-1, 1);
+		vertex_dirs[2] = v3s16( 1, 1, 1);
+		vertex_dirs[3] = v3s16(-1, 1, 1);
+	}
+	else if(dir == v3s16(0,0,-1))
+	{
+		// faces towards Z-
+		vertex_dirs[0] = v3s16( 1,-1,-1);
+		vertex_dirs[1] = v3s16(-1,-1,-1);
+		vertex_dirs[2] = v3s16(-1, 1,-1);
+		vertex_dirs[3] = v3s16( 1, 1,-1);
+	}
+	else if(dir == v3s16(1,0,0))
+	{
+		// faces towards X+
+		vertex_dirs[0] = v3s16( 1,-1, 1);
+		vertex_dirs[1] = v3s16( 1,-1,-1);
+		vertex_dirs[2] = v3s16( 1, 1,-1);
+		vertex_dirs[3] = v3s16( 1, 1, 1);
+	}
+	else if(dir == v3s16(-1,0,0))
+	{
+		// faces towards X-
+		vertex_dirs[0] = v3s16(-1,-1,-1);
+		vertex_dirs[1] = v3s16(-1,-1, 1);
+		vertex_dirs[2] = v3s16(-1, 1, 1);
+		vertex_dirs[3] = v3s16(-1, 1,-1);
+	}
+	else if(dir == v3s16(0,1,0))
+	{
+		// faces towards Y+ (assume Z- as "down" in texture)
+		vertex_dirs[0] = v3s16( 1, 1,-1);
+		vertex_dirs[1] = v3s16(-1, 1,-1);
+		vertex_dirs[2] = v3s16(-1, 1, 1);
+		vertex_dirs[3] = v3s16( 1, 1, 1);
+	}
+	else if(dir == v3s16(0,-1,0))
+	{
+		// faces towards Y- (assume Z+ as "down" in texture)
+		vertex_dirs[0] = v3s16( 1,-1, 1);
+		vertex_dirs[1] = v3s16(-1,-1, 1);
+		vertex_dirs[2] = v3s16(-1,-1,-1);
+		vertex_dirs[3] = v3s16( 1,-1,-1);
+	}
+}
+
+inline video::SColor lightColor(u8 alpha, u8 light)
+{
+	return video::SColor(alpha,light,light,light);
+}
+
+struct FastFace
+{
+	TileSpec tile;
+	video::S3DVertex vertices[4]; // Precalculated vertices
+};
+
+void makeFastFace(TileSpec tile, u8 li0, u8 li1, u8 li2, u8 li3, v3f p,
+		v3s16 dir, v3f scale, v3f posRelative_f,
+		core::array<FastFace> &dest)
+{
+	FastFace face;
+	
+	// Position is at the center of the cube.
+	v3f pos = p * BS;
+	posRelative_f *= BS;
+
+	v3f vertex_pos[4];
+	v3s16 vertex_dirs[4];
+	getNodeVertexDirs(dir, vertex_dirs);
+	for(u16 i=0; i<4; i++)
+	{
+		vertex_pos[i] = v3f(
+				BS/2*vertex_dirs[i].X,
+				BS/2*vertex_dirs[i].Y,
+				BS/2*vertex_dirs[i].Z
+		);
+	}
+
+	for(u16 i=0; i<4; i++)
+	{
+		vertex_pos[i].X *= scale.X;
+		vertex_pos[i].Y *= scale.Y;
+		vertex_pos[i].Z *= scale.Z;
+		vertex_pos[i] += pos + posRelative_f;
+	}
+
+	f32 abs_scale = 1.;
+	if     (scale.X < 0.999 || scale.X > 1.001) abs_scale = scale.X;
+	else if(scale.Y < 0.999 || scale.Y > 1.001) abs_scale = scale.Y;
+	else if(scale.Z < 0.999 || scale.Z > 1.001) abs_scale = scale.Z;
+
+	v3f zerovector = v3f(0,0,0);
+	
+	u8 alpha = tile.alpha;
+	/*u8 alpha = 255;
+	if(tile.id == TILE_WATER)
+		alpha = WATER_ALPHA;*/
+
+	float x0 = tile.texture.pos.X;
+	float y0 = tile.texture.pos.Y;
+	float w = tile.texture.size.X;
+	float h = tile.texture.size.Y;
+
+	/*video::SColor c = lightColor(alpha, li);
+
+	face.vertices[0] = video::S3DVertex(vertex_pos[0], v3f(0,1,0), c,
+			core::vector2d<f32>(x0+w*abs_scale, y0+h));
+	face.vertices[1] = video::S3DVertex(vertex_pos[1], v3f(0,1,0), c,
+			core::vector2d<f32>(x0, y0+h));
+	face.vertices[2] = video::S3DVertex(vertex_pos[2], v3f(0,1,0), c,
+			core::vector2d<f32>(x0, y0));
+	face.vertices[3] = video::S3DVertex(vertex_pos[3], v3f(0,1,0), c,
+			core::vector2d<f32>(x0+w*abs_scale, y0));*/
+
+	face.vertices[0] = video::S3DVertex(vertex_pos[0], v3f(0,1,0),
+			lightColor(alpha, li0),
+			core::vector2d<f32>(x0+w*abs_scale, y0+h));
+	face.vertices[1] = video::S3DVertex(vertex_pos[1], v3f(0,1,0),
+			lightColor(alpha, li1),
+			core::vector2d<f32>(x0, y0+h));
+	face.vertices[2] = video::S3DVertex(vertex_pos[2], v3f(0,1,0),
+			lightColor(alpha, li2),
+			core::vector2d<f32>(x0, y0));
+	face.vertices[3] = video::S3DVertex(vertex_pos[3], v3f(0,1,0),
+			lightColor(alpha, li3),
+			core::vector2d<f32>(x0+w*abs_scale, y0));
+
+	face.tile = tile;
+	//DEBUG
+	//f->tile = TILE_STONE;
+	
+	dest.push_back(face);
+}
+	
+/*
+	Gets node tile from any place relative to block.
+	Returns TILE_NODE if doesn't exist or should not be drawn.
+*/
+TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 face_dir,
+		NodeModMap &temp_mods)
+{
+	TileSpec spec;
+	spec = mn.getTile(face_dir);
+	
+	/*
+		Check temporary modifications on this node
+	*/
+	/*core::map<v3s16, NodeMod>::Node *n;
+	n = m_temp_mods.find(p);
+	// If modified
+	if(n != NULL)
+	{
+		struct NodeMod mod = n->getValue();*/
+	NodeMod mod;
+	if(temp_mods.get(p, &mod))
+	{
+		if(mod.type == NODEMOD_CHANGECONTENT)
+		{
+			MapNode mn2(mod.param);
+			spec = mn2.getTile(face_dir);
+		}
+		if(mod.type == NODEMOD_CRACK)
+		{
+			/*
+				Get texture id, translate it to name, append stuff to
+				name, get texture id
+			*/
+
+			// Get original texture name
+			u32 orig_id = spec.texture.id;
+			std::string orig_name = g_texturesource->getTextureName(orig_id);
+
+			// Create new texture name
+			std::ostringstream os;
+			os<<orig_name<<"^[crack"<<mod.param;
+
+			// Get new texture
+			u32 new_id = g_texturesource->getTextureId(os.str());
+			
+			/*dstream<<"MapBlock::getNodeTile(): Switching from "
+					<<orig_name<<" to "<<os.str()<<" ("
+					<<orig_id<<" to "<<new_id<<")"<<std::endl;*/
+			
+			spec.texture = g_texturesource->getTexture(new_id);
+		}
+	}
+	
+	return spec;
+}
+
+u8 getNodeContent(v3s16 p, MapNode mn, NodeModMap &temp_mods)
+{
+	/*
+		Check temporary modifications on this node
+	*/
+	/*core::map<v3s16, NodeMod>::Node *n;
+	n = m_temp_mods.find(p);
+	// If modified
+	if(n != NULL)
+	{
+		struct NodeMod mod = n->getValue();*/
+	NodeMod mod;
+	if(temp_mods.get(p, &mod))
+	{
+		if(mod.type == NODEMOD_CHANGECONTENT)
+		{
+			// Overrides content
+			return mod.param;
+		}
+		if(mod.type == NODEMOD_CRACK)
+		{
+			/*
+				Content doesn't change.
+				
+				face_contents works just like it should, because
+				there should not be faces between differently cracked
+				nodes.
+
+				If a semi-transparent node is cracked in front an
+				another one, it really doesn't matter whether there
+				is a cracked face drawn in between or not.
+			*/
+		}
+	}
+
+	return mn.d;
+}
+
+v3s16 dirs8[8] = {
+	v3s16(0,0,0),
+	v3s16(0,0,1),
+	v3s16(0,1,0),
+	v3s16(0,1,1),
+	v3s16(1,0,0),
+	v3s16(1,1,0),
+	v3s16(1,0,1),
+	v3s16(1,1,1),
+};
+
+// Calculate lighting at the XYZ- corner of p
+u8 getSmoothLight(v3s16 p, VoxelManipulator &vmanip, u32 daynight_ratio)
+{
+	u16 ambient_occlusion = 0;
+	u16 light = 0;
+	u16 light_count = 0;
+	for(u32 i=0; i<8; i++)
+	{
+		MapNode n = vmanip.getNodeNoEx(p - dirs8[i]);
+		if(content_features(n.d).param_type == CPT_LIGHT)
+		{
+			light += decode_light(n.getLightBlend(daynight_ratio));
+			light_count++;
+		}
+		else
+		{
+			if(n.d != CONTENT_IGNORE)
+				ambient_occlusion++;
+		}
+	}
+
+	if(light_count == 0)
+		return 255;
+	
+	light /= light_count;
+
+	if(ambient_occlusion > 4)
+	{
+		ambient_occlusion -= 4;
+		light = (float)light / ((float)ambient_occlusion * 0.5 + 1.0);
+	}
+
+	return light;
+}
+
+// Calculate lighting at the given corner of p
+u8 getSmoothLight(v3s16 p, v3s16 corner,
+		VoxelManipulator &vmanip, u32 daynight_ratio)
+{
+	if(corner.X == 1) p.X += 1;
+	else              assert(corner.X == -1);
+	if(corner.Y == 1) p.Y += 1;
+	else              assert(corner.Y == -1);
+	if(corner.Z == 1) p.Z += 1;
+	else              assert(corner.Z == -1);
+	
+	return getSmoothLight(p, vmanip, daynight_ratio);
+}
+
+void getTileInfo(
+		// Input:
+		v3s16 blockpos_nodes,
+		v3s16 p,
+		v3s16 face_dir,
+		u32 daynight_ratio,
+		VoxelManipulator &vmanip,
+		NodeModMap &temp_mods,
+		bool smooth_lighting,
+		// Output:
+		bool &makes_face,
+		v3s16 &p_corrected,
+		v3s16 &face_dir_corrected,
+		u8 *lights,
+		TileSpec &tile
+	)
+{
+	MapNode n0 = vmanip.getNodeNoEx(blockpos_nodes + p);
+	MapNode n1 = vmanip.getNodeNoEx(blockpos_nodes + p + face_dir);
+	TileSpec tile0 = getNodeTile(n0, p, face_dir, temp_mods);
+	TileSpec tile1 = getNodeTile(n1, p + face_dir, -face_dir, temp_mods);
+	
+	// This is hackish
+	u8 content0 = getNodeContent(p, n0, temp_mods);
+	u8 content1 = getNodeContent(p + face_dir, n1, temp_mods);
+	u8 mf = face_contents(content0, content1);
+
+	if(mf == 0)
+	{
+		makes_face = false;
+		return;
+	}
+
+	makes_face = true;
+	
+	if(mf == 1)
+	{
+		tile = tile0;
+		p_corrected = p;
+		face_dir_corrected = face_dir;
+	}
+	else
+	{
+		tile = tile1;
+		p_corrected = p + face_dir;
+		face_dir_corrected = -face_dir;
+	}
+	
+	if(smooth_lighting == false)
+	{
+		lights[0] = lights[1] = lights[2] = lights[3] =
+				decode_light(getFaceLight(daynight_ratio, n0, n1, face_dir));
+	}
+	else
+	{
+		v3s16 vertex_dirs[4];
+		getNodeVertexDirs(face_dir_corrected, vertex_dirs);
+		for(u16 i=0; i<4; i++)
+		{
+			lights[i] = getSmoothLight(blockpos_nodes + p_corrected,
+					vertex_dirs[i], vmanip, daynight_ratio);
+		}
+	}
+	
+	return;
+}
+
+/*
+	startpos:
+	translate_dir: unit vector with only one of x, y or z
+	face_dir: unit vector with only one of x, y or z
+*/
+void updateFastFaceRow(
+		u32 daynight_ratio,
+		v3f posRelative_f,
+		v3s16 startpos,
+		u16 length,
+		v3s16 translate_dir,
+		v3f translate_dir_f,
+		v3s16 face_dir,
+		v3f face_dir_f,
+		core::array<FastFace> &dest,
+		NodeModMap &temp_mods,
+		VoxelManipulator &vmanip,
+		v3s16 blockpos_nodes,
+		bool smooth_lighting)
+{
+	v3s16 p = startpos;
+	
+	u16 continuous_tiles_count = 0;
+	
+	bool makes_face;
+	v3s16 p_corrected;
+	v3s16 face_dir_corrected;
+	u8 lights[4];
+	TileSpec tile;
+	getTileInfo(blockpos_nodes, p, face_dir, daynight_ratio,
+			vmanip, temp_mods, smooth_lighting,
+			makes_face, p_corrected, face_dir_corrected, lights, tile);
+
+	for(u16 j=0; j<length; j++)
+	{
+		// If tiling can be done, this is set to false in the next step
+		bool next_is_different = true;
+		
+		v3s16 p_next;
+		
+		bool next_makes_face = false;
+		v3s16 next_p_corrected;
+		v3s16 next_face_dir_corrected;
+		u8 next_lights[4] = {0,0,0,0};
+		TileSpec next_tile;
+		
+		// If at last position, there is nothing to compare to and
+		// the face must be drawn anyway
+		if(j != length - 1)
+		{
+			p_next = p + translate_dir;
+			
+			getTileInfo(blockpos_nodes, p_next, face_dir, daynight_ratio,
+					vmanip, temp_mods, smooth_lighting,
+					next_makes_face, next_p_corrected,
+					next_face_dir_corrected, next_lights,
+					next_tile);
+			
+			if(next_makes_face == makes_face
+					&& next_p_corrected == p_corrected
+					&& next_face_dir_corrected == face_dir_corrected
+					&& next_lights[0] == lights[0]
+					&& next_lights[1] == lights[1]
+					&& next_lights[2] == lights[2]
+					&& next_lights[3] == lights[3]
+					&& next_tile == tile)
+			{
+				next_is_different = false;
+			}
+		}
+
+		continuous_tiles_count++;
+		
+		// This is set to true if the texture doesn't allow more tiling
+		bool end_of_texture = false;
+		/*
+			If there is no texture, it can be tiled infinitely.
+			If tiled==0, it means the texture can be tiled infinitely.
+			Otherwise check tiled agains continuous_tiles_count.
+		*/
+		if(tile.texture.atlas != NULL && tile.texture.tiled != 0)
+		{
+			if(tile.texture.tiled <= continuous_tiles_count)
+				end_of_texture = true;
+		}
+		
+		// Do this to disable tiling textures
+		//end_of_texture = true; //DEBUG
+		
+		if(next_is_different || end_of_texture)
+		{
+			/*
+				Create a face if there should be one
+			*/
+			if(makes_face)
+			{
+				// Floating point conversion of the position vector
+				v3f pf(p_corrected.X, p_corrected.Y, p_corrected.Z);
+				// Center point of face (kind of)
+				v3f sp = pf - ((f32)continuous_tiles_count / 2. - 0.5) * translate_dir_f;
+				v3f scale(1,1,1);
+
+				if(translate_dir.X != 0)
+				{
+					scale.X = continuous_tiles_count;
+				}
+				if(translate_dir.Y != 0)
+				{
+					scale.Y = continuous_tiles_count;
+				}
+				if(translate_dir.Z != 0)
+				{
+					scale.Z = continuous_tiles_count;
+				}
+				
+				makeFastFace(tile, lights[0], lights[1], lights[2], lights[3],
+						sp, face_dir_corrected, scale,
+						posRelative_f, dest);
+			}
+
+			continuous_tiles_count = 0;
+			
+			makes_face = next_makes_face;
+			p_corrected = next_p_corrected;
+			face_dir_corrected = next_face_dir_corrected;
+			lights[0] = next_lights[0];
+			lights[1] = next_lights[1];
+			lights[2] = next_lights[2];
+			lights[3] = next_lights[3];
+			tile = next_tile;
+		}
+		
+		p = p_next;
+	}
+}
+
+scene::SMesh* makeMapBlockMesh(MeshMakeData *data)
+{
+	// 4-21ms for MAP_BLOCKSIZE=16
+	// 24-155ms for MAP_BLOCKSIZE=32
+	//TimeTaker timer1("makeMapBlockMesh()");
+
+	core::array<FastFace> fastfaces_new;
+
+	v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
+	
+	// floating point conversion
+	v3f posRelative_f(blockpos_nodes.X, blockpos_nodes.Y, blockpos_nodes.Z);
+	
+	/*
+		Some settings
+	*/
+	//bool new_style_water = g_settings.getBool("new_style_water");
+	//bool new_style_leaves = g_settings.getBool("new_style_leaves");
+	bool smooth_lighting = g_settings.getBool("smooth_lighting");
+	
+	/*
+		We are including the faces of the trailing edges of the block.
+		This means that when something changes, the caller must
+		also update the meshes of the blocks at the leading edges.
+
+		NOTE: This is the slowest part of this method.
+	*/
+	
+	{
+		// 4-23ms for MAP_BLOCKSIZE=16
+		//TimeTaker timer2("updateMesh() collect");
+
+		/*
+			Go through every y,z and get top(y+) faces in rows of x+
+		*/
+		for(s16 y=0; y<MAP_BLOCKSIZE; y++){
+			for(s16 z=0; z<MAP_BLOCKSIZE; z++){
+				updateFastFaceRow(data->m_daynight_ratio, posRelative_f,
+						v3s16(0,y,z), MAP_BLOCKSIZE,
+						v3s16(1,0,0), //dir
+						v3f  (1,0,0),
+						v3s16(0,1,0), //face dir
+						v3f  (0,1,0),
+						fastfaces_new,
+						data->m_temp_mods,
+						data->m_vmanip,
+						blockpos_nodes,
+						smooth_lighting);
+			}
+		}
+		/*
+			Go through every x,y and get right(x+) faces in rows of z+
+		*/
+		for(s16 x=0; x<MAP_BLOCKSIZE; x++){
+			for(s16 y=0; y<MAP_BLOCKSIZE; y++){
+				updateFastFaceRow(data->m_daynight_ratio, posRelative_f,
+						v3s16(x,y,0), MAP_BLOCKSIZE,
+						v3s16(0,0,1),
+						v3f  (0,0,1),
+						v3s16(1,0,0),
+						v3f  (1,0,0),
+						fastfaces_new,
+						data->m_temp_mods,
+						data->m_vmanip,
+						blockpos_nodes,
+						smooth_lighting);
+			}
+		}
+		/*
+			Go through every y,z and get back(z+) faces in rows of x+
+		*/
+		for(s16 z=0; z<MAP_BLOCKSIZE; z++){
+			for(s16 y=0; y<MAP_BLOCKSIZE; y++){
+				updateFastFaceRow(data->m_daynight_ratio, posRelative_f,
+						v3s16(0,y,z), MAP_BLOCKSIZE,
+						v3s16(1,0,0),
+						v3f  (1,0,0),
+						v3s16(0,0,1),
+						v3f  (0,0,1),
+						fastfaces_new,
+						data->m_temp_mods,
+						data->m_vmanip,
+						blockpos_nodes,
+						smooth_lighting);
+			}
+		}
+	}
+
+	// End of slow part
+
+	/*
+		Convert FastFaces to SMesh
+	*/
+
+	MeshCollector collector;
+
+	if(fastfaces_new.size() > 0)
+	{
+		// avg 0ms (100ms spikes when loading textures the first time)
+		//TimeTaker timer2("updateMesh() mesh building");
+
+		video::SMaterial material;
+		material.setFlag(video::EMF_LIGHTING, false);
+		material.setFlag(video::EMF_BILINEAR_FILTER, false);
+		material.setFlag(video::EMF_FOG_ENABLE, true);
+		//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_OFF);
+		//material.setFlag(video::EMF_ANTI_ALIASING, video::EAAM_SIMPLE);
+
+		for(u32 i=0; i<fastfaces_new.size(); i++)
+		{
+			FastFace &f = fastfaces_new[i];
+
+			const u16 indices[] = {0,1,2,2,3,0};
+			const u16 indices_alternate[] = {0,1,3,2,3,1};
+			
+			video::ITexture *texture = f.tile.texture.atlas;
+			if(texture == NULL)
+				continue;
+
+			material.setTexture(0, texture);
+			
+			f.tile.applyMaterialOptions(material);
+
+			const u16 *indices_p = indices;
+			
+			/*
+				Revert triangles for nicer looking gradient if vertices
+				1 and 3 have same color or 0 and 2 have different color.
+			*/
+			if(f.vertices[0].Color != f.vertices[2].Color
+					|| f.vertices[1].Color == f.vertices[3].Color)
+				indices_p = indices_alternate;
+			
+			collector.append(material, f.vertices, 4, indices_p, 6);
+		}
+	}
+
+	/*
+		Add special graphics:
+		- torches
+		- flowing water
+		- fences
+		- whatever
+	*/
+
+	mapblock_mesh_generate_special(data, collector);
+	
+	/*
+		Add stuff from collector to mesh
+	*/
+	
+	scene::SMesh *mesh_new = NULL;
+	mesh_new = new scene::SMesh();
+	
+	collector.fillMesh(mesh_new);
+
+	/*
+		Do some stuff to the mesh
+	*/
+
+	mesh_new->recalculateBoundingBox();
+
+	/*
+		Delete new mesh if it is empty
+	*/
+
+	if(mesh_new->getMeshBufferCount() == 0)
+	{
+		mesh_new->drop();
+		mesh_new = NULL;
+	}
+
+	if(mesh_new)
+	{
+#if 0
+		// Usually 1-700 faces and 1-7 materials
+		std::cout<<"Updated MapBlock has "<<fastfaces_new.size()<<" faces "
+				<<"and uses "<<mesh_new->getMeshBufferCount()
+				<<" materials (meshbuffers)"<<std::endl;
+#endif
+
+		// Use VBO for mesh (this just would set this for ever buffer)
+		// This will lead to infinite memory usage because or irrlicht.
+		//mesh_new->setHardwareMappingHint(scene::EHM_STATIC);
+
+		/*
+			NOTE: If that is enabled, some kind of a queue to the main
+			thread should be made which would call irrlicht to delete
+			the hardware buffer and then delete the mesh
+		*/
+	}
+
+	return mesh_new;
+	
+	//std::cout<<"added "<<fastfaces.getSize()<<" faces."<<std::endl;
+}
+
diff --git a/src/mapblock_mesh.h b/src/mapblock_mesh.h
new file mode 100644
index 000000000..591172bc9
--- /dev/null
+++ b/src/mapblock_mesh.h
@@ -0,0 +1,143 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef MAPBLOCK_MESH_HEADER
+#define MAPBLOCK_MESH_HEADER
+
+#include "common_irrlicht.h"
+#include "mapblock_nodemod.h"
+#include "voxel.h"
+
+/*
+	Mesh making stuff
+*/
+
+/*
+	This is used because CMeshBuffer::append() is very slow
+*/
+struct PreMeshBuffer
+{
+	video::SMaterial material;
+	core::array<u16> indices;
+	core::array<video::S3DVertex> vertices;
+};
+
+class MeshCollector
+{
+public:
+	void append(
+			video::SMaterial material,
+			const video::S3DVertex* const vertices,
+			u32 numVertices,
+			const u16* const indices,
+			u32 numIndices
+		)
+	{
+		PreMeshBuffer *p = NULL;
+		for(u32 i=0; i<m_prebuffers.size(); i++)
+		{
+			PreMeshBuffer &pp = m_prebuffers[i];
+			if(pp.material != material)
+				continue;
+
+			p = &pp;
+			break;
+		}
+
+		if(p == NULL)
+		{
+			PreMeshBuffer pp;
+			pp.material = material;
+			m_prebuffers.push_back(pp);
+			p = &m_prebuffers[m_prebuffers.size()-1];
+		}
+
+		u32 vertex_count = p->vertices.size();
+		for(u32 i=0; i<numIndices; i++)
+		{
+			u32 j = indices[i] + vertex_count;
+			if(j > 65535)
+			{
+				dstream<<"FIXME: Meshbuffer ran out of indices"<<std::endl;
+				// NOTE: Fix is to just add an another MeshBuffer
+			}
+			p->indices.push_back(j);
+		}
+		for(u32 i=0; i<numVertices; i++)
+		{
+			p->vertices.push_back(vertices[i]);
+		}
+	}
+
+	void fillMesh(scene::SMesh *mesh)
+	{
+		/*dstream<<"Filling mesh with "<<m_prebuffers.size()
+				<<" meshbuffers"<<std::endl;*/
+		for(u32 i=0; i<m_prebuffers.size(); i++)
+		{
+			PreMeshBuffer &p = m_prebuffers[i];
+
+			/*dstream<<"p.vertices.size()="<<p.vertices.size()
+					<<", p.indices.size()="<<p.indices.size()
+					<<std::endl;*/
+			
+			// Create meshbuffer
+			
+			// This is a "Standard MeshBuffer",
+			// it's a typedeffed CMeshBuffer<video::S3DVertex>
+			scene::SMeshBuffer *buf = new scene::SMeshBuffer();
+			// Set material
+			buf->Material = p.material;
+			//((scene::SMeshBuffer*)buf)->Material = p.material;
+			// Use VBO
+			//buf->setHardwareMappingHint(scene::EHM_STATIC);
+			// Add to mesh
+			mesh->addMeshBuffer(buf);
+			// Mesh grabbed it
+			buf->drop();
+
+			buf->append(p.vertices.pointer(), p.vertices.size(),
+					p.indices.pointer(), p.indices.size());
+		}
+	}
+
+private:
+	core::array<PreMeshBuffer> m_prebuffers;
+};
+
+class MapBlock;
+
+struct MeshMakeData
+{
+	u32 m_daynight_ratio;
+	NodeModMap m_temp_mods;
+	VoxelManipulator m_vmanip;
+	v3s16 m_blockpos;
+	
+	/*
+		Copy central data directly from block, and other data from
+		parent of block.
+	*/
+	void fill(u32 daynight_ratio, MapBlock *block);
+};
+
+scene::SMesh* makeMapBlockMesh(MeshMakeData *data);
+
+#endif
+
diff --git a/src/mapnode.cpp b/src/mapnode.cpp
index 3717bf0ab..dae21e7cc 100644
--- a/src/mapnode.cpp
+++ b/src/mapnode.cpp
@@ -230,4 +230,54 @@ u8 MapNode::getMineral()
 	return MINERAL_NONE;
 }
 
+/*
+	Gets lighting value at face of node
+	
+	Parameters must consist of air and !air.
+	Order doesn't matter.
+
+	If either of the nodes doesn't exist, light is 0.
+	
+	parameters:
+		daynight_ratio: 0...1000
+		n: getNodeParent(p)
+		n2: getNodeParent(p + face_dir)
+		face_dir: axis oriented unit vector from p to p2
+	
+	returns encoded light value.
+*/
+u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+		v3s16 face_dir)
+{
+	try{
+		u8 light;
+		u8 l1 = n.getLightBlend(daynight_ratio);
+		u8 l2 = n2.getLightBlend(daynight_ratio);
+		if(l1 > l2)
+			light = l1;
+		else
+			light = l2;
+
+		// Make some nice difference to different sides
+
+		// This makes light come from a corner
+		/*if(face_dir.X == 1 || face_dir.Z == 1 || face_dir.Y == -1)
+			light = diminish_light(diminish_light(light));
+		else if(face_dir.X == -1 || face_dir.Z == -1)
+			light = diminish_light(light);*/
+		
+		// All neighboring faces have different shade (like in minecraft)
+		if(face_dir.X == 1 || face_dir.X == -1 || face_dir.Y == -1)
+			light = diminish_light(diminish_light(light));
+		else if(face_dir.Z == 1 || face_dir.Z == -1)
+			light = diminish_light(light);
+
+		return light;
+	}
+	catch(InvalidPositionException &e)
+	{
+		return 0;
+	}
+}
+
 
diff --git a/src/mapnode.h b/src/mapnode.h
index aa3fa3960..d975a50c4 100644
--- a/src/mapnode.h
+++ b/src/mapnode.h
@@ -648,7 +648,24 @@ struct MapNode
 	}
 };
 
+/*
+	Gets lighting value at face of node
+	
+	Parameters must consist of air and !air.
+	Order doesn't matter.
 
+	If either of the nodes doesn't exist, light is 0.
+	
+	parameters:
+		daynight_ratio: 0...1000
+		n: getNodeParent(p)
+		n2: getNodeParent(p + face_dir)
+		face_dir: axis oriented unit vector from p to p2
+	
+	returns encoded light value.
+*/
+u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+		v3s16 face_dir);
 
 #endif