src/content_mapblock.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "content_mapblock.h"
  21
  22 #include "main.h" // For g_settings
  23 #include "mineral.h"
  24 #include "mapblock_mesh.h" // For MapBlock_LightColor()
  25 #include "settings.h"
  26 #include "nodedef.h"
  27 #include "gamedef.h"
  28
  29 #ifndef SERVER
  30 // Create a cuboid.
  31 //  material  - the material to use (for all 6 faces)
  32 //  collector - the MeshCollector for the resulting polygons
  33 //  pa        - texture atlas pointer for the material
  34 //  c         - vertex colour - used for all
  35 //  pos       - the position of the centre of the cuboid
  36 //  rz,ry,rz  - the radius of the cuboid in each dimension
  37 //  txc       - texture coordinates - this is a list of texture coordinates
  38 //              for the opposite corners of each face - therefore, there
  39 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  40 //              NULL to use the entire texture for each face. The order of
  41 //              the faces in the list is top-backi-right-front-left-bottom
  42 //              If you specified 0,0,1,1 for each face, that would be the
  43 //              same as passing NULL.
  44 void makeCuboid(video::SMaterial &material, MeshCollector *collector,
  45         AtlasPointer* pa, video::SColor &c,
  46         v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
  47 {
  48         f32 tu0=pa->x0();
  49         f32 tu1=pa->x1();
  50         f32 tv0=pa->y0();
  51         f32 tv1=pa->y1();
  52         f32 txus=tu1-tu0;
  53         f32 txvs=tv1-tv0;
  54
  55         video::S3DVertex v[4] =
  56         {
  57                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
  58                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
  59                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
  60                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
  61         };
  62
  63         for(int i=0;i<6;i++)
  64         {
  65                 switch(i)
  66                 {
  67                         case 0: // top
  68                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  69                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  70                                 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
  71                                 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
  72                                 break;
  73                         case 1: // back
  74                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  75                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  76                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  77                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  78                                 break;
  79                         case 2: //right
  80                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  81                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  82                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  83                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  84                                 break;
  85                         case 3: // front
  86                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  87                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  88                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  89                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  90                                 break;
  91                         case 4: // left
  92                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  93                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  94                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  95                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  96                                 break;
  97                         case 5: // bottom
  98                                 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
  99                                 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
 100                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
 101                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
 102                                 break;
 103                 }
 104
 105                 if(txc!=NULL)
 106                 {
 107                         v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
 108                         v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
 109                         v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
 110                         v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
 111                         txc+=4;
 112                 }
 113
 114                 for(u16 i=0; i<4; i++)
 115                         v[i].Pos += pos;
 116                 u16 indices[] = {0,1,2,2,3,0};
 117                 collector->append(material, v, 4, indices, 6);
 118
 119         }
 120
 121 }
 122 #endif
 123
 124 #ifndef SERVER
 125 void mapblock_mesh_generate_special(MeshMakeData *data,
 126                 MeshCollector &collector, IGameDef *gamedef)
 127 {
 128         INodeDefManager *nodedef = gamedef->ndef();
 129
 130         // 0ms
 131         //TimeTaker timer("mapblock_mesh_generate_special()");
 132
 133         /*
 134                 Some settings
 135         */
 136         bool new_style_water = g_settings->getBool("new_style_water");
 137
 138         float node_liquid_level = 1.0;
 139         if(new_style_water)
 140                 node_liquid_level = 0.85;
 141
 142         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 143
 144         /*// General ground material for special output
 145         // Texture is modified just before usage
 146         video::SMaterial material_general;
 147         material_general.setFlag(video::EMF_LIGHTING, false);
 148         material_general.setFlag(video::EMF_BILINEAR_FILTER, false);
 149         material_general.setFlag(video::EMF_FOG_ENABLE, true);
 150         material_general.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;*/
 151
 152         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 153         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 154         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 155         {
 156                 v3s16 p(x,y,z);
 157
 158                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 159                 const ContentFeatures &f = nodedef->get(n);
 160
 161                 // Only solidness=0 stuff is drawn here
 162                 if(f.solidness != 0)
 163                         continue;
 164
 165                 switch(f.drawtype){
 166                 default:
 167                         infostream<<"Got "<<f.drawtype<<std::endl;
 168                         assert(0);
 169                         break;
 170                 case NDT_AIRLIKE:
 171                         break;
 172                 case NDT_LIQUID:
 173                 {
 174                         /*
 175                                 Add water sources to mesh if using new style
 176                         */
 177                         assert(nodedef->get(n).special_materials[0]);
 178                         //assert(nodedef->get(n).special_materials[1]);
 179                         assert(nodedef->get(n).special_aps[0]);
 180
 181                         video::SMaterial &liquid_material =
 182                                         *nodedef->get(n).special_materials[0];
 183                         /*video::SMaterial &liquid_material_bfculled =
 184                                         *nodedef->get(n).special_materials[1];*/
 185                         AtlasPointer &pa_liquid1 =
 186                                         *nodedef->get(n).special_aps[0];
 187
 188                         bool top_is_air = false;
 189                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 190                         if(n.getContent() == CONTENT_AIR)
 191                                 top_is_air = true;
 192
 193                         if(top_is_air == false)
 194                                 continue;
 195
 196                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio, nodedef));
 197                         video::SColor c = MapBlock_LightColor(
 198                                         nodedef->get(n).alpha, l);
 199
 200                         video::S3DVertex vertices[4] =
 201                         {
 202                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 203                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 204                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 205                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 206                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 207                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 208                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 209                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 210                         };
 211
 212                         for(s32 i=0; i<4; i++)
 213                         {
 214                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 215                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 216                         }
 217
 218                         u16 indices[] = {0,1,2,2,3,0};
 219                         // Add to mesh collector
 220                         collector.append(liquid_material, vertices, 4, indices, 6);
 221                 break;}
 222                 case NDT_FLOWINGLIQUID:
 223                 {
 224                         /*
 225                                 Add flowing liquid to mesh
 226                         */
 227                         assert(nodedef->get(n).special_materials[0]);
 228                         assert(nodedef->get(n).special_materials[1]);
 229                         assert(nodedef->get(n).special_aps[0]);
 230
 231                         video::SMaterial &liquid_material =
 232                                         *nodedef->get(n).special_materials[0];
 233                         video::SMaterial &liquid_material_bfculled =
 234                                         *nodedef->get(n).special_materials[1];
 235                         AtlasPointer &pa_liquid1 =
 236                                         *nodedef->get(n).special_aps[0];
 237
 238                         bool top_is_same_liquid = false;
 239                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 240                         content_t c_flowing = nodedef->getId(nodedef->get(n).liquid_alternative_flowing);
 241                         content_t c_source = nodedef->getId(nodedef->get(n).liquid_alternative_source);
 242                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 243                                 top_is_same_liquid = true;
 244
 245                         u8 l = 0;
 246                         // Use the light of the node on top if possible
 247                         if(nodedef->get(ntop).param_type == CPT_LIGHT)
 248                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio, nodedef));
 249                         // Otherwise use the light of this node (the liquid)
 250                         else
 251                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio, nodedef));
 252                         video::SColor c = MapBlock_LightColor(
 253                                         nodedef->get(n).alpha, l);
 254
 255                         // Neighbor liquid levels (key = relative position)
 256                         // Includes current node
 257                         core::map<v3s16, f32> neighbor_levels;
 258                         core::map<v3s16, content_t> neighbor_contents;
 259                         core::map<v3s16, u8> neighbor_flags;
 260                         const u8 neighborflag_top_is_same_liquid = 0x01;
 261                         v3s16 neighbor_dirs[9] = {
 262                                 v3s16(0,0,0),
 263                                 v3s16(0,0,1),
 264                                 v3s16(0,0,-1),
 265                                 v3s16(1,0,0),
 266                                 v3s16(-1,0,0),
 267                                 v3s16(1,0,1),
 268                                 v3s16(-1,0,-1),
 269                                 v3s16(1,0,-1),
 270                                 v3s16(-1,0,1),
 271                         };
 272                         for(u32 i=0; i<9; i++)
 273                         {
 274                                 content_t content = CONTENT_AIR;
 275                                 float level = -0.5 * BS;
 276                                 u8 flags = 0;
 277                                 // Check neighbor
 278                                 v3s16 p2 = p + neighbor_dirs[i];
 279                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 280                                 if(n2.getContent() != CONTENT_IGNORE)
 281                                 {
 282                                         content = n2.getContent();
 283
 284                                         if(n2.getContent() == c_source)
 285                                                 level = (-0.5+node_liquid_level) * BS;
 286                                         else if(n2.getContent() == c_flowing)
 287                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 288                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 289
 290                                         // Check node above neighbor.
 291                                         // NOTE: This doesn't get executed if neighbor
 292                                         //       doesn't exist
 293                                         p2.Y += 1;
 294                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 295                                         if(n2.getContent() == c_source ||
 296                                                         n2.getContent() == c_flowing)
 297                                                 flags |= neighborflag_top_is_same_liquid;
 298                                 }
 299
 300                                 neighbor_levels.insert(neighbor_dirs[i], level);
 301                                 neighbor_contents.insert(neighbor_dirs[i], content);
 302                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 303                         }
 304
 305                         // Corner heights (average between four liquids)
 306                         f32 corner_levels[4];
 307
 308                         v3s16 halfdirs[4] = {
 309                                 v3s16(0,0,0),
 310                                 v3s16(1,0,0),
 311                                 v3s16(1,0,1),
 312                                 v3s16(0,0,1),
 313                         };
 314                         for(u32 i=0; i<4; i++)
 315                         {
 316                                 v3s16 cornerdir = halfdirs[i];
 317                                 float cornerlevel = 0;
 318                                 u32 valid_count = 0;
 319                                 u32 air_count = 0;
 320                                 for(u32 j=0; j<4; j++)
 321                                 {
 322                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 323                                         content_t content = neighbor_contents[neighbordir];
 324                                         // If top is liquid, draw starting from top of node
 325                                         if(neighbor_flags[neighbordir] &
 326                                                         neighborflag_top_is_same_liquid)
 327                                         {
 328                                                 cornerlevel = 0.5*BS;
 329                                                 valid_count = 1;
 330                                                 break;
 331                                         }
 332                                         // Source is always the same height
 333                                         else if(content == c_source)
 334                                         {
 335                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 336                                                 valid_count = 1;
 337                                                 break;
 338                                         }
 339                                         // Flowing liquid has level information
 340                                         else if(content == c_flowing)
 341                                         {
 342                                                 cornerlevel += neighbor_levels[neighbordir];
 343                                                 valid_count++;
 344                                         }
 345                                         else if(content == CONTENT_AIR)
 346                                         {
 347                                                 air_count++;
 348                                         }
 349                                 }
 350                                 if(air_count >= 2)
 351                                         cornerlevel = -0.5*BS;
 352                                 else if(valid_count > 0)
 353                                         cornerlevel /= valid_count;
 354                                 corner_levels[i] = cornerlevel;
 355                         }
 356
 357                         /*
 358                                 Generate sides
 359                         */
 360
 361                         v3s16 side_dirs[4] = {
 362                                 v3s16(1,0,0),
 363                                 v3s16(-1,0,0),
 364                                 v3s16(0,0,1),
 365                                 v3s16(0,0,-1),
 366                         };
 367                         s16 side_corners[4][2] = {
 368                                 {1, 2},
 369                                 {3, 0},
 370                                 {2, 3},
 371                                 {0, 1},
 372                         };
 373                         for(u32 i=0; i<4; i++)
 374                         {
 375                                 v3s16 dir = side_dirs[i];
 376
 377                                 /*
 378                                         If our topside is liquid and neighbor's topside
 379                                         is liquid, don't draw side face
 380                                 */
 381                                 if(top_is_same_liquid &&
 382                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 383                                         continue;
 384
 385                                 content_t neighbor_content = neighbor_contents[dir];
 386                                 const ContentFeatures &n_feat = nodedef->get(neighbor_content);
 387
 388                                 // Don't draw face if neighbor is blocking the view
 389                                 if(n_feat.solidness == 2)
 390                                         continue;
 391
 392                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 393                                                 || neighbor_content == c_flowing);
 394
 395                                 // Don't draw any faces if neighbor same is liquid and top is
 396                                 // same liquid
 397                                 if(neighbor_is_same_liquid == true
 398                                                 && top_is_same_liquid == false)
 399                                         continue;
 400
 401                                 // Use backface culled material if neighbor doesn't have a
 402                                 // solidness of 0
 403                                 video::SMaterial *current_material = &liquid_material;
 404                                 if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
 405                                         current_material = &liquid_material_bfculled;
 406
 407                                 video::S3DVertex vertices[4] =
 408                                 {
 409                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 410                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 411                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 412                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 413                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 414                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 415                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 416                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 417                                 };
 418
 419                                 /*
 420                                         If our topside is liquid, set upper border of face
 421                                         at upper border of node
 422                                 */
 423                                 if(top_is_same_liquid)
 424                                 {
 425                                         vertices[2].Pos.Y = 0.5*BS;
 426                                         vertices[3].Pos.Y = 0.5*BS;
 427                                 }
 428                                 /*
 429                                         Otherwise upper position of face is corner levels
 430                                 */
 431                                 else
 432                                 {
 433                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 434                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 435                                 }
 436
 437                                 /*
 438                                         If neighbor is liquid, lower border of face is corner
 439                                         liquid levels
 440                                 */
 441                                 if(neighbor_is_same_liquid)
 442                                 {
 443                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 444                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 445                                 }
 446                                 /*
 447                                         If neighbor is not liquid, lower border of face is
 448                                         lower border of node
 449                                 */
 450                                 else
 451                                 {
 452                                         vertices[0].Pos.Y = -0.5*BS;
 453                                         vertices[1].Pos.Y = -0.5*BS;
 454                                 }
 455
 456                                 for(s32 j=0; j<4; j++)
 457                                 {
 458                                         if(dir == v3s16(0,0,1))
 459                                                 vertices[j].Pos.rotateXZBy(0);
 460                                         if(dir == v3s16(0,0,-1))
 461                                                 vertices[j].Pos.rotateXZBy(180);
 462                                         if(dir == v3s16(-1,0,0))
 463                                                 vertices[j].Pos.rotateXZBy(90);
 464                                         if(dir == v3s16(1,0,-0))
 465                                                 vertices[j].Pos.rotateXZBy(-90);
 466
 467                                         // Do this to not cause glitches when two liquids are
 468                                         // side-by-side
 469                                         /*if(neighbor_is_same_liquid == false){
 470                                                 vertices[j].Pos.X *= 0.98;
 471                                                 vertices[j].Pos.Z *= 0.98;
 472                                         }*/
 473
 474                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 475                                 }
 476
 477                                 u16 indices[] = {0,1,2,2,3,0};
 478                                 // Add to mesh collector
 479                                 collector.append(*current_material, vertices, 4, indices, 6);
 480                         }
 481
 482                         /*
 483                                 Generate top side, if appropriate
 484                         */
 485
 486                         if(top_is_same_liquid == false)
 487                         {
 488                                 video::S3DVertex vertices[4] =
 489                                 {
 490                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 491                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 492                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 493                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 494                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 495                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 496                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 497                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 498                                 };
 499
 500                                 // This fixes a strange bug
 501                                 s32 corner_resolve[4] = {3,2,1,0};
 502
 503                                 for(s32 i=0; i<4; i++)
 504                                 {
 505                                         //vertices[i].Pos.Y += liquid_level;
 506                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 507                                         s32 j = corner_resolve[i];
 508                                         vertices[i].Pos.Y += corner_levels[j];
 509                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 510                                 }
 511
 512                                 u16 indices[] = {0,1,2,2,3,0};
 513                                 // Add to mesh collector
 514                                 collector.append(liquid_material, vertices, 4, indices, 6);
 515                         }
 516                 break;}
 517                 case NDT_GLASSLIKE:
 518                 {
 519                         video::SMaterial material_glass;
 520                         material_glass.setFlag(video::EMF_LIGHTING, false);
 521                         material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
 522                         material_glass.setFlag(video::EMF_FOG_ENABLE, true);
 523                         material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 524                         AtlasPointer pa_glass = f.tiles[0].texture;
 525                         material_glass.setTexture(0, pa_glass.atlas);
 526
 527                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio, nodedef)));
 528                         video::SColor c = MapBlock_LightColor(255, l);
 529
 530                         for(u32 j=0; j<6; j++)
 531                         {
 532                                 // Check this neighbor
 533                                 v3s16 n2p = blockpos_nodes + p + g_6dirs[j];
 534                                 MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
 535                                 // Don't make face if neighbor is of same type
 536                                 if(n2.getContent() == n.getContent())
 537                                         continue;
 538
 539                                 // The face at Z+
 540                                 video::S3DVertex vertices[4] =
 541                                 {
 542                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 543                                                 pa_glass.x0(), pa_glass.y1()),
 544                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 545                                                 pa_glass.x1(), pa_glass.y1()),
 546                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 547                                                 pa_glass.x1(), pa_glass.y0()),
 548                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 549                                                 pa_glass.x0(), pa_glass.y0()),
 550                                 };
 551
 552                                 // Rotations in the g_6dirs format
 553                                 if(j == 0) // Z+
 554                                         for(u16 i=0; i<4; i++)
 555                                                 vertices[i].Pos.rotateXZBy(0);
 556                                 else if(j == 1) // Y+
 557                                         for(u16 i=0; i<4; i++)
 558                                                 vertices[i].Pos.rotateYZBy(-90);
 559                                 else if(j == 2) // X+
 560                                         for(u16 i=0; i<4; i++)
 561                                                 vertices[i].Pos.rotateXZBy(-90);
 562                                 else if(j == 3) // Z-
 563                                         for(u16 i=0; i<4; i++)
 564                                                 vertices[i].Pos.rotateXZBy(180);
 565                                 else if(j == 4) // Y-
 566                                         for(u16 i=0; i<4; i++)
 567                                                 vertices[i].Pos.rotateYZBy(90);
 568                                 else if(j == 5) // X-
 569                                         for(u16 i=0; i<4; i++)
 570                                                 vertices[i].Pos.rotateXZBy(90);
 571
 572                                 for(u16 i=0; i<4; i++){
 573                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 574                                 }
 575
 576                                 u16 indices[] = {0,1,2,2,3,0};
 577                                 // Add to mesh collector
 578                                 collector.append(material_glass, vertices, 4, indices, 6);
 579                         }
 580                 break;}
 581                 case NDT_ALLFACES:
 582                 {
 583                         video::SMaterial material_leaves1;
 584                         material_leaves1.setFlag(video::EMF_LIGHTING, false);
 585                         material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
 586                         material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
 587                         material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 588                         AtlasPointer pa_leaves1 = f.tiles[0].texture;
 589                         material_leaves1.setTexture(0, pa_leaves1.atlas);
 590
 591                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio, nodedef)));
 592                         video::SColor c = MapBlock_LightColor(255, l);
 593
 594                         for(u32 j=0; j<6; j++)
 595                         {
 596                                 video::S3DVertex vertices[4] =
 597                                 {
 598                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 599                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 600                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 601                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 602                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 603                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 604                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 605                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 606                                 };
 607
 608                                 // Rotations in the g_6dirs format
 609                                 if(j == 0) // Z+
 610                                         for(u16 i=0; i<4; i++)
 611                                                 vertices[i].Pos.rotateXZBy(0);
 612                                 else if(j == 1) // Y+
 613                                         for(u16 i=0; i<4; i++)
 614                                                 vertices[i].Pos.rotateYZBy(-90);
 615                                 else if(j == 2) // X+
 616                                         for(u16 i=0; i<4; i++)
 617                                                 vertices[i].Pos.rotateXZBy(-90);
 618                                 else if(j == 3) // Z-
 619                                         for(u16 i=0; i<4; i++)
 620                                                 vertices[i].Pos.rotateXZBy(180);
 621                                 else if(j == 4) // Y-
 622                                         for(u16 i=0; i<4; i++)
 623                                                 vertices[i].Pos.rotateYZBy(90);
 624                                 else if(j == 5) // X-
 625                                         for(u16 i=0; i<4; i++)
 626                                                 vertices[i].Pos.rotateXZBy(90);
 627
 628                                 for(u16 i=0; i<4; i++){
 629                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 630                                 }
 631
 632                                 u16 indices[] = {0,1,2,2,3,0};
 633                                 // Add to mesh collector
 634                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 635                         }
 636                 break;}
 637                 case NDT_ALLFACES_OPTIONAL:
 638                         // This is always pre-converted to something else
 639                         assert(0);
 640                         break;
 641                 case NDT_TORCHLIKE:
 642                 {
 643                         v3s16 dir = unpackDir(n.param2);
 644
 645                         AtlasPointer ap(0);
 646                         if(dir == v3s16(0,-1,0)){
 647                                 ap = f.tiles[0].texture; // floor
 648                         } else if(dir == v3s16(0,1,0)){
 649                                 ap = f.tiles[1].texture; // ceiling
 650                         // For backwards compatibility
 651                         } else if(dir == v3s16(0,0,0)){
 652                                 ap = f.tiles[0].texture; // floor
 653                         } else {
 654                                 ap = f.tiles[2].texture; // side
 655                         }
 656
 657                         // Set material
 658                         video::SMaterial material;
 659                         material.setFlag(video::EMF_LIGHTING, false);
 660                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 661                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 662                         material.setFlag(video::EMF_FOG_ENABLE, true);
 663                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 664                         material.MaterialType
 665                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 666                         material.setTexture(0, ap.atlas);
 667
 668                         video::SColor c(255,255,255,255);
 669
 670                         // Wall at X+ of node
 671                         video::S3DVertex vertices[4] =
 672                         {
 673                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 674                                                 ap.x0(), ap.y1()),
 675                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 676                                                 ap.x1(), ap.y1()),
 677                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 678                                                 ap.x1(), ap.y0()),
 679                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 680                                                 ap.x0(), ap.y0()),
 681                         };
 682
 683                         for(s32 i=0; i<4; i++)
 684                         {
 685                                 if(dir == v3s16(1,0,0))
 686                                         vertices[i].Pos.rotateXZBy(0);
 687                                 if(dir == v3s16(-1,0,0))
 688                                         vertices[i].Pos.rotateXZBy(180);
 689                                 if(dir == v3s16(0,0,1))
 690                                         vertices[i].Pos.rotateXZBy(90);
 691                                 if(dir == v3s16(0,0,-1))
 692                                         vertices[i].Pos.rotateXZBy(-90);
 693                                 if(dir == v3s16(0,-1,0))
 694                                         vertices[i].Pos.rotateXZBy(45);
 695                                 if(dir == v3s16(0,1,0))
 696                                         vertices[i].Pos.rotateXZBy(-45);
 697
 698                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 699                         }
 700
 701                         u16 indices[] = {0,1,2,2,3,0};
 702                         // Add to mesh collector
 703                         collector.append(material, vertices, 4, indices, 6);
 704                 break;}
 705                 case NDT_SIGNLIKE:
 706                 {
 707                         // Set material
 708                         video::SMaterial material;
 709                         material.setFlag(video::EMF_LIGHTING, false);
 710                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 711                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 712                         material.setFlag(video::EMF_FOG_ENABLE, true);
 713                         material.MaterialType
 714                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 715                         AtlasPointer ap = f.tiles[0].texture;
 716                         material.setTexture(0, ap.atlas);
 717
 718                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio, nodedef));
 719                         video::SColor c = MapBlock_LightColor(255, l);
 720
 721                         float d = (float)BS/16;
 722                         // Wall at X+ of node
 723                         video::S3DVertex vertices[4] =
 724                         {
 725                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
 726                                                 ap.x0(), ap.y0()),
 727                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
 728                                                 ap.x1(), ap.y0()),
 729                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
 730                                                 ap.x1(), ap.y1()),
 731                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
 732                                                 ap.x0(), ap.y1()),
 733                         };
 734
 735                         v3s16 dir = unpackDir(n.param2);
 736
 737                         for(s32 i=0; i<4; i++)
 738                         {
 739                                 if(dir == v3s16(1,0,0))
 740                                         vertices[i].Pos.rotateXZBy(0);
 741                                 if(dir == v3s16(-1,0,0))
 742                                         vertices[i].Pos.rotateXZBy(180);
 743                                 if(dir == v3s16(0,0,1))
 744                                         vertices[i].Pos.rotateXZBy(90);
 745                                 if(dir == v3s16(0,0,-1))
 746                                         vertices[i].Pos.rotateXZBy(-90);
 747                                 if(dir == v3s16(0,-1,0))
 748                                         vertices[i].Pos.rotateXYBy(-90);
 749                                 if(dir == v3s16(0,1,0))
 750                                         vertices[i].Pos.rotateXYBy(90);
 751
 752                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 753                         }
 754
 755                         u16 indices[] = {0,1,2,2,3,0};
 756                         // Add to mesh collector
 757                         collector.append(material, vertices, 4, indices, 6);
 758                 break;}
 759                 case NDT_PLANTLIKE:
 760                 {
 761                         video::SMaterial material_papyrus;
 762                         material_papyrus.setFlag(video::EMF_LIGHTING, false);
 763                         material_papyrus.setFlag(video::EMF_BILINEAR_FILTER, false);
 764                         material_papyrus.setFlag(video::EMF_FOG_ENABLE, true);
 765                         material_papyrus.MaterialType=video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 766                         AtlasPointer pa_papyrus = f.tiles[0].texture;
 767                         material_papyrus.setTexture(0, pa_papyrus.atlas);
 768
 769                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio, nodedef)));
 770                         video::SColor c = MapBlock_LightColor(255, l);
 771
 772                         for(u32 j=0; j<4; j++)
 773                         {
 774                                 video::S3DVertex vertices[4] =
 775                                 {
 776                                         video::S3DVertex(-BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
 777                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 778                                         video::S3DVertex( BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
 779                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 780                                         video::S3DVertex( BS/2*f.visual_scale,
 781                                                 -BS/2 + f.visual_scale*BS,0, 0,0,0, c,
 782                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 783                                         video::S3DVertex(-BS/2*f.visual_scale,
 784                                                 -BS/2 + f.visual_scale*BS,0, 0,0,0, c,
 785                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 786                                 };
 787
 788                                 if(j == 0)
 789                                 {
 790                                         for(u16 i=0; i<4; i++)
 791                                                 vertices[i].Pos.rotateXZBy(45);
 792                                 }
 793                                 else if(j == 1)
 794                                 {
 795                                         for(u16 i=0; i<4; i++)
 796                                                 vertices[i].Pos.rotateXZBy(-45);
 797                                 }
 798                                 else if(j == 2)
 799                                 {
 800                                         for(u16 i=0; i<4; i++)
 801                                                 vertices[i].Pos.rotateXZBy(135);
 802                                 }
 803                                 else if(j == 3)
 804                                 {
 805                                         for(u16 i=0; i<4; i++)
 806                                                 vertices[i].Pos.rotateXZBy(-135);
 807                                 }
 808
 809                                 for(u16 i=0; i<4; i++)
 810                                 {
 811                                         vertices[i].Pos *= f.visual_scale;
 812                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 813                                 }
 814
 815                                 u16 indices[] = {0,1,2,2,3,0};
 816                                 // Add to mesh collector
 817                                 collector.append(material_papyrus, vertices, 4, indices, 6);
 818                         }
 819                 break;}
 820                 case NDT_FENCELIKE:
 821                 {
 822                         video::SMaterial material_wood;
 823                         material_wood.setFlag(video::EMF_LIGHTING, false);
 824                         material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
 825                         material_wood.setFlag(video::EMF_FOG_ENABLE, true);
 826                         material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 827                         AtlasPointer pa_wood = f.tiles[0].texture;
 828                         material_wood.setTexture(0, pa_wood.atlas);
 829
 830                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio, nodedef)));
 831                         video::SColor c = MapBlock_LightColor(255, l);
 832
 833                         const f32 post_rad=(f32)BS/10;
 834                         const f32 bar_rad=(f32)BS/20;
 835                         const f32 bar_len=(f32)(BS/2)-post_rad;
 836
 837                         // The post - always present
 838                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 839                         f32 postuv[24]={
 840                                         0.4,0.4,0.6,0.6,
 841                                         0.35,0,0.65,1,
 842                                         0.35,0,0.65,1,
 843                                         0.35,0,0.65,1,
 844                                         0.35,0,0.65,1,
 845                                         0.4,0.4,0.6,0.6};
 846                         makeCuboid(material_wood, &collector,
 847                                 &pa_wood, c, pos,
 848                                 post_rad,BS/2,post_rad, postuv);
 849
 850                         // Now a section of fence, +X, if there's a post there
 851                         v3s16 p2 = p;
 852                         p2.X++;
 853                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 854                         const ContentFeatures *f2 = &nodedef->get(n2);
 855                         if(f2->drawtype == NDT_FENCELIKE)
 856                         {
 857                                 pos = intToFloat(p+blockpos_nodes, BS);
 858                                 pos.X += BS/2;
 859                                 pos.Y += BS/4;
 860                                 f32 xrailuv[24]={
 861                                         0,0.4,1,0.6,
 862                                         0,0.4,1,0.6,
 863                                         0,0.4,1,0.6,
 864                                         0,0.4,1,0.6,
 865                                         0,0.4,1,0.6,
 866                                         0,0.4,1,0.6};
 867                                 makeCuboid(material_wood, &collector,
 868                                         &pa_wood, c, pos,
 869                                         bar_len,bar_rad,bar_rad, xrailuv);
 870
 871                                 pos.Y -= BS/2;
 872                                 makeCuboid(material_wood, &collector,
 873                                         &pa_wood, c, pos,
 874                                         bar_len,bar_rad,bar_rad, xrailuv);
 875                         }
 876
 877                         // Now a section of fence, +Z, if there's a post there
 878                         p2 = p;
 879                         p2.Z++;
 880                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 881                         f2 = &nodedef->get(n2);
 882                         if(f2->drawtype == NDT_FENCELIKE)
 883                         {
 884                                 pos = intToFloat(p+blockpos_nodes, BS);
 885                                 pos.Z += BS/2;
 886                                 pos.Y += BS/4;
 887                                 f32 zrailuv[24]={
 888                                         0,0.4,1,0.6,
 889                                         0,0.4,1,0.6,
 890                                         0,0.4,1,0.6,
 891                                         0,0.4,1,0.6,
 892                                         0,0.4,1,0.6,
 893                                         0,0.4,1,0.6};
 894                                 makeCuboid(material_wood, &collector,
 895                                         &pa_wood, c, pos,
 896                                         bar_rad,bar_rad,bar_len, zrailuv);
 897                                 pos.Y -= BS/2;
 898                                 makeCuboid(material_wood, &collector,
 899                                         &pa_wood, c, pos,
 900                                         bar_rad,bar_rad,bar_len, zrailuv);
 901
 902                         }
 903                 break;}
 904                 case NDT_RAILLIKE:
 905                 {
 906                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
 907                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
 908
 909                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
 910                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
 911                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
 912                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
 913
 914                         content_t thiscontent = n.getContent();
 915                         if(n_minus_x.getContent() == thiscontent)
 916                                 is_rail_x[0] = true;
 917                         if(n_plus_x.getContent() == thiscontent)
 918                                 is_rail_x[1] = true;
 919                         if(n_minus_z.getContent() == thiscontent)
 920                                 is_rail_z[0] = true;
 921                         if(n_plus_z.getContent() == thiscontent)
 922                                 is_rail_z[1] = true;
 923
 924                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
 925
 926                         // Assign textures
 927                         AtlasPointer ap = f.tiles[0].texture; // straight
 928                         if(adjacencies < 2)
 929                                 ap = f.tiles[0].texture; // straight
 930                         else if(adjacencies == 2)
 931                         {
 932                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
 933                                         ap = f.tiles[0].texture; // straight
 934                                 else
 935                                         ap = f.tiles[1].texture; // curved
 936                         }
 937                         else if(adjacencies == 3)
 938                                 ap = f.tiles[2].texture; // t-junction
 939                         else if(adjacencies == 4)
 940                                 ap = f.tiles[3].texture; // crossing
 941
 942                         video::SMaterial material_rail;
 943                         material_rail.setFlag(video::EMF_LIGHTING, false);
 944                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
 945                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
 946                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
 947                         material_rail.MaterialType
 948                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 949                         material_rail.setTexture(0, ap.atlas);
 950
 951                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio, nodedef));
 952                         video::SColor c = MapBlock_LightColor(255, l);
 953
 954                         float d = (float)BS/16;
 955                         video::S3DVertex vertices[4] =
 956                         {
 957                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
 958                                                 ap.x0(), ap.y1()),
 959                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
 960                                                 ap.x1(), ap.y1()),
 961                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
 962                                                 ap.x1(), ap.y0()),
 963                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
 964                                                 ap.x0(), ap.y0()),
 965                         };
 966
 967                         // Rotate textures
 968                         int angle = 0;
 969
 970                         if(adjacencies == 1)
 971                         {
 972                                 if(is_rail_x[0] || is_rail_x[1])
 973                                         angle = 90;
 974                         }
 975                         else if(adjacencies == 2)
 976                         {
 977                                 if(is_rail_x[0] && is_rail_x[1])
 978                                         angle = 90;
 979                                 else if(is_rail_x[0] && is_rail_z[0])
 980                                         angle = 270;
 981                                 else if(is_rail_x[0] && is_rail_z[1])
 982                                         angle = 180;
 983                                 else if(is_rail_x[1] && is_rail_z[1])
 984                                         angle = 90;
 985                         }
 986                         else if(adjacencies == 3)
 987                         {
 988                                 if(!is_rail_x[0])
 989                                         angle=0;
 990                                 if(!is_rail_x[1])
 991                                         angle=180;
 992                                 if(!is_rail_z[0])
 993                                         angle=90;
 994                                 if(!is_rail_z[1])
 995                                         angle=270;
 996                         }
 997
 998                         if(angle != 0) {
 999                                 for(u16 i=0; i<4; i++)
1000                                         vertices[i].Pos.rotateXZBy(angle);
1001                         }
1002
1003                         for(s32 i=0; i<4; i++)
1004                         {
1005                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1006                         }
1007
1008                         u16 indices[] = {0,1,2,2,3,0};
1009                         collector.append(material_rail, vertices, 4, indices, 6);
1010                 break;}
1011                 }
1012         }
1013 }
1014 #endif
1015