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 Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser 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
  22 #include "main.h" // For g_settings
  23 #include "mapblock_mesh.h" // For MapBlock_LightColor() and MeshCollector
  24 #include "settings.h"
  25 #include "nodedef.h"
  26 #include "tile.h"
  27 #include "gamedef.h"
  28 #include "util/numeric.h"
  29 #include "util/serialize.h"
  30 #include "util/directiontables.h"
  31
  32 // Create a cuboid.
  33 //  collector - the MeshCollector for the resulting polygons
  34 //  box       - the position and size of the box
  35 //  tiles     - the tiles (materials) to use (for all 6 faces)
  36 //  tilecount - number of entries in tiles, 1<=tilecount<=6
  37 //  c         - vertex colour - used for all
  38 //  txc       - texture coordinates - this is a list of texture coordinates
  39 //              for the opposite corners of each face - therefore, there
  40 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  41 //              NULL to use the entire texture for each face. The order of
  42 //              the faces in the list is up-down-right-left-back-front
  43 //              (compatible with ContentFeatures). If you specified 0,0,1,1
  44 //              for each face, that would be the same as passing NULL.
  45 void makeCuboid(MeshCollector *collector, const aabb3f &box,
  46         const TileSpec *tiles, int tilecount,
  47         video::SColor &c, const f32* txc)
  48 {
  49         assert(tilecount >= 1 && tilecount <= 6);
  50
  51         v3f min = box.MinEdge;
  52         v3f max = box.MaxEdge;
  53
  54         if(txc == NULL)
  55         {
  56                 static const f32 txc_default[24] = {
  57                         0,0,1,1,
  58                         0,0,1,1,
  59                         0,0,1,1,
  60                         0,0,1,1,
  61                         0,0,1,1,
  62                         0,0,1,1
  63                 };
  64                 txc = txc_default;
  65         }
  66
  67         video::S3DVertex vertices[24] =
  68         {
  69                 // up
  70                 video::S3DVertex(min.X,max.Y,max.Z, 0,1,0, c, txc[0],txc[1]),
  71                 video::S3DVertex(max.X,max.Y,max.Z, 0,1,0, c, txc[2],txc[1]),
  72                 video::S3DVertex(max.X,max.Y,min.Z, 0,1,0, c, txc[2],txc[3]),
  73                 video::S3DVertex(min.X,max.Y,min.Z, 0,1,0, c, txc[0],txc[3]),
  74                 // down
  75                 video::S3DVertex(min.X,min.Y,min.Z, 0,-1,0, c, txc[4],txc[5]),
  76                 video::S3DVertex(max.X,min.Y,min.Z, 0,-1,0, c, txc[6],txc[5]),
  77                 video::S3DVertex(max.X,min.Y,max.Z, 0,-1,0, c, txc[6],txc[7]),
  78                 video::S3DVertex(min.X,min.Y,max.Z, 0,-1,0, c, txc[4],txc[7]),
  79                 // right
  80                 video::S3DVertex(max.X,max.Y,min.Z, 1,0,0, c, txc[ 8],txc[9]),
  81                 video::S3DVertex(max.X,max.Y,max.Z, 1,0,0, c, txc[10],txc[9]),
  82                 video::S3DVertex(max.X,min.Y,max.Z, 1,0,0, c, txc[10],txc[11]),
  83                 video::S3DVertex(max.X,min.Y,min.Z, 1,0,0, c, txc[ 8],txc[11]),
  84                 // left
  85                 video::S3DVertex(min.X,max.Y,max.Z, -1,0,0, c, txc[12],txc[13]),
  86                 video::S3DVertex(min.X,max.Y,min.Z, -1,0,0, c, txc[14],txc[13]),
  87                 video::S3DVertex(min.X,min.Y,min.Z, -1,0,0, c, txc[14],txc[15]),
  88                 video::S3DVertex(min.X,min.Y,max.Z, -1,0,0, c, txc[12],txc[15]),
  89                 // back
  90                 video::S3DVertex(max.X,max.Y,max.Z, 0,0,1, c, txc[16],txc[17]),
  91                 video::S3DVertex(min.X,max.Y,max.Z, 0,0,1, c, txc[18],txc[17]),
  92                 video::S3DVertex(min.X,min.Y,max.Z, 0,0,1, c, txc[18],txc[19]),
  93                 video::S3DVertex(max.X,min.Y,max.Z, 0,0,1, c, txc[16],txc[19]),
  94                 // front
  95                 video::S3DVertex(min.X,max.Y,min.Z, 0,0,-1, c, txc[20],txc[21]),
  96                 video::S3DVertex(max.X,max.Y,min.Z, 0,0,-1, c, txc[22],txc[21]),
  97                 video::S3DVertex(max.X,min.Y,min.Z, 0,0,-1, c, txc[22],txc[23]),
  98                 video::S3DVertex(min.X,min.Y,min.Z, 0,0,-1, c, txc[20],txc[23]),
  99         };
 100
 101         for(s32 j=0; j<24; j++)
 102         {
 103                 int tileindex = MYMIN(j/4, tilecount-1);
 104                 vertices[j].TCoords *= tiles[tileindex].texture.size;
 105                 vertices[j].TCoords += tiles[tileindex].texture.pos;
 106         }
 107
 108         u16 indices[] = {0,1,2,2,3,0};
 109
 110         // Add to mesh collector
 111         for(s32 j=0; j<24; j+=4)
 112         {
 113                 int tileindex = MYMIN(j/4, tilecount-1);
 114                 collector->append(tiles[tileindex],
 115                                 vertices+j, 4, indices, 6);
 116         }
 117 }
 118
 119 void mapblock_mesh_generate_special(MeshMakeData *data,
 120                 MeshCollector &collector)
 121 {
 122         INodeDefManager *nodedef = data->m_gamedef->ndef();
 123
 124         // 0ms
 125         //TimeTaker timer("mapblock_mesh_generate_special()");
 126
 127         /*
 128                 Some settings
 129         */
 130         bool new_style_water = g_settings->getBool("new_style_water");
 131
 132         float node_liquid_level = 1.0;
 133         if(new_style_water)
 134                 node_liquid_level = 0.85;
 135
 136         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 137
 138         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 139         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 140         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 141         {
 142                 v3s16 p(x,y,z);
 143
 144                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 145                 const ContentFeatures &f = nodedef->get(n);
 146
 147                 // Only solidness=0 stuff is drawn here
 148                 if(f.solidness != 0)
 149                         continue;
 150
 151                 switch(f.drawtype){
 152                 default:
 153                         infostream<<"Got "<<f.drawtype<<std::endl;
 154                         assert(0);
 155                         break;
 156                 case NDT_AIRLIKE:
 157                         break;
 158                 case NDT_LIQUID:
 159                 {
 160                         /*
 161                                 Add water sources to mesh if using new style
 162                         */
 163                         TileSpec tile_liquid = f.special_tiles[0];
 164                         AtlasPointer &pa_liquid = tile_liquid.texture;
 165
 166                         bool top_is_air = false;
 167                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 168                         if(n.getContent() == CONTENT_AIR)
 169                                 top_is_air = true;
 170
 171                         if(top_is_air == false)
 172                                 continue;
 173
 174                         u16 l = getInteriorLight(n, 0, data);
 175                         video::SColor c = MapBlock_LightColor(f.alpha, l);
 176
 177                         video::S3DVertex vertices[4] =
 178                         {
 179                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 180                                                 pa_liquid.x0(), pa_liquid.y1()),
 181                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 182                                                 pa_liquid.x1(), pa_liquid.y1()),
 183                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 184                                                 pa_liquid.x1(), pa_liquid.y0()),
 185                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 186                                                 pa_liquid.x0(), pa_liquid.y0()),
 187                         };
 188
 189                         v3f offset(p.X, p.Y + (-0.5+node_liquid_level)*BS, p.Z);
 190                         for(s32 i=0; i<4; i++)
 191                         {
 192                                 vertices[i].Pos += offset;
 193                         }
 194
 195                         u16 indices[] = {0,1,2,2,3,0};
 196                         // Add to mesh collector
 197                         collector.append(tile_liquid, vertices, 4, indices, 6);
 198                 break;}
 199                 case NDT_FLOWINGLIQUID:
 200                 {
 201                         /*
 202                                 Add flowing liquid to mesh
 203                         */
 204                         TileSpec tile_liquid = f.special_tiles[0];
 205                         TileSpec tile_liquid_bfculled = f.special_tiles[1];
 206                         AtlasPointer &pa_liquid = tile_liquid.texture;
 207
 208                         bool top_is_same_liquid = false;
 209                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 210                         content_t c_flowing = nodedef->getId(f.liquid_alternative_flowing);
 211                         content_t c_source = nodedef->getId(f.liquid_alternative_source);
 212                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 213                                 top_is_same_liquid = true;
 214
 215                         u16 l = 0;
 216                         // If this liquid emits light and doesn't contain light, draw
 217                         // it at what it emits, for an increased effect
 218                         u8 light_source = nodedef->get(n).light_source;
 219                         if(light_source != 0){
 220                                 //l = decode_light(undiminish_light(light_source));
 221                                 l = decode_light(light_source);
 222                                 l = l | (l<<8);
 223                         }
 224                         // Use the light of the node on top if possible
 225                         else if(nodedef->get(ntop).param_type == CPT_LIGHT)
 226                                 l = getInteriorLight(ntop, 0, data);
 227                         // Otherwise use the light of this node (the liquid)
 228                         else
 229                                 l = getInteriorLight(n, 0, data);
 230                         video::SColor c = MapBlock_LightColor(f.alpha, l);
 231
 232                         // Neighbor liquid levels (key = relative position)
 233                         // Includes current node
 234                         core::map<v3s16, f32> neighbor_levels;
 235                         core::map<v3s16, content_t> neighbor_contents;
 236                         core::map<v3s16, u8> neighbor_flags;
 237                         const u8 neighborflag_top_is_same_liquid = 0x01;
 238                         v3s16 neighbor_dirs[9] = {
 239                                 v3s16(0,0,0),
 240                                 v3s16(0,0,1),
 241                                 v3s16(0,0,-1),
 242                                 v3s16(1,0,0),
 243                                 v3s16(-1,0,0),
 244                                 v3s16(1,0,1),
 245                                 v3s16(-1,0,-1),
 246                                 v3s16(1,0,-1),
 247                                 v3s16(-1,0,1),
 248                         };
 249                         for(u32 i=0; i<9; i++)
 250                         {
 251                                 content_t content = CONTENT_AIR;
 252                                 float level = -0.5 * BS;
 253                                 u8 flags = 0;
 254                                 // Check neighbor
 255                                 v3s16 p2 = p + neighbor_dirs[i];
 256                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 257                                 if(n2.getContent() != CONTENT_IGNORE)
 258                                 {
 259                                         content = n2.getContent();
 260
 261                                         if(n2.getContent() == c_source)
 262                                                 level = (-0.5+node_liquid_level) * BS;
 263                                         else if(n2.getContent() == c_flowing)
 264                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 265                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 266
 267                                         // Check node above neighbor.
 268                                         // NOTE: This doesn't get executed if neighbor
 269                                         //       doesn't exist
 270                                         p2.Y += 1;
 271                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 272                                         if(n2.getContent() == c_source ||
 273                                                         n2.getContent() == c_flowing)
 274                                                 flags |= neighborflag_top_is_same_liquid;
 275                                 }
 276
 277                                 neighbor_levels.insert(neighbor_dirs[i], level);
 278                                 neighbor_contents.insert(neighbor_dirs[i], content);
 279                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 280                         }
 281
 282                         // Corner heights (average between four liquids)
 283                         f32 corner_levels[4];
 284
 285                         v3s16 halfdirs[4] = {
 286                                 v3s16(0,0,0),
 287                                 v3s16(1,0,0),
 288                                 v3s16(1,0,1),
 289                                 v3s16(0,0,1),
 290                         };
 291                         for(u32 i=0; i<4; i++)
 292                         {
 293                                 v3s16 cornerdir = halfdirs[i];
 294                                 float cornerlevel = 0;
 295                                 u32 valid_count = 0;
 296                                 u32 air_count = 0;
 297                                 for(u32 j=0; j<4; j++)
 298                                 {
 299                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 300                                         content_t content = neighbor_contents[neighbordir];
 301                                         // If top is liquid, draw starting from top of node
 302                                         if(neighbor_flags[neighbordir] &
 303                                                         neighborflag_top_is_same_liquid)
 304                                         {
 305                                                 cornerlevel = 0.5*BS;
 306                                                 valid_count = 1;
 307                                                 break;
 308                                         }
 309                                         // Source is always the same height
 310                                         else if(content == c_source)
 311                                         {
 312                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 313                                                 valid_count = 1;
 314                                                 break;
 315                                         }
 316                                         // Flowing liquid has level information
 317                                         else if(content == c_flowing)
 318                                         {
 319                                                 cornerlevel += neighbor_levels[neighbordir];
 320                                                 valid_count++;
 321                                         }
 322                                         else if(content == CONTENT_AIR)
 323                                         {
 324                                                 air_count++;
 325                                         }
 326                                 }
 327                                 if(air_count >= 2)
 328                                         cornerlevel = -0.5*BS;
 329                                 else if(valid_count > 0)
 330                                         cornerlevel /= valid_count;
 331                                 corner_levels[i] = cornerlevel;
 332                         }
 333
 334                         /*
 335                                 Generate sides
 336                         */
 337
 338                         v3s16 side_dirs[4] = {
 339                                 v3s16(1,0,0),
 340                                 v3s16(-1,0,0),
 341                                 v3s16(0,0,1),
 342                                 v3s16(0,0,-1),
 343                         };
 344                         s16 side_corners[4][2] = {
 345                                 {1, 2},
 346                                 {3, 0},
 347                                 {2, 3},
 348                                 {0, 1},
 349                         };
 350                         for(u32 i=0; i<4; i++)
 351                         {
 352                                 v3s16 dir = side_dirs[i];
 353
 354                                 /*
 355                                         If our topside is liquid and neighbor's topside
 356                                         is liquid, don't draw side face
 357                                 */
 358                                 if(top_is_same_liquid &&
 359                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 360                                         continue;
 361
 362                                 content_t neighbor_content = neighbor_contents[dir];
 363                                 const ContentFeatures &n_feat = nodedef->get(neighbor_content);
 364
 365                                 // Don't draw face if neighbor is blocking the view
 366                                 if(n_feat.solidness == 2)
 367                                         continue;
 368
 369                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 370                                                 || neighbor_content == c_flowing);
 371
 372                                 // Don't draw any faces if neighbor same is liquid and top is
 373                                 // same liquid
 374                                 if(neighbor_is_same_liquid == true
 375                                                 && top_is_same_liquid == false)
 376                                         continue;
 377
 378                                 // Use backface culled material if neighbor doesn't have a
 379                                 // solidness of 0
 380                                 const TileSpec *current_tile = &tile_liquid;
 381                                 if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
 382                                         current_tile = &tile_liquid_bfculled;
 383
 384                                 video::S3DVertex vertices[4] =
 385                                 {
 386                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 387                                                         pa_liquid.x0(), pa_liquid.y1()),
 388                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 389                                                         pa_liquid.x1(), pa_liquid.y1()),
 390                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 391                                                         pa_liquid.x1(), pa_liquid.y0()),
 392                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 393                                                         pa_liquid.x0(), pa_liquid.y0()),
 394                                 };
 395
 396                                 /*
 397                                         If our topside is liquid, set upper border of face
 398                                         at upper border of node
 399                                 */
 400                                 if(top_is_same_liquid)
 401                                 {
 402                                         vertices[2].Pos.Y = 0.5*BS;
 403                                         vertices[3].Pos.Y = 0.5*BS;
 404                                 }
 405                                 /*
 406                                         Otherwise upper position of face is corner levels
 407                                 */
 408                                 else
 409                                 {
 410                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 411                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 412                                 }
 413
 414                                 /*
 415                                         If neighbor is liquid, lower border of face is corner
 416                                         liquid levels
 417                                 */
 418                                 if(neighbor_is_same_liquid)
 419                                 {
 420                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 421                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 422                                 }
 423                                 /*
 424                                         If neighbor is not liquid, lower border of face is
 425                                         lower border of node
 426                                 */
 427                                 else
 428                                 {
 429                                         vertices[0].Pos.Y = -0.5*BS;
 430                                         vertices[1].Pos.Y = -0.5*BS;
 431                                 }
 432
 433                                 for(s32 j=0; j<4; j++)
 434                                 {
 435                                         if(dir == v3s16(0,0,1))
 436                                                 vertices[j].Pos.rotateXZBy(0);
 437                                         if(dir == v3s16(0,0,-1))
 438                                                 vertices[j].Pos.rotateXZBy(180);
 439                                         if(dir == v3s16(-1,0,0))
 440                                                 vertices[j].Pos.rotateXZBy(90);
 441                                         if(dir == v3s16(1,0,-0))
 442                                                 vertices[j].Pos.rotateXZBy(-90);
 443
 444                                         // Do this to not cause glitches when two liquids are
 445                                         // side-by-side
 446                                         /*if(neighbor_is_same_liquid == false){
 447                                                 vertices[j].Pos.X *= 0.98;
 448                                                 vertices[j].Pos.Z *= 0.98;
 449                                         }*/
 450
 451                                         vertices[j].Pos += intToFloat(p, BS);
 452                                 }
 453
 454                                 u16 indices[] = {0,1,2,2,3,0};
 455                                 // Add to mesh collector
 456                                 collector.append(*current_tile, vertices, 4, indices, 6);
 457                         }
 458
 459                         /*
 460                                 Generate top side, if appropriate
 461                         */
 462
 463                         if(top_is_same_liquid == false)
 464                         {
 465                                 video::S3DVertex vertices[4] =
 466                                 {
 467                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 468                                                         pa_liquid.x0(), pa_liquid.y1()),
 469                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 470                                                         pa_liquid.x1(), pa_liquid.y1()),
 471                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 472                                                         pa_liquid.x1(), pa_liquid.y0()),
 473                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 474                                                         pa_liquid.x0(), pa_liquid.y0()),
 475                                 };
 476
 477                                 // To get backface culling right, the vertices need to go
 478                                 // clockwise around the front of the face. And we happened to
 479                                 // calculate corner levels in exact reverse order.
 480                                 s32 corner_resolve[4] = {3,2,1,0};
 481
 482                                 for(s32 i=0; i<4; i++)
 483                                 {
 484                                         //vertices[i].Pos.Y += liquid_level;
 485                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 486                                         s32 j = corner_resolve[i];
 487                                         vertices[i].Pos.Y += corner_levels[j];
 488                                         vertices[i].Pos += intToFloat(p, BS);
 489                                 }
 490
 491                                 // Default downwards-flowing texture animation goes from
 492                                 // -Z towards +Z, thus the direction is +Z.
 493                                 // Rotate texture to make animation go in flow direction
 494                                 // Positive if liquid moves towards +Z
 495                                 int dz = (corner_levels[side_corners[2][0]] +
 496                                                 corner_levels[side_corners[2][1]] <
 497                                                 corner_levels[side_corners[3][0]] +
 498                                                 corner_levels[side_corners[3][1]]);
 499                                 // Positive if liquid moves towards +X
 500                                 int dx = (corner_levels[side_corners[0][0]] +
 501                                                 corner_levels[side_corners[0][1]] <
 502                                                 corner_levels[side_corners[1][0]] +
 503                                                 corner_levels[side_corners[1][1]]);
 504                                 // -X
 505                                 if(-dx >= abs(dz))
 506                                 {
 507                                         v2f t = vertices[0].TCoords;
 508                                         vertices[0].TCoords = vertices[1].TCoords;
 509                                         vertices[1].TCoords = vertices[2].TCoords;
 510                                         vertices[2].TCoords = vertices[3].TCoords;
 511                                         vertices[3].TCoords = t;
 512                                 }
 513                                 // +X
 514                                 if(dx >= abs(dz))
 515                                 {
 516                                         v2f t = vertices[0].TCoords;
 517                                         vertices[0].TCoords = vertices[3].TCoords;
 518                                         vertices[3].TCoords = vertices[2].TCoords;
 519                                         vertices[2].TCoords = vertices[1].TCoords;
 520                                         vertices[1].TCoords = t;
 521                                 }
 522                                 // -Z
 523                                 if(-dz >= abs(dx))
 524                                 {
 525                                         v2f t = vertices[0].TCoords;
 526                                         vertices[0].TCoords = vertices[3].TCoords;
 527                                         vertices[3].TCoords = vertices[2].TCoords;
 528                                         vertices[2].TCoords = vertices[1].TCoords;
 529                                         vertices[1].TCoords = t;
 530                                         t = vertices[0].TCoords;
 531                                         vertices[0].TCoords = vertices[3].TCoords;
 532                                         vertices[3].TCoords = vertices[2].TCoords;
 533                                         vertices[2].TCoords = vertices[1].TCoords;
 534                                         vertices[1].TCoords = t;
 535                                 }
 536
 537                                 u16 indices[] = {0,1,2,2,3,0};
 538                                 // Add to mesh collector
 539                                 collector.append(tile_liquid, vertices, 4, indices, 6);
 540                         }
 541                 break;}
 542                 case NDT_GLASSLIKE:
 543                 {
 544                         TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
 545                         AtlasPointer ap = tile.texture;
 546
 547                         u16 l = getInteriorLight(n, 1, data);
 548                         video::SColor c = MapBlock_LightColor(255, l);
 549
 550                         for(u32 j=0; j<6; j++)
 551                         {
 552                                 // Check this neighbor
 553                                 v3s16 n2p = blockpos_nodes + p + g_6dirs[j];
 554                                 MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
 555                                 // Don't make face if neighbor is of same type
 556                                 if(n2.getContent() == n.getContent())
 557                                         continue;
 558
 559                                 // The face at Z+
 560                                 video::S3DVertex vertices[4] =
 561                                 {
 562                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 563                                                 ap.x0(), ap.y1()),
 564                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 565                                                 ap.x1(), ap.y1()),
 566                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 567                                                 ap.x1(), ap.y0()),
 568                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 569                                                 ap.x0(), ap.y0()),
 570                                 };
 571
 572                                 // Rotations in the g_6dirs format
 573                                 if(j == 0) // Z+
 574                                         for(u16 i=0; i<4; i++)
 575                                                 vertices[i].Pos.rotateXZBy(0);
 576                                 else if(j == 1) // Y+
 577                                         for(u16 i=0; i<4; i++)
 578                                                 vertices[i].Pos.rotateYZBy(-90);
 579                                 else if(j == 2) // X+
 580                                         for(u16 i=0; i<4; i++)
 581                                                 vertices[i].Pos.rotateXZBy(-90);
 582                                 else if(j == 3) // Z-
 583                                         for(u16 i=0; i<4; i++)
 584                                                 vertices[i].Pos.rotateXZBy(180);
 585                                 else if(j == 4) // Y-
 586                                         for(u16 i=0; i<4; i++)
 587                                                 vertices[i].Pos.rotateYZBy(90);
 588                                 else if(j == 5) // X-
 589                                         for(u16 i=0; i<4; i++)
 590                                                 vertices[i].Pos.rotateXZBy(90);
 591
 592                                 for(u16 i=0; i<4; i++){
 593                                         vertices[i].Pos += intToFloat(p, BS);
 594                                 }
 595
 596                                 u16 indices[] = {0,1,2,2,3,0};
 597                                 // Add to mesh collector
 598                                 collector.append(tile, vertices, 4, indices, 6);
 599                         }
 600                 break;}
 601                 case NDT_ALLFACES:
 602                 {
 603                         TileSpec tile_leaves = getNodeTile(n, p,
 604                                         v3s16(0,0,0), data);
 605                         AtlasPointer pa_leaves = tile_leaves.texture;
 606
 607                         u16 l = getInteriorLight(n, 1, data);
 608                         video::SColor c = MapBlock_LightColor(255, l);
 609
 610                         v3f pos = intToFloat(p, BS);
 611                         aabb3f box(-BS/2,-BS/2,-BS/2,BS/2,BS/2,BS/2);
 612                         box.MinEdge += pos;
 613                         box.MaxEdge += pos;
 614                         makeCuboid(&collector, box, &tile_leaves, 1, c, NULL);
 615                 break;}
 616                 case NDT_ALLFACES_OPTIONAL:
 617                         // This is always pre-converted to something else
 618                         assert(0);
 619                         break;
 620                 case NDT_TORCHLIKE:
 621                 {
 622                         v3s16 dir = n.getWallMountedDir(nodedef);
 623
 624                         u8 tileindex = 0;
 625                         if(dir == v3s16(0,-1,0)){
 626                                 tileindex = 0; // floor
 627                         } else if(dir == v3s16(0,1,0)){
 628                                 tileindex = 1; // ceiling
 629                         // For backwards compatibility
 630                         } else if(dir == v3s16(0,0,0)){
 631                                 tileindex = 0; // floor
 632                         } else {
 633                                 tileindex = 2; // side
 634                         }
 635
 636                         TileSpec tile = getNodeTileN(n, p, tileindex, data);
 637                         tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
 638                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
 639
 640                         AtlasPointer ap = tile.texture;
 641
 642                         video::SColor c(255,255,255,255);
 643
 644                         // Wall at X+ of node
 645                         video::S3DVertex vertices[4] =
 646                         {
 647                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 648                                                 ap.x0(), ap.y1()),
 649                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 650                                                 ap.x1(), ap.y1()),
 651                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 652                                                 ap.x1(), ap.y0()),
 653                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 654                                                 ap.x0(), ap.y0()),
 655                         };
 656
 657                         for(s32 i=0; i<4; i++)
 658                         {
 659                                 if(dir == v3s16(1,0,0))
 660                                         vertices[i].Pos.rotateXZBy(0);
 661                                 if(dir == v3s16(-1,0,0))
 662                                         vertices[i].Pos.rotateXZBy(180);
 663                                 if(dir == v3s16(0,0,1))
 664                                         vertices[i].Pos.rotateXZBy(90);
 665                                 if(dir == v3s16(0,0,-1))
 666                                         vertices[i].Pos.rotateXZBy(-90);
 667                                 if(dir == v3s16(0,-1,0))
 668                                         vertices[i].Pos.rotateXZBy(45);
 669                                 if(dir == v3s16(0,1,0))
 670                                         vertices[i].Pos.rotateXZBy(-45);
 671
 672                                 vertices[i].Pos += intToFloat(p, BS);
 673                         }
 674
 675                         u16 indices[] = {0,1,2,2,3,0};
 676                         // Add to mesh collector
 677                         collector.append(tile, vertices, 4, indices, 6);
 678                 break;}
 679                 case NDT_SIGNLIKE:
 680                 {
 681                         TileSpec tile = getNodeTileN(n, p, 0, data);
 682                         tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
 683                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
 684                         AtlasPointer ap = tile.texture;
 685
 686                         u16 l = getInteriorLight(n, 0, data);
 687                         video::SColor c = MapBlock_LightColor(255, l);
 688
 689                         float d = (float)BS/16;
 690                         // Wall at X+ of node
 691                         video::S3DVertex vertices[4] =
 692                         {
 693                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
 694                                                 ap.x0(), ap.y0()),
 695                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
 696                                                 ap.x1(), ap.y0()),
 697                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
 698                                                 ap.x1(), ap.y1()),
 699                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
 700                                                 ap.x0(), ap.y1()),
 701                         };
 702
 703                         v3s16 dir = n.getWallMountedDir(nodedef);
 704
 705                         for(s32 i=0; i<4; i++)
 706                         {
 707                                 if(dir == v3s16(1,0,0))
 708                                         vertices[i].Pos.rotateXZBy(0);
 709                                 if(dir == v3s16(-1,0,0))
 710                                         vertices[i].Pos.rotateXZBy(180);
 711                                 if(dir == v3s16(0,0,1))
 712                                         vertices[i].Pos.rotateXZBy(90);
 713                                 if(dir == v3s16(0,0,-1))
 714                                         vertices[i].Pos.rotateXZBy(-90);
 715                                 if(dir == v3s16(0,-1,0))
 716                                         vertices[i].Pos.rotateXYBy(-90);
 717                                 if(dir == v3s16(0,1,0))
 718                                         vertices[i].Pos.rotateXYBy(90);
 719
 720                                 vertices[i].Pos += intToFloat(p, BS);
 721                         }
 722
 723                         u16 indices[] = {0,1,2,2,3,0};
 724                         // Add to mesh collector
 725                         collector.append(tile, vertices, 4, indices, 6);
 726                 break;}
 727                 case NDT_PLANTLIKE:
 728                 {
 729                         TileSpec tile = getNodeTileN(n, p, 0, data);
 730                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
 731                         AtlasPointer ap = tile.texture;
 732
 733                         u16 l = getInteriorLight(n, 1, data);
 734                         video::SColor c = MapBlock_LightColor(255, l);
 735
 736                         for(u32 j=0; j<4; j++)
 737                         {
 738                                 video::S3DVertex vertices[4] =
 739                                 {
 740                                         video::S3DVertex(-BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
 741                                                 ap.x0(), ap.y1()),
 742                                         video::S3DVertex( BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
 743                                                 ap.x1(), ap.y1()),
 744                                         video::S3DVertex( BS/2*f.visual_scale,
 745                                                 -BS/2 + f.visual_scale*BS,0, 0,0,0, c,
 746                                                 ap.x1(), ap.y0()),
 747                                         video::S3DVertex(-BS/2*f.visual_scale,
 748                                                 -BS/2 + f.visual_scale*BS,0, 0,0,0, c,
 749                                                 ap.x0(), ap.y0()),
 750                                 };
 751
 752                                 if(j == 0)
 753                                 {
 754                                         for(u16 i=0; i<4; i++)
 755                                                 vertices[i].Pos.rotateXZBy(45);
 756                                 }
 757                                 else if(j == 1)
 758                                 {
 759                                         for(u16 i=0; i<4; i++)
 760                                                 vertices[i].Pos.rotateXZBy(-45);
 761                                 }
 762                                 else if(j == 2)
 763                                 {
 764                                         for(u16 i=0; i<4; i++)
 765                                                 vertices[i].Pos.rotateXZBy(135);
 766                                 }
 767                                 else if(j == 3)
 768                                 {
 769                                         for(u16 i=0; i<4; i++)
 770                                                 vertices[i].Pos.rotateXZBy(-135);
 771                                 }
 772
 773                                 for(u16 i=0; i<4; i++)
 774                                 {
 775                                         vertices[i].Pos *= f.visual_scale;
 776                                         vertices[i].Pos += intToFloat(p, BS);
 777                                 }
 778
 779                                 u16 indices[] = {0,1,2,2,3,0};
 780                                 // Add to mesh collector
 781                                 collector.append(tile, vertices, 4, indices, 6);
 782                         }
 783                 break;}
 784                 case NDT_FENCELIKE:
 785                 {
 786                         TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
 787                         TileSpec tile_nocrack = tile;
 788                         tile_nocrack.material_flags &= ~MATERIAL_FLAG_CRACK;
 789
 790                         // A hack to put wood the right way around in the posts
 791                         ITextureSource *tsrc = data->m_gamedef->tsrc();
 792                         TileSpec tile_rot = tile;
 793                         tile_rot.texture = tsrc->getTexture(tsrc->getTextureName(
 794                                         tile.texture.id) + "^[transformR90");
 795
 796                         u16 l = getInteriorLight(n, 1, data);
 797                         video::SColor c = MapBlock_LightColor(255, l);
 798
 799                         const f32 post_rad=(f32)BS/8;
 800                         const f32 bar_rad=(f32)BS/16;
 801                         const f32 bar_len=(f32)(BS/2)-post_rad;
 802
 803                         v3f pos = intToFloat(p, BS);
 804
 805                         // The post - always present
 806                         aabb3f post(-post_rad,-BS/2,-post_rad,post_rad,BS/2,post_rad);
 807                         post.MinEdge += pos;
 808                         post.MaxEdge += pos;
 809                         f32 postuv[24]={
 810                                         6/16.,6/16.,10/16.,10/16.,
 811                                         6/16.,6/16.,10/16.,10/16.,
 812                                         0/16.,0,4/16.,1,
 813                                         4/16.,0,8/16.,1,
 814                                         8/16.,0,12/16.,1,
 815                                         12/16.,0,16/16.,1};
 816                         makeCuboid(&collector, post, &tile_rot, 1, c, postuv);
 817
 818                         // Now a section of fence, +X, if there's a post there
 819                         v3s16 p2 = p;
 820                         p2.X++;
 821                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 822                         const ContentFeatures *f2 = &nodedef->get(n2);
 823                         if(f2->drawtype == NDT_FENCELIKE)
 824                         {
 825                                 aabb3f bar(-bar_len+BS/2,-bar_rad+BS/4,-bar_rad,
 826                                                 bar_len+BS/2,bar_rad+BS/4,bar_rad);
 827                                 bar.MinEdge += pos;
 828                                 bar.MaxEdge += pos;
 829                                 f32 xrailuv[24]={
 830                                         0/16.,2/16.,16/16.,4/16.,
 831                                         0/16.,4/16.,16/16.,6/16.,
 832                                         6/16.,6/16.,8/16.,8/16.,
 833                                         10/16.,10/16.,12/16.,12/16.,
 834                                         0/16.,8/16.,16/16.,10/16.,
 835                                         0/16.,14/16.,16/16.,16/16.};
 836                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
 837                                                 c, xrailuv);
 838                                 bar.MinEdge.Y -= BS/2;
 839                                 bar.MaxEdge.Y -= BS/2;
 840                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
 841                                                 c, xrailuv);
 842                         }
 843
 844                         // Now a section of fence, +Z, if there's a post there
 845                         p2 = p;
 846                         p2.Z++;
 847                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 848                         f2 = &nodedef->get(n2);
 849                         if(f2->drawtype == NDT_FENCELIKE)
 850                         {
 851                                 aabb3f bar(-bar_rad,-bar_rad+BS/4,-bar_len+BS/2,
 852                                                 bar_rad,bar_rad+BS/4,bar_len+BS/2);
 853                                 bar.MinEdge += pos;
 854                                 bar.MaxEdge += pos;
 855                                 f32 zrailuv[24]={
 856                                         3/16.,1/16.,5/16.,5/16., // cannot rotate; stretch
 857                                         4/16.,1/16.,6/16.,5/16., // for wood texture instead
 858                                         0/16.,9/16.,16/16.,11/16.,
 859                                         0/16.,6/16.,16/16.,8/16.,
 860                                         6/16.,6/16.,8/16.,8/16.,
 861                                         10/16.,10/16.,12/16.,12/16.};
 862                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
 863                                                 c, zrailuv);
 864                                 bar.MinEdge.Y -= BS/2;
 865                                 bar.MaxEdge.Y -= BS/2;
 866                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
 867                                                 c, zrailuv);
 868                         }
 869                 break;}
 870                 case NDT_RAILLIKE:
 871                 {
 872                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
 873                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
 874
 875                         bool is_rail_z_minus_y [] = { false, false };  /* z-1, z+1; y-1 */
 876                         bool is_rail_x_minus_y [] = { false, false };  /* x-1, z+1; y-1 */
 877                         bool is_rail_z_plus_y [] = { false, false };  /* z-1, z+1; y+1 */
 878                         bool is_rail_x_plus_y [] = { false, false };  /* x-1, x+1; y+1 */
 879
 880                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
 881                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
 882                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
 883                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
 884                         MapNode n_plus_x_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1, y+1, z));
 885                         MapNode n_plus_x_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1, y-1, z));
 886                         MapNode n_minus_x_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1, y+1, z));
 887                         MapNode n_minus_x_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1, y-1, z));
 888                         MapNode n_plus_z_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y+1, z+1));
 889                         MapNode n_minus_z_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y+1, z-1));
 890                         MapNode n_plus_z_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y-1, z+1));
 891                         MapNode n_minus_z_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y-1, z-1));
 892
 893                         content_t thiscontent = n.getContent();
 894                         if(n_minus_x.getContent() == thiscontent)
 895                                 is_rail_x[0] = true;
 896                         if (n_minus_x_minus_y.getContent() == thiscontent)
 897                                 is_rail_x_minus_y[0] = true;
 898                         if(n_minus_x_plus_y.getContent() == thiscontent)
 899                                 is_rail_x_plus_y[0] = true;
 900
 901                         if(n_plus_x.getContent() == thiscontent)
 902                                 is_rail_x[1] = true;
 903                         if (n_plus_x_minus_y.getContent() == thiscontent)
 904                                 is_rail_x_minus_y[1] = true;
 905                         if(n_plus_x_plus_y.getContent() == thiscontent)
 906                                 is_rail_x_plus_y[1] = true;
 907
 908                         if(n_minus_z.getContent() == thiscontent)
 909                                 is_rail_z[0] = true;
 910                         if (n_minus_z_minus_y.getContent() == thiscontent)
 911                                 is_rail_z_minus_y[0] = true;
 912                         if(n_minus_z_plus_y.getContent() == thiscontent)
 913                                 is_rail_z_plus_y[0] = true;
 914
 915                         if(n_plus_z.getContent() == thiscontent)
 916                                 is_rail_z[1] = true;
 917                         if (n_plus_z_minus_y.getContent() == thiscontent)
 918                                 is_rail_z_minus_y[1] = true;
 919                         if(n_plus_z_plus_y.getContent() == thiscontent)
 920                                 is_rail_z_plus_y[1] = true;
 921
 922                         bool is_rail_x_all[] = {false, false};
 923                         bool is_rail_z_all[] = {false, false};
 924                         is_rail_x_all[0]=is_rail_x[0] || is_rail_x_minus_y[0] || is_rail_x_plus_y[0];
 925                         is_rail_x_all[1]=is_rail_x[1] || is_rail_x_minus_y[1] || is_rail_x_plus_y[1];
 926                         is_rail_z_all[0]=is_rail_z[0] || is_rail_z_minus_y[0] || is_rail_z_plus_y[0];
 927                         is_rail_z_all[1]=is_rail_z[1] || is_rail_z_minus_y[1] || is_rail_z_plus_y[1];
 928
 929                         // reasonable default, flat straight unrotated rail
 930                         bool is_straight = true;
 931                         int adjacencies = 0;
 932                         int angle = 0;
 933                         u8 tileindex = 0;
 934
 935                         // check for sloped rail
 936                         if (is_rail_x_plus_y[0] || is_rail_x_plus_y[1] || is_rail_z_plus_y[0] || is_rail_z_plus_y[1])
 937                         {
 938                                 adjacencies = 5; //5 means sloped
 939                                 is_straight = true; // sloped is always straight
 940                         }
 941                         else
 942                         {
 943                                 // is really straight, rails on both sides
 944                                 is_straight = (is_rail_x_all[0] && is_rail_x_all[1]) || (is_rail_z_all[0] && is_rail_z_all[1]);
 945                                 adjacencies = is_rail_x_all[0] + is_rail_x_all[1] + is_rail_z_all[0] + is_rail_z_all[1];
 946                         }
 947
 948                         switch (adjacencies) {
 949                         case 1:
 950                                 if(is_rail_x_all[0] || is_rail_x_all[1])
 951                                         angle = 90;
 952                                 break;
 953                         case 2:
 954                                 if(!is_straight)
 955                                         tileindex = 1; // curved
 956                                 if(is_rail_x_all[0] && is_rail_x_all[1])
 957                                         angle = 90;
 958                                 if(is_rail_z_all[0] && is_rail_z_all[1]){
 959                                         if (n_minus_z_plus_y.getContent() == thiscontent) angle = 180;
 960                                 }
 961                                 else if(is_rail_x_all[0] && is_rail_z_all[0])
 962                                         angle = 270;
 963                                 else if(is_rail_x_all[0] && is_rail_z_all[1])
 964                                         angle = 180;
 965                                 else if(is_rail_x_all[1] && is_rail_z_all[1])
 966                                         angle = 90;
 967                                 break;
 968                         case 3:
 969                                 // here is where the potential to 'switch' a junction is, but not implemented at present
 970                                 tileindex = 2; // t-junction
 971                                 if(!is_rail_x_all[1])
 972                                         angle=180;
 973                                 if(!is_rail_z_all[0])
 974                                         angle=90;
 975                                 if(!is_rail_z_all[1])
 976                                         angle=270;
 977                                 break;
 978                         case 4:
 979                                 tileindex = 3; // crossing
 980                                 break;
 981                         case 5: //sloped
 982                                 if(is_rail_z_plus_y[0])
 983                                         angle = 180;
 984                                 if(is_rail_x_plus_y[0])
 985                                         angle = 90;
 986                                 if(is_rail_x_plus_y[1])
 987                                         angle = -90;
 988                                 break;
 989                         default:
 990                                 break;
 991                         }
 992
 993                         TileSpec tile = getNodeTileN(n, p, tileindex, data);
 994                         tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
 995                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
 996
 997                         AtlasPointer ap = tile.texture;
 998
 999                         u16 l = getInteriorLight(n, 0, data);
1000                         video::SColor c = MapBlock_LightColor(255, l);
1001
1002                         float d = (float)BS/64;
1003
1004                         char g=-1;
1005                         if (is_rail_x_plus_y[0] || is_rail_x_plus_y[1] || is_rail_z_plus_y[0] || is_rail_z_plus_y[1])
1006                                 g=1; //Object is at a slope
1007
1008                         video::S3DVertex vertices[4] =
1009                         {
1010                                         video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1011                                                         ap.x0(), ap.y1()),
1012                                         video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1013                                                         ap.x1(), ap.y1()),
1014                                         video::S3DVertex(BS/2,g*BS/2+d,BS/2, 0,0,0, c,
1015                                                         ap.x1(), ap.y0()),
1016                                         video::S3DVertex(-BS/2,g*BS/2+d,BS/2, 0,0,0, c,
1017                                                         ap.x0(), ap.y0()),
1018                         };
1019
1020                         for(s32 i=0; i<4; i++)
1021                         {
1022                                 if(angle != 0)
1023                                         vertices[i].Pos.rotateXZBy(angle);
1024                                 vertices[i].Pos += intToFloat(p, BS);
1025                         }
1026
1027                         u16 indices[] = {0,1,2,2,3,0};
1028                         collector.append(tile, vertices, 4, indices, 6);
1029                 break;}
1030                 case NDT_NODEBOX:
1031                 {
1032                         TileSpec tiles[6];
1033                         for(int i = 0; i < 6; i++)
1034                         {
1035                                 tiles[i] = getNodeTileN(n, p, i, data);
1036                         }
1037
1038                         // Facedir rotation for textures
1039                         if(f.node_box.type == NODEBOX_FIXED){
1040                                 int facedir = n.getFaceDir(nodedef);
1041                                 if(facedir == 1){ // -90
1042                                         TileSpec old[6];
1043                                         for(int i=0; i<6; i++)
1044                                                 old[i] = tiles[i];
1045                                         // right <- back
1046                                         tiles[2] = old[4];
1047                                         // back <- left
1048                                         tiles[4] = old[3];
1049                                         // left <- front
1050                                         tiles[3] = old[5];
1051                                         // front <- right
1052                                         tiles[5] = old[2];
1053                                 }
1054                                 if(facedir == 2){ // 180
1055                                         TileSpec old[6];
1056                                         for(int i=0; i<6; i++)
1057                                                 old[i] = tiles[i];
1058                                         // right <-> left
1059                                         tiles[2] = old[3];
1060                                         tiles[3] = old[2];
1061                                         // back <-> front
1062                                         tiles[4] = old[5];
1063                                         tiles[5] = old[4];
1064                                 }
1065                                 if(facedir == 3){ // 90
1066                                         TileSpec old[6];
1067                                         for(int i=0; i<6; i++)
1068                                                 old[i] = tiles[i];
1069                                         // right <- front
1070                                         tiles[2] = old[5];
1071                                         // back <- right
1072                                         tiles[4] = old[2];
1073                                         // left <- back
1074                                         tiles[3] = old[4];
1075                                         // front <- left
1076                                         tiles[5] = old[3];
1077                                 }
1078                         }
1079
1080                         u16 l = getInteriorLight(n, 0, data);
1081                         video::SColor c = MapBlock_LightColor(255, l);
1082
1083                         v3f pos = intToFloat(p, BS);
1084
1085                         std::vector<aabb3f> boxes = n.getNodeBoxes(nodedef);
1086                         for(std::vector<aabb3f>::iterator
1087                                         i = boxes.begin();
1088                                         i != boxes.end(); i++)
1089                         {
1090                                 aabb3f box = *i;
1091                                 box.MinEdge += pos;
1092                                 box.MaxEdge += pos;
1093
1094                                 // Compute texture coords
1095                                 f32 tx1 = (i->MinEdge.X/BS)+0.5;
1096                                 f32 ty1 = (i->MinEdge.Y/BS)+0.5;
1097                                 f32 tz1 = (i->MinEdge.Z/BS)+0.5;
1098                                 f32 tx2 = (i->MaxEdge.X/BS)+0.5;
1099                                 f32 ty2 = (i->MaxEdge.Y/BS)+0.5;
1100                                 f32 tz2 = (i->MaxEdge.Z/BS)+0.5;
1101                                 f32 txc[24] = {
1102                                         // up
1103                                         tx1, 1-tz2, tx2, 1-tz1,
1104                                         // down
1105                                         tx1, tz1, tx2, tz2,
1106                                         // right
1107                                         tz1, 1-ty2, tz2, 1-ty1,
1108                                         // left
1109                                         1-tz2, 1-ty2, 1-tz1, 1-ty1,
1110                                         // back
1111                                         1-tx2, 1-ty2, 1-tx1, 1-ty1,
1112                                         // front
1113                                         tx1, 1-ty2, tx2, 1-ty1,
1114                                 };
1115
1116                                 makeCuboid(&collector, box, tiles, 6, c, txc);
1117                         }
1118                 break;}
1119                 }
1120         }
1121 }
1122