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         // Apple material
 193         video::SMaterial material_apple;
 194         material_apple.setFlag(video::EMF_LIGHTING, false);
 195         material_apple.setFlag(video::EMF_BILINEAR_FILTER, false);
 196         material_apple.setFlag(video::EMF_FOG_ENABLE, true);
 197         material_apple.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 198         AtlasPointer pa_apple = g_texturesource->getTexture(
 199                         g_texturesource->getTextureId("apple.png"));
 200         material_apple.setTexture(0, pa_apple.atlas);
 201
 202
 203         // Sapling material
 204         video::SMaterial material_sapling;
 205         material_sapling.setFlag(video::EMF_LIGHTING, false);
 206         material_sapling.setFlag(video::EMF_BILINEAR_FILTER, false);
 207         material_sapling.setFlag(video::EMF_FOG_ENABLE, true);
 208         material_sapling.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 209         AtlasPointer pa_sapling = g_texturesource->getTexture(
 210                         g_texturesource->getTextureId("sapling.png"));
 211         material_sapling.setTexture(0, pa_sapling.atlas);
 212
 213
 214         // junglegrass material
 215         video::SMaterial material_junglegrass;
 216         material_junglegrass.setFlag(video::EMF_LIGHTING, false);
 217         material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
 218         material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
 219         material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 220         AtlasPointer pa_junglegrass = g_texturesource->getTexture(
 221                         g_texturesource->getTextureId("junglegrass.png"));
 222         material_junglegrass.setTexture(0, pa_junglegrass.atlas);
 223
 224         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 225         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 226         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 227         {
 228                 v3s16 p(x,y,z);
 229
 230                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 231
 232                 /*
 233                         Add torches to mesh
 234                 */
 235                 if(n.getContent() == CONTENT_TORCH)
 236                 {
 237                         video::SColor c(255,255,255,255);
 238
 239                         // Wall at X+ of node
 240                         video::S3DVertex vertices[4] =
 241                         {
 242                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
 243                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
 244                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
 245                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
 246                         };
 247
 248                         v3s16 dir = unpackDir(n.param2);
 249
 250                         for(s32 i=0; i<4; i++)
 251                         {
 252                                 if(dir == v3s16(1,0,0))
 253                                         vertices[i].Pos.rotateXZBy(0);
 254                                 if(dir == v3s16(-1,0,0))
 255                                         vertices[i].Pos.rotateXZBy(180);
 256                                 if(dir == v3s16(0,0,1))
 257                                         vertices[i].Pos.rotateXZBy(90);
 258                                 if(dir == v3s16(0,0,-1))
 259                                         vertices[i].Pos.rotateXZBy(-90);
 260                                 if(dir == v3s16(0,-1,0))
 261                                         vertices[i].Pos.rotateXZBy(45);
 262                                 if(dir == v3s16(0,1,0))
 263                                         vertices[i].Pos.rotateXZBy(-45);
 264
 265                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 266                         }
 267
 268                         // Set material
 269                         video::SMaterial material;
 270                         material.setFlag(video::EMF_LIGHTING, false);
 271                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 272                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 273                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 274                         material.MaterialType
 275                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 276
 277                         if(dir == v3s16(0,-1,0))
 278                                 material.setTexture(0,
 279                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 280                         else if(dir == v3s16(0,1,0))
 281                                 material.setTexture(0,
 282                                                 g_texturesource->getTextureRaw("torch_on_ceiling.png"));
 283                         // For backwards compatibility
 284                         else if(dir == v3s16(0,0,0))
 285                                 material.setTexture(0,
 286                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 287                         else
 288                                 material.setTexture(0,
 289                                                 g_texturesource->getTextureRaw("torch.png"));
 290
 291                         u16 indices[] = {0,1,2,2,3,0};
 292                         // Add to mesh collector
 293                         collector.append(material, vertices, 4, indices, 6);
 294                 }
 295                 /*
 296                         Signs on walls
 297                 */
 298                 else if(n.getContent() == CONTENT_SIGN_WALL)
 299                 {
 300                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 301                         video::SColor c = MapBlock_LightColor(255, l);
 302
 303                         float d = (float)BS/16;
 304                         // Wall at X+ of node
 305                         video::S3DVertex vertices[4] =
 306                         {
 307                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
 308                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
 309                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
 310                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
 311                         };
 312
 313                         v3s16 dir = unpackDir(n.param2);
 314
 315                         for(s32 i=0; i<4; i++)
 316                         {
 317                                 if(dir == v3s16(1,0,0))
 318                                         vertices[i].Pos.rotateXZBy(0);
 319                                 if(dir == v3s16(-1,0,0))
 320                                         vertices[i].Pos.rotateXZBy(180);
 321                                 if(dir == v3s16(0,0,1))
 322                                         vertices[i].Pos.rotateXZBy(90);
 323                                 if(dir == v3s16(0,0,-1))
 324                                         vertices[i].Pos.rotateXZBy(-90);
 325                                 if(dir == v3s16(0,-1,0))
 326                                         vertices[i].Pos.rotateXYBy(-90);
 327                                 if(dir == v3s16(0,1,0))
 328                                         vertices[i].Pos.rotateXYBy(90);
 329
 330                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 331                         }
 332
 333                         // Set material
 334                         video::SMaterial material;
 335                         material.setFlag(video::EMF_LIGHTING, false);
 336                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 337                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 338                         material.setFlag(video::EMF_FOG_ENABLE, true);
 339                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 340                         material.MaterialType
 341                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 342
 343                         material.setTexture(0,
 344                                         g_texturesource->getTextureRaw("sign_wall.png"));
 345
 346                         u16 indices[] = {0,1,2,2,3,0};
 347                         // Add to mesh collector
 348                         collector.append(material, vertices, 4, indices, 6);
 349                 }
 350                 /*
 351                         Add flowing liquid to mesh
 352                 */
 353                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 354                 {
 355                         assert(content_features(n).special_material);
 356                         video::SMaterial &liquid_material =
 357                                         *content_features(n).special_material;
 358                         assert(content_features(n).special_atlas);
 359                         AtlasPointer &pa_liquid1 =
 360                                         *content_features(n).special_atlas;
 361
 362                         bool top_is_same_liquid = false;
 363                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 364                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 365                         content_t c_source = content_features(n).liquid_alternative_source;
 366                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 367                                 top_is_same_liquid = true;
 368
 369                         u8 l = 0;
 370                         // Use the light of the node on top if possible
 371                         if(content_features(ntop).param_type == CPT_LIGHT)
 372                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 373                         // Otherwise use the light of this node (the liquid)
 374                         else
 375                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 376                         video::SColor c = MapBlock_LightColor(
 377                                         content_features(n).vertex_alpha, l);
 378
 379                         // Neighbor liquid levels (key = relative position)
 380                         // Includes current node
 381                         core::map<v3s16, f32> neighbor_levels;
 382                         core::map<v3s16, content_t> neighbor_contents;
 383                         core::map<v3s16, u8> neighbor_flags;
 384                         const u8 neighborflag_top_is_same_liquid = 0x01;
 385                         v3s16 neighbor_dirs[9] = {
 386                                 v3s16(0,0,0),
 387                                 v3s16(0,0,1),
 388                                 v3s16(0,0,-1),
 389                                 v3s16(1,0,0),
 390                                 v3s16(-1,0,0),
 391                                 v3s16(1,0,1),
 392                                 v3s16(-1,0,-1),
 393                                 v3s16(1,0,-1),
 394                                 v3s16(-1,0,1),
 395                         };
 396                         for(u32 i=0; i<9; i++)
 397                         {
 398                                 content_t content = CONTENT_AIR;
 399                                 float level = -0.5 * BS;
 400                                 u8 flags = 0;
 401                                 // Check neighbor
 402                                 v3s16 p2 = p + neighbor_dirs[i];
 403                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 404                                 if(n2.getContent() != CONTENT_IGNORE)
 405                                 {
 406                                         content = n2.getContent();
 407
 408                                         if(n2.getContent() == c_source)
 409                                                 level = (-0.5+node_liquid_level) * BS;
 410                                         else if(n2.getContent() == c_flowing)
 411                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 412                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 413
 414                                         // Check node above neighbor.
 415                                         // NOTE: This doesn't get executed if neighbor
 416                                         //       doesn't exist
 417                                         p2.Y += 1;
 418                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 419                                         if(n2.getContent() == c_source ||
 420                                                         n2.getContent() == c_flowing)
 421                                                 flags |= neighborflag_top_is_same_liquid;
 422                                 }
 423
 424                                 neighbor_levels.insert(neighbor_dirs[i], level);
 425                                 neighbor_contents.insert(neighbor_dirs[i], content);
 426                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 427                         }
 428
 429                         // Corner heights (average between four liquids)
 430                         f32 corner_levels[4];
 431
 432                         v3s16 halfdirs[4] = {
 433                                 v3s16(0,0,0),
 434                                 v3s16(1,0,0),
 435                                 v3s16(1,0,1),
 436                                 v3s16(0,0,1),
 437                         };
 438                         for(u32 i=0; i<4; i++)
 439                         {
 440                                 v3s16 cornerdir = halfdirs[i];
 441                                 float cornerlevel = 0;
 442                                 u32 valid_count = 0;
 443                                 u32 air_count = 0;
 444                                 for(u32 j=0; j<4; j++)
 445                                 {
 446                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 447                                         content_t content = neighbor_contents[neighbordir];
 448                                         // If top is liquid, draw starting from top of node
 449                                         if(neighbor_flags[neighbordir] &
 450                                                         neighborflag_top_is_same_liquid)
 451                                         {
 452                                                 cornerlevel = 0.5*BS;
 453                                                 valid_count = 1;
 454                                                 break;
 455                                         }
 456                                         // Source is always the same height
 457                                         else if(content == c_source)
 458                                         {
 459                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 460                                                 valid_count = 1;
 461                                                 break;
 462                                         }
 463                                         // Flowing liquid has level information
 464                                         else if(content == c_flowing)
 465                                         {
 466                                                 cornerlevel += neighbor_levels[neighbordir];
 467                                                 valid_count++;
 468                                         }
 469                                         else if(content == CONTENT_AIR)
 470                                         {
 471                                                 air_count++;
 472                                         }
 473                                 }
 474                                 if(air_count >= 2)
 475                                         cornerlevel = -0.5*BS;
 476                                 else if(valid_count > 0)
 477                                         cornerlevel /= valid_count;
 478                                 corner_levels[i] = cornerlevel;
 479                         }
 480
 481                         /*
 482                                 Generate sides
 483                         */
 484
 485                         v3s16 side_dirs[4] = {
 486                                 v3s16(1,0,0),
 487                                 v3s16(-1,0,0),
 488                                 v3s16(0,0,1),
 489                                 v3s16(0,0,-1),
 490                         };
 491                         s16 side_corners[4][2] = {
 492                                 {1, 2},
 493                                 {3, 0},
 494                                 {2, 3},
 495                                 {0, 1},
 496                         };
 497                         for(u32 i=0; i<4; i++)
 498                         {
 499                                 v3s16 dir = side_dirs[i];
 500
 501                                 /*
 502                                         If our topside is liquid and neighbor's topside
 503                                         is liquid, don't draw side face
 504                                 */
 505                                 if(top_is_same_liquid &&
 506                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 507                                         continue;
 508
 509                                 content_t neighbor_content = neighbor_contents[dir];
 510
 511                                 // Don't draw face if neighbor is not air or liquid
 512                                 if(neighbor_content != CONTENT_AIR
 513                                                 && content_liquid(neighbor_content) == false)
 514                                         continue;
 515
 516                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 517                                                 || neighbor_content == c_flowing);
 518
 519                                 // Don't draw any faces if neighbor same is liquid and top is
 520                                 // same liquid
 521                                 if(neighbor_is_same_liquid == true
 522                                                 && top_is_same_liquid == false)
 523                                         continue;
 524
 525                                 video::S3DVertex vertices[4] =
 526                                 {
 527                                         /*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 528                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 529                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 530                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 531                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 532                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 533                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 534                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 535                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 536                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 537                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 538                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 539                                 };
 540
 541                                 /*
 542                                         If our topside is liquid, set upper border of face
 543                                         at upper border of node
 544                                 */
 545                                 if(top_is_same_liquid)
 546                                 {
 547                                         vertices[2].Pos.Y = 0.5*BS;
 548                                         vertices[3].Pos.Y = 0.5*BS;
 549                                 }
 550                                 /*
 551                                         Otherwise upper position of face is corner levels
 552                                 */
 553                                 else
 554                                 {
 555                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 556                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 557                                 }
 558
 559                                 /*
 560                                         If neighbor is liquid, lower border of face is corner
 561                                         liquid levels
 562                                 */
 563                                 if(neighbor_is_same_liquid)
 564                                 {
 565                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 566                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 567                                 }
 568                                 /*
 569                                         If neighbor is not liquid, lower border of face is
 570                                         lower border of node
 571                                 */
 572                                 else
 573                                 {
 574                                         vertices[0].Pos.Y = -0.5*BS;
 575                                         vertices[1].Pos.Y = -0.5*BS;
 576                                 }
 577
 578                                 for(s32 j=0; j<4; j++)
 579                                 {
 580                                         if(dir == v3s16(0,0,1))
 581                                                 vertices[j].Pos.rotateXZBy(0);
 582                                         if(dir == v3s16(0,0,-1))
 583                                                 vertices[j].Pos.rotateXZBy(180);
 584                                         if(dir == v3s16(-1,0,0))
 585                                                 vertices[j].Pos.rotateXZBy(90);
 586                                         if(dir == v3s16(1,0,-0))
 587                                                 vertices[j].Pos.rotateXZBy(-90);
 588
 589                                         // Do this to not cause glitches when two liquids are
 590                                         // side-by-side
 591                                         if(neighbor_is_same_liquid == false){
 592                                                 vertices[j].Pos.X *= 0.98;
 593                                                 vertices[j].Pos.Z *= 0.98;
 594                                         }
 595
 596                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 597                                 }
 598
 599                                 u16 indices[] = {0,1,2,2,3,0};
 600                                 // Add to mesh collector
 601                                 collector.append(liquid_material, vertices, 4, indices, 6);
 602                         }
 603
 604                         /*
 605                                 Generate top side, if appropriate
 606                         */
 607
 608                         if(top_is_same_liquid == false)
 609                         {
 610                                 video::S3DVertex vertices[4] =
 611                                 {
 612                                         /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 613                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 614                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 615                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 616                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 617                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 618                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 619                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 620                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 621                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 622                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 623                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 624                                 };
 625
 626                                 // This fixes a strange bug
 627                                 s32 corner_resolve[4] = {3,2,1,0};
 628
 629                                 for(s32 i=0; i<4; i++)
 630                                 {
 631                                         //vertices[i].Pos.Y += liquid_level;
 632                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 633                                         s32 j = corner_resolve[i];
 634                                         vertices[i].Pos.Y += corner_levels[j];
 635                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 636                                 }
 637
 638                                 u16 indices[] = {0,1,2,2,3,0};
 639                                 // Add to mesh collector
 640                                 collector.append(liquid_material, vertices, 4, indices, 6);
 641                         }
 642                 }
 643                 /*
 644                         Add water sources to mesh if using new style
 645                 */
 646                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 647                                 && new_style_water)
 648                 {
 649                         assert(content_features(n).special_material);
 650                         video::SMaterial &liquid_material =
 651                                         *content_features(n).special_material;
 652                         assert(content_features(n).special_atlas);
 653                         AtlasPointer &pa_liquid1 =
 654                                         *content_features(n).special_atlas;
 655
 656                         bool top_is_air = false;
 657                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 658                         if(n.getContent() == CONTENT_AIR)
 659                                 top_is_air = true;
 660
 661                         if(top_is_air == false)
 662                                 continue;
 663
 664                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 665                         video::SColor c = MapBlock_LightColor(
 666                                         content_features(n).vertex_alpha, l);
 667
 668                         video::S3DVertex vertices[4] =
 669                         {
 670                                 /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 671                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 672                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 673                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 674                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 675                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 676                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 677                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 678                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 679                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 680                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 681                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 682                         };
 683
 684                         for(s32 i=0; i<4; i++)
 685                         {
 686                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 687                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 688                         }
 689
 690                         u16 indices[] = {0,1,2,2,3,0};
 691                         // Add to mesh collector
 692                         collector.append(liquid_material, vertices, 4, indices, 6);
 693                 }
 694                 /*
 695                         Add leaves if using new style
 696                 */
 697                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 698                 {
 699                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 700                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 701                         video::SColor c = MapBlock_LightColor(255, l);
 702
 703                         for(u32 j=0; j<6; j++)
 704                         {
 705                                 video::S3DVertex vertices[4] =
 706                                 {
 707                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 708                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 709                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 710                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 711                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 712                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 713                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 714                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 715                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 716                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 717                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 718                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 719                                 };
 720
 721                                 if(j == 0)
 722                                 {
 723                                         for(u16 i=0; i<4; i++)
 724                                                 vertices[i].Pos.rotateXZBy(0);
 725                                 }
 726                                 else if(j == 1)
 727                                 {
 728                                         for(u16 i=0; i<4; i++)
 729                                                 vertices[i].Pos.rotateXZBy(180);
 730                                 }
 731                                 else if(j == 2)
 732                                 {
 733                                         for(u16 i=0; i<4; i++)
 734                                                 vertices[i].Pos.rotateXZBy(-90);
 735                                 }
 736                                 else if(j == 3)
 737                                 {
 738                                         for(u16 i=0; i<4; i++)
 739                                                 vertices[i].Pos.rotateXZBy(90);
 740                                 }
 741                                 else if(j == 4)
 742                                 {
 743                                         for(u16 i=0; i<4; i++)
 744                                                 vertices[i].Pos.rotateYZBy(-90);
 745                                 }
 746                                 else if(j == 5)
 747                                 {
 748                                         for(u16 i=0; i<4; i++)
 749                                                 vertices[i].Pos.rotateYZBy(90);
 750                                 }
 751
 752                                 for(u16 i=0; i<4; i++)
 753                                 {
 754                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 755                                 }
 756
 757                                 u16 indices[] = {0,1,2,2,3,0};
 758                                 // Add to mesh collector
 759                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 760                         }
 761                 }
 762                 /*
 763                         Add glass
 764                 */
 765                 else if(n.getContent() == CONTENT_GLASS)
 766                 {
 767                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 768                         video::SColor c = MapBlock_LightColor(255, l);
 769
 770                         for(u32 j=0; j<6; j++)
 771                         {
 772                                 video::S3DVertex vertices[4] =
 773                                 {
 774                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 775                                                 pa_glass.x0(), pa_glass.y1()),
 776                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 777                                                 pa_glass.x1(), pa_glass.y1()),
 778                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 779                                                 pa_glass.x1(), pa_glass.y0()),
 780                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 781                                                 pa_glass.x0(), pa_glass.y0()),
 782                                 };
 783
 784                                 if(j == 0)
 785                                 {
 786                                         for(u16 i=0; i<4; i++)
 787                                                 vertices[i].Pos.rotateXZBy(0);
 788                                 }
 789                                 else if(j == 1)
 790                                 {
 791                                         for(u16 i=0; i<4; i++)
 792                                                 vertices[i].Pos.rotateXZBy(180);
 793                                 }
 794                                 else if(j == 2)
 795                                 {
 796                                         for(u16 i=0; i<4; i++)
 797                                                 vertices[i].Pos.rotateXZBy(-90);
 798                                 }
 799                                 else if(j == 3)
 800                                 {
 801                                         for(u16 i=0; i<4; i++)
 802                                                 vertices[i].Pos.rotateXZBy(90);
 803                                 }
 804                                 else if(j == 4)
 805                                 {
 806                                         for(u16 i=0; i<4; i++)
 807                                                 vertices[i].Pos.rotateYZBy(-90);
 808                                 }
 809                                 else if(j == 5)
 810                                 {
 811                                         for(u16 i=0; i<4; i++)
 812                                                 vertices[i].Pos.rotateYZBy(90);
 813                                 }
 814
 815                                 for(u16 i=0; i<4; i++)
 816                                 {
 817                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 818                                 }
 819
 820                                 u16 indices[] = {0,1,2,2,3,0};
 821                                 // Add to mesh collector
 822                                 collector.append(material_glass, vertices, 4, indices, 6);
 823                         }
 824                 }
 825                 /*
 826                         Add fence
 827                 */
 828                 else if(n.getContent() == CONTENT_FENCE)
 829                 {
 830                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 831                         video::SColor c = MapBlock_LightColor(255, l);
 832
 833                         const f32 post_rad=(f32)BS/10;
 834                         const f32 bar_rad=(f32)BS/20;
 835                         const f32 bar_len=(f32)(BS/2)-post_rad;
 836
 837                         // The post - always present
 838                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 839                         f32 postuv[24]={
 840                                         0.4,0.4,0.6,0.6,
 841                                         0.35,0,0.65,1,
 842                                         0.35,0,0.65,1,
 843                                         0.35,0,0.65,1,
 844                                         0.35,0,0.65,1,
 845                                         0.4,0.4,0.6,0.6};
 846                         makeCuboid(material_wood, &collector,
 847                                 &pa_wood, c, pos,
 848                                 post_rad,BS/2,post_rad, postuv);
 849
 850                         // Now a section of fence, +X, if there's a post there
 851                         v3s16 p2 = p;
 852                         p2.X++;
 853                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 854                         if(n2.getContent() == CONTENT_FENCE)
 855                         {
 856                                 pos = intToFloat(p+blockpos_nodes, BS);
 857                                 pos.X += BS/2;
 858                                 pos.Y += BS/4;
 859                                 f32 xrailuv[24]={
 860                                         0,0.4,1,0.6,
 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                                 makeCuboid(material_wood, &collector,
 867                                         &pa_wood, c, pos,
 868                                         bar_len,bar_rad,bar_rad, xrailuv);
 869
 870                                 pos.Y -= BS/2;
 871                                 makeCuboid(material_wood, &collector,
 872                                         &pa_wood, c, pos,
 873                                         bar_len,bar_rad,bar_rad, xrailuv);
 874                         }
 875
 876                         // Now a section of fence, +Z, if there's a post there
 877                         p2 = p;
 878                         p2.Z++;
 879                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 880                         if(n2.getContent() == CONTENT_FENCE)
 881                         {
 882                                 pos = intToFloat(p+blockpos_nodes, BS);
 883                                 pos.Z += BS/2;
 884                                 pos.Y += BS/4;
 885                                 f32 zrailuv[24]={
 886                                         0,0.4,1,0.6,
 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                                 makeCuboid(material_wood, &collector,
 893                                         &pa_wood, c, pos,
 894                                         bar_rad,bar_rad,bar_len, zrailuv);
 895                                 pos.Y -= BS/2;
 896                                 makeCuboid(material_wood, &collector,
 897                                         &pa_wood, c, pos,
 898                                         bar_rad,bar_rad,bar_len, zrailuv);
 899
 900                         }
 901
 902                 }
 903 #if 1
 904                 /*
 905                         Add stones with minerals if stone is invisible
 906                 */
 907                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 908                 {
 909                         for(u32 j=0; j<6; j++)
 910                         {
 911                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 912                                 v3s16 dir = g_6dirs[j];
 913                                 /*u8 l = 0;
 914                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 915                                 if(content_features(n2).param_type == CPT_LIGHT)
 916                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 917                                 else
 918                                         l = 255;*/
 919                                 u8 l = 255;
 920                                 video::SColor c = MapBlock_LightColor(255, l);
 921
 922                                 // Get the right texture
 923                                 TileSpec ts = n.getTile(dir);
 924                                 AtlasPointer ap = ts.texture;
 925                                 material_general.setTexture(0, ap.atlas);
 926
 927                                 video::S3DVertex vertices[4] =
 928                                 {
 929                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 930                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 931                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 932                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 933                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 934                                                 ap.x0(), ap.y1()),
 935                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 936                                                 ap.x1(), ap.y1()),
 937                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 938                                                 ap.x1(), ap.y0()),
 939                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 940                                                 ap.x0(), ap.y0()),
 941                                 };
 942
 943                                 if(j == 0)
 944                                 {
 945                                         for(u16 i=0; i<4; i++)
 946                                                 vertices[i].Pos.rotateXZBy(0);
 947                                 }
 948                                 else if(j == 1)
 949                                 {
 950                                         for(u16 i=0; i<4; i++)
 951                                                 vertices[i].Pos.rotateXZBy(180);
 952                                 }
 953                                 else if(j == 2)
 954                                 {
 955                                         for(u16 i=0; i<4; i++)
 956                                                 vertices[i].Pos.rotateXZBy(-90);
 957                                 }
 958                                 else if(j == 3)
 959                                 {
 960                                         for(u16 i=0; i<4; i++)
 961                                                 vertices[i].Pos.rotateXZBy(90);
 962                                 }
 963                                 else if(j == 4)
 964
 965                                 for(u16 i=0; i<4; i++)
 966                                 {
 967                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 968                                 }
 969
 970                                 u16 indices[] = {0,1,2,2,3,0};
 971                                 // Add to mesh collector
 972                                 collector.append(material_general, vertices, 4, indices, 6);
 973                         }
 974                 }
 975 #endif
 976                 else if(n.getContent() == CONTENT_PAPYRUS)
 977                 {
 978                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 979                         video::SColor c = MapBlock_LightColor(255, l);
 980
 981                         for(u32 j=0; j<4; j++)
 982                         {
 983                                 video::S3DVertex vertices[4] =
 984                                 {
 985                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 986                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 987                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 988                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 989                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 990                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 991                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 992                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 993                                 };
 994
 995                                 if(j == 0)
 996                                 {
 997                                         for(u16 i=0; i<4; i++)
 998                                                 vertices[i].Pos.rotateXZBy(45);
 999                                 }
1000                                 else if(j == 1)
1001                                 {
1002                                         for(u16 i=0; i<4; i++)
1003                                                 vertices[i].Pos.rotateXZBy(-45);
1004                                 }
1005                                 else if(j == 2)
1006                                 {
1007                                         for(u16 i=0; i<4; i++)
1008                                                 vertices[i].Pos.rotateXZBy(135);
1009                                 }
1010                                 else if(j == 3)
1011                                 {
1012                                         for(u16 i=0; i<4; i++)
1013                                                 vertices[i].Pos.rotateXZBy(-135);
1014                                 }
1015
1016                                 for(u16 i=0; i<4; i++)
1017                                 {
1018                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1019                                 }
1020
1021                                 u16 indices[] = {0,1,2,2,3,0};
1022                                 // Add to mesh collector
1023                                 collector.append(material_papyrus, vertices, 4, indices, 6);
1024                         }
1025                 }
1026                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
1027                 {
1028                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1029                         video::SColor c = MapBlock_LightColor(255, l);
1030
1031                         for(u32 j=0; j<4; j++)
1032                         {
1033                                 video::S3DVertex vertices[4] =
1034                                 {
1035                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1036                                                 pa_papyrus.x0(), pa_papyrus.y1()),
1037                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1038                                                 pa_papyrus.x1(), pa_papyrus.y1()),
1039                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1040                                                 pa_papyrus.x1(), pa_papyrus.y0()),
1041                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1042                                                 pa_papyrus.x0(), pa_papyrus.y0()),
1043                                 };
1044
1045                                 if(j == 0)
1046                                 {
1047                                         for(u16 i=0; i<4; i++)
1048                                                 vertices[i].Pos.rotateXZBy(45);
1049                                 }
1050                                 else if(j == 1)
1051                                 {
1052                                         for(u16 i=0; i<4; i++)
1053                                                 vertices[i].Pos.rotateXZBy(-45);
1054                                 }
1055                                 else if(j == 2)
1056                                 {
1057                                         for(u16 i=0; i<4; i++)
1058                                                 vertices[i].Pos.rotateXZBy(135);
1059                                 }
1060                                 else if(j == 3)
1061                                 {
1062                                         for(u16 i=0; i<4; i++)
1063                                                 vertices[i].Pos.rotateXZBy(-135);
1064                                 }
1065
1066                                 for(u16 i=0; i<4; i++)
1067                                 {
1068                                         vertices[i].Pos *= 1.3;
1069                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1070                                 }
1071
1072                                 u16 indices[] = {0,1,2,2,3,0};
1073                                 // Add to mesh collector
1074                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1075                         }
1076                 }
1077                 else if(n.getContent() == CONTENT_RAIL)
1078                 {
1079                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1080                         video::SColor c = MapBlock_LightColor(255, l);
1081
1082                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1083                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1084
1085                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1086                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1087                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1088                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1089
1090                         if(n_minus_x.getContent() == CONTENT_RAIL)
1091                                 is_rail_x[0] = true;
1092                         if(n_plus_x.getContent() == CONTENT_RAIL)
1093                                 is_rail_x[1] = true;
1094                         if(n_minus_z.getContent() == CONTENT_RAIL)
1095                                 is_rail_z[0] = true;
1096                         if(n_plus_z.getContent() == CONTENT_RAIL)
1097                                 is_rail_z[1] = true;
1098
1099                         float d = (float)BS/16;
1100                         video::S3DVertex vertices[4] =
1101                         {
1102                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1103                                         0, 1),
1104                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1105                                         1, 1),
1106                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1107                                         1, 0),
1108                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1109                                         0, 0),
1110                         };
1111
1112                         video::SMaterial material_rail;
1113                         material_rail.setFlag(video::EMF_LIGHTING, false);
1114                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
1115                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1116                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1117                         material_rail.MaterialType
1118                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1119
1120                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1121
1122                         // Assign textures
1123                         if(adjacencies < 2)
1124                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1125                         else if(adjacencies == 2)
1126                         {
1127                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1128                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1129                                 else
1130                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_curved.png"));
1131                         }
1132                         else if(adjacencies == 3)
1133                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_t_junction.png"));
1134                         else if(adjacencies == 4)
1135                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_crossing.png"));
1136
1137                         // Rotate textures
1138                         int angle = 0;
1139
1140                         if(adjacencies == 1)
1141                         {
1142                                 if(is_rail_x[0] || is_rail_x[1])
1143                                         angle = 90;
1144                         }
1145                         else if(adjacencies == 2)
1146                         {
1147                                 if(is_rail_x[0] && is_rail_x[1])
1148                                         angle = 90;
1149                                 else if(is_rail_x[0] && is_rail_z[0])
1150                                         angle = 270;
1151                                 else if(is_rail_x[0] && is_rail_z[1])
1152                                         angle = 180;
1153                                 else if(is_rail_x[1] && is_rail_z[1])
1154                                         angle = 90;
1155                         }
1156                         else if(adjacencies == 3)
1157                         {
1158                                 if(!is_rail_x[0])
1159                                         angle=0;
1160                                 if(!is_rail_x[1])
1161                                         angle=180;
1162                                 if(!is_rail_z[0])
1163                                         angle=90;
1164                                 if(!is_rail_z[1])
1165                                         angle=270;
1166                         }
1167
1168                         if(angle != 0) {
1169                                 for(u16 i=0; i<4; i++)
1170                                         vertices[i].Pos.rotateXZBy(angle);
1171                         }
1172
1173                         for(s32 i=0; i<4; i++)
1174                         {
1175                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1176                         }
1177
1178                         u16 indices[] = {0,1,2,2,3,0};
1179                         collector.append(material_rail, vertices, 4, indices, 6);
1180                 }
1181                 else if (n.getContent() == CONTENT_LADDER) {
1182                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1183                         video::SColor c(255,l,l,l);
1184
1185                         float d = (float)BS/16;
1186
1187                         // Assume wall is at X+
1188                         video::S3DVertex vertices[4] =
1189                         {
1190                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
1191                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
1192                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
1193                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
1194                         };
1195
1196                         v3s16 dir = unpackDir(n.param2);
1197
1198                         for(s32 i=0; i<4; i++)
1199                         {
1200                                 if(dir == v3s16(1,0,0))
1201                                         vertices[i].Pos.rotateXZBy(0);
1202                                 if(dir == v3s16(-1,0,0))
1203                                         vertices[i].Pos.rotateXZBy(180);
1204                                 if(dir == v3s16(0,0,1))
1205                                         vertices[i].Pos.rotateXZBy(90);
1206                                 if(dir == v3s16(0,0,-1))
1207                                         vertices[i].Pos.rotateXZBy(-90);
1208                                 if(dir == v3s16(0,-1,0))
1209                                         vertices[i].Pos.rotateXYBy(-90);
1210                                 if(dir == v3s16(0,1,0))
1211                                         vertices[i].Pos.rotateXYBy(90);
1212
1213                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1214                         }
1215
1216                         video::SMaterial material_ladder;
1217                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1218                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, false);
1219                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1220                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1221                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1222                         material_ladder.setTexture(0, g_texturesource->getTextureRaw("ladder.png"));
1223
1224                         u16 indices[] = {0,1,2,2,3,0};
1225                         // Add to mesh collector
1226                         collector.append(material_ladder, vertices, 4, indices, 6);
1227                 }
1228                 else if(n.getContent() == CONTENT_APPLE)
1229                 {
1230                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1231                         video::SColor c = MapBlock_LightColor(255, l);
1232
1233                         for(u32 j=0; j<4; j++)
1234                         {
1235                                 video::S3DVertex vertices[4] =
1236                                 {
1237                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1238                                                 pa_apple.x0(), pa_apple.y1()),
1239                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1240                                                 pa_apple.x1(), pa_apple.y1()),
1241                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
1242                                                 pa_apple.x1(), pa_apple.y0()),
1243                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
1244                                                 pa_apple.x0(), pa_apple.y0()),
1245                                 };
1246
1247                                 if(j == 0)
1248                                 {
1249                                         for(u16 i=0; i<4; i++)
1250                                                 vertices[i].Pos.rotateXZBy(45);
1251                                 }
1252                                 else if(j == 1)
1253                                 {
1254                                         for(u16 i=0; i<4; i++)
1255                                                 vertices[i].Pos.rotateXZBy(-45);
1256                                 }
1257                                 else if(j == 2)
1258                                 {
1259                                         for(u16 i=0; i<4; i++)
1260                                                 vertices[i].Pos.rotateXZBy(135);
1261                                 }
1262                                 else if(j == 3)
1263                                 {
1264                                         for(u16 i=0; i<4; i++)
1265                                                 vertices[i].Pos.rotateXZBy(-135);
1266                                 }
1267
1268                                 for(u16 i=0; i<4; i++)
1269                                 {
1270                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1271                                 }
1272
1273                                 u16 indices[] = {0,1,2,2,3,0};
1274                                 // Add to mesh collector
1275                                 collector.append(material_apple, vertices, 4, indices, 6);
1276                         }
1277                 }
1278                 else if(n.getContent() == CONTENT_SAPLING) {
1279                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1280                         video::SColor c = MapBlock_LightColor(255, l);
1281
1282                         for(u32 j=0; j<4; j++)
1283                         {
1284                                 video::S3DVertex vertices[4] =
1285                                 {
1286                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1287                                                 pa_sapling.x0(), pa_sapling.y1()),
1288                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1289                                                 pa_sapling.x1(), pa_sapling.y1()),
1290                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1291                                                 pa_sapling.x1(), pa_sapling.y0()),
1292                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1293                                                 pa_sapling.x0(), pa_sapling.y0()),
1294                                 };
1295
1296                                 if(j == 0)
1297                                 {
1298                                         for(u16 i=0; i<4; i++)
1299                                                 vertices[i].Pos.rotateXZBy(45);
1300                                 }
1301                                 else if(j == 1)
1302                                 {
1303                                         for(u16 i=0; i<4; i++)
1304                                                 vertices[i].Pos.rotateXZBy(-45);
1305                                 }
1306                                 else if(j == 2)
1307                                 {
1308                                         for(u16 i=0; i<4; i++)
1309                                                 vertices[i].Pos.rotateXZBy(135);
1310                                 }
1311                                 else if(j == 3)
1312                                 {
1313                                         for(u16 i=0; i<4; i++)
1314                                                 vertices[i].Pos.rotateXZBy(-135);
1315                                 }
1316
1317                                 for(u16 i=0; i<4; i++)
1318                                 {
1319                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1320                                 }
1321
1322                                 u16 indices[] = {0,1,2,2,3,0};
1323                                 // Add to mesh collector
1324                                 collector.append(material_sapling, vertices, 4, indices, 6);
1325                         }
1326                 }
1327         }
1328 }
1329 #endif
1330