src/content_mapblock.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "content_mapblock.h"
  21 #include "content_mapnode.h"
  22 #include "main.h" // For g_settings and g_texturesource
  23 #include "mineral.h"
  24 #include "mapblock_mesh.h" // For MapBlock_LightColor()
  25
  26 #ifndef SERVER
  27 // Create a cuboid.
  28 //  material  - the material to use (for all 6 faces)
  29 //  collector - the MeshCollector for the resulting polygons
  30 //  pa        - texture atlas pointer for the material
  31 //  c         - vertex colour - used for all
  32 //  pos       - the position of the centre of the cuboid
  33 //  rz,ry,rz  - the radius of the cuboid in each dimension
  34 //  txc       - texture coordinates - this is a list of texture coordinates
  35 //              for the opposite corners of each face - therefore, there
  36 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  37 //              NULL to use the entire texture for each face. The order of
  38 //              the faces in the list is top-backi-right-front-left-bottom
  39 //              If you specified 0,0,1,1 for each face, that would be the
  40 //              same as passing NULL.
  41 void makeCuboid(video::SMaterial &material, MeshCollector *collector,
  42         AtlasPointer* pa, video::SColor &c,
  43         v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
  44 {
  45         f32 tu0=pa->x0();
  46         f32 tu1=pa->x1();
  47         f32 tv0=pa->y0();
  48         f32 tv1=pa->y1();
  49         f32 txus=tu1-tu0;
  50         f32 txvs=tv1-tv0;
  51
  52         video::S3DVertex v[4] =
  53         {
  54                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
  55                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
  56                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
  57                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
  58         };
  59
  60         for(int i=0;i<6;i++)
  61         {
  62                 switch(i)
  63                 {
  64                         case 0: // top
  65                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  66                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  67                                 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
  68                                 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
  69                                 break;
  70                         case 1: // back
  71                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  72                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  73                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  74                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  75                                 break;
  76                         case 2: //right
  77                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  78                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  79                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  80                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  81                                 break;
  82                         case 3: // front
  83                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  84                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  85                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  86                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  87                                 break;
  88                         case 4: // left
  89                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  90                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  91                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  92                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  93                                 break;
  94                         case 5: // bottom
  95                                 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
  96                                 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
  97                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  98                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  99                                 break;
 100                 }
 101
 102                 if(txc!=NULL)
 103                 {
 104                         v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
 105                         v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
 106                         v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
 107                         v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
 108                         txc+=4;
 109                 }
 110
 111                 for(u16 i=0; i<4; i++)
 112                         v[i].Pos += pos;
 113                 u16 indices[] = {0,1,2,2,3,0};
 114                 collector->append(material, v, 4, indices, 6);
 115
 116         }
 117
 118 }
 119 #endif
 120
 121 #ifndef SERVER
 122 void mapblock_mesh_generate_special(MeshMakeData *data,
 123                 MeshCollector &collector)
 124 {
 125         // 0ms
 126         //TimeTaker timer("mapblock_mesh_generate_special()");
 127
 128         /*
 129                 Some settings
 130         */
 131         bool new_style_water = g_settings.getBool("new_style_water");
 132         bool new_style_leaves = g_settings.getBool("new_style_leaves");
 133         //bool smooth_lighting = g_settings.getBool("smooth_lighting");
 134         bool invisible_stone = g_settings.getBool("invisible_stone");
 135
 136         float node_liquid_level = 1.0;
 137         if(new_style_water)
 138                 node_liquid_level = 0.85;
 139
 140         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 141
 142         // New-style leaves material
 143         video::SMaterial material_leaves1;
 144         material_leaves1.setFlag(video::EMF_LIGHTING, false);
 145         //material_leaves1.setFlag(video::EMF_BACK_FACE_CULLING, false);
 146         material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
 147         material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
 148         material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 149         AtlasPointer pa_leaves1 = g_texturesource->getTexture(
 150                         g_texturesource->getTextureId("leaves.png"));
 151         material_leaves1.setTexture(0, pa_leaves1.atlas);
 152
 153         // Glass material
 154         video::SMaterial material_glass;
 155         material_glass.setFlag(video::EMF_LIGHTING, false);
 156         material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
 157         material_glass.setFlag(video::EMF_FOG_ENABLE, true);
 158         material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 159         AtlasPointer pa_glass = g_texturesource->getTexture(
 160                         g_texturesource->getTextureId("glass.png"));
 161         material_glass.setTexture(0, pa_glass.atlas);
 162
 163         // Wood material
 164         video::SMaterial material_wood;
 165         material_wood.setFlag(video::EMF_LIGHTING, false);
 166         material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
 167         material_wood.setFlag(video::EMF_FOG_ENABLE, true);
 168         material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 169         AtlasPointer pa_wood = g_texturesource->getTexture(
 170                         g_texturesource->getTextureId("wood.png"));
 171         material_wood.setTexture(0, pa_wood.atlas);
 172
 173         // General ground material for special output
 174         // Texture is modified just before usage
 175         video::SMaterial material_general;
 176         material_general.setFlag(video::EMF_LIGHTING, false);
 177         material_general.setFlag(video::EMF_BILINEAR_FILTER, false);
 178         material_general.setFlag(video::EMF_FOG_ENABLE, true);
 179         material_general.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 180
 181
 182         // Papyrus material
 183         video::SMaterial material_papyrus;
 184         material_papyrus.setFlag(video::EMF_LIGHTING, false);
 185         material_papyrus.setFlag(video::EMF_BILINEAR_FILTER, false);
 186         material_papyrus.setFlag(video::EMF_FOG_ENABLE, true);
 187         material_papyrus.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 188         AtlasPointer pa_papyrus = g_texturesource->getTexture(
 189                         g_texturesource->getTextureId("papyrus.png"));
 190         material_papyrus.setTexture(0, pa_papyrus.atlas);
 191
 192         // junglegrass material
 193         video::SMaterial material_junglegrass;
 194         material_junglegrass.setFlag(video::EMF_LIGHTING, false);
 195         material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
 196         material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
 197         material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 198         AtlasPointer pa_junglegrass = g_texturesource->getTexture(
 199                         g_texturesource->getTextureId("junglegrass.png"));
 200         material_junglegrass.setTexture(0, pa_junglegrass.atlas);
 201
 202         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 203         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 204         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 205         {
 206                 v3s16 p(x,y,z);
 207
 208                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 209
 210                 /*
 211                         Add torches to mesh
 212                 */
 213                 if(n.getContent() == CONTENT_TORCH)
 214                 {
 215                         video::SColor c(255,255,255,255);
 216
 217                         // Wall at X+ of node
 218                         video::S3DVertex vertices[4] =
 219                         {
 220                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
 221                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
 222                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
 223                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
 224                         };
 225
 226                         v3s16 dir = unpackDir(n.param2);
 227
 228                         for(s32 i=0; i<4; i++)
 229                         {
 230                                 if(dir == v3s16(1,0,0))
 231                                         vertices[i].Pos.rotateXZBy(0);
 232                                 if(dir == v3s16(-1,0,0))
 233                                         vertices[i].Pos.rotateXZBy(180);
 234                                 if(dir == v3s16(0,0,1))
 235                                         vertices[i].Pos.rotateXZBy(90);
 236                                 if(dir == v3s16(0,0,-1))
 237                                         vertices[i].Pos.rotateXZBy(-90);
 238                                 if(dir == v3s16(0,-1,0))
 239                                         vertices[i].Pos.rotateXZBy(45);
 240                                 if(dir == v3s16(0,1,0))
 241                                         vertices[i].Pos.rotateXZBy(-45);
 242
 243                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 244                         }
 245
 246                         // Set material
 247                         video::SMaterial material;
 248                         material.setFlag(video::EMF_LIGHTING, false);
 249                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 250                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 251                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 252                         material.MaterialType
 253                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 254
 255                         if(dir == v3s16(0,-1,0))
 256                                 material.setTexture(0,
 257                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 258                         else if(dir == v3s16(0,1,0))
 259                                 material.setTexture(0,
 260                                                 g_texturesource->getTextureRaw("torch_on_ceiling.png"));
 261                         // For backwards compatibility
 262                         else if(dir == v3s16(0,0,0))
 263                                 material.setTexture(0,
 264                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 265                         else
 266                                 material.setTexture(0,
 267                                                 g_texturesource->getTextureRaw("torch.png"));
 268
 269                         u16 indices[] = {0,1,2,2,3,0};
 270                         // Add to mesh collector
 271                         collector.append(material, vertices, 4, indices, 6);
 272                 }
 273                 /*
 274                         Signs on walls
 275                 */
 276                 else if(n.getContent() == CONTENT_SIGN_WALL)
 277                 {
 278                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 279                         video::SColor c = MapBlock_LightColor(255, l);
 280
 281                         float d = (float)BS/16;
 282                         // Wall at X+ of node
 283                         video::S3DVertex vertices[4] =
 284                         {
 285                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
 286                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
 287                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
 288                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
 289                         };
 290
 291                         v3s16 dir = unpackDir(n.param2);
 292
 293                         for(s32 i=0; i<4; i++)
 294                         {
 295                                 if(dir == v3s16(1,0,0))
 296                                         vertices[i].Pos.rotateXZBy(0);
 297                                 if(dir == v3s16(-1,0,0))
 298                                         vertices[i].Pos.rotateXZBy(180);
 299                                 if(dir == v3s16(0,0,1))
 300                                         vertices[i].Pos.rotateXZBy(90);
 301                                 if(dir == v3s16(0,0,-1))
 302                                         vertices[i].Pos.rotateXZBy(-90);
 303                                 if(dir == v3s16(0,-1,0))
 304                                         vertices[i].Pos.rotateXYBy(-90);
 305                                 if(dir == v3s16(0,1,0))
 306                                         vertices[i].Pos.rotateXYBy(90);
 307
 308                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 309                         }
 310
 311                         // Set material
 312                         video::SMaterial material;
 313                         material.setFlag(video::EMF_LIGHTING, false);
 314                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 315                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 316                         material.setFlag(video::EMF_FOG_ENABLE, true);
 317                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 318                         material.MaterialType
 319                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 320
 321                         material.setTexture(0,
 322                                         g_texturesource->getTextureRaw("sign_wall.png"));
 323
 324                         u16 indices[] = {0,1,2,2,3,0};
 325                         // Add to mesh collector
 326                         collector.append(material, vertices, 4, indices, 6);
 327                 }
 328                 /*
 329                         Add flowing liquid to mesh
 330                 */
 331                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 332                 {
 333                         assert(content_features(n).special_material);
 334                         video::SMaterial &liquid_material =
 335                                         *content_features(n).special_material;
 336                         assert(content_features(n).special_atlas);
 337                         AtlasPointer &pa_liquid1 =
 338                                         *content_features(n).special_atlas;
 339
 340                         bool top_is_same_liquid = false;
 341                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 342                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 343                         content_t c_source = content_features(n).liquid_alternative_source;
 344                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 345                                 top_is_same_liquid = true;
 346
 347                         u8 l = 0;
 348                         // Use the light of the node on top if possible
 349                         if(content_features(ntop).param_type == CPT_LIGHT)
 350                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 351                         // Otherwise use the light of this node (the liquid)
 352                         else
 353                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 354                         video::SColor c = MapBlock_LightColor(
 355                                         content_features(n).vertex_alpha, l);
 356
 357                         // Neighbor liquid levels (key = relative position)
 358                         // Includes current node
 359                         core::map<v3s16, f32> neighbor_levels;
 360                         core::map<v3s16, content_t> neighbor_contents;
 361                         core::map<v3s16, u8> neighbor_flags;
 362                         const u8 neighborflag_top_is_same_liquid = 0x01;
 363                         v3s16 neighbor_dirs[9] = {
 364                                 v3s16(0,0,0),
 365                                 v3s16(0,0,1),
 366                                 v3s16(0,0,-1),
 367                                 v3s16(1,0,0),
 368                                 v3s16(-1,0,0),
 369                                 v3s16(1,0,1),
 370                                 v3s16(-1,0,-1),
 371                                 v3s16(1,0,-1),
 372                                 v3s16(-1,0,1),
 373                         };
 374                         for(u32 i=0; i<9; i++)
 375                         {
 376                                 u8 content = CONTENT_AIR;
 377                                 float level = -0.5 * BS;
 378                                 u8 flags = 0;
 379                                 // Check neighbor
 380                                 v3s16 p2 = p + neighbor_dirs[i];
 381                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 382                                 if(n2.getContent() != CONTENT_IGNORE)
 383                                 {
 384                                         content = n2.getContent();
 385
 386                                         if(n2.getContent() == c_source)
 387                                                 level = (-0.5+node_liquid_level) * BS;
 388                                         else if(n2.getContent() == c_flowing)
 389                                                 level = (-0.5 + ((float)n2.param2 + 0.5) / 8.0
 390                                                                 * node_liquid_level) * BS;
 391
 392                                         // Check node above neighbor.
 393                                         // NOTE: This doesn't get executed if neighbor
 394                                         //       doesn't exist
 395                                         p2.Y += 1;
 396                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 397                                         if(n2.getContent() == c_source ||
 398                                                         n2.getContent() == c_flowing)
 399                                                 flags |= neighborflag_top_is_same_liquid;
 400                                 }
 401
 402                                 neighbor_levels.insert(neighbor_dirs[i], level);
 403                                 neighbor_contents.insert(neighbor_dirs[i], content);
 404                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 405                         }
 406
 407                         //float liquid_level = (-0.5 + ((float)n.param2 + 0.5) / 8.0) * BS;
 408                         //float liquid_level = neighbor_levels[v3s16(0,0,0)];
 409
 410                         // Corner heights (average between four liquids)
 411                         f32 corner_levels[4];
 412
 413                         v3s16 halfdirs[4] = {
 414                                 v3s16(0,0,0),
 415                                 v3s16(1,0,0),
 416                                 v3s16(1,0,1),
 417                                 v3s16(0,0,1),
 418                         };
 419                         for(u32 i=0; i<4; i++)
 420                         {
 421                                 v3s16 cornerdir = halfdirs[i];
 422                                 float cornerlevel = 0;
 423                                 u32 valid_count = 0;
 424                                 for(u32 j=0; j<4; j++)
 425                                 {
 426                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 427                                         u8 content = neighbor_contents[neighbordir];
 428                                         // Special case for source nodes
 429                                         if(content == c_source)
 430                                         {
 431                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 432                                                 valid_count = 1;
 433                                                 break;
 434                                         }
 435                                         else if(content == c_flowing)
 436                                         {
 437                                                 cornerlevel += neighbor_levels[neighbordir];
 438                                                 valid_count++;
 439                                         }
 440                                         else if(content == CONTENT_AIR)
 441                                         {
 442                                                 cornerlevel += -0.5*BS;
 443                                                 valid_count++;
 444                                         }
 445                                 }
 446                                 if(valid_count > 0)
 447                                         cornerlevel /= valid_count;
 448                                 corner_levels[i] = cornerlevel;
 449                         }
 450
 451                         /*
 452                                 Generate sides
 453                         */
 454
 455                         v3s16 side_dirs[4] = {
 456                                 v3s16(1,0,0),
 457                                 v3s16(-1,0,0),
 458                                 v3s16(0,0,1),
 459                                 v3s16(0,0,-1),
 460                         };
 461                         s16 side_corners[4][2] = {
 462                                 {1, 2},
 463                                 {3, 0},
 464                                 {2, 3},
 465                                 {0, 1},
 466                         };
 467                         for(u32 i=0; i<4; i++)
 468                         {
 469                                 v3s16 dir = side_dirs[i];
 470
 471                                 /*
 472                                         If our topside is liquid and neighbor's topside
 473                                         is liquid, don't draw side face
 474                                 */
 475                                 if(top_is_same_liquid &&
 476                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 477                                         continue;
 478
 479                                 u8 neighbor_content = neighbor_contents[dir];
 480
 481                                 // Don't draw face if neighbor is not air or liquid
 482                                 if(neighbor_content != CONTENT_AIR
 483                                                 && neighbor_content != c_source)
 484                                         continue;
 485
 486                                 bool neighbor_is_liquid = (neighbor_content == c_source);
 487
 488                                 // Don't draw any faces if neighbor is liquid and top is liquid
 489                                 if(neighbor_is_liquid == true && top_is_same_liquid == false)
 490                                         continue;
 491
 492                                 video::S3DVertex vertices[4] =
 493                                 {
 494                                         /*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 495                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 496                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 497                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 498                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 499                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 500                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 501                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 502                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 503                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 504                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 505                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 506                                 };
 507
 508                                 /*
 509                                         If our topside is liquid, set upper border of face
 510                                         at upper border of node
 511                                 */
 512                                 if(top_is_same_liquid)
 513                                 {
 514                                         vertices[2].Pos.Y = 0.5*BS;
 515                                         vertices[3].Pos.Y = 0.5*BS;
 516                                 }
 517                                 /*
 518                                         Otherwise upper position of face is corner levels
 519                                 */
 520                                 else
 521                                 {
 522                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 523                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 524                                 }
 525
 526                                 /*
 527                                         If neighbor is liquid, lower border of face is corner
 528                                         liquid levels
 529                                 */
 530                                 if(neighbor_is_liquid)
 531                                 {
 532                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 533                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 534                                 }
 535                                 /*
 536                                         If neighbor is not liquid, lower border of face is
 537                                         lower border of node
 538                                 */
 539                                 else
 540                                 {
 541                                         vertices[0].Pos.Y = -0.5*BS;
 542                                         vertices[1].Pos.Y = -0.5*BS;
 543                                 }
 544
 545                                 for(s32 j=0; j<4; j++)
 546                                 {
 547                                         if(dir == v3s16(0,0,1))
 548                                                 vertices[j].Pos.rotateXZBy(0);
 549                                         if(dir == v3s16(0,0,-1))
 550                                                 vertices[j].Pos.rotateXZBy(180);
 551                                         if(dir == v3s16(-1,0,0))
 552                                                 vertices[j].Pos.rotateXZBy(90);
 553                                         if(dir == v3s16(1,0,-0))
 554                                                 vertices[j].Pos.rotateXZBy(-90);
 555
 556                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 557                                 }
 558
 559                                 u16 indices[] = {0,1,2,2,3,0};
 560                                 // Add to mesh collector
 561                                 collector.append(liquid_material, vertices, 4, indices, 6);
 562                         }
 563
 564                         /*
 565                                 Generate top side, if appropriate
 566                         */
 567
 568                         if(top_is_same_liquid == false)
 569                         {
 570                                 video::S3DVertex vertices[4] =
 571                                 {
 572                                         /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 573                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 574                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 575                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 576                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 577                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 578                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 579                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 580                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 581                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 582                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 583                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 584                                 };
 585
 586                                 // This fixes a strange bug
 587                                 s32 corner_resolve[4] = {3,2,1,0};
 588
 589                                 for(s32 i=0; i<4; i++)
 590                                 {
 591                                         //vertices[i].Pos.Y += liquid_level;
 592                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 593                                         s32 j = corner_resolve[i];
 594                                         vertices[i].Pos.Y += corner_levels[j];
 595                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 596                                 }
 597
 598                                 u16 indices[] = {0,1,2,2,3,0};
 599                                 // Add to mesh collector
 600                                 collector.append(liquid_material, vertices, 4, indices, 6);
 601                         }
 602                 }
 603                 /*
 604                         Add water sources to mesh if using new style
 605                 */
 606                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 607                                 && new_style_water)
 608                 {
 609                         assert(content_features(n).special_material);
 610                         video::SMaterial &liquid_material =
 611                                         *content_features(n).special_material;
 612                         assert(content_features(n).special_atlas);
 613                         AtlasPointer &pa_liquid1 =
 614                                         *content_features(n).special_atlas;
 615
 616                         bool top_is_air = false;
 617                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 618                         if(n.getContent() == CONTENT_AIR)
 619                                 top_is_air = true;
 620
 621                         if(top_is_air == false)
 622                                 continue;
 623
 624                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 625                         video::SColor c = MapBlock_LightColor(
 626                                         content_features(n).vertex_alpha, l);
 627
 628                         video::S3DVertex vertices[4] =
 629                         {
 630                                 /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 631                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 632                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 633                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 634                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 635                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 636                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 637                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 638                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 639                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 640                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 641                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 642                         };
 643
 644                         for(s32 i=0; i<4; i++)
 645                         {
 646                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 647                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 648                         }
 649
 650                         u16 indices[] = {0,1,2,2,3,0};
 651                         // Add to mesh collector
 652                         collector.append(liquid_material, vertices, 4, indices, 6);
 653                 }
 654                 /*
 655                         Add leaves if using new style
 656                 */
 657                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 658                 {
 659                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 660                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 661                         video::SColor c = MapBlock_LightColor(255, l);
 662
 663                         for(u32 j=0; j<6; j++)
 664                         {
 665                                 video::S3DVertex vertices[4] =
 666                                 {
 667                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 668                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 669                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 670                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 671                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 672                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 673                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 674                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 675                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 676                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 677                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 678                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 679                                 };
 680
 681                                 if(j == 0)
 682                                 {
 683                                         for(u16 i=0; i<4; i++)
 684                                                 vertices[i].Pos.rotateXZBy(0);
 685                                 }
 686                                 else if(j == 1)
 687                                 {
 688                                         for(u16 i=0; i<4; i++)
 689                                                 vertices[i].Pos.rotateXZBy(180);
 690                                 }
 691                                 else if(j == 2)
 692                                 {
 693                                         for(u16 i=0; i<4; i++)
 694                                                 vertices[i].Pos.rotateXZBy(-90);
 695                                 }
 696                                 else if(j == 3)
 697                                 {
 698                                         for(u16 i=0; i<4; i++)
 699                                                 vertices[i].Pos.rotateXZBy(90);
 700                                 }
 701                                 else if(j == 4)
 702                                 {
 703                                         for(u16 i=0; i<4; i++)
 704                                                 vertices[i].Pos.rotateYZBy(-90);
 705                                 }
 706                                 else if(j == 5)
 707                                 {
 708                                         for(u16 i=0; i<4; i++)
 709                                                 vertices[i].Pos.rotateYZBy(90);
 710                                 }
 711
 712                                 for(u16 i=0; i<4; i++)
 713                                 {
 714                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 715                                 }
 716
 717                                 u16 indices[] = {0,1,2,2,3,0};
 718                                 // Add to mesh collector
 719                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 720                         }
 721                 }
 722                 /*
 723                         Add glass
 724                 */
 725                 else if(n.getContent() == CONTENT_GLASS)
 726                 {
 727                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 728                         video::SColor c = MapBlock_LightColor(255, l);
 729
 730                         for(u32 j=0; j<6; j++)
 731                         {
 732                                 video::S3DVertex vertices[4] =
 733                                 {
 734                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 735                                                 pa_glass.x0(), pa_glass.y1()),
 736                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 737                                                 pa_glass.x1(), pa_glass.y1()),
 738                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 739                                                 pa_glass.x1(), pa_glass.y0()),
 740                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 741                                                 pa_glass.x0(), pa_glass.y0()),
 742                                 };
 743
 744                                 if(j == 0)
 745                                 {
 746                                         for(u16 i=0; i<4; i++)
 747                                                 vertices[i].Pos.rotateXZBy(0);
 748                                 }
 749                                 else if(j == 1)
 750                                 {
 751                                         for(u16 i=0; i<4; i++)
 752                                                 vertices[i].Pos.rotateXZBy(180);
 753                                 }
 754                                 else if(j == 2)
 755                                 {
 756                                         for(u16 i=0; i<4; i++)
 757                                                 vertices[i].Pos.rotateXZBy(-90);
 758                                 }
 759                                 else if(j == 3)
 760                                 {
 761                                         for(u16 i=0; i<4; i++)
 762                                                 vertices[i].Pos.rotateXZBy(90);
 763                                 }
 764                                 else if(j == 4)
 765                                 {
 766                                         for(u16 i=0; i<4; i++)
 767                                                 vertices[i].Pos.rotateYZBy(-90);
 768                                 }
 769                                 else if(j == 5)
 770                                 {
 771                                         for(u16 i=0; i<4; i++)
 772                                                 vertices[i].Pos.rotateYZBy(90);
 773                                 }
 774
 775                                 for(u16 i=0; i<4; i++)
 776                                 {
 777                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 778                                 }
 779
 780                                 u16 indices[] = {0,1,2,2,3,0};
 781                                 // Add to mesh collector
 782                                 collector.append(material_glass, vertices, 4, indices, 6);
 783                         }
 784                 }
 785                 /*
 786                         Add fence
 787                 */
 788                 else if(n.getContent() == CONTENT_FENCE)
 789                 {
 790                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 791                         video::SColor c = MapBlock_LightColor(255, l);
 792
 793                         const f32 post_rad=(f32)BS/10;
 794                         const f32 bar_rad=(f32)BS/20;
 795                         const f32 bar_len=(f32)(BS/2)-post_rad;
 796
 797                         // The post - always present
 798                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 799                         f32 postuv[24]={
 800                                         0.4,0.4,0.6,0.6,
 801                                         0.35,0,0.65,1,
 802                                         0.35,0,0.65,1,
 803                                         0.35,0,0.65,1,
 804                                         0.35,0,0.65,1,
 805                                         0.4,0.4,0.6,0.6};
 806                         makeCuboid(material_wood, &collector,
 807                                 &pa_wood, c, pos,
 808                                 post_rad,BS/2,post_rad, postuv);
 809
 810                         // Now a section of fence, +X, if there's a post there
 811                         v3s16 p2 = p;
 812                         p2.X++;
 813                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 814                         if(n2.getContent() == CONTENT_FENCE)
 815                         {
 816                                 pos = intToFloat(p+blockpos_nodes, BS);
 817                                 pos.X += BS/2;
 818                                 pos.Y += BS/4;
 819                                 f32 xrailuv[24]={
 820                                         0,0.4,1,0.6,
 821                                         0,0.4,1,0.6,
 822                                         0,0.4,1,0.6,
 823                                         0,0.4,1,0.6,
 824                                         0,0.4,1,0.6,
 825                                         0,0.4,1,0.6};
 826                                 makeCuboid(material_wood, &collector,
 827                                         &pa_wood, c, pos,
 828                                         bar_len,bar_rad,bar_rad, xrailuv);
 829
 830                                 pos.Y -= BS/2;
 831                                 makeCuboid(material_wood, &collector,
 832                                         &pa_wood, c, pos,
 833                                         bar_len,bar_rad,bar_rad, xrailuv);
 834                         }
 835
 836                         // Now a section of fence, +Z, if there's a post there
 837                         p2 = p;
 838                         p2.Z++;
 839                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 840                         if(n2.getContent() == CONTENT_FENCE)
 841                         {
 842                                 pos = intToFloat(p+blockpos_nodes, BS);
 843                                 pos.Z += BS/2;
 844                                 pos.Y += BS/4;
 845                                 f32 zrailuv[24]={
 846                                         0,0.4,1,0.6,
 847                                         0,0.4,1,0.6,
 848                                         0,0.4,1,0.6,
 849                                         0,0.4,1,0.6,
 850                                         0,0.4,1,0.6,
 851                                         0,0.4,1,0.6};
 852                                 makeCuboid(material_wood, &collector,
 853                                         &pa_wood, c, pos,
 854                                         bar_rad,bar_rad,bar_len, zrailuv);
 855                                 pos.Y -= BS/2;
 856                                 makeCuboid(material_wood, &collector,
 857                                         &pa_wood, c, pos,
 858                                         bar_rad,bar_rad,bar_len, zrailuv);
 859
 860                         }
 861
 862                 }
 863 #if 1
 864                 /*
 865                         Add stones with minerals if stone is invisible
 866                 */
 867                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 868                 {
 869                         for(u32 j=0; j<6; j++)
 870                         {
 871                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 872                                 v3s16 dir = g_6dirs[j];
 873                                 /*u8 l = 0;
 874                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 875                                 if(content_features(n2).param_type == CPT_LIGHT)
 876                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 877                                 else
 878                                         l = 255;*/
 879                                 u8 l = 255;
 880                                 video::SColor c = MapBlock_LightColor(255, l);
 881
 882                                 // Get the right texture
 883                                 TileSpec ts = n.getTile(dir);
 884                                 AtlasPointer ap = ts.texture;
 885                                 material_general.setTexture(0, ap.atlas);
 886
 887                                 video::S3DVertex vertices[4] =
 888                                 {
 889                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 890                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 891                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 892                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 893                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 894                                                 ap.x0(), ap.y1()),
 895                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 896                                                 ap.x1(), ap.y1()),
 897                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 898                                                 ap.x1(), ap.y0()),
 899                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 900                                                 ap.x0(), ap.y0()),
 901                                 };
 902
 903                                 if(j == 0)
 904                                 {
 905                                         for(u16 i=0; i<4; i++)
 906                                                 vertices[i].Pos.rotateXZBy(0);
 907                                 }
 908                                 else if(j == 1)
 909                                 {
 910                                         for(u16 i=0; i<4; i++)
 911                                                 vertices[i].Pos.rotateXZBy(180);
 912                                 }
 913                                 else if(j == 2)
 914                                 {
 915                                         for(u16 i=0; i<4; i++)
 916                                                 vertices[i].Pos.rotateXZBy(-90);
 917                                 }
 918                                 else if(j == 3)
 919                                 {
 920                                         for(u16 i=0; i<4; i++)
 921                                                 vertices[i].Pos.rotateXZBy(90);
 922                                 }
 923                                 else if(j == 4)
 924
 925                                 for(u16 i=0; i<4; i++)
 926                                 {
 927                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 928                                 }
 929
 930                                 u16 indices[] = {0,1,2,2,3,0};
 931                                 // Add to mesh collector
 932                                 collector.append(material_general, vertices, 4, indices, 6);
 933                         }
 934                 }
 935 #endif
 936                 else if(n.getContent() == CONTENT_PAPYRUS)
 937                 {
 938                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 939                         video::SColor c = MapBlock_LightColor(255, l);
 940
 941                         for(u32 j=0; j<4; j++)
 942                         {
 943                                 video::S3DVertex vertices[4] =
 944                                 {
 945                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 946                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 947                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 948                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 949                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 950                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 951                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 952                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 953                                 };
 954
 955                                 if(j == 0)
 956                                 {
 957                                         for(u16 i=0; i<4; i++)
 958                                                 vertices[i].Pos.rotateXZBy(45);
 959                                 }
 960                                 else if(j == 1)
 961                                 {
 962                                         for(u16 i=0; i<4; i++)
 963                                                 vertices[i].Pos.rotateXZBy(-45);
 964                                 }
 965                                 else if(j == 2)
 966                                 {
 967                                         for(u16 i=0; i<4; i++)
 968                                                 vertices[i].Pos.rotateXZBy(135);
 969                                 }
 970                                 else if(j == 3)
 971                                 {
 972                                         for(u16 i=0; i<4; i++)
 973                                                 vertices[i].Pos.rotateXZBy(-135);
 974                                 }
 975
 976                                 for(u16 i=0; i<4; i++)
 977                                 {
 978                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 979                                 }
 980
 981                                 u16 indices[] = {0,1,2,2,3,0};
 982                                 // Add to mesh collector
 983                                 collector.append(material_papyrus, vertices, 4, indices, 6);
 984                         }
 985                 }
 986                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
 987                 {
 988                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 989                         video::SColor c = MapBlock_LightColor(255, l);
 990
 991                         for(u32 j=0; j<4; j++)
 992                         {
 993                                 video::S3DVertex vertices[4] =
 994                                 {
 995                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 996                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 997                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 998                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 999                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1000                                                 pa_papyrus.x1(), pa_papyrus.y0()),
1001                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1002                                                 pa_papyrus.x0(), pa_papyrus.y0()),
1003                                 };
1004
1005                                 if(j == 0)
1006                                 {
1007                                         for(u16 i=0; i<4; i++)
1008                                                 vertices[i].Pos.rotateXZBy(45);
1009                                 }
1010                                 else if(j == 1)
1011                                 {
1012                                         for(u16 i=0; i<4; i++)
1013                                                 vertices[i].Pos.rotateXZBy(-45);
1014                                 }
1015                                 else if(j == 2)
1016                                 {
1017                                         for(u16 i=0; i<4; i++)
1018                                                 vertices[i].Pos.rotateXZBy(135);
1019                                 }
1020                                 else if(j == 3)
1021                                 {
1022                                         for(u16 i=0; i<4; i++)
1023                                                 vertices[i].Pos.rotateXZBy(-135);
1024                                 }
1025
1026                                 for(u16 i=0; i<4; i++)
1027                                 {
1028                                         vertices[i].Pos *= 1.3;
1029                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1030                                 }
1031
1032                                 u16 indices[] = {0,1,2,2,3,0};
1033                                 // Add to mesh collector
1034                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1035                         }
1036                 }
1037                 else if(n.getContent() == CONTENT_RAIL)
1038                 {
1039                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1040                         video::SColor c = MapBlock_LightColor(255, l);
1041
1042                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1043                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1044
1045                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1046                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1047                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1048                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1049
1050                         if(n_minus_x.getContent() == CONTENT_RAIL)
1051                                 is_rail_x[0] = true;
1052                         if(n_plus_x.getContent() == CONTENT_RAIL)
1053                                 is_rail_x[1] = true;
1054                         if(n_minus_z.getContent() == CONTENT_RAIL)
1055                                 is_rail_z[0] = true;
1056                         if(n_plus_z.getContent() == CONTENT_RAIL)
1057                                 is_rail_z[1] = true;
1058
1059                         float d = (float)BS/16;
1060                         video::S3DVertex vertices[4] =
1061                         {
1062                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1063                                         0, 1),
1064                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1065                                         1, 1),
1066                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1067                                         1, 0),
1068                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1069                                         0, 0),
1070                         };
1071
1072                         video::SMaterial material_rail;
1073                         material_rail.setFlag(video::EMF_LIGHTING, false);
1074                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
1075                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1076                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1077                         material_rail.MaterialType
1078                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1079
1080                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1081
1082                         // Assign textures
1083                         if(adjacencies < 2)
1084                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1085                         else if(adjacencies == 2)
1086                         {
1087                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1088                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1089                                 else
1090                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_curved.png"));
1091                         }
1092                         else if(adjacencies == 3)
1093                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_t_junction.png"));
1094                         else if(adjacencies == 4)
1095                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_crossing.png"));
1096
1097                         // Rotate textures
1098                         int angle = 0;
1099
1100                         if(adjacencies == 1)
1101                         {
1102                                 if(is_rail_x[0] || is_rail_x[1])
1103                                         angle = 90;
1104                         }
1105                         else if(adjacencies == 2)
1106                         {
1107                                 if(is_rail_x[0] && is_rail_x[1])
1108                                         angle = 90;
1109                                 else if(is_rail_x[0] && is_rail_z[0])
1110                                         angle = 270;
1111                                 else if(is_rail_x[0] && is_rail_z[1])
1112                                         angle = 180;
1113                                 else if(is_rail_x[1] && is_rail_z[1])
1114                                         angle = 90;
1115                         }
1116                         else if(adjacencies == 3)
1117                         {
1118                                 if(!is_rail_x[0])
1119                                         angle=0;
1120                                 if(!is_rail_x[1])
1121                                         angle=180;
1122                                 if(!is_rail_z[0])
1123                                         angle=90;
1124                                 if(!is_rail_z[1])
1125                                         angle=270;
1126                         }
1127
1128                         if(angle != 0) {
1129                                 for(u16 i=0; i<4; i++)
1130                                         vertices[i].Pos.rotateXZBy(angle);
1131                         }
1132
1133                         for(s32 i=0; i<4; i++)
1134                         {
1135                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1136                         }
1137
1138                         u16 indices[] = {0,1,2,2,3,0};
1139                         collector.append(material_rail, vertices, 4, indices, 6);
1140                 }
1141                 else if (n.getContent() == CONTENT_LADDER) {
1142                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1143                         video::SColor c(255,l,l,l);
1144
1145                         float d = (float)BS/16;
1146
1147                         // Assume wall is at X+
1148                         video::S3DVertex vertices[4] =
1149                         {
1150                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
1151                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
1152                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
1153                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
1154                         };
1155
1156                         v3s16 dir = unpackDir(n.param2);
1157
1158                         for(s32 i=0; i<4; i++)
1159                         {
1160                                 if(dir == v3s16(1,0,0))
1161                                         vertices[i].Pos.rotateXZBy(0);
1162                                 if(dir == v3s16(-1,0,0))
1163                                         vertices[i].Pos.rotateXZBy(180);
1164                                 if(dir == v3s16(0,0,1))
1165                                         vertices[i].Pos.rotateXZBy(90);
1166                                 if(dir == v3s16(0,0,-1))
1167                                         vertices[i].Pos.rotateXZBy(-90);
1168                                 if(dir == v3s16(0,-1,0))
1169                                         vertices[i].Pos.rotateXYBy(-90);
1170                                 if(dir == v3s16(0,1,0))
1171                                         vertices[i].Pos.rotateXYBy(90);
1172
1173                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1174                         }
1175
1176                         video::SMaterial material_ladder;
1177                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1178                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, false);
1179                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1180                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1181                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1182                         material_ladder.setTexture(0, g_texturesource->getTextureRaw("ladder.png"));
1183
1184                         u16 indices[] = {0,1,2,2,3,0};
1185                         // Add to mesh collector
1186                         collector.append(material_ladder, vertices, 4, indices, 6);
1187                 }
1188         }
1189 }
1190 #endif
1191