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_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                         v3s16 dir = unpackDir(n.param2);
 238
 239                         const char *texturename = "torch.png";
 240                         if(dir == v3s16(0,-1,0)){
 241                                 texturename = "torch_on_floor.png";
 242                         } else if(dir == v3s16(0,1,0)){
 243                                 texturename = "torch_on_ceiling.png";
 244                         // For backwards compatibility
 245                         } else if(dir == v3s16(0,0,0)){
 246                                 texturename = "torch_on_floor.png";
 247                         } else {
 248                                 texturename = "torch.png";
 249                         }
 250
 251                         AtlasPointer ap = g_texturesource->getTexture(texturename);
 252
 253                         // Set material
 254                         video::SMaterial material;
 255                         material.setFlag(video::EMF_LIGHTING, false);
 256                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 257                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 258                         material.setFlag(video::EMF_FOG_ENABLE, true);
 259                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 260                         material.MaterialType
 261                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 262                         material.setTexture(0, ap.atlas);
 263
 264                         video::SColor c(255,255,255,255);
 265
 266                         // Wall at X+ of node
 267                         video::S3DVertex vertices[4] =
 268                         {
 269                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 270                                                 ap.x0(), ap.y1()),
 271                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 272                                                 ap.x1(), ap.y1()),
 273                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 274                                                 ap.x1(), ap.y0()),
 275                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 276                                                 ap.x0(), ap.y0()),
 277                         };
 278
 279                         for(s32 i=0; i<4; i++)
 280                         {
 281                                 if(dir == v3s16(1,0,0))
 282                                         vertices[i].Pos.rotateXZBy(0);
 283                                 if(dir == v3s16(-1,0,0))
 284                                         vertices[i].Pos.rotateXZBy(180);
 285                                 if(dir == v3s16(0,0,1))
 286                                         vertices[i].Pos.rotateXZBy(90);
 287                                 if(dir == v3s16(0,0,-1))
 288                                         vertices[i].Pos.rotateXZBy(-90);
 289                                 if(dir == v3s16(0,-1,0))
 290                                         vertices[i].Pos.rotateXZBy(45);
 291                                 if(dir == v3s16(0,1,0))
 292                                         vertices[i].Pos.rotateXZBy(-45);
 293
 294                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 295                         }
 296
 297                         u16 indices[] = {0,1,2,2,3,0};
 298                         // Add to mesh collector
 299                         collector.append(material, vertices, 4, indices, 6);
 300                 }
 301                 /*
 302                         Signs on walls
 303                 */
 304                 else if(n.getContent() == CONTENT_SIGN_WALL)
 305                 {
 306                         AtlasPointer ap = g_texturesource->getTexture("sign_wall.png");
 307
 308                         // Set material
 309                         video::SMaterial material;
 310                         material.setFlag(video::EMF_LIGHTING, false);
 311                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 312                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 313                         material.setFlag(video::EMF_FOG_ENABLE, true);
 314                         material.MaterialType
 315                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 316                         material.setTexture(0, ap.atlas);
 317
 318                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 319                         video::SColor c = MapBlock_LightColor(255, l);
 320
 321                         float d = (float)BS/16;
 322                         // Wall at X+ of node
 323                         video::S3DVertex vertices[4] =
 324                         {
 325                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
 326                                                 ap.x0(), ap.y1()),
 327                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
 328                                                 ap.x1(), ap.y1()),
 329                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
 330                                                 ap.x1(), ap.y0()),
 331                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
 332                                                 ap.x0(), ap.y0()),
 333                         };
 334
 335                         v3s16 dir = unpackDir(n.param2);
 336
 337                         for(s32 i=0; i<4; i++)
 338                         {
 339                                 if(dir == v3s16(1,0,0))
 340                                         vertices[i].Pos.rotateXZBy(0);
 341                                 if(dir == v3s16(-1,0,0))
 342                                         vertices[i].Pos.rotateXZBy(180);
 343                                 if(dir == v3s16(0,0,1))
 344                                         vertices[i].Pos.rotateXZBy(90);
 345                                 if(dir == v3s16(0,0,-1))
 346                                         vertices[i].Pos.rotateXZBy(-90);
 347                                 if(dir == v3s16(0,-1,0))
 348                                         vertices[i].Pos.rotateXYBy(-90);
 349                                 if(dir == v3s16(0,1,0))
 350                                         vertices[i].Pos.rotateXYBy(90);
 351
 352                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 353                         }
 354
 355                         u16 indices[] = {0,1,2,2,3,0};
 356                         // Add to mesh collector
 357                         collector.append(material, vertices, 4, indices, 6);
 358                 }
 359                 /*
 360                         Add flowing liquid to mesh
 361                 */
 362                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 363                 {
 364                         assert(content_features(n).special_material);
 365                         video::SMaterial &liquid_material =
 366                                         *content_features(n).special_material;
 367                         video::SMaterial &liquid_material_bfculled =
 368                                         *content_features(n).special_material2;
 369
 370                         assert(content_features(n).special_atlas);
 371                         AtlasPointer &pa_liquid1 =
 372                                         *content_features(n).special_atlas;
 373
 374                         bool top_is_same_liquid = false;
 375                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 376                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 377                         content_t c_source = content_features(n).liquid_alternative_source;
 378                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 379                                 top_is_same_liquid = true;
 380
 381                         u8 l = 0;
 382                         // Use the light of the node on top if possible
 383                         if(content_features(ntop).param_type == CPT_LIGHT)
 384                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 385                         // Otherwise use the light of this node (the liquid)
 386                         else
 387                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 388                         video::SColor c = MapBlock_LightColor(
 389                                         content_features(n).vertex_alpha, l);
 390
 391                         // Neighbor liquid levels (key = relative position)
 392                         // Includes current node
 393                         core::map<v3s16, f32> neighbor_levels;
 394                         core::map<v3s16, content_t> neighbor_contents;
 395                         core::map<v3s16, u8> neighbor_flags;
 396                         const u8 neighborflag_top_is_same_liquid = 0x01;
 397                         v3s16 neighbor_dirs[9] = {
 398                                 v3s16(0,0,0),
 399                                 v3s16(0,0,1),
 400                                 v3s16(0,0,-1),
 401                                 v3s16(1,0,0),
 402                                 v3s16(-1,0,0),
 403                                 v3s16(1,0,1),
 404                                 v3s16(-1,0,-1),
 405                                 v3s16(1,0,-1),
 406                                 v3s16(-1,0,1),
 407                         };
 408                         for(u32 i=0; i<9; i++)
 409                         {
 410                                 content_t content = CONTENT_AIR;
 411                                 float level = -0.5 * BS;
 412                                 u8 flags = 0;
 413                                 // Check neighbor
 414                                 v3s16 p2 = p + neighbor_dirs[i];
 415                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 416                                 if(n2.getContent() != CONTENT_IGNORE)
 417                                 {
 418                                         content = n2.getContent();
 419
 420                                         if(n2.getContent() == c_source)
 421                                                 level = (-0.5+node_liquid_level) * BS;
 422                                         else if(n2.getContent() == c_flowing)
 423                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 424                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 425
 426                                         // Check node above neighbor.
 427                                         // NOTE: This doesn't get executed if neighbor
 428                                         //       doesn't exist
 429                                         p2.Y += 1;
 430                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 431                                         if(n2.getContent() == c_source ||
 432                                                         n2.getContent() == c_flowing)
 433                                                 flags |= neighborflag_top_is_same_liquid;
 434                                 }
 435
 436                                 neighbor_levels.insert(neighbor_dirs[i], level);
 437                                 neighbor_contents.insert(neighbor_dirs[i], content);
 438                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 439                         }
 440
 441                         // Corner heights (average between four liquids)
 442                         f32 corner_levels[4];
 443
 444                         v3s16 halfdirs[4] = {
 445                                 v3s16(0,0,0),
 446                                 v3s16(1,0,0),
 447                                 v3s16(1,0,1),
 448                                 v3s16(0,0,1),
 449                         };
 450                         for(u32 i=0; i<4; i++)
 451                         {
 452                                 v3s16 cornerdir = halfdirs[i];
 453                                 float cornerlevel = 0;
 454                                 u32 valid_count = 0;
 455                                 u32 air_count = 0;
 456                                 for(u32 j=0; j<4; j++)
 457                                 {
 458                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 459                                         content_t content = neighbor_contents[neighbordir];
 460                                         // If top is liquid, draw starting from top of node
 461                                         if(neighbor_flags[neighbordir] &
 462                                                         neighborflag_top_is_same_liquid)
 463                                         {
 464                                                 cornerlevel = 0.5*BS;
 465                                                 valid_count = 1;
 466                                                 break;
 467                                         }
 468                                         // Source is always the same height
 469                                         else if(content == c_source)
 470                                         {
 471                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 472                                                 valid_count = 1;
 473                                                 break;
 474                                         }
 475                                         // Flowing liquid has level information
 476                                         else if(content == c_flowing)
 477                                         {
 478                                                 cornerlevel += neighbor_levels[neighbordir];
 479                                                 valid_count++;
 480                                         }
 481                                         else if(content == CONTENT_AIR)
 482                                         {
 483                                                 air_count++;
 484                                         }
 485                                 }
 486                                 if(air_count >= 2)
 487                                         cornerlevel = -0.5*BS;
 488                                 else if(valid_count > 0)
 489                                         cornerlevel /= valid_count;
 490                                 corner_levels[i] = cornerlevel;
 491                         }
 492
 493                         /*
 494                                 Generate sides
 495                         */
 496
 497                         v3s16 side_dirs[4] = {
 498                                 v3s16(1,0,0),
 499                                 v3s16(-1,0,0),
 500                                 v3s16(0,0,1),
 501                                 v3s16(0,0,-1),
 502                         };
 503                         s16 side_corners[4][2] = {
 504                                 {1, 2},
 505                                 {3, 0},
 506                                 {2, 3},
 507                                 {0, 1},
 508                         };
 509                         for(u32 i=0; i<4; i++)
 510                         {
 511                                 v3s16 dir = side_dirs[i];
 512
 513                                 /*
 514                                         If our topside is liquid and neighbor's topside
 515                                         is liquid, don't draw side face
 516                                 */
 517                                 if(top_is_same_liquid &&
 518                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 519                                         continue;
 520
 521                                 content_t neighbor_content = neighbor_contents[dir];
 522                                 ContentFeatures &n_feat = content_features(neighbor_content);
 523
 524                                 // Don't draw face if neighbor is blocking the view
 525                                 if(n_feat.solidness == 2)
 526                                         continue;
 527
 528                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 529                                                 || neighbor_content == c_flowing);
 530
 531                                 // Don't draw any faces if neighbor same is liquid and top is
 532                                 // same liquid
 533                                 if(neighbor_is_same_liquid == true
 534                                                 && top_is_same_liquid == false)
 535                                         continue;
 536
 537                                 // Use backface culled material if neighbor doesn't have a
 538                                 // solidness of 0
 539                                 video::SMaterial *current_material = &liquid_material;
 540                                 if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
 541                                         current_material = &liquid_material_bfculled;
 542
 543                                 video::S3DVertex vertices[4] =
 544                                 {
 545                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 546                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 547                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 548                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 549                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 550                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 551                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 552                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 553                                 };
 554
 555                                 /*
 556                                         If our topside is liquid, set upper border of face
 557                                         at upper border of node
 558                                 */
 559                                 if(top_is_same_liquid)
 560                                 {
 561                                         vertices[2].Pos.Y = 0.5*BS;
 562                                         vertices[3].Pos.Y = 0.5*BS;
 563                                 }
 564                                 /*
 565                                         Otherwise upper position of face is corner levels
 566                                 */
 567                                 else
 568                                 {
 569                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 570                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 571                                 }
 572
 573                                 /*
 574                                         If neighbor is liquid, lower border of face is corner
 575                                         liquid levels
 576                                 */
 577                                 if(neighbor_is_same_liquid)
 578                                 {
 579                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 580                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 581                                 }
 582                                 /*
 583                                         If neighbor is not liquid, lower border of face is
 584                                         lower border of node
 585                                 */
 586                                 else
 587                                 {
 588                                         vertices[0].Pos.Y = -0.5*BS;
 589                                         vertices[1].Pos.Y = -0.5*BS;
 590                                 }
 591
 592                                 for(s32 j=0; j<4; j++)
 593                                 {
 594                                         if(dir == v3s16(0,0,1))
 595                                                 vertices[j].Pos.rotateXZBy(0);
 596                                         if(dir == v3s16(0,0,-1))
 597                                                 vertices[j].Pos.rotateXZBy(180);
 598                                         if(dir == v3s16(-1,0,0))
 599                                                 vertices[j].Pos.rotateXZBy(90);
 600                                         if(dir == v3s16(1,0,-0))
 601                                                 vertices[j].Pos.rotateXZBy(-90);
 602
 603                                         // Do this to not cause glitches when two liquids are
 604                                         // side-by-side
 605                                         /*if(neighbor_is_same_liquid == false){
 606                                                 vertices[j].Pos.X *= 0.98;
 607                                                 vertices[j].Pos.Z *= 0.98;
 608                                         }*/
 609
 610                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 611                                 }
 612
 613                                 u16 indices[] = {0,1,2,2,3,0};
 614                                 // Add to mesh collector
 615                                 collector.append(*current_material, vertices, 4, indices, 6);
 616                         }
 617
 618                         /*
 619                                 Generate top side, if appropriate
 620                         */
 621
 622                         if(top_is_same_liquid == false)
 623                         {
 624                                 video::S3DVertex vertices[4] =
 625                                 {
 626                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 627                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 628                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 629                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 630                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 631                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 632                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 633                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 634                                 };
 635
 636                                 // This fixes a strange bug
 637                                 s32 corner_resolve[4] = {3,2,1,0};
 638
 639                                 for(s32 i=0; i<4; i++)
 640                                 {
 641                                         //vertices[i].Pos.Y += liquid_level;
 642                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 643                                         s32 j = corner_resolve[i];
 644                                         vertices[i].Pos.Y += corner_levels[j];
 645                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 646                                 }
 647
 648                                 u16 indices[] = {0,1,2,2,3,0};
 649                                 // Add to mesh collector
 650                                 collector.append(liquid_material, vertices, 4, indices, 6);
 651                         }
 652                 }
 653                 /*
 654                         Add water sources to mesh if using new style
 655                 */
 656                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 657                                 && new_style_water)
 658                 {
 659                         assert(content_features(n).special_material);
 660                         video::SMaterial &liquid_material =
 661                                         *content_features(n).special_material;
 662                         assert(content_features(n).special_atlas);
 663                         AtlasPointer &pa_liquid1 =
 664                                         *content_features(n).special_atlas;
 665
 666                         bool top_is_air = false;
 667                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 668                         if(n.getContent() == CONTENT_AIR)
 669                                 top_is_air = true;
 670
 671                         if(top_is_air == false)
 672                                 continue;
 673
 674                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 675                         video::SColor c = MapBlock_LightColor(
 676                                         content_features(n).vertex_alpha, l);
 677
 678                         video::S3DVertex vertices[4] =
 679                         {
 680                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 681                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 682                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 683                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 684                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 685                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 686                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 687                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 688                         };
 689
 690                         for(s32 i=0; i<4; i++)
 691                         {
 692                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 693                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 694                         }
 695
 696                         u16 indices[] = {0,1,2,2,3,0};
 697                         // Add to mesh collector
 698                         collector.append(liquid_material, vertices, 4, indices, 6);
 699                 }
 700                 /*
 701                         Add leaves if using new style
 702                 */
 703                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 704                 {
 705                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 706                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 707                         video::SColor c = MapBlock_LightColor(255, l);
 708
 709                         for(u32 j=0; j<6; j++)
 710                         {
 711                                 video::S3DVertex vertices[4] =
 712                                 {
 713                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 714                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 715                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 716                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 717                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 718                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 719                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 720                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 721                                 };
 722
 723                                 if(j == 0)
 724                                 {
 725                                         for(u16 i=0; i<4; i++)
 726                                                 vertices[i].Pos.rotateXZBy(0);
 727                                 }
 728                                 else if(j == 1)
 729                                 {
 730                                         for(u16 i=0; i<4; i++)
 731                                                 vertices[i].Pos.rotateXZBy(180);
 732                                 }
 733                                 else if(j == 2)
 734                                 {
 735                                         for(u16 i=0; i<4; i++)
 736                                                 vertices[i].Pos.rotateXZBy(-90);
 737                                 }
 738                                 else if(j == 3)
 739                                 {
 740                                         for(u16 i=0; i<4; i++)
 741                                                 vertices[i].Pos.rotateXZBy(90);
 742                                 }
 743                                 else if(j == 4)
 744                                 {
 745                                         for(u16 i=0; i<4; i++)
 746                                                 vertices[i].Pos.rotateYZBy(-90);
 747                                 }
 748                                 else if(j == 5)
 749                                 {
 750                                         for(u16 i=0; i<4; i++)
 751                                                 vertices[i].Pos.rotateYZBy(90);
 752                                 }
 753
 754                                 for(u16 i=0; i<4; i++)
 755                                 {
 756                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 757                                 }
 758
 759                                 u16 indices[] = {0,1,2,2,3,0};
 760                                 // Add to mesh collector
 761                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 762                         }
 763                 }
 764                 /*
 765                         Add glass
 766                 */
 767                 else if(n.getContent() == CONTENT_GLASS)
 768                 {
 769                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 770                         video::SColor c = MapBlock_LightColor(255, l);
 771
 772                         for(u32 j=0; j<6; j++)
 773                         {
 774                                 video::S3DVertex vertices[4] =
 775                                 {
 776                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 777                                                 pa_glass.x0(), pa_glass.y1()),
 778                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 779                                                 pa_glass.x1(), pa_glass.y1()),
 780                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 781                                                 pa_glass.x1(), pa_glass.y0()),
 782                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 783                                                 pa_glass.x0(), pa_glass.y0()),
 784                                 };
 785
 786                                 if(j == 0)
 787                                 {
 788                                         for(u16 i=0; i<4; i++)
 789                                                 vertices[i].Pos.rotateXZBy(0);
 790                                 }
 791                                 else if(j == 1)
 792                                 {
 793                                         for(u16 i=0; i<4; i++)
 794                                                 vertices[i].Pos.rotateXZBy(180);
 795                                 }
 796                                 else if(j == 2)
 797                                 {
 798                                         for(u16 i=0; i<4; i++)
 799                                                 vertices[i].Pos.rotateXZBy(-90);
 800                                 }
 801                                 else if(j == 3)
 802                                 {
 803                                         for(u16 i=0; i<4; i++)
 804                                                 vertices[i].Pos.rotateXZBy(90);
 805                                 }
 806                                 else if(j == 4)
 807                                 {
 808                                         for(u16 i=0; i<4; i++)
 809                                                 vertices[i].Pos.rotateYZBy(-90);
 810                                 }
 811                                 else if(j == 5)
 812                                 {
 813                                         for(u16 i=0; i<4; i++)
 814                                                 vertices[i].Pos.rotateYZBy(90);
 815                                 }
 816
 817                                 for(u16 i=0; i<4; i++)
 818                                 {
 819                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 820                                 }
 821
 822                                 u16 indices[] = {0,1,2,2,3,0};
 823                                 // Add to mesh collector
 824                                 collector.append(material_glass, vertices, 4, indices, 6);
 825                         }
 826                 }
 827                 /*
 828                         Add fence
 829                 */
 830                 else if(n.getContent() == CONTENT_FENCE)
 831                 {
 832                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 833                         video::SColor c = MapBlock_LightColor(255, l);
 834
 835                         const f32 post_rad=(f32)BS/10;
 836                         const f32 bar_rad=(f32)BS/20;
 837                         const f32 bar_len=(f32)(BS/2)-post_rad;
 838
 839                         // The post - always present
 840                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 841                         f32 postuv[24]={
 842                                         0.4,0.4,0.6,0.6,
 843                                         0.35,0,0.65,1,
 844                                         0.35,0,0.65,1,
 845                                         0.35,0,0.65,1,
 846                                         0.35,0,0.65,1,
 847                                         0.4,0.4,0.6,0.6};
 848                         makeCuboid(material_wood, &collector,
 849                                 &pa_wood, c, pos,
 850                                 post_rad,BS/2,post_rad, postuv);
 851
 852                         // Now a section of fence, +X, if there's a post there
 853                         v3s16 p2 = p;
 854                         p2.X++;
 855                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 856                         if(n2.getContent() == CONTENT_FENCE)
 857                         {
 858                                 pos = intToFloat(p+blockpos_nodes, BS);
 859                                 pos.X += BS/2;
 860                                 pos.Y += BS/4;
 861                                 f32 xrailuv[24]={
 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                                         0,0.4,1,0.6};
 868                                 makeCuboid(material_wood, &collector,
 869                                         &pa_wood, c, pos,
 870                                         bar_len,bar_rad,bar_rad, xrailuv);
 871
 872                                 pos.Y -= BS/2;
 873                                 makeCuboid(material_wood, &collector,
 874                                         &pa_wood, c, pos,
 875                                         bar_len,bar_rad,bar_rad, xrailuv);
 876                         }
 877
 878                         // Now a section of fence, +Z, if there's a post there
 879                         p2 = p;
 880                         p2.Z++;
 881                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 882                         if(n2.getContent() == CONTENT_FENCE)
 883                         {
 884                                 pos = intToFloat(p+blockpos_nodes, BS);
 885                                 pos.Z += BS/2;
 886                                 pos.Y += BS/4;
 887                                 f32 zrailuv[24]={
 888                                         0,0.4,1,0.6,
 889                                         0,0.4,1,0.6,
 890                                         0,0.4,1,0.6,
 891                                         0,0.4,1,0.6,
 892                                         0,0.4,1,0.6,
 893                                         0,0.4,1,0.6};
 894                                 makeCuboid(material_wood, &collector,
 895                                         &pa_wood, c, pos,
 896                                         bar_rad,bar_rad,bar_len, zrailuv);
 897                                 pos.Y -= BS/2;
 898                                 makeCuboid(material_wood, &collector,
 899                                         &pa_wood, c, pos,
 900                                         bar_rad,bar_rad,bar_len, zrailuv);
 901
 902                         }
 903
 904                 }
 905 #if 1
 906                 /*
 907                         Add stones with minerals if stone is invisible
 908                 */
 909                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 910                 {
 911                         for(u32 j=0; j<6; j++)
 912                         {
 913                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 914                                 v3s16 dir = g_6dirs[j];
 915                                 /*u8 l = 0;
 916                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 917                                 if(content_features(n2).param_type == CPT_LIGHT)
 918                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 919                                 else
 920                                         l = 255;*/
 921                                 u8 l = 255;
 922                                 video::SColor c = MapBlock_LightColor(255, l);
 923
 924                                 // Get the right texture
 925                                 TileSpec ts = n.getTile(dir);
 926                                 AtlasPointer ap = ts.texture;
 927                                 material_general.setTexture(0, ap.atlas);
 928
 929                                 video::S3DVertex vertices[4] =
 930                                 {
 931                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 932                                                 ap.x0(), ap.y1()),
 933                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 934                                                 ap.x1(), ap.y1()),
 935                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 936                                                 ap.x1(), ap.y0()),
 937                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 938                                                 ap.x0(), ap.y0()),
 939                                 };
 940
 941                                 if(j == 0)
 942                                 {
 943                                         for(u16 i=0; i<4; i++)
 944                                                 vertices[i].Pos.rotateXZBy(0);
 945                                 }
 946                                 else if(j == 1)
 947                                 {
 948                                         for(u16 i=0; i<4; i++)
 949                                                 vertices[i].Pos.rotateXZBy(180);
 950                                 }
 951                                 else if(j == 2)
 952                                 {
 953                                         for(u16 i=0; i<4; i++)
 954                                                 vertices[i].Pos.rotateXZBy(-90);
 955                                 }
 956                                 else if(j == 3)
 957                                 {
 958                                         for(u16 i=0; i<4; i++)
 959                                                 vertices[i].Pos.rotateXZBy(90);
 960                                 }
 961                                 else if(j == 4)
 962
 963                                 for(u16 i=0; i<4; i++)
 964                                 {
 965                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 966                                 }
 967
 968                                 u16 indices[] = {0,1,2,2,3,0};
 969                                 // Add to mesh collector
 970                                 collector.append(material_general, vertices, 4, indices, 6);
 971                         }
 972                 }
 973 #endif
 974                 else if(n.getContent() == CONTENT_PAPYRUS)
 975                 {
 976                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 977                         video::SColor c = MapBlock_LightColor(255, l);
 978
 979                         for(u32 j=0; j<4; j++)
 980                         {
 981                                 video::S3DVertex vertices[4] =
 982                                 {
 983                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 984                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 985                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 986                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 987                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 988                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 989                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 990                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 991                                 };
 992
 993                                 if(j == 0)
 994                                 {
 995                                         for(u16 i=0; i<4; i++)
 996                                                 vertices[i].Pos.rotateXZBy(45);
 997                                 }
 998                                 else if(j == 1)
 999                                 {
1000                                         for(u16 i=0; i<4; i++)
1001                                                 vertices[i].Pos.rotateXZBy(-45);
1002                                 }
1003                                 else if(j == 2)
1004                                 {
1005                                         for(u16 i=0; i<4; i++)
1006                                                 vertices[i].Pos.rotateXZBy(135);
1007                                 }
1008                                 else if(j == 3)
1009                                 {
1010                                         for(u16 i=0; i<4; i++)
1011                                                 vertices[i].Pos.rotateXZBy(-135);
1012                                 }
1013
1014                                 for(u16 i=0; i<4; i++)
1015                                 {
1016                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1017                                 }
1018
1019                                 u16 indices[] = {0,1,2,2,3,0};
1020                                 // Add to mesh collector
1021                                 collector.append(material_papyrus, vertices, 4, indices, 6);
1022                         }
1023                 }
1024                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
1025                 {
1026                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1027                         video::SColor c = MapBlock_LightColor(255, l);
1028
1029                         for(u32 j=0; j<4; j++)
1030                         {
1031                                 video::S3DVertex vertices[4] =
1032                                 {
1033                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1034                                                 pa_junglegrass.x0(), pa_junglegrass.y1()),
1035                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1036                                                 pa_junglegrass.x1(), pa_junglegrass.y1()),
1037                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1038                                                 pa_junglegrass.x1(), pa_junglegrass.y0()),
1039                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1040                                                 pa_junglegrass.x0(), pa_junglegrass.y0()),
1041                                 };
1042
1043                                 if(j == 0)
1044                                 {
1045                                         for(u16 i=0; i<4; i++)
1046                                                 vertices[i].Pos.rotateXZBy(45);
1047                                 }
1048                                 else if(j == 1)
1049                                 {
1050                                         for(u16 i=0; i<4; i++)
1051                                                 vertices[i].Pos.rotateXZBy(-45);
1052                                 }
1053                                 else if(j == 2)
1054                                 {
1055                                         for(u16 i=0; i<4; i++)
1056                                                 vertices[i].Pos.rotateXZBy(135);
1057                                 }
1058                                 else if(j == 3)
1059                                 {
1060                                         for(u16 i=0; i<4; i++)
1061                                                 vertices[i].Pos.rotateXZBy(-135);
1062                                 }
1063
1064                                 for(u16 i=0; i<4; i++)
1065                                 {
1066                                         vertices[i].Pos *= 1.3;
1067                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1068                                 }
1069
1070                                 u16 indices[] = {0,1,2,2,3,0};
1071                                 // Add to mesh collector
1072                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1073                         }
1074                 }
1075                 else if(n.getContent() == CONTENT_RAIL)
1076                 {
1077                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1078                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1079
1080                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1081                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1082                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1083                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1084
1085                         if(n_minus_x.getContent() == CONTENT_RAIL)
1086                                 is_rail_x[0] = true;
1087                         if(n_plus_x.getContent() == CONTENT_RAIL)
1088                                 is_rail_x[1] = true;
1089                         if(n_minus_z.getContent() == CONTENT_RAIL)
1090                                 is_rail_z[0] = true;
1091                         if(n_plus_z.getContent() == CONTENT_RAIL)
1092                                 is_rail_z[1] = true;
1093
1094                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1095
1096                         // Assign textures
1097                         const char *texturename = "rail.png";
1098                         if(adjacencies < 2)
1099                                 texturename = "rail.png";
1100                         else if(adjacencies == 2)
1101                         {
1102                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1103                                         texturename = "rail.png";
1104                                 else
1105                                         texturename = "rail_curved.png";
1106                         }
1107                         else if(adjacencies == 3)
1108                                 texturename = "rail_t_junction.png";
1109                         else if(adjacencies == 4)
1110                                 texturename = "rail_crossing.png";
1111
1112                         AtlasPointer ap = g_texturesource->getTexture(texturename);
1113
1114                         video::SMaterial material_rail;
1115                         material_rail.setFlag(video::EMF_LIGHTING, false);
1116                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
1117                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1118                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1119                         material_rail.MaterialType
1120                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1121                         material_rail.setTexture(0, ap.atlas);
1122
1123                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1124                         video::SColor c = MapBlock_LightColor(255, l);
1125
1126                         float d = (float)BS/16;
1127                         video::S3DVertex vertices[4] =
1128                         {
1129                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1130                                                 ap.x0(), ap.y1()),
1131                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1132                                                 ap.x1(), ap.y1()),
1133                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1134                                                 ap.x1(), ap.y0()),
1135                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1136                                                 ap.x0(), ap.y0()),
1137                         };
1138
1139                         // Rotate textures
1140                         int angle = 0;
1141
1142                         if(adjacencies == 1)
1143                         {
1144                                 if(is_rail_x[0] || is_rail_x[1])
1145                                         angle = 90;
1146                         }
1147                         else if(adjacencies == 2)
1148                         {
1149                                 if(is_rail_x[0] && is_rail_x[1])
1150                                         angle = 90;
1151                                 else if(is_rail_x[0] && is_rail_z[0])
1152                                         angle = 270;
1153                                 else if(is_rail_x[0] && is_rail_z[1])
1154                                         angle = 180;
1155                                 else if(is_rail_x[1] && is_rail_z[1])
1156                                         angle = 90;
1157                         }
1158                         else if(adjacencies == 3)
1159                         {
1160                                 if(!is_rail_x[0])
1161                                         angle=0;
1162                                 if(!is_rail_x[1])
1163                                         angle=180;
1164                                 if(!is_rail_z[0])
1165                                         angle=90;
1166                                 if(!is_rail_z[1])
1167                                         angle=270;
1168                         }
1169
1170                         if(angle != 0) {
1171                                 for(u16 i=0; i<4; i++)
1172                                         vertices[i].Pos.rotateXZBy(angle);
1173                         }
1174
1175                         for(s32 i=0; i<4; i++)
1176                         {
1177                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1178                         }
1179
1180                         u16 indices[] = {0,1,2,2,3,0};
1181                         collector.append(material_rail, vertices, 4, indices, 6);
1182                 }
1183                 else if (n.getContent() == CONTENT_LADDER) {
1184                         AtlasPointer ap = g_texturesource->getTexture("ladder.png");
1185
1186                         // Set material
1187                         video::SMaterial material_ladder;
1188                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1189                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, false);
1190                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1191                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1192                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1193                         material_ladder.setTexture(0, ap.atlas);
1194
1195                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1196                         video::SColor c(255,l,l,l);
1197
1198                         float d = (float)BS/16;
1199
1200                         // Assume wall is at X+
1201                         video::S3DVertex vertices[4] =
1202                         {
1203                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
1204                                                 ap.x0(), ap.y1()),
1205                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
1206                                                 ap.x1(), ap.y1()),
1207                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
1208                                                 ap.x1(), ap.y0()),
1209                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
1210                                                 ap.x0(), ap.y0()),
1211                         };
1212
1213                         v3s16 dir = unpackDir(n.param2);
1214
1215                         for(s32 i=0; i<4; i++)
1216                         {
1217                                 if(dir == v3s16(1,0,0))
1218                                         vertices[i].Pos.rotateXZBy(0);
1219                                 if(dir == v3s16(-1,0,0))
1220                                         vertices[i].Pos.rotateXZBy(180);
1221                                 if(dir == v3s16(0,0,1))
1222                                         vertices[i].Pos.rotateXZBy(90);
1223                                 if(dir == v3s16(0,0,-1))
1224                                         vertices[i].Pos.rotateXZBy(-90);
1225                                 if(dir == v3s16(0,-1,0))
1226                                         vertices[i].Pos.rotateXYBy(-90);
1227                                 if(dir == v3s16(0,1,0))
1228                                         vertices[i].Pos.rotateXYBy(90);
1229
1230                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1231                         }
1232
1233                         u16 indices[] = {0,1,2,2,3,0};
1234                         // Add to mesh collector
1235                         collector.append(material_ladder, vertices, 4, indices, 6);
1236                 }
1237                 else if(n.getContent() == CONTENT_APPLE)
1238                 {
1239                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1240                         video::SColor c = MapBlock_LightColor(255, l);
1241
1242                         for(u32 j=0; j<4; j++)
1243                         {
1244                                 video::S3DVertex vertices[4] =
1245                                 {
1246                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1247                                                 pa_apple.x0(), pa_apple.y1()),
1248                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1249                                                 pa_apple.x1(), pa_apple.y1()),
1250                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
1251                                                 pa_apple.x1(), pa_apple.y0()),
1252                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
1253                                                 pa_apple.x0(), pa_apple.y0()),
1254                                 };
1255
1256                                 if(j == 0)
1257                                 {
1258                                         for(u16 i=0; i<4; i++)
1259                                                 vertices[i].Pos.rotateXZBy(45);
1260                                 }
1261                                 else if(j == 1)
1262                                 {
1263                                         for(u16 i=0; i<4; i++)
1264                                                 vertices[i].Pos.rotateXZBy(-45);
1265                                 }
1266                                 else if(j == 2)
1267                                 {
1268                                         for(u16 i=0; i<4; i++)
1269                                                 vertices[i].Pos.rotateXZBy(135);
1270                                 }
1271                                 else if(j == 3)
1272                                 {
1273                                         for(u16 i=0; i<4; i++)
1274                                                 vertices[i].Pos.rotateXZBy(-135);
1275                                 }
1276
1277                                 for(u16 i=0; i<4; i++)
1278                                 {
1279                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1280                                 }
1281
1282                                 u16 indices[] = {0,1,2,2,3,0};
1283                                 // Add to mesh collector
1284                                 collector.append(material_apple, vertices, 4, indices, 6);
1285                         }
1286                 }
1287                 else if(n.getContent() == CONTENT_SAPLING) {
1288                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1289                         video::SColor c = MapBlock_LightColor(255, l);
1290
1291                         for(u32 j=0; j<4; j++)
1292                         {
1293                                 video::S3DVertex vertices[4] =
1294                                 {
1295                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1296                                                 pa_sapling.x0(), pa_sapling.y1()),
1297                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1298                                                 pa_sapling.x1(), pa_sapling.y1()),
1299                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1300                                                 pa_sapling.x1(), pa_sapling.y0()),
1301                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1302                                                 pa_sapling.x0(), pa_sapling.y0()),
1303                                 };
1304
1305                                 if(j == 0)
1306                                 {
1307                                         for(u16 i=0; i<4; i++)
1308                                                 vertices[i].Pos.rotateXZBy(45);
1309                                 }
1310                                 else if(j == 1)
1311                                 {
1312                                         for(u16 i=0; i<4; i++)
1313                                                 vertices[i].Pos.rotateXZBy(-45);
1314                                 }
1315                                 else if(j == 2)
1316                                 {
1317                                         for(u16 i=0; i<4; i++)
1318                                                 vertices[i].Pos.rotateXZBy(135);
1319                                 }
1320                                 else if(j == 3)
1321                                 {
1322                                         for(u16 i=0; i<4; i++)
1323                                                 vertices[i].Pos.rotateXZBy(-135);
1324                                 }
1325
1326                                 for(u16 i=0; i<4; i++)
1327                                 {
1328                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1329                                 }
1330
1331                                 u16 indices[] = {0,1,2,2,3,0};
1332                                 // Add to mesh collector
1333                                 collector.append(material_sapling, vertices, 4, indices, 6);
1334                         }
1335                 }
1336         }
1337 }
1338 #endif
1339