src/content_mapblock.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 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 #include "util/numeric.h"
  22 #include "util/directiontables.h"
  23 #include "mapblock_mesh.h" // For MapBlock_LightColor() and MeshCollector
  24 #include "settings.h"
  25 #include "nodedef.h"
  26 #include "client/tile.h"
  27 #include "mesh.h"
  28 #include <IMeshManipulator.h>
  29 #include "gamedef.h"
  30 #include "log.h"
  31
  32
  33 // Create a cuboid.
  34 //  collector - the MeshCollector for the resulting polygons
  35 //  box       - the position and size of the box
  36 //  tiles     - the tiles (materials) to use (for all 6 faces)
  37 //  tilecount - number of entries in tiles, 1<=tilecount<=6
  38 //  c         - vertex colour - used for all
  39 //  txc       - texture coordinates - this is a list of texture coordinates
  40 //              for the opposite corners of each face - therefore, there
  41 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  42 //              NULL to use the entire texture for each face. The order of
  43 //              the faces in the list is up-down-right-left-back-front
  44 //              (compatible with ContentFeatures). If you specified 0,0,1,1
  45 //              for each face, that would be the same as passing NULL.
  46 void makeCuboid(MeshCollector *collector, const aabb3f &box,
  47         TileSpec *tiles, int tilecount, video::SColor &c, const f32* txc)
  48 {
  49         assert(tilecount >= 1 && tilecount <= 6); // pre-condition
  50
  51         v3f min = box.MinEdge;
  52         v3f max = box.MaxEdge;
  53
  54
  55
  56         if(txc == NULL) {
  57                 static const f32 txc_default[24] = {
  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                         0,0,1,1
  64                 };
  65                 txc = txc_default;
  66         }
  67
  68         video::S3DVertex vertices[24] =
  69         {
  70                 // up
  71                 video::S3DVertex(min.X,max.Y,max.Z, 0,1,0, c, txc[0],txc[1]),
  72                 video::S3DVertex(max.X,max.Y,max.Z, 0,1,0, c, txc[2],txc[1]),
  73                 video::S3DVertex(max.X,max.Y,min.Z, 0,1,0, c, txc[2],txc[3]),
  74                 video::S3DVertex(min.X,max.Y,min.Z, 0,1,0, c, txc[0],txc[3]),
  75                 // down
  76                 video::S3DVertex(min.X,min.Y,min.Z, 0,-1,0, c, txc[4],txc[5]),
  77                 video::S3DVertex(max.X,min.Y,min.Z, 0,-1,0, c, txc[6],txc[5]),
  78                 video::S3DVertex(max.X,min.Y,max.Z, 0,-1,0, c, txc[6],txc[7]),
  79                 video::S3DVertex(min.X,min.Y,max.Z, 0,-1,0, c, txc[4],txc[7]),
  80                 // right
  81                 video::S3DVertex(max.X,max.Y,min.Z, 1,0,0, c, txc[ 8],txc[9]),
  82                 video::S3DVertex(max.X,max.Y,max.Z, 1,0,0, c, txc[10],txc[9]),
  83                 video::S3DVertex(max.X,min.Y,max.Z, 1,0,0, c, txc[10],txc[11]),
  84                 video::S3DVertex(max.X,min.Y,min.Z, 1,0,0, c, txc[ 8],txc[11]),
  85                 // left
  86                 video::S3DVertex(min.X,max.Y,max.Z, -1,0,0, c, txc[12],txc[13]),
  87                 video::S3DVertex(min.X,max.Y,min.Z, -1,0,0, c, txc[14],txc[13]),
  88                 video::S3DVertex(min.X,min.Y,min.Z, -1,0,0, c, txc[14],txc[15]),
  89                 video::S3DVertex(min.X,min.Y,max.Z, -1,0,0, c, txc[12],txc[15]),
  90                 // back
  91                 video::S3DVertex(max.X,max.Y,max.Z, 0,0,1, c, txc[16],txc[17]),
  92                 video::S3DVertex(min.X,max.Y,max.Z, 0,0,1, c, txc[18],txc[17]),
  93                 video::S3DVertex(min.X,min.Y,max.Z, 0,0,1, c, txc[18],txc[19]),
  94                 video::S3DVertex(max.X,min.Y,max.Z, 0,0,1, c, txc[16],txc[19]),
  95                 // front
  96                 video::S3DVertex(min.X,max.Y,min.Z, 0,0,-1, c, txc[20],txc[21]),
  97                 video::S3DVertex(max.X,max.Y,min.Z, 0,0,-1, c, txc[22],txc[21]),
  98                 video::S3DVertex(max.X,min.Y,min.Z, 0,0,-1, c, txc[22],txc[23]),
  99                 video::S3DVertex(min.X,min.Y,min.Z, 0,0,-1, c, txc[20],txc[23]),
 100         };
 101
 102         for(int i = 0; i < 6; i++)
 103                                 {
 104                                 switch (tiles[MYMIN(i, tilecount-1)].rotation)
 105                                 {
 106                                 case 0:
 107                                         break;
 108                                 case 1: //R90
 109                                         for (int x = 0; x < 4; x++)
 110                                                 vertices[i*4+x].TCoords.rotateBy(90,irr::core::vector2df(0, 0));
 111                                         break;
 112                                 case 2: //R180
 113                                         for (int x = 0; x < 4; x++)
 114                                                 vertices[i*4+x].TCoords.rotateBy(180,irr::core::vector2df(0, 0));
 115                                         break;
 116                                 case 3: //R270
 117                                         for (int x = 0; x < 4; x++)
 118                                                 vertices[i*4+x].TCoords.rotateBy(270,irr::core::vector2df(0, 0));
 119                                         break;
 120                                 case 4: //FXR90
 121                                         for (int x = 0; x < 4; x++){
 122                                                 vertices[i*4+x].TCoords.X = 1.0 - vertices[i*4+x].TCoords.X;
 123                                                 vertices[i*4+x].TCoords.rotateBy(90,irr::core::vector2df(0, 0));
 124                                         }
 125                                         break;
 126                                 case 5: //FXR270
 127                                         for (int x = 0; x < 4; x++){
 128                                                 vertices[i*4+x].TCoords.X = 1.0 - vertices[i*4+x].TCoords.X;
 129                                                 vertices[i*4+x].TCoords.rotateBy(270,irr::core::vector2df(0, 0));
 130                                         }
 131                                         break;
 132                                 case 6: //FYR90
 133                                         for (int x = 0; x < 4; x++){
 134                                                 vertices[i*4+x].TCoords.Y = 1.0 - vertices[i*4+x].TCoords.Y;
 135                                                 vertices[i*4+x].TCoords.rotateBy(90,irr::core::vector2df(0, 0));
 136                                         }
 137                                         break;
 138                                 case 7: //FYR270
 139                                         for (int x = 0; x < 4; x++){
 140                                                 vertices[i*4+x].TCoords.Y = 1.0 - vertices[i*4+x].TCoords.Y;
 141                                                 vertices[i*4+x].TCoords.rotateBy(270,irr::core::vector2df(0, 0));
 142                                         }
 143                                         break;
 144                                 case 8: //FX
 145                                         for (int x = 0; x < 4; x++){
 146                                                 vertices[i*4+x].TCoords.X = 1.0 - vertices[i*4+x].TCoords.X;
 147                                         }
 148                                         break;
 149                                 case 9: //FY
 150                                         for (int x = 0; x < 4; x++){
 151                                                 vertices[i*4+x].TCoords.Y = 1.0 - vertices[i*4+x].TCoords.Y;
 152                                         }
 153                                         break;
 154                                 default:
 155                                         break;
 156                                 }
 157                         }
 158         u16 indices[] = {0,1,2,2,3,0};
 159         // Add to mesh collector
 160         for (s32 j = 0; j < 24; j += 4) {
 161                 int tileindex = MYMIN(j / 4, tilecount - 1);
 162                 collector->append(tiles[tileindex], vertices + j, 4, indices, 6);
 163         }
 164 }
 165
 166 static inline void getNeighborConnectingFace(v3s16 p, INodeDefManager *nodedef,
 167                 MeshMakeData *data, MapNode n, int v, int *neighbors)
 168 {
 169         MapNode n2 = data->m_vmanip.getNodeNoEx(p);
 170         if (nodedef->nodeboxConnects(n, n2))
 171                 *neighbors |= v;
 172 }
 173
 174 /*
 175         TODO: Fix alpha blending for special nodes
 176         Currently only the last element rendered is blended correct
 177 */
 178 void mapblock_mesh_generate_special(MeshMakeData *data,
 179                 MeshCollector &collector)
 180 {
 181         INodeDefManager *nodedef = data->m_gamedef->ndef();
 182         scene::ISceneManager* smgr = data->m_gamedef->getSceneManager();
 183         scene::IMeshManipulator* meshmanip = smgr->getMeshManipulator();
 184
 185         // 0ms
 186         //TimeTaker timer("mapblock_mesh_generate_special()");
 187
 188         /*
 189                 Some settings
 190         */
 191         bool enable_mesh_cache  = g_settings->getBool("enable_mesh_cache");
 192
 193         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 194
 195         for(s16 z = 0; z < MAP_BLOCKSIZE; z++)
 196         for(s16 y = 0; y < MAP_BLOCKSIZE; y++)
 197         for(s16 x = 0; x < MAP_BLOCKSIZE; x++)
 198         {
 199                 v3s16 p(x,y,z);
 200
 201                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + p);
 202                 const ContentFeatures &f = nodedef->get(n);
 203
 204                 // Only solidness=0 stuff is drawn here
 205                 if(f.solidness != 0)
 206                         continue;
 207
 208                 switch(f.drawtype){
 209                 default:
 210                         infostream << "Got " << f.drawtype << std::endl;
 211                         FATAL_ERROR("Unknown drawtype");
 212                         break;
 213                 case NDT_AIRLIKE:
 214                         break;
 215                 case NDT_LIQUID:
 216                 {
 217                         /*
 218                                 Add water sources to mesh if using new style
 219                         */
 220                         TileSpec tile_liquid = f.special_tiles[0];
 221                         TileSpec tile_liquid_bfculled = getNodeTile(n, p, v3s16(0,0,0), data);
 222
 223                         bool top_is_same_liquid = false;
 224                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 225                         content_t c_flowing = nodedef->getId(f.liquid_alternative_flowing);
 226                         content_t c_source = nodedef->getId(f.liquid_alternative_source);
 227                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 228                                 top_is_same_liquid = true;
 229
 230                         u16 l = getInteriorLight(n, 0, nodedef);
 231                         video::SColor c = MapBlock_LightColor(f.alpha, l, f.light_source);
 232
 233                         /*
 234                                 Generate sides
 235                          */
 236                         v3s16 side_dirs[4] = {
 237                                 v3s16(1,0,0),
 238                                 v3s16(-1,0,0),
 239                                 v3s16(0,0,1),
 240                                 v3s16(0,0,-1),
 241                         };
 242                         for(u32 i=0; i<4; i++)
 243                         {
 244                                 v3s16 dir = side_dirs[i];
 245
 246                                 MapNode neighbor = data->m_vmanip.getNodeNoEx(blockpos_nodes + p + dir);
 247                                 content_t neighbor_content = neighbor.getContent();
 248                                 const ContentFeatures &n_feat = nodedef->get(neighbor_content);
 249                                 MapNode n_top = data->m_vmanip.getNodeNoEx(blockpos_nodes + p + dir+ v3s16(0,1,0));
 250                                 content_t n_top_c = n_top.getContent();
 251
 252                                 if(neighbor_content == CONTENT_IGNORE)
 253                                         continue;
 254
 255                                 /*
 256                                         If our topside is liquid and neighbor's topside
 257                                         is liquid, don't draw side face
 258                                 */
 259                                 if(top_is_same_liquid && (n_top_c == c_flowing ||
 260                                                 n_top_c == c_source || n_top_c == CONTENT_IGNORE))
 261                                         continue;
 262
 263                                 // Don't draw face if neighbor is blocking the view
 264                                 if(n_feat.solidness == 2)
 265                                         continue;
 266
 267                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 268                                                 || neighbor_content == c_flowing);
 269
 270                                 // Don't draw any faces if neighbor same is liquid and top is
 271                                 // same liquid
 272                                 if(neighbor_is_same_liquid && !top_is_same_liquid)
 273                                         continue;
 274
 275                                 // Use backface culled material if neighbor doesn't have a
 276                                 // solidness of 0
 277                                 const TileSpec *current_tile = &tile_liquid;
 278                                 if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
 279                                         current_tile = &tile_liquid_bfculled;
 280
 281                                 video::S3DVertex vertices[4] =
 282                                 {
 283                                         video::S3DVertex(-BS/2,0,BS/2,0,0,0, c, 0,1),
 284                                         video::S3DVertex(BS/2,0,BS/2,0,0,0, c, 1,1),
 285                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 286                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),
 287                                 };
 288
 289                                 /*
 290                                         If our topside is liquid, set upper border of face
 291                                         at upper border of node
 292                                 */
 293                                 if (top_is_same_liquid) {
 294                                         vertices[2].Pos.Y = 0.5 * BS;
 295                                         vertices[3].Pos.Y = 0.5 * BS;
 296                                 } else {
 297                                 /*
 298                                         Otherwise upper position of face is liquid level
 299                                 */
 300                                         vertices[2].Pos.Y = 0.5 * BS;
 301                                         vertices[3].Pos.Y = 0.5 * BS;
 302                                 }
 303                                 /*
 304                                         If neighbor is liquid, lower border of face is liquid level
 305                                 */
 306                                 if (neighbor_is_same_liquid) {
 307                                         vertices[0].Pos.Y = 0.5 * BS;
 308                                         vertices[1].Pos.Y = 0.5 * BS;
 309                                 } else {
 310                                 /*
 311                                         If neighbor is not liquid, lower border of face is
 312                                         lower border of node
 313                                 */
 314                                         vertices[0].Pos.Y = -0.5 * BS;
 315                                         vertices[1].Pos.Y = -0.5 * BS;
 316                                 }
 317
 318                                 for(s32 j=0; j<4; j++)
 319                                 {
 320                                         if(dir == v3s16(0,0,1))
 321                                                 vertices[j].Pos.rotateXZBy(0);
 322                                         if(dir == v3s16(0,0,-1))
 323                                                 vertices[j].Pos.rotateXZBy(180);
 324                                         if(dir == v3s16(-1,0,0))
 325                                                 vertices[j].Pos.rotateXZBy(90);
 326                                         if(dir == v3s16(1,0,-0))
 327                                                 vertices[j].Pos.rotateXZBy(-90);
 328
 329                                         // Do this to not cause glitches when two liquids are
 330                                         // side-by-side
 331                                         /*if(neighbor_is_same_liquid == false){
 332                                                 vertices[j].Pos.X *= 0.98;
 333                                                 vertices[j].Pos.Z *= 0.98;
 334                                         }*/
 335
 336                                         vertices[j].Pos += intToFloat(p, BS);
 337                                 }
 338
 339                                 u16 indices[] = {0,1,2,2,3,0};
 340                                 // Add to mesh collector
 341                                 collector.append(*current_tile, vertices, 4, indices, 6);
 342                         }
 343
 344                         /*
 345                                 Generate top
 346                          */
 347                         if(top_is_same_liquid)
 348                                 continue;
 349
 350                         video::S3DVertex vertices[4] =
 351                         {
 352                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 353                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 354                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,0),
 355                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,0),
 356                         };
 357
 358                         v3f offset(p.X * BS, (p.Y + 0.5) * BS, p.Z * BS);
 359                         for(s32 i=0; i<4; i++)
 360                         {
 361                                 vertices[i].Pos += offset;
 362                         }
 363
 364                         u16 indices[] = {0,1,2,2,3,0};
 365                         // Add to mesh collector
 366                         collector.append(tile_liquid, vertices, 4, indices, 6);
 367                 break;}
 368                 case NDT_FLOWINGLIQUID:
 369                 {
 370                         /*
 371                                 Add flowing liquid to mesh
 372                         */
 373                         TileSpec tile_liquid = f.special_tiles[0];
 374                         TileSpec tile_liquid_bfculled = f.special_tiles[1];
 375
 376                         bool top_is_same_liquid = false;
 377                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 378                         content_t c_flowing = nodedef->getId(f.liquid_alternative_flowing);
 379                         content_t c_source = nodedef->getId(f.liquid_alternative_source);
 380                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 381                                 top_is_same_liquid = true;
 382
 383                         u16 l = 0;
 384                         // If this liquid emits light and doesn't contain light, draw
 385                         // it at what it emits, for an increased effect
 386                         u8 light_source = nodedef->get(n).light_source;
 387                         if(light_source != 0){
 388                                 l = decode_light(light_source);
 389                                 l = l | (l<<8);
 390                         }
 391                         // Use the light of the node on top if possible
 392                         else if(nodedef->get(ntop).param_type == CPT_LIGHT)
 393                                 l = getInteriorLight(ntop, 0, nodedef);
 394                         // Otherwise use the light of this node (the liquid)
 395                         else
 396                                 l = getInteriorLight(n, 0, nodedef);
 397                         video::SColor c = MapBlock_LightColor(f.alpha, l, f.light_source);
 398
 399                         u8 range = rangelim(nodedef->get(c_flowing).liquid_range, 1, 8);
 400
 401                         // Neighbor liquid levels (key = relative position)
 402                         // Includes current node
 403                         std::map<v3s16, f32> neighbor_levels;
 404                         std::map<v3s16, content_t> neighbor_contents;
 405                         std::map<v3s16, u8> neighbor_flags;
 406                         const u8 neighborflag_top_is_same_liquid = 0x01;
 407                         v3s16 neighbor_dirs[9] = {
 408                                 v3s16(0,0,0),
 409                                 v3s16(0,0,1),
 410                                 v3s16(0,0,-1),
 411                                 v3s16(1,0,0),
 412                                 v3s16(-1,0,0),
 413                                 v3s16(1,0,1),
 414                                 v3s16(-1,0,-1),
 415                                 v3s16(1,0,-1),
 416                                 v3s16(-1,0,1),
 417                         };
 418                         for(u32 i=0; i<9; i++)
 419                         {
 420                                 content_t content = CONTENT_AIR;
 421                                 float level = -0.5 * BS;
 422                                 u8 flags = 0;
 423                                 // Check neighbor
 424                                 v3s16 p2 = p + neighbor_dirs[i];
 425                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 426                                 if(n2.getContent() != CONTENT_IGNORE)
 427                                 {
 428                                         content = n2.getContent();
 429
 430                                         if(n2.getContent() == c_source)
 431                                                 level = 0.5 * BS;
 432                                         else if(n2.getContent() == c_flowing){
 433                                                 u8 liquid_level = (n2.param2&LIQUID_LEVEL_MASK);
 434                                                 if (liquid_level <= LIQUID_LEVEL_MAX+1-range)
 435                                                         liquid_level = 0;
 436                                                 else
 437                                                         liquid_level -= (LIQUID_LEVEL_MAX+1-range);
 438                                                 level = (-0.5 + ((float)liquid_level + 0.5) / (float)range) * BS;
 439                                         }
 440
 441                                         // Check node above neighbor.
 442                                         // NOTE: This doesn't get executed if neighbor
 443                                         //       doesn't exist
 444                                         p2.Y += 1;
 445                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 446                                         if(n2.getContent() == c_source ||
 447                                                         n2.getContent() == c_flowing)
 448                                                 flags |= neighborflag_top_is_same_liquid;
 449                                 }
 450
 451                                 neighbor_levels[neighbor_dirs[i]] = level;
 452                                 neighbor_contents[neighbor_dirs[i]] = content;
 453                                 neighbor_flags[neighbor_dirs[i]] = flags;
 454                         }
 455
 456                         // Corner heights (average between four liquids)
 457                         f32 corner_levels[4];
 458
 459                         v3s16 halfdirs[4] = {
 460                                 v3s16(0,0,0),
 461                                 v3s16(1,0,0),
 462                                 v3s16(1,0,1),
 463                                 v3s16(0,0,1),
 464                         };
 465                         for(u32 i=0; i<4; i++)
 466                         {
 467                                 v3s16 cornerdir = halfdirs[i];
 468                                 float cornerlevel = 0;
 469                                 u32 valid_count = 0;
 470                                 u32 air_count = 0;
 471                                 for(u32 j=0; j<4; j++)
 472                                 {
 473                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 474                                         content_t content = neighbor_contents[neighbordir];
 475                                         // If top is liquid, draw starting from top of node
 476                                         if(neighbor_flags[neighbordir] &
 477                                                         neighborflag_top_is_same_liquid)
 478                                         {
 479                                                 cornerlevel = 0.5*BS;
 480                                                 valid_count = 1;
 481                                                 break;
 482                                         }
 483                                         // Source is always the same height
 484                                         else if(content == c_source)
 485                                         {
 486                                                 cornerlevel = 0.5 * BS;
 487                                                 valid_count = 1;
 488                                                 break;
 489                                         }
 490                                         // Flowing liquid has level information
 491                                         else if(content == c_flowing)
 492                                         {
 493                                                 cornerlevel += neighbor_levels[neighbordir];
 494                                                 valid_count++;
 495                                         }
 496                                         else if(content == CONTENT_AIR)
 497                                         {
 498                                                 air_count++;
 499                                         }
 500                                 }
 501                                 if(air_count >= 2)
 502                                         cornerlevel = -0.5*BS+0.2;
 503                                 else if(valid_count > 0)
 504                                         cornerlevel /= valid_count;
 505                                 corner_levels[i] = cornerlevel;
 506                         }
 507
 508                         /*
 509                                 Generate sides
 510                         */
 511
 512                         v3s16 side_dirs[4] = {
 513                                 v3s16(1,0,0),
 514                                 v3s16(-1,0,0),
 515                                 v3s16(0,0,1),
 516                                 v3s16(0,0,-1),
 517                         };
 518                         s16 side_corners[4][2] = {
 519                                 {1, 2},
 520                                 {3, 0},
 521                                 {2, 3},
 522                                 {0, 1},
 523                         };
 524                         for(u32 i=0; i<4; i++)
 525                         {
 526                                 v3s16 dir = side_dirs[i];
 527
 528                                 /*
 529                                         If our topside is liquid and neighbor's topside
 530                                         is liquid, don't draw side face
 531                                 */
 532                                 if(top_is_same_liquid &&
 533                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 534                                         continue;
 535
 536                                 content_t neighbor_content = neighbor_contents[dir];
 537                                 const ContentFeatures &n_feat = nodedef->get(neighbor_content);
 538
 539                                 // Don't draw face if neighbor is blocking the view
 540                                 if(n_feat.solidness == 2)
 541                                         continue;
 542
 543                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 544                                                 || neighbor_content == c_flowing);
 545
 546                                 // Don't draw any faces if neighbor same is liquid and top is
 547                                 // same liquid
 548                                 if(neighbor_is_same_liquid == true
 549                                                 && top_is_same_liquid == false)
 550                                         continue;
 551
 552                                 // Use backface culled material if neighbor doesn't have a
 553                                 // solidness of 0
 554                                 const TileSpec *current_tile = &tile_liquid;
 555                                 if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
 556                                         current_tile = &tile_liquid_bfculled;
 557
 558                                 video::S3DVertex vertices[4] =
 559                                 {
 560                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 561                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 562                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 563                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),
 564                                 };
 565
 566                                 /*
 567                                         If our topside is liquid, set upper border of face
 568                                         at upper border of node
 569                                 */
 570                                 if(top_is_same_liquid)
 571                                 {
 572                                         vertices[2].Pos.Y = 0.5*BS;
 573                                         vertices[3].Pos.Y = 0.5*BS;
 574                                 }
 575                                 /*
 576                                         Otherwise upper position of face is corner levels
 577                                 */
 578                                 else
 579                                 {
 580                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 581                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 582                                 }
 583
 584                                 /*
 585                                         If neighbor is liquid, lower border of face is corner
 586                                         liquid levels
 587                                 */
 588                                 if(neighbor_is_same_liquid)
 589                                 {
 590                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 591                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 592                                 }
 593                                 /*
 594                                         If neighbor is not liquid, lower border of face is
 595                                         lower border of node
 596                                 */
 597                                 else
 598                                 {
 599                                         vertices[0].Pos.Y = -0.5*BS;
 600                                         vertices[1].Pos.Y = -0.5*BS;
 601                                 }
 602
 603                                 for(s32 j=0; j<4; j++)
 604                                 {
 605                                         if(dir == v3s16(0,0,1))
 606                                                 vertices[j].Pos.rotateXZBy(0);
 607                                         if(dir == v3s16(0,0,-1))
 608                                                 vertices[j].Pos.rotateXZBy(180);
 609                                         if(dir == v3s16(-1,0,0))
 610                                                 vertices[j].Pos.rotateXZBy(90);
 611                                         if(dir == v3s16(1,0,-0))
 612                                                 vertices[j].Pos.rotateXZBy(-90);
 613
 614                                         // Do this to not cause glitches when two liquids are
 615                                         // side-by-side
 616                                         /*if(neighbor_is_same_liquid == false){
 617                                                 vertices[j].Pos.X *= 0.98;
 618                                                 vertices[j].Pos.Z *= 0.98;
 619                                         }*/
 620
 621                                         vertices[j].Pos += intToFloat(p, BS);
 622                                 }
 623
 624                                 u16 indices[] = {0,1,2,2,3,0};
 625                                 // Add to mesh collector
 626                                 collector.append(*current_tile, vertices, 4, indices, 6);
 627                         }
 628
 629                         /*
 630                                 Generate top side, if appropriate
 631                         */
 632
 633                         if(top_is_same_liquid == false)
 634                         {
 635                                 video::S3DVertex vertices[4] =
 636                                 {
 637                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 638                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 639                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,0),
 640                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,0),
 641                                 };
 642
 643                                 // To get backface culling right, the vertices need to go
 644                                 // clockwise around the front of the face. And we happened to
 645                                 // calculate corner levels in exact reverse order.
 646                                 s32 corner_resolve[4] = {3,2,1,0};
 647
 648                                 for(s32 i=0; i<4; i++)
 649                                 {
 650                                         //vertices[i].Pos.Y += liquid_level;
 651                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 652                                         s32 j = corner_resolve[i];
 653                                         vertices[i].Pos.Y += corner_levels[j];
 654                                         vertices[i].Pos += intToFloat(p, BS);
 655                                 }
 656
 657                                 // Default downwards-flowing texture animation goes from
 658                                 // -Z towards +Z, thus the direction is +Z.
 659                                 // Rotate texture to make animation go in flow direction
 660                                 // Positive if liquid moves towards +Z
 661                                 f32 dz = (corner_levels[side_corners[3][0]] +
 662                                                 corner_levels[side_corners[3][1]]) -
 663                                                 (corner_levels[side_corners[2][0]] +
 664                                                 corner_levels[side_corners[2][1]]);
 665                                 // Positive if liquid moves towards +X
 666                                 f32 dx = (corner_levels[side_corners[1][0]] +
 667                                                 corner_levels[side_corners[1][1]]) -
 668                                                 (corner_levels[side_corners[0][0]] +
 669                                                 corner_levels[side_corners[0][1]]);
 670                                 f32 tcoord_angle = atan2(dz, dx) * core::RADTODEG ;
 671                                 v2f tcoord_center(0.5, 0.5);
 672                                 v2f tcoord_translate(
 673                                                 blockpos_nodes.Z + z,
 674                                                 blockpos_nodes.X + x);
 675                                 tcoord_translate.rotateBy(tcoord_angle);
 676                                 tcoord_translate.X -= floor(tcoord_translate.X);
 677                                 tcoord_translate.Y -= floor(tcoord_translate.Y);
 678
 679                                 for(s32 i=0; i<4; i++)
 680                                 {
 681                                         vertices[i].TCoords.rotateBy(
 682                                                         tcoord_angle,
 683                                                         tcoord_center);
 684                                         vertices[i].TCoords += tcoord_translate;
 685                                 }
 686
 687                                 v2f t = vertices[0].TCoords;
 688                                 vertices[0].TCoords = vertices[2].TCoords;
 689                                 vertices[2].TCoords = t;
 690
 691                                 u16 indices[] = {0,1,2,2,3,0};
 692                                 // Add to mesh collector
 693                                 collector.append(tile_liquid, vertices, 4, indices, 6);
 694                         }
 695                 break;}
 696                 case NDT_GLASSLIKE:
 697                 {
 698                         TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
 699
 700                         u16 l = getInteriorLight(n, 1, nodedef);
 701                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
 702
 703                         for(u32 j=0; j<6; j++)
 704                         {
 705                                 // Check this neighbor
 706                                 v3s16 dir = g_6dirs[j];
 707                                 v3s16 n2p = blockpos_nodes + p + dir;
 708                                 MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
 709                                 // Don't make face if neighbor is of same type
 710                                 if(n2.getContent() == n.getContent())
 711                                         continue;
 712
 713                                 // The face at Z+
 714                                 video::S3DVertex vertices[4] = {
 715                                         video::S3DVertex(-BS/2,-BS/2,BS/2, dir.X,dir.Y,dir.Z, c, 1,1),
 716                                         video::S3DVertex(BS/2,-BS/2,BS/2, dir.X,dir.Y,dir.Z, c, 0,1),
 717                                         video::S3DVertex(BS/2,BS/2,BS/2, dir.X,dir.Y,dir.Z, c, 0,0),
 718                                         video::S3DVertex(-BS/2,BS/2,BS/2, dir.X,dir.Y,dir.Z, c, 1,0),
 719                                 };
 720
 721                                 // Rotations in the g_6dirs format
 722                                 if(j == 0) // Z+
 723                                         for(u16 i=0; i<4; i++)
 724                                                 vertices[i].Pos.rotateXZBy(0);
 725                                 else if(j == 1) // Y+
 726                                         for(u16 i=0; i<4; i++)
 727                                                 vertices[i].Pos.rotateYZBy(-90);
 728                                 else if(j == 2) // X+
 729                                         for(u16 i=0; i<4; i++)
 730                                                 vertices[i].Pos.rotateXZBy(-90);
 731                                 else if(j == 3) // Z-
 732                                         for(u16 i=0; i<4; i++)
 733                                                 vertices[i].Pos.rotateXZBy(180);
 734                                 else if(j == 4) // Y-
 735                                         for(u16 i=0; i<4; i++)
 736                                                 vertices[i].Pos.rotateYZBy(90);
 737                                 else if(j == 5) // X-
 738                                         for(u16 i=0; i<4; i++)
 739                                                 vertices[i].Pos.rotateXZBy(90);
 740
 741                                 for(u16 i=0; i<4; i++){
 742                                         vertices[i].Pos += intToFloat(p, BS);
 743                                 }
 744
 745                                 u16 indices[] = {0,1,2,2,3,0};
 746                                 // Add to mesh collector
 747                                 collector.append(tile, vertices, 4, indices, 6);
 748                         }
 749                 break;}
 750                 case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 751                         // This is always pre-converted to something else
 752                         FATAL_ERROR("NDT_GLASSLIKE_FRAMED_OPTIONAL not pre-converted as expected");
 753                         break;
 754                 case NDT_GLASSLIKE_FRAMED:
 755                 {
 756                         static const v3s16 dirs[6] = {
 757                                 v3s16( 0, 1, 0),
 758                                 v3s16( 0,-1, 0),
 759                                 v3s16( 1, 0, 0),
 760                                 v3s16(-1, 0, 0),
 761                                 v3s16( 0, 0, 1),
 762                                 v3s16( 0, 0,-1)
 763                         };
 764
 765                         u8 i;
 766                         TileSpec tiles[6];
 767                         for (i = 0; i < 6; i++)
 768                                 tiles[i] = getNodeTile(n, p, dirs[i], data);
 769
 770                         TileSpec glass_tiles[6];
 771                         if (tiles[1].texture && tiles[2].texture && tiles[3].texture) {
 772                                 glass_tiles[0] = tiles[2];
 773                                 glass_tiles[1] = tiles[3];
 774                                 glass_tiles[2] = tiles[1];
 775                                 glass_tiles[3] = tiles[1];
 776                                 glass_tiles[4] = tiles[1];
 777                                 glass_tiles[5] = tiles[1];
 778                         } else {
 779                                 for (i = 0; i < 6; i++)
 780                                         glass_tiles[i] = tiles[1];
 781                         }
 782
 783                         u8 param2 = n.getParam2();
 784                         bool H_merge = ! bool(param2 & 128);
 785                         bool V_merge = ! bool(param2 & 64);
 786                         param2  = param2 & 63;
 787
 788                         u16 l = getInteriorLight(n, 1, nodedef);
 789                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
 790                         v3f pos = intToFloat(p, BS);
 791                         static const float a = BS / 2;
 792                         static const float g = a - 0.003;
 793                         static const float b = .876 * ( BS / 2 );
 794
 795                         static const aabb3f frame_edges[12] = {
 796                                 aabb3f( b, b,-a, a, a, a), // y+
 797                                 aabb3f(-a, b,-a,-b, a, a), // y+
 798                                 aabb3f( b,-a,-a, a,-b, a), // y-
 799                                 aabb3f(-a,-a,-a,-b,-b, a), // y-
 800                                 aabb3f( b,-a, b, a, a, a), // x+
 801                                 aabb3f( b,-a,-a, a, a,-b), // x+
 802                                 aabb3f(-a,-a, b,-b, a, a), // x-
 803                                 aabb3f(-a,-a,-a,-b, a,-b), // x-
 804                                 aabb3f(-a, b, b, a, a, a), // z+
 805                                 aabb3f(-a,-a, b, a,-b, a), // z+
 806                                 aabb3f(-a,-a,-a, a,-b,-b), // z-
 807                                 aabb3f(-a, b,-a, a, a,-b)  // z-
 808                         };
 809                         static const aabb3f glass_faces[6] = {
 810                                 aabb3f(-g, g,-g, g, g, g), // y+
 811                                 aabb3f(-g,-g,-g, g,-g, g), // y-
 812                                 aabb3f( g,-g,-g, g, g, g), // x+
 813                                 aabb3f(-g,-g,-g,-g, g, g), // x-
 814                                 aabb3f(-g,-g, g, g, g, g), // z+
 815                                 aabb3f(-g,-g,-g, g, g,-g)  // z-
 816                         };
 817
 818                         // table of node visible faces, 0 = invisible
 819                         int visible_faces[6] = {0,0,0,0,0,0};
 820
 821                         // table of neighbours, 1 = same type, checked with g_26dirs
 822                         int nb[18] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
 823
 824                         // g_26dirs to check when only horizontal merge is allowed
 825                         int nb_H_dirs[8] = {0,2,3,5,10,11,12,13};
 826
 827                         content_t current = n.getContent();
 828                         content_t n2c;
 829                         MapNode n2;
 830                         v3s16 n2p;
 831
 832                         // neighbours checks for frames visibility
 833
 834                         if (!H_merge && V_merge) {
 835                                 n2p = blockpos_nodes + p + g_26dirs[1];
 836                                 n2 = data->m_vmanip.getNodeNoEx(n2p);
 837                                 n2c = n2.getContent();
 838                                 if (n2c == current || n2c == CONTENT_IGNORE)
 839                                         nb[1] = 1;
 840                                 n2p = blockpos_nodes + p + g_26dirs[4];
 841                                 n2 = data->m_vmanip.getNodeNoEx(n2p);
 842                                 n2c = n2.getContent();
 843                                 if (n2c == current || n2c == CONTENT_IGNORE)
 844                                         nb[4] = 1;
 845                         } else if (H_merge && !V_merge) {
 846                                 for(i = 0; i < 8; i++) {
 847                                         n2p = blockpos_nodes + p + g_26dirs[nb_H_dirs[i]];
 848                                         n2 = data->m_vmanip.getNodeNoEx(n2p);
 849                                         n2c = n2.getContent();
 850                                         if (n2c == current || n2c == CONTENT_IGNORE)
 851                                                 nb[nb_H_dirs[i]] = 1;
 852                                 }
 853                         } else if (H_merge && V_merge) {
 854                                 for(i = 0; i < 18; i++) {
 855                                         n2p = blockpos_nodes + p + g_26dirs[i];
 856                                         n2 = data->m_vmanip.getNodeNoEx(n2p);
 857                                         n2c = n2.getContent();
 858                                         if (n2c == current || n2c == CONTENT_IGNORE)
 859                                                 nb[i] = 1;
 860                                 }
 861                         }
 862
 863                         // faces visibility checks
 864
 865                         if (!V_merge) {
 866                                 visible_faces[0] = 1;
 867                                 visible_faces[1] = 1;
 868                         } else {
 869                                 for(i = 0; i < 2; i++) {
 870                                         n2p = blockpos_nodes + p + dirs[i];
 871                                         n2 = data->m_vmanip.getNodeNoEx(n2p);
 872                                         n2c = n2.getContent();
 873                                         if (n2c != current)
 874                                                 visible_faces[i] = 1;
 875                                 }
 876                         }
 877
 878                         if (!H_merge) {
 879                                 visible_faces[2] = 1;
 880                                 visible_faces[3] = 1;
 881                                 visible_faces[4] = 1;
 882                                 visible_faces[5] = 1;
 883                         } else {
 884                                 for(i = 2; i < 6; i++) {
 885                                         n2p = blockpos_nodes + p + dirs[i];
 886                                         n2 = data->m_vmanip.getNodeNoEx(n2p);
 887                                         n2c = n2.getContent();
 888                                         if (n2c != current)
 889                                                 visible_faces[i] = 1;
 890                                 }
 891                         }
 892
 893                         static const u8 nb_triplet[12*3] = {
 894                                 1,2, 7,  1,5, 6,  4,2,15,  4,5,14,
 895                                 2,0,11,  2,3,13,  5,0,10,  5,3,12,
 896                                 0,1, 8,  0,4,16,  3,4,17,  3,1, 9
 897                         };
 898
 899                         f32 tx1, ty1, tz1, tx2, ty2, tz2;
 900                         aabb3f box;
 901
 902                         for(i = 0; i < 12; i++)
 903                         {
 904                                 int edge_invisible;
 905                                 if (nb[nb_triplet[i*3+2]])
 906                                         edge_invisible = nb[nb_triplet[i*3]] & nb[nb_triplet[i*3+1]];
 907                                 else
 908                                         edge_invisible = nb[nb_triplet[i*3]] ^ nb[nb_triplet[i*3+1]];
 909                                 if (edge_invisible)
 910                                         continue;
 911                                 box = frame_edges[i];
 912                                 box.MinEdge += pos;
 913                                 box.MaxEdge += pos;
 914                                 tx1 = (box.MinEdge.X / BS) + 0.5;
 915                                 ty1 = (box.MinEdge.Y / BS) + 0.5;
 916                                 tz1 = (box.MinEdge.Z / BS) + 0.5;
 917                                 tx2 = (box.MaxEdge.X / BS) + 0.5;
 918                                 ty2 = (box.MaxEdge.Y / BS) + 0.5;
 919                                 tz2 = (box.MaxEdge.Z / BS) + 0.5;
 920                                 f32 txc1[24] = {
 921                                         tx1,   1-tz2,   tx2, 1-tz1,
 922                                         tx1,     tz1,   tx2,   tz2,
 923                                         tz1,   1-ty2,   tz2, 1-ty1,
 924                                         1-tz2, 1-ty2, 1-tz1, 1-ty1,
 925                                         1-tx2, 1-ty2, 1-tx1, 1-ty1,
 926                                         tx1,   1-ty2,   tx2, 1-ty1,
 927                                 };
 928                                 makeCuboid(&collector, box, &tiles[0], 1, c, txc1);
 929                         }
 930
 931                         for(i = 0; i < 6; i++)
 932                         {
 933                                 if (!visible_faces[i])
 934                                         continue;
 935                                 box = glass_faces[i];
 936                                 box.MinEdge += pos;
 937                                 box.MaxEdge += pos;
 938                                 tx1 = (box.MinEdge.X / BS) + 0.5;
 939                                 ty1 = (box.MinEdge.Y / BS) + 0.5;
 940                                 tz1 = (box.MinEdge.Z / BS) + 0.5;
 941                                 tx2 = (box.MaxEdge.X / BS) + 0.5;
 942                                 ty2 = (box.MaxEdge.Y / BS) + 0.5;
 943                                 tz2 = (box.MaxEdge.Z / BS) + 0.5;
 944                                 f32 txc2[24] = {
 945                                         tx1,   1-tz2,   tx2, 1-tz1,
 946                                         tx1,     tz1,   tx2,   tz2,
 947                                         tz1,   1-ty2,   tz2, 1-ty1,
 948                                         1-tz2, 1-ty2, 1-tz1, 1-ty1,
 949                                         1-tx2, 1-ty2, 1-tx1, 1-ty1,
 950                                         tx1,   1-ty2,   tx2, 1-ty1,
 951                                 };
 952                                 makeCuboid(&collector, box, &glass_tiles[i], 1, c, txc2);
 953                         }
 954
 955                         if (param2 > 0 && f.special_tiles[0].texture) {
 956                                 // Interior volume level is in range 0 .. 63,
 957                                 // convert it to -0.5 .. 0.5
 958                                 float vlev = (((float)param2 / 63.0 ) * 2.0 - 1.0);
 959                                 TileSpec interior_tiles[6];
 960                                 for (i = 0; i < 6; i++)
 961                                         interior_tiles[i] = f.special_tiles[0];
 962                                 float offset = 0.003;
 963                                 box = aabb3f(visible_faces[3] ? -b : -a + offset,
 964                                                          visible_faces[1] ? -b : -a + offset,
 965                                                          visible_faces[5] ? -b : -a + offset,
 966                                                          visible_faces[2] ? b : a - offset,
 967                                                          visible_faces[0] ? b * vlev : a * vlev - offset,
 968                                                          visible_faces[4] ? b : a - offset);
 969                                 box.MinEdge += pos;
 970                                 box.MaxEdge += pos;
 971                                 tx1 = (box.MinEdge.X / BS) + 0.5;
 972                                 ty1 = (box.MinEdge.Y / BS) + 0.5;
 973                                 tz1 = (box.MinEdge.Z / BS) + 0.5;
 974                                 tx2 = (box.MaxEdge.X / BS) + 0.5;
 975                                 ty2 = (box.MaxEdge.Y / BS) + 0.5;
 976                                 tz2 = (box.MaxEdge.Z / BS) + 0.5;
 977                                 f32 txc3[24] = {
 978                                         tx1,   1-tz2,   tx2, 1-tz1,
 979                                         tx1,     tz1,   tx2,   tz2,
 980                                         tz1,   1-ty2,   tz2, 1-ty1,
 981                                         1-tz2, 1-ty2, 1-tz1, 1-ty1,
 982                                         1-tx2, 1-ty2, 1-tx1, 1-ty1,
 983                                         tx1,   1-ty2,   tx2, 1-ty1,
 984                                 };
 985                                 makeCuboid(&collector, box, interior_tiles, 6, c,  txc3);
 986                         }
 987                 break;}
 988                 case NDT_ALLFACES:
 989                 {
 990                         TileSpec tile_leaves = getNodeTile(n, p,
 991                                         v3s16(0,0,0), data);
 992
 993                         u16 l = getInteriorLight(n, 1, nodedef);
 994                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
 995
 996                         v3f pos = intToFloat(p, BS);
 997                         aabb3f box(-BS/2,-BS/2,-BS/2,BS/2,BS/2,BS/2);
 998                         box.MinEdge += pos;
 999                         box.MaxEdge += pos;
1000                         makeCuboid(&collector, box, &tile_leaves, 1, c, NULL);
1001                 break;}
1002                 case NDT_ALLFACES_OPTIONAL:
1003                         // This is always pre-converted to something else
1004                         FATAL_ERROR("NDT_ALLFACES_OPTIONAL not pre-converted");
1005                         break;
1006                 case NDT_TORCHLIKE:
1007                 {
1008                         v3s16 dir = n.getWallMountedDir(nodedef);
1009
1010                         u8 tileindex = 0;
1011                         if(dir == v3s16(0,-1,0)){
1012                                 tileindex = 0; // floor
1013                         } else if(dir == v3s16(0,1,0)){
1014                                 tileindex = 1; // ceiling
1015                         // For backwards compatibility
1016                         } else if(dir == v3s16(0,0,0)){
1017                                 tileindex = 0; // floor
1018                         } else {
1019                                 tileindex = 2; // side
1020                         }
1021
1022                         TileSpec tile = getNodeTileN(n, p, tileindex, data);
1023                         tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
1024                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
1025
1026                         u16 l = getInteriorLight(n, 1, nodedef);
1027                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
1028
1029                         float s = BS/2*f.visual_scale;
1030                         // Wall at X+ of node
1031                         video::S3DVertex vertices[4] =
1032                         {
1033                                 video::S3DVertex(-s,-s,0, 0,0,0, c, 0,1),
1034                                 video::S3DVertex( s,-s,0, 0,0,0, c, 1,1),
1035                                 video::S3DVertex( s, s,0, 0,0,0, c, 1,0),
1036                                 video::S3DVertex(-s, s,0, 0,0,0, c, 0,0),
1037                         };
1038
1039                         for(s32 i=0; i<4; i++)
1040                         {
1041                                 if(dir == v3s16(1,0,0))
1042                                         vertices[i].Pos.rotateXZBy(0);
1043                                 if(dir == v3s16(-1,0,0))
1044                                         vertices[i].Pos.rotateXZBy(180);
1045                                 if(dir == v3s16(0,0,1))
1046                                         vertices[i].Pos.rotateXZBy(90);
1047                                 if(dir == v3s16(0,0,-1))
1048                                         vertices[i].Pos.rotateXZBy(-90);
1049                                 if(dir == v3s16(0,-1,0))
1050                                         vertices[i].Pos.rotateXZBy(45);
1051                                 if(dir == v3s16(0,1,0))
1052                                         vertices[i].Pos.rotateXZBy(-45);
1053
1054                                 vertices[i].Pos += intToFloat(p, BS);
1055                         }
1056
1057                         u16 indices[] = {0,1,2,2,3,0};
1058                         // Add to mesh collector
1059                         collector.append(tile, vertices, 4, indices, 6);
1060                 break;}
1061                 case NDT_SIGNLIKE:
1062                 {
1063                         TileSpec tile = getNodeTileN(n, p, 0, data);
1064                         tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
1065                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
1066
1067                         u16 l = getInteriorLight(n, 0, nodedef);
1068                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
1069
1070                         float d = (float)BS/16;
1071                         float s = BS/2*f.visual_scale;
1072                         // Wall at X+ of node
1073                         video::S3DVertex vertices[4] =
1074                         {
1075                                 video::S3DVertex(BS/2-d,  s,  s, 0,0,0, c, 0,0),
1076                                 video::S3DVertex(BS/2-d,  s, -s, 0,0,0, c, 1,0),
1077                                 video::S3DVertex(BS/2-d, -s, -s, 0,0,0, c, 1,1),
1078                                 video::S3DVertex(BS/2-d, -s,  s, 0,0,0, c, 0,1),
1079                         };
1080
1081                         v3s16 dir = n.getWallMountedDir(nodedef);
1082
1083                         for(s32 i=0; i<4; i++)
1084                         {
1085                                 if(dir == v3s16(1,0,0))
1086                                         vertices[i].Pos.rotateXZBy(0);
1087                                 if(dir == v3s16(-1,0,0))
1088                                         vertices[i].Pos.rotateXZBy(180);
1089                                 if(dir == v3s16(0,0,1))
1090                                         vertices[i].Pos.rotateXZBy(90);
1091                                 if(dir == v3s16(0,0,-1))
1092                                         vertices[i].Pos.rotateXZBy(-90);
1093                                 if(dir == v3s16(0,-1,0))
1094                                         vertices[i].Pos.rotateXYBy(-90);
1095                                 if(dir == v3s16(0,1,0))
1096                                         vertices[i].Pos.rotateXYBy(90);
1097
1098                                 vertices[i].Pos += intToFloat(p, BS);
1099                         }
1100
1101                         u16 indices[] = {0,1,2,2,3,0};
1102                         // Add to mesh collector
1103                         collector.append(tile, vertices, 4, indices, 6);
1104                 break;}
1105                 case NDT_PLANTLIKE:
1106                 {
1107                         TileSpec tile = getNodeTileN(n, p, 0, data);
1108                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
1109
1110                         u16 l = getInteriorLight(n, 1, nodedef);
1111                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
1112
1113                         float s = BS / 2 * f.visual_scale;
1114
1115                         for (int j = 0; j < 2; j++)
1116                         {
1117                                 video::S3DVertex vertices[4] =
1118                                 {
1119                                         video::S3DVertex(-s,-BS/2, 0, 0,0,0, c, 0,1),
1120                                         video::S3DVertex( s,-BS/2, 0, 0,0,0, c, 1,1),
1121                                         video::S3DVertex( s,-BS/2 + s*2,0, 0,0,0, c, 1,0),
1122                                         video::S3DVertex(-s,-BS/2 + s*2,0, 0,0,0, c, 0,0),
1123                                 };
1124                                 float rotate_degree = 0;
1125                                 if (f.param_type_2 == CPT2_DEGROTATE)
1126                                         rotate_degree = n.param2 * 2;
1127
1128                                 if (j == 0) {
1129                                         for(u16 i = 0; i < 4; i++)
1130                                                 vertices[i].Pos.rotateXZBy(46 + rotate_degree);
1131                                 } else if (j == 1) {
1132                                         for(u16 i = 0; i < 4; i++)
1133                                                 vertices[i].Pos.rotateXZBy(-44 + rotate_degree);
1134                                 }
1135
1136                                 for (int i = 0; i < 4; i++)
1137                                 {
1138                                         vertices[i].Pos *= f.visual_scale;
1139                                         vertices[i].Pos.Y += BS/2 * (f.visual_scale - 1);
1140                                         vertices[i].Pos += intToFloat(p, BS);
1141                                 }
1142
1143                                 u16 indices[] = {0, 1, 2, 2, 3, 0};
1144                                 // Add to mesh collector
1145                                 collector.append(tile, vertices, 4, indices, 6);
1146                         }
1147                 break;}
1148                 case NDT_FIRELIKE:
1149                 {
1150                         TileSpec tile = getNodeTileN(n, p, 0, data);
1151                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
1152
1153                         u16 l = getInteriorLight(n, 1, nodedef);
1154                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
1155
1156                         float s = BS / 2 * f.visual_scale;
1157
1158                         content_t current = n.getContent();
1159                         content_t n2c;
1160                         MapNode n2;
1161                         v3s16 n2p;
1162
1163                         static const v3s16 dirs[6] = {
1164                                 v3s16( 0,  1,  0),
1165                                 v3s16( 0, -1,  0),
1166                                 v3s16( 1,  0,  0),
1167                                 v3s16(-1,  0,  0),
1168                                 v3s16( 0,  0,  1),
1169                                 v3s16( 0,  0, -1)
1170                         };
1171
1172                         int doDraw[6] = {0, 0, 0, 0, 0, 0};
1173
1174                         bool drawAllFaces = true;
1175
1176                         // Check for adjacent nodes
1177                         for (int i = 0; i < 6; i++) {
1178                                 n2p = blockpos_nodes + p + dirs[i];
1179                                 n2 = data->m_vmanip.getNodeNoEx(n2p);
1180                                 n2c = n2.getContent();
1181                                 if (n2c != CONTENT_IGNORE && n2c != CONTENT_AIR && n2c != current) {
1182                                         doDraw[i] = 1;
1183                                         if (drawAllFaces)
1184                                                 drawAllFaces = false;
1185
1186                                 }
1187                         }
1188
1189                         for (int j = 0; j < 6; j++) {
1190
1191                                 video::S3DVertex vertices[4] = {
1192                                         video::S3DVertex(-s, -BS / 2,         0, 0, 0, 0, c, 0, 1),
1193                                         video::S3DVertex( s, -BS / 2,         0, 0, 0, 0, c, 1, 1),
1194                                         video::S3DVertex( s, -BS / 2 + s * 2, 0, 0, 0, 0, c, 1, 0),
1195                                         video::S3DVertex(-s, -BS / 2 + s * 2, 0, 0, 0, 0, c, 0, 0),
1196                                 };
1197
1198                                 // Calculate which faces should be drawn, (top or sides)
1199                                 if (j == 0 && (drawAllFaces ||
1200                                                 (doDraw[3] == 1 || doDraw[1] == 1))) {
1201                                         for (int i = 0; i < 4; i++) {
1202                                                 vertices[i].Pos.rotateXZBy(90);
1203                                                 vertices[i].Pos.rotateXYBy(-10);
1204                                                 vertices[i].Pos.X -= 4.0;
1205                                         }
1206                                 } else if (j == 1 && (drawAllFaces ||
1207                                                 (doDraw[5] == 1 || doDraw[1] == 1))) {
1208                                         for (int i = 0; i < 4; i++) {
1209                                                 vertices[i].Pos.rotateXZBy(180);
1210                                                 vertices[i].Pos.rotateYZBy(10);
1211                                                 vertices[i].Pos.Z -= 4.0;
1212                                         }
1213                                 } else if (j == 2 && (drawAllFaces ||
1214                                                 (doDraw[2] == 1 || doDraw[1] == 1))) {
1215                                         for (int i = 0; i < 4; i++) {
1216                                                 vertices[i].Pos.rotateXZBy(270);
1217                                                 vertices[i].Pos.rotateXYBy(10);
1218                                                 vertices[i].Pos.X += 4.0;
1219                                         }
1220                                 } else if (j == 3 && (drawAllFaces ||
1221                                                 (doDraw[4] == 1 || doDraw[1] == 1))) {
1222                                         for (int i = 0; i < 4; i++) {
1223                                                 vertices[i].Pos.rotateYZBy(-10);
1224                                                 vertices[i].Pos.Z += 4.0;
1225                                         }
1226                                 // Center cross-flames
1227                                 } else if (j == 4 && (drawAllFaces || doDraw[1] == 1)) {
1228                                         for (int i = 0; i < 4; i++) {
1229                                                 vertices[i].Pos.rotateXZBy(45);
1230                                         }
1231                                 } else if (j == 5 && (drawAllFaces || doDraw[1] == 1)) {
1232                                         for (int i = 0; i < 4; i++) {
1233                                                 vertices[i].Pos.rotateXZBy(-45);
1234                                         }
1235                                 // Render flames on bottom of node above
1236                                 } else if (j == 0 && doDraw[0] == 1 && doDraw[1] == 0) {
1237                                         for (int i = 0; i < 4; i++) {
1238                                                 vertices[i].Pos.rotateYZBy(70);
1239                                                 vertices[i].Pos.rotateXZBy(90);
1240                                                 vertices[i].Pos.Y += 4.84;
1241                                                 vertices[i].Pos.X -= 4.7;
1242                                         }
1243                                 } else if (j == 1 && doDraw[0] == 1 && doDraw[1] == 0) {
1244                                         for (int i = 0; i < 4; i++) {
1245                                                 vertices[i].Pos.rotateYZBy(70);
1246                                                 vertices[i].Pos.rotateXZBy(180);
1247                                                 vertices[i].Pos.Y += 4.84;
1248                                                 vertices[i].Pos.Z -= 4.7;
1249                                         }
1250                                 } else if (j == 2 && doDraw[0] == 1 && doDraw[1] == 0) {
1251                                         for (int i = 0; i < 4; i++) {
1252                                                 vertices[i].Pos.rotateYZBy(70);
1253                                                 vertices[i].Pos.rotateXZBy(270);
1254                                                 vertices[i].Pos.Y += 4.84;
1255                                                 vertices[i].Pos.X += 4.7;
1256                                         }
1257                                 } else if (j == 3 && doDraw[0] == 1 && doDraw[1] == 0) {
1258                                         for (int i = 0; i < 4; i++) {
1259                                                 vertices[i].Pos.rotateYZBy(70);
1260                                                 vertices[i].Pos.Y += 4.84;
1261                                                 vertices[i].Pos.Z += 4.7;
1262                                         }
1263                                 } else {
1264                                         // Skip faces that aren't adjacent to a node
1265                                         continue;
1266                                 }
1267
1268                                 for (int i = 0; i < 4; i++) {
1269                                         vertices[i].Pos *= f.visual_scale;
1270                                         vertices[i].Pos += intToFloat(p, BS);
1271                                 }
1272
1273                                 u16 indices[] = {0, 1, 2, 2, 3, 0};
1274                                 // Add to mesh collector
1275                                 collector.append(tile, vertices, 4, indices, 6);
1276                         }
1277                 break;}
1278                 case NDT_FENCELIKE:
1279                 {
1280                         TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
1281                         TileSpec tile_nocrack = tile;
1282                         tile_nocrack.material_flags &= ~MATERIAL_FLAG_CRACK;
1283
1284                         // Put wood the right way around in the posts
1285                         TileSpec tile_rot = tile;
1286                         tile_rot.rotation = 1;
1287
1288                         u16 l = getInteriorLight(n, 1, nodedef);
1289                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
1290
1291                         const f32 post_rad=(f32)BS/8;
1292                         const f32 bar_rad=(f32)BS/16;
1293                         const f32 bar_len=(f32)(BS/2)-post_rad;
1294
1295                         v3f pos = intToFloat(p, BS);
1296
1297                         // The post - always present
1298                         aabb3f post(-post_rad,-BS/2,-post_rad,post_rad,BS/2,post_rad);
1299                         post.MinEdge += pos;
1300                         post.MaxEdge += pos;
1301                         f32 postuv[24]={
1302                                         6/16.,6/16.,10/16.,10/16.,
1303                                         6/16.,6/16.,10/16.,10/16.,
1304                                         0/16.,0,4/16.,1,
1305                                         4/16.,0,8/16.,1,
1306                                         8/16.,0,12/16.,1,
1307                                         12/16.,0,16/16.,1};
1308                         makeCuboid(&collector, post, &tile_rot, 1, c, postuv);
1309
1310                         // Now a section of fence, +X, if there's a post there
1311                         v3s16 p2 = p;
1312                         p2.X++;
1313                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
1314                         const ContentFeatures *f2 = &nodedef->get(n2);
1315                         if(f2->drawtype == NDT_FENCELIKE)
1316                         {
1317                                 aabb3f bar(-bar_len+BS/2,-bar_rad+BS/4,-bar_rad,
1318                                                 bar_len+BS/2,bar_rad+BS/4,bar_rad);
1319                                 bar.MinEdge += pos;
1320                                 bar.MaxEdge += pos;
1321                                 f32 xrailuv[24]={
1322                                         0/16.,2/16.,16/16.,4/16.,
1323                                         0/16.,4/16.,16/16.,6/16.,
1324                                         6/16.,6/16.,8/16.,8/16.,
1325                                         10/16.,10/16.,12/16.,12/16.,
1326                                         0/16.,8/16.,16/16.,10/16.,
1327                                         0/16.,14/16.,16/16.,16/16.};
1328                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
1329                                                 c, xrailuv);
1330                                 bar.MinEdge.Y -= BS/2;
1331                                 bar.MaxEdge.Y -= BS/2;
1332                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
1333                                                 c, xrailuv);
1334                         }
1335
1336                         // Now a section of fence, +Z, if there's a post there
1337                         p2 = p;
1338                         p2.Z++;
1339                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
1340                         f2 = &nodedef->get(n2);
1341                         if(f2->drawtype == NDT_FENCELIKE)
1342                         {
1343                                 aabb3f bar(-bar_rad,-bar_rad+BS/4,-bar_len+BS/2,
1344                                                 bar_rad,bar_rad+BS/4,bar_len+BS/2);
1345                                 bar.MinEdge += pos;
1346                                 bar.MaxEdge += pos;
1347                                 f32 zrailuv[24]={
1348                                         3/16.,1/16.,5/16.,5/16., // cannot rotate; stretch
1349                                         4/16.,1/16.,6/16.,5/16., // for wood texture instead
1350                                         0/16.,9/16.,16/16.,11/16.,
1351                                         0/16.,6/16.,16/16.,8/16.,
1352                                         6/16.,6/16.,8/16.,8/16.,
1353                                         10/16.,10/16.,12/16.,12/16.};
1354                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
1355                                                 c, zrailuv);
1356                                 bar.MinEdge.Y -= BS/2;
1357                                 bar.MaxEdge.Y -= BS/2;
1358                                 makeCuboid(&collector, bar, &tile_nocrack, 1,
1359                                                 c, zrailuv);
1360                         }
1361                 break;}
1362                 case NDT_RAILLIKE:
1363                 {
1364                         bool is_rail_x[6]; /* (-1,-1,0) X (1,-1,0) (-1,0,0) X (1,0,0) (-1,1,0) X (1,1,0) */
1365                         bool is_rail_z[6];
1366
1367                         content_t thiscontent = n.getContent();
1368                         std::string groupname = "connect_to_raillike"; // name of the group that enables connecting to raillike nodes of different kind
1369                         int self_group = ((ItemGroupList) nodedef->get(n).groups)[groupname];
1370
1371                         u8 index = 0;
1372                         for (s8 y0 = -1; y0 <= 1; y0++) {
1373                                 // Prevent from indexing never used coordinates
1374                                 for (s8 xz = -1; xz <= 1; xz++) {
1375                                         if (xz == 0)
1376                                                 continue;
1377                                         MapNode n_xy = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x + xz, y + y0, z));
1378                                         MapNode n_zy = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y + y0, z + xz));
1379                                         ContentFeatures def_xy = nodedef->get(n_xy);
1380                                         ContentFeatures def_zy = nodedef->get(n_zy);
1381
1382                                         // Check if current node would connect with the rail
1383                                         is_rail_x[index] = ((def_xy.drawtype == NDT_RAILLIKE
1384                                                         && ((ItemGroupList) def_xy.groups)[groupname] == self_group)
1385                                                         || n_xy.getContent() == thiscontent);
1386
1387                                         is_rail_z[index] = ((def_zy.drawtype == NDT_RAILLIKE
1388                                                         && ((ItemGroupList) def_zy.groups)[groupname] == self_group)
1389                                                         || n_zy.getContent() == thiscontent);
1390                                         index++;
1391                                 }
1392                         }
1393
1394                         bool is_rail_x_all[2]; // [0] = negative x, [1] = positive x coordinate from the current node position
1395                         bool is_rail_z_all[2];
1396                         is_rail_x_all[0] = is_rail_x[0] || is_rail_x[2] || is_rail_x[4];
1397                         is_rail_x_all[1] = is_rail_x[1] || is_rail_x[3] || is_rail_x[5];
1398                         is_rail_z_all[0] = is_rail_z[0] || is_rail_z[2] || is_rail_z[4];
1399                         is_rail_z_all[1] = is_rail_z[1] || is_rail_z[3] || is_rail_z[5];
1400
1401                         // reasonable default, flat straight unrotated rail
1402                         bool is_straight = true;
1403                         int adjacencies = 0;
1404                         int angle = 0;
1405                         u8 tileindex = 0;
1406
1407                         // check for sloped rail
1408                         if (is_rail_x[4] || is_rail_x[5] || is_rail_z[4] || is_rail_z[5]) {
1409                                 adjacencies = 5; // 5 means sloped
1410                                 is_straight = true; // sloped is always straight
1411                         } else {
1412                                 // is really straight, rails on both sides
1413                                 is_straight = (is_rail_x_all[0] && is_rail_x_all[1]) || (is_rail_z_all[0] && is_rail_z_all[1]);
1414                                 adjacencies = is_rail_x_all[0] + is_rail_x_all[1] + is_rail_z_all[0] + is_rail_z_all[1];
1415                         }
1416
1417                         switch (adjacencies) {
1418                         case 1:
1419                                 if (is_rail_x_all[0] || is_rail_x_all[1])
1420                                         angle = 90;
1421                                 break;
1422                         case 2:
1423                                 if (!is_straight)
1424                                         tileindex = 1; // curved
1425                                 if (is_rail_x_all[0] && is_rail_x_all[1])
1426                                         angle = 90;
1427                                 if (is_rail_z_all[0] && is_rail_z_all[1]) {
1428                                         if (is_rail_z[4])
1429                                                 angle = 180;
1430                                 }
1431                                 else if (is_rail_x_all[0] && is_rail_z_all[0])
1432                                         angle = 270;
1433                                 else if (is_rail_x_all[0] && is_rail_z_all[1])
1434                                         angle = 180;
1435                                 else if (is_rail_x_all[1] && is_rail_z_all[1])
1436                                         angle = 90;
1437                                 break;
1438                         case 3:
1439                                 // here is where the potential to 'switch' a junction is, but not implemented at present
1440                                 tileindex = 2; // t-junction
1441                                 if(!is_rail_x_all[1])
1442                                         angle = 180;
1443                                 if(!is_rail_z_all[0])
1444                                         angle = 90;
1445                                 if(!is_rail_z_all[1])
1446                                         angle = 270;
1447                                 break;
1448                         case 4:
1449                                 tileindex = 3; // crossing
1450                                 break;
1451                         case 5: //sloped
1452                                 if (is_rail_z[4])
1453                                         angle = 180;
1454                                 if (is_rail_x[4])
1455                                         angle = 90;
1456                                 if (is_rail_x[5])
1457                                         angle = -90;
1458                                 break;
1459                         default:
1460                                 break;
1461                         }
1462
1463                         TileSpec tile = getNodeTileN(n, p, tileindex, data);
1464                         tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
1465                         tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
1466
1467                         u16 l = getInteriorLight(n, 0, nodedef);
1468                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
1469
1470                         float d = (float)BS/64;
1471                         float s = BS/2;
1472
1473                         short g = -1;
1474                         if (is_rail_x[4] || is_rail_x[5] || is_rail_z[4] || is_rail_z[5])
1475                                 g = 1; //Object is at a slope
1476
1477                         video::S3DVertex vertices[4] =
1478                         {
1479                                         video::S3DVertex(-s,  -s+d,-s,  0,0,0,  c,0,1),
1480                                         video::S3DVertex( s,  -s+d,-s,  0,0,0,  c,1,1),
1481                                         video::S3DVertex( s, g*s+d, s,  0,0,0,  c,1,0),
1482                                         video::S3DVertex(-s, g*s+d, s,  0,0,0,  c,0,0),
1483                         };
1484
1485                         for(s32 i=0; i<4; i++)
1486                         {
1487                                 if(angle != 0)
1488                                         vertices[i].Pos.rotateXZBy(angle);
1489                                 vertices[i].Pos += intToFloat(p, BS);
1490                         }
1491
1492                         u16 indices[] = {0,1,2,2,3,0};
1493                         collector.append(tile, vertices, 4, indices, 6);
1494                 break;}
1495                 case NDT_NODEBOX:
1496                 {
1497                         static const v3s16 tile_dirs[6] = {
1498                                 v3s16(0, 1, 0),
1499                                 v3s16(0, -1, 0),
1500                                 v3s16(1, 0, 0),
1501                                 v3s16(-1, 0, 0),
1502                                 v3s16(0, 0, 1),
1503                                 v3s16(0, 0, -1)
1504                         };
1505                         TileSpec tiles[6];
1506
1507                         u16 l = getInteriorLight(n, 1, nodedef);
1508                         video::SColor c = MapBlock_LightColor(255, l, f.light_source);
1509
1510                         v3f pos = intToFloat(p, BS);
1511
1512                         int neighbors = 0;
1513
1514                         // locate possible neighboring nodes to connect to
1515                         if (f.node_box.type == NODEBOX_CONNECTED) {
1516                                 v3s16 p2 = p;
1517
1518                                 p2.Y++;
1519                                 getNeighborConnectingFace(blockpos_nodes + p2, nodedef, data, n, 1, &neighbors);
1520
1521                                 p2 = p;
1522                                 p2.Y--;
1523                                 getNeighborConnectingFace(blockpos_nodes + p2, nodedef, data, n, 2, &neighbors);
1524
1525                                 p2 = p;
1526                                 p2.Z--;
1527                                 getNeighborConnectingFace(blockpos_nodes + p2, nodedef, data, n, 4, &neighbors);
1528
1529                                 p2 = p;
1530                                 p2.X--;
1531                                 getNeighborConnectingFace(blockpos_nodes + p2, nodedef, data, n, 8, &neighbors);
1532
1533                                 p2 = p;
1534                                 p2.Z++;
1535                                 getNeighborConnectingFace(blockpos_nodes + p2, nodedef, data, n, 16, &neighbors);
1536
1537                                 p2 = p;
1538                                 p2.X++;
1539                                 getNeighborConnectingFace(blockpos_nodes + p2, nodedef, data, n, 32, &neighbors);
1540                         }
1541
1542                         std::vector<aabb3f> boxes;
1543                         n.getNodeBoxes(nodedef, &boxes, neighbors);
1544                         for(std::vector<aabb3f>::iterator
1545                                         i = boxes.begin();
1546                                         i != boxes.end(); ++i)
1547                         {
1548                         for(int j = 0; j < 6; j++)
1549                                 {
1550                                 // Handles facedir rotation for textures
1551                                 tiles[j] = getNodeTile(n, p, tile_dirs[j], data);
1552                                 }
1553                                 aabb3f box = *i;
1554                                 box.MinEdge += pos;
1555                                 box.MaxEdge += pos;
1556
1557                                 f32 temp;
1558                                 if (box.MinEdge.X > box.MaxEdge.X)
1559                                 {
1560                                         temp=box.MinEdge.X;
1561                                         box.MinEdge.X=box.MaxEdge.X;
1562                                         box.MaxEdge.X=temp;
1563                                 }
1564                                 if (box.MinEdge.Y > box.MaxEdge.Y)
1565                                 {
1566                                         temp=box.MinEdge.Y;
1567                                         box.MinEdge.Y=box.MaxEdge.Y;
1568                                         box.MaxEdge.Y=temp;
1569                                 }
1570                                 if (box.MinEdge.Z > box.MaxEdge.Z)
1571                                 {
1572                                         temp=box.MinEdge.Z;
1573                                         box.MinEdge.Z=box.MaxEdge.Z;
1574                                         box.MaxEdge.Z=temp;
1575                                 }
1576
1577                                 //
1578                                 // Compute texture coords
1579                                 f32 tx1 = (box.MinEdge.X/BS)+0.5;
1580                                 f32 ty1 = (box.MinEdge.Y/BS)+0.5;
1581                                 f32 tz1 = (box.MinEdge.Z/BS)+0.5;
1582                                 f32 tx2 = (box.MaxEdge.X/BS)+0.5;
1583                                 f32 ty2 = (box.MaxEdge.Y/BS)+0.5;
1584                                 f32 tz2 = (box.MaxEdge.Z/BS)+0.5;
1585                                 f32 txc[24] = {
1586                                         // up
1587                                         tx1, 1-tz2, tx2, 1-tz1,
1588                                         // down
1589                                         tx1, tz1, tx2, tz2,
1590                                         // right
1591                                         tz1, 1-ty2, tz2, 1-ty1,
1592                                         // left
1593                                         1-tz2, 1-ty2, 1-tz1, 1-ty1,
1594                                         // back
1595                                         1-tx2, 1-ty2, 1-tx1, 1-ty1,
1596                                         // front
1597                                         tx1, 1-ty2, tx2, 1-ty1,
1598                                 };
1599                                 makeCuboid(&collector, box, tiles, 6, c, txc);
1600                         }
1601                 break;}
1602                 case NDT_MESH:
1603                 {
1604                         v3f pos = intToFloat(p, BS);
1605                         video::SColor c = MapBlock_LightColor(255, getInteriorLight(n, 1, nodedef), f.light_source);
1606
1607                         u8 facedir = 0;
1608                         if (f.param_type_2 == CPT2_FACEDIR) {
1609                                 facedir = n.getFaceDir(nodedef);
1610                         } else if (f.param_type_2 == CPT2_WALLMOUNTED) {
1611                                 //convert wallmounted to 6dfacedir.
1612                                 //when cache enabled, it is already converted
1613                                 facedir = n.getWallMounted(nodedef);
1614                                 if (!enable_mesh_cache) {
1615                                         static const u8 wm_to_6d[6] = {20, 0, 16+1, 12+3, 8, 4+2};
1616                                         facedir = wm_to_6d[facedir];
1617                                 }
1618                         }
1619
1620                         if (f.mesh_ptr[facedir]) {
1621                                 // use cached meshes
1622                                 for(u16 j = 0; j < f.mesh_ptr[0]->getMeshBufferCount(); j++) {
1623                                         scene::IMeshBuffer *buf = f.mesh_ptr[facedir]->getMeshBuffer(j);
1624                                         collector.append(getNodeTileN(n, p, j, data),
1625                                                 (video::S3DVertex *)buf->getVertices(), buf->getVertexCount(),
1626                                                 buf->getIndices(), buf->getIndexCount(), pos, c);
1627                                 }
1628                         } else if (f.mesh_ptr[0]) {
1629                                 // no cache, clone and rotate mesh
1630                                 scene::IMesh* mesh = cloneMesh(f.mesh_ptr[0]);
1631                                 rotateMeshBy6dFacedir(mesh, facedir);
1632                                 recalculateBoundingBox(mesh);
1633                                 meshmanip->recalculateNormals(mesh, true, false);
1634                                 for(u16 j = 0; j < mesh->getMeshBufferCount(); j++) {
1635                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
1636                                         collector.append(getNodeTileN(n, p, j, data),
1637                                                 (video::S3DVertex *)buf->getVertices(), buf->getVertexCount(),
1638                                                 buf->getIndices(), buf->getIndexCount(), pos, c);
1639                                 }
1640                                 mesh->drop();
1641                         }
1642                 break;}
1643                 }
1644         }
1645 }
1646