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 #include "settings.h"
  26
  27 #ifndef SERVER
  28 // Create a cuboid.
  29 //  material  - the material to use (for all 6 faces)
  30 //  collector - the MeshCollector for the resulting polygons
  31 //  pa        - texture atlas pointer for the material
  32 //  c         - vertex colour - used for all
  33 //  pos       - the position of the centre of the cuboid
  34 //  rz,ry,rz  - the radius of the cuboid in each dimension
  35 //  txc       - texture coordinates - this is a list of texture coordinates
  36 //              for the opposite corners of each face - therefore, there
  37 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  38 //              NULL to use the entire texture for each face. The order of
  39 //              the faces in the list is top-backi-right-front-left-bottom
  40 //              If you specified 0,0,1,1 for each face, that would be the
  41 //              same as passing NULL.
  42 void makeCuboid(video::SMaterial &material, MeshCollector *collector,
  43         AtlasPointer* pa, video::SColor &c,
  44         v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
  45 {
  46         f32 tu0=pa->x0();
  47         f32 tu1=pa->x1();
  48         f32 tv0=pa->y0();
  49         f32 tv1=pa->y1();
  50         f32 txus=tu1-tu0;
  51         f32 txvs=tv1-tv0;
  52
  53         video::S3DVertex v[4] =
  54         {
  55                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
  56                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
  57                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
  58                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
  59         };
  60
  61         for(int i=0;i<6;i++)
  62         {
  63                 switch(i)
  64                 {
  65                         case 0: // top
  66                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  67                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  68                                 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
  69                                 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
  70                                 break;
  71                         case 1: // back
  72                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  73                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  74                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  75                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  76                                 break;
  77                         case 2: //right
  78                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  79                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  80                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  81                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  82                                 break;
  83                         case 3: // front
  84                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  85                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  86                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  87                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  88                                 break;
  89                         case 4: // left
  90                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  91                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  92                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  93                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  94                                 break;
  95                         case 5: // bottom
  96                                 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
  97                                 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
  98                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  99                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
 100                                 break;
 101                 }
 102
 103                 if(txc!=NULL)
 104                 {
 105                         v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
 106                         v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
 107                         v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
 108                         v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
 109                         txc+=4;
 110                 }
 111
 112                 for(u16 i=0; i<4; i++)
 113                         v[i].Pos += pos;
 114                 u16 indices[] = {0,1,2,2,3,0};
 115                 collector->append(material, v, 4, indices, 6);
 116
 117         }
 118
 119 }
 120 #endif
 121
 122 #ifndef SERVER
 123 void mapblock_mesh_generate_special(MeshMakeData *data,
 124                 MeshCollector &collector)
 125 {
 126         // 0ms
 127         //TimeTaker timer("mapblock_mesh_generate_special()");
 128
 129         /*
 130                 Some settings
 131         */
 132         bool new_style_water = g_settings->getBool("new_style_water");
 133         bool new_style_leaves = g_settings->getBool("new_style_leaves");
 134         //bool smooth_lighting = g_settings->getBool("smooth_lighting");
 135         bool invisible_stone = g_settings->getBool("invisible_stone");
 136
 137         float node_liquid_level = 1.0;
 138         if(new_style_water)
 139                 node_liquid_level = 0.85;
 140
 141         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 142
 143         // New-style leaves material
 144         video::SMaterial material_leaves1;
 145         material_leaves1.setFlag(video::EMF_LIGHTING, false);
 146         //material_leaves1.setFlag(video::EMF_BACK_FACE_CULLING, false);
 147         material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
 148         material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
 149         material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 150         AtlasPointer pa_leaves1 = g_texturesource->getTexture(
 151                         g_texturesource->getTextureId("leaves.png"));
 152         material_leaves1.setTexture(0, pa_leaves1.atlas);
 153
 154         // Glass material
 155         video::SMaterial material_glass;
 156         material_glass.setFlag(video::EMF_LIGHTING, false);
 157         material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
 158         material_glass.setFlag(video::EMF_FOG_ENABLE, true);
 159         material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 160         AtlasPointer pa_glass = g_texturesource->getTexture(
 161                         g_texturesource->getTextureId("glass.png"));
 162         material_glass.setTexture(0, pa_glass.atlas);
 163
 164         // Wood material
 165         video::SMaterial material_wood;
 166         material_wood.setFlag(video::EMF_LIGHTING, false);
 167         material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
 168         material_wood.setFlag(video::EMF_FOG_ENABLE, true);
 169         material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 170         AtlasPointer pa_wood = g_texturesource->getTexture(
 171                         g_texturesource->getTextureId("wood.png"));
 172         material_wood.setTexture(0, pa_wood.atlas);
 173
 174         // General ground material for special output
 175         // Texture is modified just before usage
 176         video::SMaterial material_general;
 177         material_general.setFlag(video::EMF_LIGHTING, false);
 178         material_general.setFlag(video::EMF_BILINEAR_FILTER, false);
 179         material_general.setFlag(video::EMF_FOG_ENABLE, true);
 180         material_general.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 181
 182
 183         // Papyrus material
 184         video::SMaterial material_papyrus;
 185         material_papyrus.setFlag(video::EMF_LIGHTING, false);
 186         material_papyrus.setFlag(video::EMF_BILINEAR_FILTER, false);
 187         material_papyrus.setFlag(video::EMF_FOG_ENABLE, true);
 188         material_papyrus.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 189         AtlasPointer pa_papyrus = g_texturesource->getTexture(
 190                         g_texturesource->getTextureId("papyrus.png"));
 191         material_papyrus.setTexture(0, pa_papyrus.atlas);
 192
 193         // Apple material
 194         video::SMaterial material_apple;
 195         material_apple.setFlag(video::EMF_LIGHTING, false);
 196         material_apple.setFlag(video::EMF_BILINEAR_FILTER, false);
 197         material_apple.setFlag(video::EMF_FOG_ENABLE, true);
 198         material_apple.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 199         AtlasPointer pa_apple = g_texturesource->getTexture(
 200                         g_texturesource->getTextureId("apple.png"));
 201         material_apple.setTexture(0, pa_apple.atlas);
 202
 203
 204         // Sapling material
 205         video::SMaterial material_sapling;
 206         material_sapling.setFlag(video::EMF_LIGHTING, false);
 207         material_sapling.setFlag(video::EMF_BILINEAR_FILTER, false);
 208         material_sapling.setFlag(video::EMF_FOG_ENABLE, true);
 209         material_sapling.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 210         AtlasPointer pa_sapling = g_texturesource->getTexture(
 211                         g_texturesource->getTextureId("sapling.png"));
 212         material_sapling.setTexture(0, pa_sapling.atlas);
 213
 214
 215         // junglegrass material
 216         video::SMaterial material_junglegrass;
 217         material_junglegrass.setFlag(video::EMF_LIGHTING, false);
 218         material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
 219         material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
 220         material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 221         AtlasPointer pa_junglegrass = g_texturesource->getTexture(
 222                         g_texturesource->getTextureId("junglegrass.png"));
 223         material_junglegrass.setTexture(0, pa_junglegrass.atlas);
 224
 225         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 226         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 227         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 228         {
 229                 v3s16 p(x,y,z);
 230
 231                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 232
 233                 /*
 234                         Add torches to mesh
 235                 */
 236                 if(n.getContent() == CONTENT_TORCH)
 237                 {
 238                         video::SColor c(255,255,255,255);
 239
 240                         // Wall at X+ of node
 241                         video::S3DVertex vertices[4] =
 242                         {
 243                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
 244                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
 245                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
 246                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
 247                         };
 248
 249                         v3s16 dir = unpackDir(n.param2);
 250
 251                         for(s32 i=0; i<4; i++)
 252                         {
 253                                 if(dir == v3s16(1,0,0))
 254                                         vertices[i].Pos.rotateXZBy(0);
 255                                 if(dir == v3s16(-1,0,0))
 256                                         vertices[i].Pos.rotateXZBy(180);
 257                                 if(dir == v3s16(0,0,1))
 258                                         vertices[i].Pos.rotateXZBy(90);
 259                                 if(dir == v3s16(0,0,-1))
 260                                         vertices[i].Pos.rotateXZBy(-90);
 261                                 if(dir == v3s16(0,-1,0))
 262                                         vertices[i].Pos.rotateXZBy(45);
 263                                 if(dir == v3s16(0,1,0))
 264                                         vertices[i].Pos.rotateXZBy(-45);
 265
 266                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 267                         }
 268
 269                         // Set material
 270                         video::SMaterial material;
 271                         material.setFlag(video::EMF_LIGHTING, false);
 272                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 273                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 274                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 275                         material.MaterialType
 276                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 277
 278                         if(dir == v3s16(0,-1,0))
 279                                 material.setTexture(0,
 280                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 281                         else if(dir == v3s16(0,1,0))
 282                                 material.setTexture(0,
 283                                                 g_texturesource->getTextureRaw("torch_on_ceiling.png"));
 284                         // For backwards compatibility
 285                         else if(dir == v3s16(0,0,0))
 286                                 material.setTexture(0,
 287                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 288                         else
 289                                 material.setTexture(0,
 290                                                 g_texturesource->getTextureRaw("torch.png"));
 291
 292                         u16 indices[] = {0,1,2,2,3,0};
 293                         // Add to mesh collector
 294                         collector.append(material, vertices, 4, indices, 6);
 295                 }
 296                 /*
 297                         Signs on walls
 298                 */
 299                 else if(n.getContent() == CONTENT_SIGN_WALL)
 300                 {
 301                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 302                         video::SColor c = MapBlock_LightColor(255, l);
 303
 304                         float d = (float)BS/16;
 305                         // Wall at X+ of node
 306                         video::S3DVertex vertices[4] =
 307                         {
 308                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
 309                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
 310                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
 311                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
 312                         };
 313
 314                         v3s16 dir = unpackDir(n.param2);
 315
 316                         for(s32 i=0; i<4; i++)
 317                         {
 318                                 if(dir == v3s16(1,0,0))
 319                                         vertices[i].Pos.rotateXZBy(0);
 320                                 if(dir == v3s16(-1,0,0))
 321                                         vertices[i].Pos.rotateXZBy(180);
 322                                 if(dir == v3s16(0,0,1))
 323                                         vertices[i].Pos.rotateXZBy(90);
 324                                 if(dir == v3s16(0,0,-1))
 325                                         vertices[i].Pos.rotateXZBy(-90);
 326                                 if(dir == v3s16(0,-1,0))
 327                                         vertices[i].Pos.rotateXYBy(-90);
 328                                 if(dir == v3s16(0,1,0))
 329                                         vertices[i].Pos.rotateXYBy(90);
 330
 331                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 332                         }
 333
 334                         // Set material
 335                         video::SMaterial material;
 336                         material.setFlag(video::EMF_LIGHTING, false);
 337                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 338                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 339                         material.setFlag(video::EMF_FOG_ENABLE, true);
 340                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 341                         material.MaterialType
 342                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 343
 344                         material.setTexture(0,
 345                                         g_texturesource->getTextureRaw("sign_wall.png"));
 346
 347                         u16 indices[] = {0,1,2,2,3,0};
 348                         // Add to mesh collector
 349                         collector.append(material, vertices, 4, indices, 6);
 350                 }
 351                 /*
 352                         Add flowing liquid to mesh
 353                 */
 354                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 355                 {
 356                         assert(content_features(n).special_material);
 357                         video::SMaterial &liquid_material =
 358                                         *content_features(n).special_material;
 359                         assert(content_features(n).special_atlas);
 360                         AtlasPointer &pa_liquid1 =
 361                                         *content_features(n).special_atlas;
 362
 363                         bool top_is_same_liquid = false;
 364                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 365                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 366                         content_t c_source = content_features(n).liquid_alternative_source;
 367                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 368                                 top_is_same_liquid = true;
 369
 370                         u8 l = 0;
 371                         // Use the light of the node on top if possible
 372                         if(content_features(ntop).param_type == CPT_LIGHT)
 373                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 374                         // Otherwise use the light of this node (the liquid)
 375                         else
 376                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 377                         video::SColor c = MapBlock_LightColor(
 378                                         content_features(n).vertex_alpha, l);
 379
 380                         // Neighbor liquid levels (key = relative position)
 381                         // Includes current node
 382                         core::map<v3s16, f32> neighbor_levels;
 383                         core::map<v3s16, content_t> neighbor_contents;
 384                         core::map<v3s16, u8> neighbor_flags;
 385                         const u8 neighborflag_top_is_same_liquid = 0x01;
 386                         v3s16 neighbor_dirs[9] = {
 387                                 v3s16(0,0,0),
 388                                 v3s16(0,0,1),
 389                                 v3s16(0,0,-1),
 390                                 v3s16(1,0,0),
 391                                 v3s16(-1,0,0),
 392                                 v3s16(1,0,1),
 393                                 v3s16(-1,0,-1),
 394                                 v3s16(1,0,-1),
 395                                 v3s16(-1,0,1),
 396                         };
 397                         for(u32 i=0; i<9; i++)
 398                         {
 399                                 content_t content = CONTENT_AIR;
 400                                 float level = -0.5 * BS;
 401                                 u8 flags = 0;
 402                                 // Check neighbor
 403                                 v3s16 p2 = p + neighbor_dirs[i];
 404                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 405                                 if(n2.getContent() != CONTENT_IGNORE)
 406                                 {
 407                                         content = n2.getContent();
 408
 409                                         if(n2.getContent() == c_source)
 410                                                 level = (-0.5+node_liquid_level) * BS;
 411                                         else if(n2.getContent() == c_flowing)
 412                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 413                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 414
 415                                         // Check node above neighbor.
 416                                         // NOTE: This doesn't get executed if neighbor
 417                                         //       doesn't exist
 418                                         p2.Y += 1;
 419                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 420                                         if(n2.getContent() == c_source ||
 421                                                         n2.getContent() == c_flowing)
 422                                                 flags |= neighborflag_top_is_same_liquid;
 423                                 }
 424
 425                                 neighbor_levels.insert(neighbor_dirs[i], level);
 426                                 neighbor_contents.insert(neighbor_dirs[i], content);
 427                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 428                         }
 429
 430                         // Corner heights (average between four liquids)
 431                         f32 corner_levels[4];
 432
 433                         v3s16 halfdirs[4] = {
 434                                 v3s16(0,0,0),
 435                                 v3s16(1,0,0),
 436                                 v3s16(1,0,1),
 437                                 v3s16(0,0,1),
 438                         };
 439                         for(u32 i=0; i<4; i++)
 440                         {
 441                                 v3s16 cornerdir = halfdirs[i];
 442                                 float cornerlevel = 0;
 443                                 u32 valid_count = 0;
 444                                 u32 air_count = 0;
 445                                 for(u32 j=0; j<4; j++)
 446                                 {
 447                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 448                                         content_t content = neighbor_contents[neighbordir];
 449                                         // If top is liquid, draw starting from top of node
 450                                         if(neighbor_flags[neighbordir] &
 451                                                         neighborflag_top_is_same_liquid)
 452                                         {
 453                                                 cornerlevel = 0.5*BS;
 454                                                 valid_count = 1;
 455                                                 break;
 456                                         }
 457                                         // Source is always the same height
 458                                         else if(content == c_source)
 459                                         {
 460                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 461                                                 valid_count = 1;
 462                                                 break;
 463                                         }
 464                                         // Flowing liquid has level information
 465                                         else if(content == c_flowing)
 466                                         {
 467                                                 cornerlevel += neighbor_levels[neighbordir];
 468                                                 valid_count++;
 469                                         }
 470                                         else if(content == CONTENT_AIR)
 471                                         {
 472                                                 air_count++;
 473                                         }
 474                                 }
 475                                 if(air_count >= 2)
 476                                         cornerlevel = -0.5*BS;
 477                                 else if(valid_count > 0)
 478                                         cornerlevel /= valid_count;
 479                                 corner_levels[i] = cornerlevel;
 480                         }
 481
 482                         /*
 483                                 Generate sides
 484                         */
 485
 486                         v3s16 side_dirs[4] = {
 487                                 v3s16(1,0,0),
 488                                 v3s16(-1,0,0),
 489                                 v3s16(0,0,1),
 490                                 v3s16(0,0,-1),
 491                         };
 492                         s16 side_corners[4][2] = {
 493                                 {1, 2},
 494                                 {3, 0},
 495                                 {2, 3},
 496                                 {0, 1},
 497                         };
 498                         for(u32 i=0; i<4; i++)
 499                         {
 500                                 v3s16 dir = side_dirs[i];
 501
 502                                 /*
 503                                         If our topside is liquid and neighbor's topside
 504                                         is liquid, don't draw side face
 505                                 */
 506                                 if(top_is_same_liquid &&
 507                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 508                                         continue;
 509
 510                                 content_t neighbor_content = neighbor_contents[dir];
 511
 512                                 // Don't draw face if neighbor is not air or liquid
 513                                 if(neighbor_content != CONTENT_AIR
 514                                                 && content_liquid(neighbor_content) == false)
 515                                         continue;
 516
 517                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 518                                                 || neighbor_content == c_flowing);
 519
 520                                 // Don't draw any faces if neighbor same is liquid and top is
 521                                 // same liquid
 522                                 if(neighbor_is_same_liquid == true
 523                                                 && top_is_same_liquid == false)
 524                                         continue;
 525
 526                                 video::S3DVertex vertices[4] =
 527                                 {
 528                                         /*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 529                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 530                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 531                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 532                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 533                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 534                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 535                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 536                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 537                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 538                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 539                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 540                                 };
 541
 542                                 /*
 543                                         If our topside is liquid, set upper border of face
 544                                         at upper border of node
 545                                 */
 546                                 if(top_is_same_liquid)
 547                                 {
 548                                         vertices[2].Pos.Y = 0.5*BS;
 549                                         vertices[3].Pos.Y = 0.5*BS;
 550                                 }
 551                                 /*
 552                                         Otherwise upper position of face is corner levels
 553                                 */
 554                                 else
 555                                 {
 556                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 557                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 558                                 }
 559
 560                                 /*
 561                                         If neighbor is liquid, lower border of face is corner
 562                                         liquid levels
 563                                 */
 564                                 if(neighbor_is_same_liquid)
 565                                 {
 566                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 567                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 568                                 }
 569                                 /*
 570                                         If neighbor is not liquid, lower border of face is
 571                                         lower border of node
 572                                 */
 573                                 else
 574                                 {
 575                                         vertices[0].Pos.Y = -0.5*BS;
 576                                         vertices[1].Pos.Y = -0.5*BS;
 577                                 }
 578
 579                                 for(s32 j=0; j<4; j++)
 580                                 {
 581                                         if(dir == v3s16(0,0,1))
 582                                                 vertices[j].Pos.rotateXZBy(0);
 583                                         if(dir == v3s16(0,0,-1))
 584                                                 vertices[j].Pos.rotateXZBy(180);
 585                                         if(dir == v3s16(-1,0,0))
 586                                                 vertices[j].Pos.rotateXZBy(90);
 587                                         if(dir == v3s16(1,0,-0))
 588                                                 vertices[j].Pos.rotateXZBy(-90);
 589
 590                                         // Do this to not cause glitches when two liquids are
 591                                         // side-by-side
 592                                         if(neighbor_is_same_liquid == false){
 593                                                 vertices[j].Pos.X *= 0.98;
 594                                                 vertices[j].Pos.Z *= 0.98;
 595                                         }
 596
 597                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 598                                 }
 599
 600                                 u16 indices[] = {0,1,2,2,3,0};
 601                                 // Add to mesh collector
 602                                 collector.append(liquid_material, vertices, 4, indices, 6);
 603                         }
 604
 605                         /*
 606                                 Generate top side, if appropriate
 607                         */
 608
 609                         if(top_is_same_liquid == false)
 610                         {
 611                                 video::S3DVertex vertices[4] =
 612                                 {
 613                                         /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 614                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 615                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 616                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 617                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 618                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 619                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 620                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 621                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 622                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 623                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 624                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 625                                 };
 626
 627                                 // This fixes a strange bug
 628                                 s32 corner_resolve[4] = {3,2,1,0};
 629
 630                                 for(s32 i=0; i<4; i++)
 631                                 {
 632                                         //vertices[i].Pos.Y += liquid_level;
 633                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 634                                         s32 j = corner_resolve[i];
 635                                         vertices[i].Pos.Y += corner_levels[j];
 636                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 637                                 }
 638
 639                                 u16 indices[] = {0,1,2,2,3,0};
 640                                 // Add to mesh collector
 641                                 collector.append(liquid_material, vertices, 4, indices, 6);
 642                         }
 643                 }
 644                 /*
 645                         Add water sources to mesh if using new style
 646                 */
 647                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 648                                 && new_style_water)
 649                 {
 650                         assert(content_features(n).special_material);
 651                         video::SMaterial &liquid_material =
 652                                         *content_features(n).special_material;
 653                         assert(content_features(n).special_atlas);
 654                         AtlasPointer &pa_liquid1 =
 655                                         *content_features(n).special_atlas;
 656
 657                         bool top_is_air = false;
 658                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 659                         if(n.getContent() == CONTENT_AIR)
 660                                 top_is_air = true;
 661
 662                         if(top_is_air == false)
 663                                 continue;
 664
 665                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 666                         video::SColor c = MapBlock_LightColor(
 667                                         content_features(n).vertex_alpha, l);
 668
 669                         video::S3DVertex vertices[4] =
 670                         {
 671                                 /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 672                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 673                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 674                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 675                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 676                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 677                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 678                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 679                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 680                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 681                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 682                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 683                         };
 684
 685                         for(s32 i=0; i<4; i++)
 686                         {
 687                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 688                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 689                         }
 690
 691                         u16 indices[] = {0,1,2,2,3,0};
 692                         // Add to mesh collector
 693                         collector.append(liquid_material, vertices, 4, indices, 6);
 694                 }
 695                 /*
 696                         Add leaves if using new style
 697                 */
 698                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 699                 {
 700                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 701                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 702                         video::SColor c = MapBlock_LightColor(255, l);
 703
 704                         for(u32 j=0; j<6; j++)
 705                         {
 706                                 video::S3DVertex vertices[4] =
 707                                 {
 708                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 709                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 710                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 711                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 712                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 713                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 714                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 715                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 716                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 717                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 718                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 719                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 720                                 };
 721
 722                                 if(j == 0)
 723                                 {
 724                                         for(u16 i=0; i<4; i++)
 725                                                 vertices[i].Pos.rotateXZBy(0);
 726                                 }
 727                                 else if(j == 1)
 728                                 {
 729                                         for(u16 i=0; i<4; i++)
 730                                                 vertices[i].Pos.rotateXZBy(180);
 731                                 }
 732                                 else if(j == 2)
 733                                 {
 734                                         for(u16 i=0; i<4; i++)
 735                                                 vertices[i].Pos.rotateXZBy(-90);
 736                                 }
 737                                 else if(j == 3)
 738                                 {
 739                                         for(u16 i=0; i<4; i++)
 740                                                 vertices[i].Pos.rotateXZBy(90);
 741                                 }
 742                                 else if(j == 4)
 743                                 {
 744                                         for(u16 i=0; i<4; i++)
 745                                                 vertices[i].Pos.rotateYZBy(-90);
 746                                 }
 747                                 else if(j == 5)
 748                                 {
 749                                         for(u16 i=0; i<4; i++)
 750                                                 vertices[i].Pos.rotateYZBy(90);
 751                                 }
 752
 753                                 for(u16 i=0; i<4; i++)
 754                                 {
 755                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 756                                 }
 757
 758                                 u16 indices[] = {0,1,2,2,3,0};
 759                                 // Add to mesh collector
 760                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 761                         }
 762                 }
 763                 /*
 764                         Add glass
 765                 */
 766                 else if(n.getContent() == CONTENT_GLASS)
 767                 {
 768                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 769                         video::SColor c = MapBlock_LightColor(255, l);
 770
 771                         for(u32 j=0; j<6; j++)
 772                         {
 773                                 video::S3DVertex vertices[4] =
 774                                 {
 775                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 776                                                 pa_glass.x0(), pa_glass.y1()),
 777                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 778                                                 pa_glass.x1(), pa_glass.y1()),
 779                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 780                                                 pa_glass.x1(), pa_glass.y0()),
 781                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 782                                                 pa_glass.x0(), pa_glass.y0()),
 783                                 };
 784
 785                                 if(j == 0)
 786                                 {
 787                                         for(u16 i=0; i<4; i++)
 788                                                 vertices[i].Pos.rotateXZBy(0);
 789                                 }
 790                                 else if(j == 1)
 791                                 {
 792                                         for(u16 i=0; i<4; i++)
 793                                                 vertices[i].Pos.rotateXZBy(180);
 794                                 }
 795                                 else if(j == 2)
 796                                 {
 797                                         for(u16 i=0; i<4; i++)
 798                                                 vertices[i].Pos.rotateXZBy(-90);
 799                                 }
 800                                 else if(j == 3)
 801                                 {
 802                                         for(u16 i=0; i<4; i++)
 803                                                 vertices[i].Pos.rotateXZBy(90);
 804                                 }
 805                                 else if(j == 4)
 806                                 {
 807                                         for(u16 i=0; i<4; i++)
 808                                                 vertices[i].Pos.rotateYZBy(-90);
 809                                 }
 810                                 else if(j == 5)
 811                                 {
 812                                         for(u16 i=0; i<4; i++)
 813                                                 vertices[i].Pos.rotateYZBy(90);
 814                                 }
 815
 816                                 for(u16 i=0; i<4; i++)
 817                                 {
 818                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 819                                 }
 820
 821                                 u16 indices[] = {0,1,2,2,3,0};
 822                                 // Add to mesh collector
 823                                 collector.append(material_glass, vertices, 4, indices, 6);
 824                         }
 825                 }
 826                 /*
 827                         Add fence
 828                 */
 829                 else if(n.getContent() == CONTENT_FENCE)
 830                 {
 831                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 832                         video::SColor c = MapBlock_LightColor(255, l);
 833
 834                         const f32 post_rad=(f32)BS/10;
 835                         const f32 bar_rad=(f32)BS/20;
 836                         const f32 bar_len=(f32)(BS/2)-post_rad;
 837
 838                         // The post - always present
 839                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 840                         f32 postuv[24]={
 841                                         0.4,0.4,0.6,0.6,
 842                                         0.35,0,0.65,1,
 843                                         0.35,0,0.65,1,
 844                                         0.35,0,0.65,1,
 845                                         0.35,0,0.65,1,
 846                                         0.4,0.4,0.6,0.6};
 847                         makeCuboid(material_wood, &collector,
 848                                 &pa_wood, c, pos,
 849                                 post_rad,BS/2,post_rad, postuv);
 850
 851                         // Now a section of fence, +X, if there's a post there
 852                         v3s16 p2 = p;
 853                         p2.X++;
 854                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 855                         if(n2.getContent() == CONTENT_FENCE)
 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                         if(n2.getContent() == CONTENT_FENCE)
 882                         {
 883                                 pos = intToFloat(p+blockpos_nodes, BS);
 884                                 pos.Z += BS/2;
 885                                 pos.Y += BS/4;
 886                                 f32 zrailuv[24]={
 887                                         0,0.4,1,0.6,
 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                                 makeCuboid(material_wood, &collector,
 894                                         &pa_wood, c, pos,
 895                                         bar_rad,bar_rad,bar_len, zrailuv);
 896                                 pos.Y -= BS/2;
 897                                 makeCuboid(material_wood, &collector,
 898                                         &pa_wood, c, pos,
 899                                         bar_rad,bar_rad,bar_len, zrailuv);
 900
 901                         }
 902
 903                 }
 904 #if 1
 905                 /*
 906                         Add stones with minerals if stone is invisible
 907                 */
 908                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 909                 {
 910                         for(u32 j=0; j<6; j++)
 911                         {
 912                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 913                                 v3s16 dir = g_6dirs[j];
 914                                 /*u8 l = 0;
 915                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 916                                 if(content_features(n2).param_type == CPT_LIGHT)
 917                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 918                                 else
 919                                         l = 255;*/
 920                                 u8 l = 255;
 921                                 video::SColor c = MapBlock_LightColor(255, l);
 922
 923                                 // Get the right texture
 924                                 TileSpec ts = n.getTile(dir);
 925                                 AtlasPointer ap = ts.texture;
 926                                 material_general.setTexture(0, ap.atlas);
 927
 928                                 video::S3DVertex vertices[4] =
 929                                 {
 930                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 931                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 932                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 933                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 934                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 935                                                 ap.x0(), ap.y1()),
 936                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 937                                                 ap.x1(), ap.y1()),
 938                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 939                                                 ap.x1(), ap.y0()),
 940                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 941                                                 ap.x0(), ap.y0()),
 942                                 };
 943
 944                                 if(j == 0)
 945                                 {
 946                                         for(u16 i=0; i<4; i++)
 947                                                 vertices[i].Pos.rotateXZBy(0);
 948                                 }
 949                                 else if(j == 1)
 950                                 {
 951                                         for(u16 i=0; i<4; i++)
 952                                                 vertices[i].Pos.rotateXZBy(180);
 953                                 }
 954                                 else if(j == 2)
 955                                 {
 956                                         for(u16 i=0; i<4; i++)
 957                                                 vertices[i].Pos.rotateXZBy(-90);
 958                                 }
 959                                 else if(j == 3)
 960                                 {
 961                                         for(u16 i=0; i<4; i++)
 962                                                 vertices[i].Pos.rotateXZBy(90);
 963                                 }
 964                                 else if(j == 4)
 965
 966                                 for(u16 i=0; i<4; i++)
 967                                 {
 968                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 969                                 }
 970
 971                                 u16 indices[] = {0,1,2,2,3,0};
 972                                 // Add to mesh collector
 973                                 collector.append(material_general, vertices, 4, indices, 6);
 974                         }
 975                 }
 976 #endif
 977                 else if(n.getContent() == CONTENT_PAPYRUS)
 978                 {
 979                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 980                         video::SColor c = MapBlock_LightColor(255, l);
 981
 982                         for(u32 j=0; j<4; j++)
 983                         {
 984                                 video::S3DVertex vertices[4] =
 985                                 {
 986                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 987                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 988                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 989                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 990                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 991                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 992                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 993                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 994                                 };
 995
 996                                 if(j == 0)
 997                                 {
 998                                         for(u16 i=0; i<4; i++)
 999                                                 vertices[i].Pos.rotateXZBy(45);
1000                                 }
1001                                 else if(j == 1)
1002                                 {
1003                                         for(u16 i=0; i<4; i++)
1004                                                 vertices[i].Pos.rotateXZBy(-45);
1005                                 }
1006                                 else if(j == 2)
1007                                 {
1008                                         for(u16 i=0; i<4; i++)
1009                                                 vertices[i].Pos.rotateXZBy(135);
1010                                 }
1011                                 else if(j == 3)
1012                                 {
1013                                         for(u16 i=0; i<4; i++)
1014                                                 vertices[i].Pos.rotateXZBy(-135);
1015                                 }
1016
1017                                 for(u16 i=0; i<4; i++)
1018                                 {
1019                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1020                                 }
1021
1022                                 u16 indices[] = {0,1,2,2,3,0};
1023                                 // Add to mesh collector
1024                                 collector.append(material_papyrus, vertices, 4, indices, 6);
1025                         }
1026                 }
1027                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
1028                 {
1029                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1030                         video::SColor c = MapBlock_LightColor(255, l);
1031
1032                         for(u32 j=0; j<4; j++)
1033                         {
1034                                 video::S3DVertex vertices[4] =
1035                                 {
1036                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1037                                                 pa_papyrus.x0(), pa_papyrus.y1()),
1038                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1039                                                 pa_papyrus.x1(), pa_papyrus.y1()),
1040                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1041                                                 pa_papyrus.x1(), pa_papyrus.y0()),
1042                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1043                                                 pa_papyrus.x0(), pa_papyrus.y0()),
1044                                 };
1045
1046                                 if(j == 0)
1047                                 {
1048                                         for(u16 i=0; i<4; i++)
1049                                                 vertices[i].Pos.rotateXZBy(45);
1050                                 }
1051                                 else if(j == 1)
1052                                 {
1053                                         for(u16 i=0; i<4; i++)
1054                                                 vertices[i].Pos.rotateXZBy(-45);
1055                                 }
1056                                 else if(j == 2)
1057                                 {
1058                                         for(u16 i=0; i<4; i++)
1059                                                 vertices[i].Pos.rotateXZBy(135);
1060                                 }
1061                                 else if(j == 3)
1062                                 {
1063                                         for(u16 i=0; i<4; i++)
1064                                                 vertices[i].Pos.rotateXZBy(-135);
1065                                 }
1066
1067                                 for(u16 i=0; i<4; i++)
1068                                 {
1069                                         vertices[i].Pos *= 1.3;
1070                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1071                                 }
1072
1073                                 u16 indices[] = {0,1,2,2,3,0};
1074                                 // Add to mesh collector
1075                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1076                         }
1077                 }
1078                 else if(n.getContent() == CONTENT_RAIL)
1079                 {
1080                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1081                         video::SColor c = MapBlock_LightColor(255, l);
1082
1083                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1084                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1085
1086                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1087                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1088                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1089                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1090
1091                         if(n_minus_x.getContent() == CONTENT_RAIL)
1092                                 is_rail_x[0] = true;
1093                         if(n_plus_x.getContent() == CONTENT_RAIL)
1094                                 is_rail_x[1] = true;
1095                         if(n_minus_z.getContent() == CONTENT_RAIL)
1096                                 is_rail_z[0] = true;
1097                         if(n_plus_z.getContent() == CONTENT_RAIL)
1098                                 is_rail_z[1] = true;
1099
1100                         float d = (float)BS/16;
1101                         video::S3DVertex vertices[4] =
1102                         {
1103                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1104                                         0, 1),
1105                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1106                                         1, 1),
1107                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1108                                         1, 0),
1109                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1110                                         0, 0),
1111                         };
1112
1113                         video::SMaterial material_rail;
1114                         material_rail.setFlag(video::EMF_LIGHTING, false);
1115                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
1116                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1117                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1118                         material_rail.MaterialType
1119                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1120
1121                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1122
1123                         // Assign textures
1124                         if(adjacencies < 2)
1125                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1126                         else if(adjacencies == 2)
1127                         {
1128                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1129                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1130                                 else
1131                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_curved.png"));
1132                         }
1133                         else if(adjacencies == 3)
1134                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_t_junction.png"));
1135                         else if(adjacencies == 4)
1136                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_crossing.png"));
1137
1138                         // Rotate textures
1139                         int angle = 0;
1140
1141                         if(adjacencies == 1)
1142                         {
1143                                 if(is_rail_x[0] || is_rail_x[1])
1144                                         angle = 90;
1145                         }
1146                         else if(adjacencies == 2)
1147                         {
1148                                 if(is_rail_x[0] && is_rail_x[1])
1149                                         angle = 90;
1150                                 else if(is_rail_x[0] && is_rail_z[0])
1151                                         angle = 270;
1152                                 else if(is_rail_x[0] && is_rail_z[1])
1153                                         angle = 180;
1154                                 else if(is_rail_x[1] && is_rail_z[1])
1155                                         angle = 90;
1156                         }
1157                         else if(adjacencies == 3)
1158                         {
1159                                 if(!is_rail_x[0])
1160                                         angle=0;
1161                                 if(!is_rail_x[1])
1162                                         angle=180;
1163                                 if(!is_rail_z[0])
1164                                         angle=90;
1165                                 if(!is_rail_z[1])
1166                                         angle=270;
1167                         }
1168
1169                         if(angle != 0) {
1170                                 for(u16 i=0; i<4; i++)
1171                                         vertices[i].Pos.rotateXZBy(angle);
1172                         }
1173
1174                         for(s32 i=0; i<4; i++)
1175                         {
1176                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1177                         }
1178
1179                         u16 indices[] = {0,1,2,2,3,0};
1180                         collector.append(material_rail, vertices, 4, indices, 6);
1181                 }
1182                 else if (n.getContent() == CONTENT_LADDER) {
1183                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1184                         video::SColor c(255,l,l,l);
1185
1186                         float d = (float)BS/16;
1187
1188                         // Assume wall is at X+
1189                         video::S3DVertex vertices[4] =
1190                         {
1191                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
1192                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
1193                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
1194                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
1195                         };
1196
1197                         v3s16 dir = unpackDir(n.param2);
1198
1199                         for(s32 i=0; i<4; i++)
1200                         {
1201                                 if(dir == v3s16(1,0,0))
1202                                         vertices[i].Pos.rotateXZBy(0);
1203                                 if(dir == v3s16(-1,0,0))
1204                                         vertices[i].Pos.rotateXZBy(180);
1205                                 if(dir == v3s16(0,0,1))
1206                                         vertices[i].Pos.rotateXZBy(90);
1207                                 if(dir == v3s16(0,0,-1))
1208                                         vertices[i].Pos.rotateXZBy(-90);
1209                                 if(dir == v3s16(0,-1,0))
1210                                         vertices[i].Pos.rotateXYBy(-90);
1211                                 if(dir == v3s16(0,1,0))
1212                                         vertices[i].Pos.rotateXYBy(90);
1213
1214                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1215                         }
1216
1217                         video::SMaterial material_ladder;
1218                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1219                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, false);
1220                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1221                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1222                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1223                         material_ladder.setTexture(0, g_texturesource->getTextureRaw("ladder.png"));
1224
1225                         u16 indices[] = {0,1,2,2,3,0};
1226                         // Add to mesh collector
1227                         collector.append(material_ladder, vertices, 4, indices, 6);
1228                 }
1229                 else if(n.getContent() == CONTENT_APPLE)
1230                 {
1231                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1232                         video::SColor c = MapBlock_LightColor(255, l);
1233
1234                         for(u32 j=0; j<4; j++)
1235                         {
1236                                 video::S3DVertex vertices[4] =
1237                                 {
1238                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1239                                                 pa_apple.x0(), pa_apple.y1()),
1240                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1241                                                 pa_apple.x1(), pa_apple.y1()),
1242                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
1243                                                 pa_apple.x1(), pa_apple.y0()),
1244                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
1245                                                 pa_apple.x0(), pa_apple.y0()),
1246                                 };
1247
1248                                 if(j == 0)
1249                                 {
1250                                         for(u16 i=0; i<4; i++)
1251                                                 vertices[i].Pos.rotateXZBy(45);
1252                                 }
1253                                 else if(j == 1)
1254                                 {
1255                                         for(u16 i=0; i<4; i++)
1256                                                 vertices[i].Pos.rotateXZBy(-45);
1257                                 }
1258                                 else if(j == 2)
1259                                 {
1260                                         for(u16 i=0; i<4; i++)
1261                                                 vertices[i].Pos.rotateXZBy(135);
1262                                 }
1263                                 else if(j == 3)
1264                                 {
1265                                         for(u16 i=0; i<4; i++)
1266                                                 vertices[i].Pos.rotateXZBy(-135);
1267                                 }
1268
1269                                 for(u16 i=0; i<4; i++)
1270                                 {
1271                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1272                                 }
1273
1274                                 u16 indices[] = {0,1,2,2,3,0};
1275                                 // Add to mesh collector
1276                                 collector.append(material_apple, vertices, 4, indices, 6);
1277                         }
1278                 }
1279                 else if(n.getContent() == CONTENT_SAPLING) {
1280                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1281                         video::SColor c = MapBlock_LightColor(255, l);
1282
1283                         for(u32 j=0; j<4; j++)
1284                         {
1285                                 video::S3DVertex vertices[4] =
1286                                 {
1287                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1288                                                 pa_sapling.x0(), pa_sapling.y1()),
1289                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1290                                                 pa_sapling.x1(), pa_sapling.y1()),
1291                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1292                                                 pa_sapling.x1(), pa_sapling.y0()),
1293                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1294                                                 pa_sapling.x0(), pa_sapling.y0()),
1295                                 };
1296
1297                                 if(j == 0)
1298                                 {
1299                                         for(u16 i=0; i<4; i++)
1300                                                 vertices[i].Pos.rotateXZBy(45);
1301                                 }
1302                                 else if(j == 1)
1303                                 {
1304                                         for(u16 i=0; i<4; i++)
1305                                                 vertices[i].Pos.rotateXZBy(-45);
1306                                 }
1307                                 else if(j == 2)
1308                                 {
1309                                         for(u16 i=0; i<4; i++)
1310                                                 vertices[i].Pos.rotateXZBy(135);
1311                                 }
1312                                 else if(j == 3)
1313                                 {
1314                                         for(u16 i=0; i<4; i++)
1315                                                 vertices[i].Pos.rotateXZBy(-135);
1316                                 }
1317
1318                                 for(u16 i=0; i<4; i++)
1319                                 {
1320                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1321                                 }
1322
1323                                 u16 indices[] = {0,1,2,2,3,0};
1324                                 // Add to mesh collector
1325                                 collector.append(material_sapling, vertices, 4, indices, 6);
1326                         }
1327                 }
1328         }
1329 }
1330 #endif
1331