src/content_mapblock.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "content_mapblock.h"
  21 #include "content_mapnode.h"
  22 #include "main.h" // For g_settings and g_texturesource
  23 #include "mineral.h"
  24 #include "mapblock_mesh.h" // For MapBlock_LightColor()
  25
  26 #ifndef SERVER
  27 // Create a cuboid.
  28 //  material  - the material to use (for all 6 faces)
  29 //  collector - the MeshCollector for the resulting polygons
  30 //  pa        - texture atlas pointer for the material
  31 //  c         - vertex colour - used for all
  32 //  pos       - the position of the centre of the cuboid
  33 //  rz,ry,rz  - the radius of the cuboid in each dimension
  34 //  txc       - texture coordinates - this is a list of texture coordinates
  35 //              for the opposite corners of each face - therefore, there
  36 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  37 //              NULL to use the entire texture for each face. The order of
  38 //              the faces in the list is top-backi-right-front-left-bottom
  39 //              If you specified 0,0,1,1 for each face, that would be the
  40 //              same as passing NULL.
  41 void makeCuboid(video::SMaterial &material, MeshCollector *collector,
  42         AtlasPointer* pa, video::SColor &c,
  43         v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
  44 {
  45         f32 tu0=pa->x0();
  46         f32 tu1=pa->x1();
  47         f32 tv0=pa->y0();
  48         f32 tv1=pa->y1();
  49         f32 txus=tu1-tu0;
  50         f32 txvs=tv1-tv0;
  51
  52         video::S3DVertex v[4] =
  53         {
  54                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
  55                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
  56                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
  57                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
  58         };
  59
  60         for(int i=0;i<6;i++)
  61         {
  62                 switch(i)
  63                 {
  64                         case 0: // top
  65                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  66                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  67                                 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
  68                                 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
  69                                 break;
  70                         case 1: // back
  71                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  72                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  73                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  74                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  75                                 break;
  76                         case 2: //right
  77                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  78                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  79                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  80                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  81                                 break;
  82                         case 3: // front
  83                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  84                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  85                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  86                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  87                                 break;
  88                         case 4: // left
  89                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  90                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  91                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  92                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  93                                 break;
  94                         case 5: // bottom
  95                                 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
  96                                 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
  97                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  98                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  99                                 break;
 100                 }
 101
 102                 if(txc!=NULL)
 103                 {
 104                         v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
 105                         v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
 106                         v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
 107                         v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
 108                         txc+=4;
 109                 }
 110
 111                 for(u16 i=0; i<4; i++)
 112                         v[i].Pos += pos;
 113                 u16 indices[] = {0,1,2,2,3,0};
 114                 collector->append(material, v, 4, indices, 6);
 115
 116         }
 117
 118 }
 119 #endif
 120
 121 #ifndef SERVER
 122 void mapblock_mesh_generate_special(MeshMakeData *data,
 123                 MeshCollector &collector)
 124 {
 125         // 0ms
 126         //TimeTaker timer("mapblock_mesh_generate_special()");
 127
 128         /*
 129                 Some settings
 130         */
 131         bool new_style_water = g_settings.getBool("new_style_water");
 132         bool new_style_leaves = g_settings.getBool("new_style_leaves");
 133         //bool smooth_lighting = g_settings.getBool("smooth_lighting");
 134         bool invisible_stone = g_settings.getBool("invisible_stone");
 135
 136         float node_liquid_level = 1.0;
 137         if(new_style_water)
 138                 node_liquid_level = 0.85;
 139
 140         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 141
 142         // New-style leaves material
 143         video::SMaterial material_leaves1;
 144         material_leaves1.setFlag(video::EMF_LIGHTING, false);
 145         //material_leaves1.setFlag(video::EMF_BACK_FACE_CULLING, false);
 146         material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
 147         material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
 148         material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 149         AtlasPointer pa_leaves1 = g_texturesource->getTexture(
 150                         g_texturesource->getTextureId("leaves.png"));
 151         material_leaves1.setTexture(0, pa_leaves1.atlas);
 152
 153         // Glass material
 154         video::SMaterial material_glass;
 155         material_glass.setFlag(video::EMF_LIGHTING, false);
 156         material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
 157         material_glass.setFlag(video::EMF_FOG_ENABLE, true);
 158         material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 159         AtlasPointer pa_glass = g_texturesource->getTexture(
 160                         g_texturesource->getTextureId("glass.png"));
 161         material_glass.setTexture(0, pa_glass.atlas);
 162
 163         // Wood material
 164         video::SMaterial material_wood;
 165         material_wood.setFlag(video::EMF_LIGHTING, false);
 166         material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
 167         material_wood.setFlag(video::EMF_FOG_ENABLE, true);
 168         material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 169         AtlasPointer pa_wood = g_texturesource->getTexture(
 170                         g_texturesource->getTextureId("wood.png"));
 171         material_wood.setTexture(0, pa_wood.atlas);
 172
 173         // General ground material for special output
 174         // Texture is modified just before usage
 175         video::SMaterial material_general;
 176         material_general.setFlag(video::EMF_LIGHTING, false);
 177         material_general.setFlag(video::EMF_BILINEAR_FILTER, false);
 178         material_general.setFlag(video::EMF_FOG_ENABLE, true);
 179         material_general.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 180
 181
 182         // Papyrus material
 183         video::SMaterial material_papyrus;
 184         material_papyrus.setFlag(video::EMF_LIGHTING, false);
 185         material_papyrus.setFlag(video::EMF_BILINEAR_FILTER, false);
 186         material_papyrus.setFlag(video::EMF_FOG_ENABLE, true);
 187         material_papyrus.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 188         AtlasPointer pa_papyrus = g_texturesource->getTexture(
 189                         g_texturesource->getTextureId("papyrus.png"));
 190         material_papyrus.setTexture(0, pa_papyrus.atlas);
 191
 192         // junglegrass material
 193         video::SMaterial material_junglegrass;
 194         material_junglegrass.setFlag(video::EMF_LIGHTING, false);
 195         material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
 196         material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
 197         material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 198         AtlasPointer pa_junglegrass = g_texturesource->getTexture(
 199                         g_texturesource->getTextureId("junglegrass.png"));
 200         material_junglegrass.setTexture(0, pa_junglegrass.atlas);
 201
 202         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 203         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 204         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 205         {
 206                 v3s16 p(x,y,z);
 207
 208                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 209
 210                 /*
 211                         Add torches to mesh
 212                 */
 213                 if(n.getContent() == CONTENT_TORCH)
 214                 {
 215                         video::SColor c(255,255,255,255);
 216
 217                         // Wall at X+ of node
 218                         video::S3DVertex vertices[4] =
 219                         {
 220                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
 221                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
 222                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
 223                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
 224                         };
 225
 226                         v3s16 dir = unpackDir(n.param2);
 227
 228                         for(s32 i=0; i<4; i++)
 229                         {
 230                                 if(dir == v3s16(1,0,0))
 231                                         vertices[i].Pos.rotateXZBy(0);
 232                                 if(dir == v3s16(-1,0,0))
 233                                         vertices[i].Pos.rotateXZBy(180);
 234                                 if(dir == v3s16(0,0,1))
 235                                         vertices[i].Pos.rotateXZBy(90);
 236                                 if(dir == v3s16(0,0,-1))
 237                                         vertices[i].Pos.rotateXZBy(-90);
 238                                 if(dir == v3s16(0,-1,0))
 239                                         vertices[i].Pos.rotateXZBy(45);
 240                                 if(dir == v3s16(0,1,0))
 241                                         vertices[i].Pos.rotateXZBy(-45);
 242
 243                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 244                         }
 245
 246                         // Set material
 247                         video::SMaterial material;
 248                         material.setFlag(video::EMF_LIGHTING, false);
 249                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 250                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 251                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 252                         material.MaterialType
 253                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 254
 255                         if(dir == v3s16(0,-1,0))
 256                                 material.setTexture(0,
 257                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 258                         else if(dir == v3s16(0,1,0))
 259                                 material.setTexture(0,
 260                                                 g_texturesource->getTextureRaw("torch_on_ceiling.png"));
 261                         // For backwards compatibility
 262                         else if(dir == v3s16(0,0,0))
 263                                 material.setTexture(0,
 264                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 265                         else
 266                                 material.setTexture(0,
 267                                                 g_texturesource->getTextureRaw("torch.png"));
 268
 269                         u16 indices[] = {0,1,2,2,3,0};
 270                         // Add to mesh collector
 271                         collector.append(material, vertices, 4, indices, 6);
 272                 }
 273                 /*
 274                         Signs on walls
 275                 */
 276                 else if(n.getContent() == CONTENT_SIGN_WALL)
 277                 {
 278                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 279                         video::SColor c = MapBlock_LightColor(255, l);
 280
 281                         float d = (float)BS/16;
 282                         // Wall at X+ of node
 283                         video::S3DVertex vertices[4] =
 284                         {
 285                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
 286                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
 287                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
 288                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
 289                         };
 290
 291                         v3s16 dir = unpackDir(n.param2);
 292
 293                         for(s32 i=0; i<4; i++)
 294                         {
 295                                 if(dir == v3s16(1,0,0))
 296                                         vertices[i].Pos.rotateXZBy(0);
 297                                 if(dir == v3s16(-1,0,0))
 298                                         vertices[i].Pos.rotateXZBy(180);
 299                                 if(dir == v3s16(0,0,1))
 300                                         vertices[i].Pos.rotateXZBy(90);
 301                                 if(dir == v3s16(0,0,-1))
 302                                         vertices[i].Pos.rotateXZBy(-90);
 303                                 if(dir == v3s16(0,-1,0))
 304                                         vertices[i].Pos.rotateXYBy(-90);
 305                                 if(dir == v3s16(0,1,0))
 306                                         vertices[i].Pos.rotateXYBy(90);
 307
 308                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 309                         }
 310
 311                         // Set material
 312                         video::SMaterial material;
 313                         material.setFlag(video::EMF_LIGHTING, false);
 314                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 315                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 316                         material.setFlag(video::EMF_FOG_ENABLE, true);
 317                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 318                         material.MaterialType
 319                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 320
 321                         material.setTexture(0,
 322                                         g_texturesource->getTextureRaw("sign_wall.png"));
 323
 324                         u16 indices[] = {0,1,2,2,3,0};
 325                         // Add to mesh collector
 326                         collector.append(material, vertices, 4, indices, 6);
 327                 }
 328                 /*
 329                         Add flowing liquid to mesh
 330                 */
 331                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 332                 {
 333                         assert(content_features(n).special_material);
 334                         video::SMaterial &liquid_material =
 335                                         *content_features(n).special_material;
 336                         assert(content_features(n).special_atlas);
 337                         AtlasPointer &pa_liquid1 =
 338                                         *content_features(n).special_atlas;
 339
 340                         bool top_is_same_liquid = false;
 341                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 342                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 343                         content_t c_source = content_features(n).liquid_alternative_source;
 344                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 345                                 top_is_same_liquid = true;
 346
 347                         u8 l = 0;
 348                         // Use the light of the node on top if possible
 349                         if(content_features(ntop).param_type == CPT_LIGHT)
 350                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 351                         // Otherwise use the light of this node (the liquid)
 352                         else
 353                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 354                         video::SColor c = MapBlock_LightColor(
 355                                         content_features(n).vertex_alpha, l);
 356
 357                         // Neighbor liquid levels (key = relative position)
 358                         // Includes current node
 359                         core::map<v3s16, f32> neighbor_levels;
 360                         core::map<v3s16, content_t> neighbor_contents;
 361                         core::map<v3s16, u8> neighbor_flags;
 362                         const u8 neighborflag_top_is_same_liquid = 0x01;
 363                         v3s16 neighbor_dirs[9] = {
 364                                 v3s16(0,0,0),
 365                                 v3s16(0,0,1),
 366                                 v3s16(0,0,-1),
 367                                 v3s16(1,0,0),
 368                                 v3s16(-1,0,0),
 369                                 v3s16(1,0,1),
 370                                 v3s16(-1,0,-1),
 371                                 v3s16(1,0,-1),
 372                                 v3s16(-1,0,1),
 373                         };
 374                         for(u32 i=0; i<9; i++)
 375                         {
 376                                 content_t content = CONTENT_AIR;
 377                                 float level = -0.5 * BS;
 378                                 u8 flags = 0;
 379                                 // Check neighbor
 380                                 v3s16 p2 = p + neighbor_dirs[i];
 381                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 382                                 if(n2.getContent() != CONTENT_IGNORE)
 383                                 {
 384                                         content = n2.getContent();
 385
 386                                         if(n2.getContent() == c_source)
 387                                                 level = (-0.5+node_liquid_level) * BS;
 388                                         else if(n2.getContent() == c_flowing)
 389                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 390                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 391
 392                                         // Check node above neighbor.
 393                                         // NOTE: This doesn't get executed if neighbor
 394                                         //       doesn't exist
 395                                         p2.Y += 1;
 396                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 397                                         if(n2.getContent() == c_source ||
 398                                                         n2.getContent() == c_flowing)
 399                                                 flags |= neighborflag_top_is_same_liquid;
 400                                 }
 401
 402                                 neighbor_levels.insert(neighbor_dirs[i], level);
 403                                 neighbor_contents.insert(neighbor_dirs[i], content);
 404                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 405                         }
 406
 407                         // Corner heights (average between four liquids)
 408                         f32 corner_levels[4];
 409
 410                         v3s16 halfdirs[4] = {
 411                                 v3s16(0,0,0),
 412                                 v3s16(1,0,0),
 413                                 v3s16(1,0,1),
 414                                 v3s16(0,0,1),
 415                         };
 416                         for(u32 i=0; i<4; i++)
 417                         {
 418                                 v3s16 cornerdir = halfdirs[i];
 419                                 float cornerlevel = 0;
 420                                 u32 valid_count = 0;
 421                                 u32 air_count = 0;
 422                                 for(u32 j=0; j<4; j++)
 423                                 {
 424                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 425                                         content_t content = neighbor_contents[neighbordir];
 426                                         // If top is liquid, draw starting from top of node
 427                                         if(neighbor_flags[neighbordir] &
 428                                                         neighborflag_top_is_same_liquid)
 429                                         {
 430                                                 cornerlevel = 0.5*BS;
 431                                                 valid_count = 1;
 432                                                 break;
 433                                         }
 434                                         // Source is always the same height
 435                                         else if(content == c_source)
 436                                         {
 437                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 438                                                 valid_count = 1;
 439                                                 break;
 440                                         }
 441                                         // Flowing liquid has level information
 442                                         else if(content == c_flowing)
 443                                         {
 444                                                 cornerlevel += neighbor_levels[neighbordir];
 445                                                 valid_count++;
 446                                         }
 447                                         else if(content == CONTENT_AIR)
 448                                         {
 449                                                 air_count++;
 450                                         }
 451                                 }
 452                                 if(air_count >= 2)
 453                                         cornerlevel = -0.5*BS;
 454                                 else if(valid_count > 0)
 455                                         cornerlevel /= valid_count;
 456                                 corner_levels[i] = cornerlevel;
 457                         }
 458
 459                         /*
 460                                 Generate sides
 461                         */
 462
 463                         v3s16 side_dirs[4] = {
 464                                 v3s16(1,0,0),
 465                                 v3s16(-1,0,0),
 466                                 v3s16(0,0,1),
 467                                 v3s16(0,0,-1),
 468                         };
 469                         s16 side_corners[4][2] = {
 470                                 {1, 2},
 471                                 {3, 0},
 472                                 {2, 3},
 473                                 {0, 1},
 474                         };
 475                         for(u32 i=0; i<4; i++)
 476                         {
 477                                 v3s16 dir = side_dirs[i];
 478
 479                                 /*
 480                                         If our topside is liquid and neighbor's topside
 481                                         is liquid, don't draw side face
 482                                 */
 483                                 if(top_is_same_liquid &&
 484                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 485                                         continue;
 486
 487                                 content_t neighbor_content = neighbor_contents[dir];
 488
 489                                 // Don't draw face if neighbor is not air or liquid
 490                                 if(neighbor_content != CONTENT_AIR
 491                                                 && content_liquid(neighbor_content) == false)
 492                                         continue;
 493
 494                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 495                                                 || neighbor_content == c_flowing);
 496
 497                                 // Don't draw any faces if neighbor same is liquid and top is
 498                                 // same liquid
 499                                 if(neighbor_is_same_liquid == true
 500                                                 && top_is_same_liquid == false)
 501                                         continue;
 502
 503                                 video::S3DVertex vertices[4] =
 504                                 {
 505                                         /*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 506                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 507                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 508                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 509                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 510                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 511                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 512                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 513                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 514                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 515                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 516                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 517                                 };
 518
 519                                 /*
 520                                         If our topside is liquid, set upper border of face
 521                                         at upper border of node
 522                                 */
 523                                 if(top_is_same_liquid)
 524                                 {
 525                                         vertices[2].Pos.Y = 0.5*BS;
 526                                         vertices[3].Pos.Y = 0.5*BS;
 527                                 }
 528                                 /*
 529                                         Otherwise upper position of face is corner levels
 530                                 */
 531                                 else
 532                                 {
 533                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 534                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 535                                 }
 536
 537                                 /*
 538                                         If neighbor is liquid, lower border of face is corner
 539                                         liquid levels
 540                                 */
 541                                 if(neighbor_is_same_liquid)
 542                                 {
 543                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 544                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 545                                 }
 546                                 /*
 547                                         If neighbor is not liquid, lower border of face is
 548                                         lower border of node
 549                                 */
 550                                 else
 551                                 {
 552                                         vertices[0].Pos.Y = -0.5*BS;
 553                                         vertices[1].Pos.Y = -0.5*BS;
 554                                 }
 555
 556                                 for(s32 j=0; j<4; j++)
 557                                 {
 558                                         if(dir == v3s16(0,0,1))
 559                                                 vertices[j].Pos.rotateXZBy(0);
 560                                         if(dir == v3s16(0,0,-1))
 561                                                 vertices[j].Pos.rotateXZBy(180);
 562                                         if(dir == v3s16(-1,0,0))
 563                                                 vertices[j].Pos.rotateXZBy(90);
 564                                         if(dir == v3s16(1,0,-0))
 565                                                 vertices[j].Pos.rotateXZBy(-90);
 566
 567                                         // Do this to not cause glitches when two liquids are
 568                                         // side-by-side
 569                                         if(neighbor_is_same_liquid == false){
 570                                                 vertices[j].Pos.X *= 0.98;
 571                                                 vertices[j].Pos.Z *= 0.98;
 572                                         }
 573
 574                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 575                                 }
 576
 577                                 u16 indices[] = {0,1,2,2,3,0};
 578                                 // Add to mesh collector
 579                                 collector.append(liquid_material, vertices, 4, indices, 6);
 580                         }
 581
 582                         /*
 583                                 Generate top side, if appropriate
 584                         */
 585
 586                         if(top_is_same_liquid == false)
 587                         {
 588                                 video::S3DVertex vertices[4] =
 589                                 {
 590                                         /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 591                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 592                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 593                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 594                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 595                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 596                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 597                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 598                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 599                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 600                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 601                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 602                                 };
 603
 604                                 // This fixes a strange bug
 605                                 s32 corner_resolve[4] = {3,2,1,0};
 606
 607                                 for(s32 i=0; i<4; i++)
 608                                 {
 609                                         //vertices[i].Pos.Y += liquid_level;
 610                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 611                                         s32 j = corner_resolve[i];
 612                                         vertices[i].Pos.Y += corner_levels[j];
 613                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 614                                 }
 615
 616                                 u16 indices[] = {0,1,2,2,3,0};
 617                                 // Add to mesh collector
 618                                 collector.append(liquid_material, vertices, 4, indices, 6);
 619                         }
 620                 }
 621                 /*
 622                         Add water sources to mesh if using new style
 623                 */
 624                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 625                                 && new_style_water)
 626                 {
 627                         assert(content_features(n).special_material);
 628                         video::SMaterial &liquid_material =
 629                                         *content_features(n).special_material;
 630                         assert(content_features(n).special_atlas);
 631                         AtlasPointer &pa_liquid1 =
 632                                         *content_features(n).special_atlas;
 633
 634                         bool top_is_air = false;
 635                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 636                         if(n.getContent() == CONTENT_AIR)
 637                                 top_is_air = true;
 638
 639                         if(top_is_air == false)
 640                                 continue;
 641
 642                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 643                         video::SColor c = MapBlock_LightColor(
 644                                         content_features(n).vertex_alpha, l);
 645
 646                         video::S3DVertex vertices[4] =
 647                         {
 648                                 /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 649                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 650                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 651                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 652                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 653                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 654                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 655                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 656                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 657                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 658                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 659                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 660                         };
 661
 662                         for(s32 i=0; i<4; i++)
 663                         {
 664                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 665                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 666                         }
 667
 668                         u16 indices[] = {0,1,2,2,3,0};
 669                         // Add to mesh collector
 670                         collector.append(liquid_material, vertices, 4, indices, 6);
 671                 }
 672                 /*
 673                         Add leaves if using new style
 674                 */
 675                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 676                 {
 677                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 678                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 679                         video::SColor c = MapBlock_LightColor(255, l);
 680
 681                         for(u32 j=0; j<6; j++)
 682                         {
 683                                 video::S3DVertex vertices[4] =
 684                                 {
 685                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 686                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 687                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 688                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 689                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 690                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 691                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 692                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 693                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 694                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 695                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 696                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 697                                 };
 698
 699                                 if(j == 0)
 700                                 {
 701                                         for(u16 i=0; i<4; i++)
 702                                                 vertices[i].Pos.rotateXZBy(0);
 703                                 }
 704                                 else if(j == 1)
 705                                 {
 706                                         for(u16 i=0; i<4; i++)
 707                                                 vertices[i].Pos.rotateXZBy(180);
 708                                 }
 709                                 else if(j == 2)
 710                                 {
 711                                         for(u16 i=0; i<4; i++)
 712                                                 vertices[i].Pos.rotateXZBy(-90);
 713                                 }
 714                                 else if(j == 3)
 715                                 {
 716                                         for(u16 i=0; i<4; i++)
 717                                                 vertices[i].Pos.rotateXZBy(90);
 718                                 }
 719                                 else if(j == 4)
 720                                 {
 721                                         for(u16 i=0; i<4; i++)
 722                                                 vertices[i].Pos.rotateYZBy(-90);
 723                                 }
 724                                 else if(j == 5)
 725                                 {
 726                                         for(u16 i=0; i<4; i++)
 727                                                 vertices[i].Pos.rotateYZBy(90);
 728                                 }
 729
 730                                 for(u16 i=0; i<4; i++)
 731                                 {
 732                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 733                                 }
 734
 735                                 u16 indices[] = {0,1,2,2,3,0};
 736                                 // Add to mesh collector
 737                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 738                         }
 739                 }
 740                 /*
 741                         Add glass
 742                 */
 743                 else if(n.getContent() == CONTENT_GLASS)
 744                 {
 745                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 746                         video::SColor c = MapBlock_LightColor(255, l);
 747
 748                         for(u32 j=0; j<6; j++)
 749                         {
 750                                 video::S3DVertex vertices[4] =
 751                                 {
 752                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 753                                                 pa_glass.x0(), pa_glass.y1()),
 754                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 755                                                 pa_glass.x1(), pa_glass.y1()),
 756                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 757                                                 pa_glass.x1(), pa_glass.y0()),
 758                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 759                                                 pa_glass.x0(), pa_glass.y0()),
 760                                 };
 761
 762                                 if(j == 0)
 763                                 {
 764                                         for(u16 i=0; i<4; i++)
 765                                                 vertices[i].Pos.rotateXZBy(0);
 766                                 }
 767                                 else if(j == 1)
 768                                 {
 769                                         for(u16 i=0; i<4; i++)
 770                                                 vertices[i].Pos.rotateXZBy(180);
 771                                 }
 772                                 else if(j == 2)
 773                                 {
 774                                         for(u16 i=0; i<4; i++)
 775                                                 vertices[i].Pos.rotateXZBy(-90);
 776                                 }
 777                                 else if(j == 3)
 778                                 {
 779                                         for(u16 i=0; i<4; i++)
 780                                                 vertices[i].Pos.rotateXZBy(90);
 781                                 }
 782                                 else if(j == 4)
 783                                 {
 784                                         for(u16 i=0; i<4; i++)
 785                                                 vertices[i].Pos.rotateYZBy(-90);
 786                                 }
 787                                 else if(j == 5)
 788                                 {
 789                                         for(u16 i=0; i<4; i++)
 790                                                 vertices[i].Pos.rotateYZBy(90);
 791                                 }
 792
 793                                 for(u16 i=0; i<4; i++)
 794                                 {
 795                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 796                                 }
 797
 798                                 u16 indices[] = {0,1,2,2,3,0};
 799                                 // Add to mesh collector
 800                                 collector.append(material_glass, vertices, 4, indices, 6);
 801                         }
 802                 }
 803                 /*
 804                         Add fence
 805                 */
 806                 else if(n.getContent() == CONTENT_FENCE)
 807                 {
 808                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 809                         video::SColor c = MapBlock_LightColor(255, l);
 810
 811                         const f32 post_rad=(f32)BS/10;
 812                         const f32 bar_rad=(f32)BS/20;
 813                         const f32 bar_len=(f32)(BS/2)-post_rad;
 814
 815                         // The post - always present
 816                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 817                         f32 postuv[24]={
 818                                         0.4,0.4,0.6,0.6,
 819                                         0.35,0,0.65,1,
 820                                         0.35,0,0.65,1,
 821                                         0.35,0,0.65,1,
 822                                         0.35,0,0.65,1,
 823                                         0.4,0.4,0.6,0.6};
 824                         makeCuboid(material_wood, &collector,
 825                                 &pa_wood, c, pos,
 826                                 post_rad,BS/2,post_rad, postuv);
 827
 828                         // Now a section of fence, +X, if there's a post there
 829                         v3s16 p2 = p;
 830                         p2.X++;
 831                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 832                         if(n2.getContent() == CONTENT_FENCE)
 833                         {
 834                                 pos = intToFloat(p+blockpos_nodes, BS);
 835                                 pos.X += BS/2;
 836                                 pos.Y += BS/4;
 837                                 f32 xrailuv[24]={
 838                                         0,0.4,1,0.6,
 839                                         0,0.4,1,0.6,
 840                                         0,0.4,1,0.6,
 841                                         0,0.4,1,0.6,
 842                                         0,0.4,1,0.6,
 843                                         0,0.4,1,0.6};
 844                                 makeCuboid(material_wood, &collector,
 845                                         &pa_wood, c, pos,
 846                                         bar_len,bar_rad,bar_rad, xrailuv);
 847
 848                                 pos.Y -= BS/2;
 849                                 makeCuboid(material_wood, &collector,
 850                                         &pa_wood, c, pos,
 851                                         bar_len,bar_rad,bar_rad, xrailuv);
 852                         }
 853
 854                         // Now a section of fence, +Z, if there's a post there
 855                         p2 = p;
 856                         p2.Z++;
 857                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 858                         if(n2.getContent() == CONTENT_FENCE)
 859                         {
 860                                 pos = intToFloat(p+blockpos_nodes, BS);
 861                                 pos.Z += BS/2;
 862                                 pos.Y += BS/4;
 863                                 f32 zrailuv[24]={
 864                                         0,0.4,1,0.6,
 865                                         0,0.4,1,0.6,
 866                                         0,0.4,1,0.6,
 867                                         0,0.4,1,0.6,
 868                                         0,0.4,1,0.6,
 869                                         0,0.4,1,0.6};
 870                                 makeCuboid(material_wood, &collector,
 871                                         &pa_wood, c, pos,
 872                                         bar_rad,bar_rad,bar_len, zrailuv);
 873                                 pos.Y -= BS/2;
 874                                 makeCuboid(material_wood, &collector,
 875                                         &pa_wood, c, pos,
 876                                         bar_rad,bar_rad,bar_len, zrailuv);
 877
 878                         }
 879
 880                 }
 881 #if 1
 882                 /*
 883                         Add stones with minerals if stone is invisible
 884                 */
 885                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 886                 {
 887                         for(u32 j=0; j<6; j++)
 888                         {
 889                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 890                                 v3s16 dir = g_6dirs[j];
 891                                 /*u8 l = 0;
 892                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 893                                 if(content_features(n2).param_type == CPT_LIGHT)
 894                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 895                                 else
 896                                         l = 255;*/
 897                                 u8 l = 255;
 898                                 video::SColor c = MapBlock_LightColor(255, l);
 899
 900                                 // Get the right texture
 901                                 TileSpec ts = n.getTile(dir);
 902                                 AtlasPointer ap = ts.texture;
 903                                 material_general.setTexture(0, ap.atlas);
 904
 905                                 video::S3DVertex vertices[4] =
 906                                 {
 907                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 908                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 909                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 910                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 911                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 912                                                 ap.x0(), ap.y1()),
 913                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 914                                                 ap.x1(), ap.y1()),
 915                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 916                                                 ap.x1(), ap.y0()),
 917                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 918                                                 ap.x0(), ap.y0()),
 919                                 };
 920
 921                                 if(j == 0)
 922                                 {
 923                                         for(u16 i=0; i<4; i++)
 924                                                 vertices[i].Pos.rotateXZBy(0);
 925                                 }
 926                                 else if(j == 1)
 927                                 {
 928                                         for(u16 i=0; i<4; i++)
 929                                                 vertices[i].Pos.rotateXZBy(180);
 930                                 }
 931                                 else if(j == 2)
 932                                 {
 933                                         for(u16 i=0; i<4; i++)
 934                                                 vertices[i].Pos.rotateXZBy(-90);
 935                                 }
 936                                 else if(j == 3)
 937                                 {
 938                                         for(u16 i=0; i<4; i++)
 939                                                 vertices[i].Pos.rotateXZBy(90);
 940                                 }
 941                                 else if(j == 4)
 942
 943                                 for(u16 i=0; i<4; i++)
 944                                 {
 945                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 946                                 }
 947
 948                                 u16 indices[] = {0,1,2,2,3,0};
 949                                 // Add to mesh collector
 950                                 collector.append(material_general, vertices, 4, indices, 6);
 951                         }
 952                 }
 953 #endif
 954                 else if(n.getContent() == CONTENT_PAPYRUS)
 955                 {
 956                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 957                         video::SColor c = MapBlock_LightColor(255, l);
 958
 959                         for(u32 j=0; j<4; j++)
 960                         {
 961                                 video::S3DVertex vertices[4] =
 962                                 {
 963                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 964                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 965                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 966                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 967                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 968                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 969                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 970                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 971                                 };
 972
 973                                 if(j == 0)
 974                                 {
 975                                         for(u16 i=0; i<4; i++)
 976                                                 vertices[i].Pos.rotateXZBy(45);
 977                                 }
 978                                 else if(j == 1)
 979                                 {
 980                                         for(u16 i=0; i<4; i++)
 981                                                 vertices[i].Pos.rotateXZBy(-45);
 982                                 }
 983                                 else if(j == 2)
 984                                 {
 985                                         for(u16 i=0; i<4; i++)
 986                                                 vertices[i].Pos.rotateXZBy(135);
 987                                 }
 988                                 else if(j == 3)
 989                                 {
 990                                         for(u16 i=0; i<4; i++)
 991                                                 vertices[i].Pos.rotateXZBy(-135);
 992                                 }
 993
 994                                 for(u16 i=0; i<4; i++)
 995                                 {
 996                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 997                                 }
 998
 999                                 u16 indices[] = {0,1,2,2,3,0};
1000                                 // Add to mesh collector
1001                                 collector.append(material_papyrus, vertices, 4, indices, 6);
1002                         }
1003                 }
1004                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
1005                 {
1006                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1007                         video::SColor c = MapBlock_LightColor(255, l);
1008
1009                         for(u32 j=0; j<4; j++)
1010                         {
1011                                 video::S3DVertex vertices[4] =
1012                                 {
1013                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1014                                                 pa_papyrus.x0(), pa_papyrus.y1()),
1015                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1016                                                 pa_papyrus.x1(), pa_papyrus.y1()),
1017                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1018                                                 pa_papyrus.x1(), pa_papyrus.y0()),
1019                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1020                                                 pa_papyrus.x0(), pa_papyrus.y0()),
1021                                 };
1022
1023                                 if(j == 0)
1024                                 {
1025                                         for(u16 i=0; i<4; i++)
1026                                                 vertices[i].Pos.rotateXZBy(45);
1027                                 }
1028                                 else if(j == 1)
1029                                 {
1030                                         for(u16 i=0; i<4; i++)
1031                                                 vertices[i].Pos.rotateXZBy(-45);
1032                                 }
1033                                 else if(j == 2)
1034                                 {
1035                                         for(u16 i=0; i<4; i++)
1036                                                 vertices[i].Pos.rotateXZBy(135);
1037                                 }
1038                                 else if(j == 3)
1039                                 {
1040                                         for(u16 i=0; i<4; i++)
1041                                                 vertices[i].Pos.rotateXZBy(-135);
1042                                 }
1043
1044                                 for(u16 i=0; i<4; i++)
1045                                 {
1046                                         vertices[i].Pos *= 1.3;
1047                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1048                                 }
1049
1050                                 u16 indices[] = {0,1,2,2,3,0};
1051                                 // Add to mesh collector
1052                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1053                         }
1054                 }
1055                 else if(n.getContent() == CONTENT_RAIL)
1056                 {
1057                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1058                         video::SColor c = MapBlock_LightColor(255, l);
1059
1060                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1061                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1062
1063                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1064                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1065                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1066                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1067
1068                         if(n_minus_x.getContent() == CONTENT_RAIL)
1069                                 is_rail_x[0] = true;
1070                         if(n_plus_x.getContent() == CONTENT_RAIL)
1071                                 is_rail_x[1] = true;
1072                         if(n_minus_z.getContent() == CONTENT_RAIL)
1073                                 is_rail_z[0] = true;
1074                         if(n_plus_z.getContent() == CONTENT_RAIL)
1075                                 is_rail_z[1] = true;
1076
1077                         float d = (float)BS/16;
1078                         video::S3DVertex vertices[4] =
1079                         {
1080                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1081                                         0, 1),
1082                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1083                                         1, 1),
1084                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1085                                         1, 0),
1086                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1087                                         0, 0),
1088                         };
1089
1090                         video::SMaterial material_rail;
1091                         material_rail.setFlag(video::EMF_LIGHTING, false);
1092                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
1093                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1094                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1095                         material_rail.MaterialType
1096                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1097
1098                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1099
1100                         // Assign textures
1101                         if(adjacencies < 2)
1102                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1103                         else if(adjacencies == 2)
1104                         {
1105                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1106                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1107                                 else
1108                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_curved.png"));
1109                         }
1110                         else if(adjacencies == 3)
1111                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_t_junction.png"));
1112                         else if(adjacencies == 4)
1113                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_crossing.png"));
1114
1115                         // Rotate textures
1116                         int angle = 0;
1117
1118                         if(adjacencies == 1)
1119                         {
1120                                 if(is_rail_x[0] || is_rail_x[1])
1121                                         angle = 90;
1122                         }
1123                         else if(adjacencies == 2)
1124                         {
1125                                 if(is_rail_x[0] && is_rail_x[1])
1126                                         angle = 90;
1127                                 else if(is_rail_x[0] && is_rail_z[0])
1128                                         angle = 270;
1129                                 else if(is_rail_x[0] && is_rail_z[1])
1130                                         angle = 180;
1131                                 else if(is_rail_x[1] && is_rail_z[1])
1132                                         angle = 90;
1133                         }
1134                         else if(adjacencies == 3)
1135                         {
1136                                 if(!is_rail_x[0])
1137                                         angle=0;
1138                                 if(!is_rail_x[1])
1139                                         angle=180;
1140                                 if(!is_rail_z[0])
1141                                         angle=90;
1142                                 if(!is_rail_z[1])
1143                                         angle=270;
1144                         }
1145
1146                         if(angle != 0) {
1147                                 for(u16 i=0; i<4; i++)
1148                                         vertices[i].Pos.rotateXZBy(angle);
1149                         }
1150
1151                         for(s32 i=0; i<4; i++)
1152                         {
1153                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1154                         }
1155
1156                         u16 indices[] = {0,1,2,2,3,0};
1157                         collector.append(material_rail, vertices, 4, indices, 6);
1158                 }
1159                 else if (n.getContent() == CONTENT_LADDER) {
1160                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1161                         video::SColor c(255,l,l,l);
1162
1163                         float d = (float)BS/16;
1164
1165                         // Assume wall is at X+
1166                         video::S3DVertex vertices[4] =
1167                         {
1168                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
1169                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
1170                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
1171                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
1172                         };
1173
1174                         v3s16 dir = unpackDir(n.param2);
1175
1176                         for(s32 i=0; i<4; i++)
1177                         {
1178                                 if(dir == v3s16(1,0,0))
1179                                         vertices[i].Pos.rotateXZBy(0);
1180                                 if(dir == v3s16(-1,0,0))
1181                                         vertices[i].Pos.rotateXZBy(180);
1182                                 if(dir == v3s16(0,0,1))
1183                                         vertices[i].Pos.rotateXZBy(90);
1184                                 if(dir == v3s16(0,0,-1))
1185                                         vertices[i].Pos.rotateXZBy(-90);
1186                                 if(dir == v3s16(0,-1,0))
1187                                         vertices[i].Pos.rotateXYBy(-90);
1188                                 if(dir == v3s16(0,1,0))
1189                                         vertices[i].Pos.rotateXYBy(90);
1190
1191                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1192                         }
1193
1194                         video::SMaterial material_ladder;
1195                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1196                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, false);
1197                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1198                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1199                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1200                         material_ladder.setTexture(0, g_texturesource->getTextureRaw("ladder.png"));
1201
1202                         u16 indices[] = {0,1,2,2,3,0};
1203                         // Add to mesh collector
1204                         collector.append(material_ladder, vertices, 4, indices, 6);
1205                 }
1206         }
1207 }
1208 #endif
1209