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         // junglegrass material
 203         video::SMaterial material_junglegrass;
 204         material_junglegrass.setFlag(video::EMF_LIGHTING, false);
 205         material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
 206         material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
 207         material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 208         AtlasPointer pa_junglegrass = g_texturesource->getTexture(
 209                         g_texturesource->getTextureId("junglegrass.png"));
 210         material_junglegrass.setTexture(0, pa_junglegrass.atlas);
 211
 212         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 213         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 214         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 215         {
 216                 v3s16 p(x,y,z);
 217
 218                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 219
 220                 /*
 221                         Add torches to mesh
 222                 */
 223                 if(n.getContent() == CONTENT_TORCH)
 224                 {
 225                         video::SColor c(255,255,255,255);
 226
 227                         // Wall at X+ of node
 228                         video::S3DVertex vertices[4] =
 229                         {
 230                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 0,1),
 231                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 1,1),
 232                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 1,0),
 233                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 0,0),
 234                         };
 235
 236                         v3s16 dir = unpackDir(n.param2);
 237
 238                         for(s32 i=0; i<4; i++)
 239                         {
 240                                 if(dir == v3s16(1,0,0))
 241                                         vertices[i].Pos.rotateXZBy(0);
 242                                 if(dir == v3s16(-1,0,0))
 243                                         vertices[i].Pos.rotateXZBy(180);
 244                                 if(dir == v3s16(0,0,1))
 245                                         vertices[i].Pos.rotateXZBy(90);
 246                                 if(dir == v3s16(0,0,-1))
 247                                         vertices[i].Pos.rotateXZBy(-90);
 248                                 if(dir == v3s16(0,-1,0))
 249                                         vertices[i].Pos.rotateXZBy(45);
 250                                 if(dir == v3s16(0,1,0))
 251                                         vertices[i].Pos.rotateXZBy(-45);
 252
 253                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 254                         }
 255
 256                         // Set material
 257                         video::SMaterial material;
 258                         material.setFlag(video::EMF_LIGHTING, false);
 259                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 260                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 261                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 262                         material.MaterialType
 263                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 264
 265                         if(dir == v3s16(0,-1,0))
 266                                 material.setTexture(0,
 267                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 268                         else if(dir == v3s16(0,1,0))
 269                                 material.setTexture(0,
 270                                                 g_texturesource->getTextureRaw("torch_on_ceiling.png"));
 271                         // For backwards compatibility
 272                         else if(dir == v3s16(0,0,0))
 273                                 material.setTexture(0,
 274                                                 g_texturesource->getTextureRaw("torch_on_floor.png"));
 275                         else
 276                                 material.setTexture(0,
 277                                                 g_texturesource->getTextureRaw("torch.png"));
 278
 279                         u16 indices[] = {0,1,2,2,3,0};
 280                         // Add to mesh collector
 281                         collector.append(material, vertices, 4, indices, 6);
 282                 }
 283                 /*
 284                         Signs on walls
 285                 */
 286                 else if(n.getContent() == CONTENT_SIGN_WALL)
 287                 {
 288                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 289                         video::SColor c = MapBlock_LightColor(255, l);
 290
 291                         float d = (float)BS/16;
 292                         // Wall at X+ of node
 293                         video::S3DVertex vertices[4] =
 294                         {
 295                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
 296                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
 297                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
 298                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
 299                         };
 300
 301                         v3s16 dir = unpackDir(n.param2);
 302
 303                         for(s32 i=0; i<4; i++)
 304                         {
 305                                 if(dir == v3s16(1,0,0))
 306                                         vertices[i].Pos.rotateXZBy(0);
 307                                 if(dir == v3s16(-1,0,0))
 308                                         vertices[i].Pos.rotateXZBy(180);
 309                                 if(dir == v3s16(0,0,1))
 310                                         vertices[i].Pos.rotateXZBy(90);
 311                                 if(dir == v3s16(0,0,-1))
 312                                         vertices[i].Pos.rotateXZBy(-90);
 313                                 if(dir == v3s16(0,-1,0))
 314                                         vertices[i].Pos.rotateXYBy(-90);
 315                                 if(dir == v3s16(0,1,0))
 316                                         vertices[i].Pos.rotateXYBy(90);
 317
 318                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 319                         }
 320
 321                         // Set material
 322                         video::SMaterial material;
 323                         material.setFlag(video::EMF_LIGHTING, false);
 324                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 325                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 326                         material.setFlag(video::EMF_FOG_ENABLE, true);
 327                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 328                         material.MaterialType
 329                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 330
 331                         material.setTexture(0,
 332                                         g_texturesource->getTextureRaw("sign_wall.png"));
 333
 334                         u16 indices[] = {0,1,2,2,3,0};
 335                         // Add to mesh collector
 336                         collector.append(material, vertices, 4, indices, 6);
 337                 }
 338                 /*
 339                         Add flowing liquid to mesh
 340                 */
 341                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 342                 {
 343                         assert(content_features(n).special_material);
 344                         video::SMaterial &liquid_material =
 345                                         *content_features(n).special_material;
 346                         assert(content_features(n).special_atlas);
 347                         AtlasPointer &pa_liquid1 =
 348                                         *content_features(n).special_atlas;
 349
 350                         bool top_is_same_liquid = false;
 351                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 352                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 353                         content_t c_source = content_features(n).liquid_alternative_source;
 354                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 355                                 top_is_same_liquid = true;
 356
 357                         u8 l = 0;
 358                         // Use the light of the node on top if possible
 359                         if(content_features(ntop).param_type == CPT_LIGHT)
 360                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 361                         // Otherwise use the light of this node (the liquid)
 362                         else
 363                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 364                         video::SColor c = MapBlock_LightColor(
 365                                         content_features(n).vertex_alpha, l);
 366
 367                         // Neighbor liquid levels (key = relative position)
 368                         // Includes current node
 369                         core::map<v3s16, f32> neighbor_levels;
 370                         core::map<v3s16, content_t> neighbor_contents;
 371                         core::map<v3s16, u8> neighbor_flags;
 372                         const u8 neighborflag_top_is_same_liquid = 0x01;
 373                         v3s16 neighbor_dirs[9] = {
 374                                 v3s16(0,0,0),
 375                                 v3s16(0,0,1),
 376                                 v3s16(0,0,-1),
 377                                 v3s16(1,0,0),
 378                                 v3s16(-1,0,0),
 379                                 v3s16(1,0,1),
 380                                 v3s16(-1,0,-1),
 381                                 v3s16(1,0,-1),
 382                                 v3s16(-1,0,1),
 383                         };
 384                         for(u32 i=0; i<9; i++)
 385                         {
 386                                 content_t content = CONTENT_AIR;
 387                                 float level = -0.5 * BS;
 388                                 u8 flags = 0;
 389                                 // Check neighbor
 390                                 v3s16 p2 = p + neighbor_dirs[i];
 391                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 392                                 if(n2.getContent() != CONTENT_IGNORE)
 393                                 {
 394                                         content = n2.getContent();
 395
 396                                         if(n2.getContent() == c_source)
 397                                                 level = (-0.5+node_liquid_level) * BS;
 398                                         else if(n2.getContent() == c_flowing)
 399                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 400                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 401
 402                                         // Check node above neighbor.
 403                                         // NOTE: This doesn't get executed if neighbor
 404                                         //       doesn't exist
 405                                         p2.Y += 1;
 406                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 407                                         if(n2.getContent() == c_source ||
 408                                                         n2.getContent() == c_flowing)
 409                                                 flags |= neighborflag_top_is_same_liquid;
 410                                 }
 411
 412                                 neighbor_levels.insert(neighbor_dirs[i], level);
 413                                 neighbor_contents.insert(neighbor_dirs[i], content);
 414                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 415                         }
 416
 417                         // Corner heights (average between four liquids)
 418                         f32 corner_levels[4];
 419
 420                         v3s16 halfdirs[4] = {
 421                                 v3s16(0,0,0),
 422                                 v3s16(1,0,0),
 423                                 v3s16(1,0,1),
 424                                 v3s16(0,0,1),
 425                         };
 426                         for(u32 i=0; i<4; i++)
 427                         {
 428                                 v3s16 cornerdir = halfdirs[i];
 429                                 float cornerlevel = 0;
 430                                 u32 valid_count = 0;
 431                                 u32 air_count = 0;
 432                                 for(u32 j=0; j<4; j++)
 433                                 {
 434                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 435                                         content_t content = neighbor_contents[neighbordir];
 436                                         // If top is liquid, draw starting from top of node
 437                                         if(neighbor_flags[neighbordir] &
 438                                                         neighborflag_top_is_same_liquid)
 439                                         {
 440                                                 cornerlevel = 0.5*BS;
 441                                                 valid_count = 1;
 442                                                 break;
 443                                         }
 444                                         // Source is always the same height
 445                                         else if(content == c_source)
 446                                         {
 447                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 448                                                 valid_count = 1;
 449                                                 break;
 450                                         }
 451                                         // Flowing liquid has level information
 452                                         else if(content == c_flowing)
 453                                         {
 454                                                 cornerlevel += neighbor_levels[neighbordir];
 455                                                 valid_count++;
 456                                         }
 457                                         else if(content == CONTENT_AIR)
 458                                         {
 459                                                 air_count++;
 460                                         }
 461                                 }
 462                                 if(air_count >= 2)
 463                                         cornerlevel = -0.5*BS;
 464                                 else if(valid_count > 0)
 465                                         cornerlevel /= valid_count;
 466                                 corner_levels[i] = cornerlevel;
 467                         }
 468
 469                         /*
 470                                 Generate sides
 471                         */
 472
 473                         v3s16 side_dirs[4] = {
 474                                 v3s16(1,0,0),
 475                                 v3s16(-1,0,0),
 476                                 v3s16(0,0,1),
 477                                 v3s16(0,0,-1),
 478                         };
 479                         s16 side_corners[4][2] = {
 480                                 {1, 2},
 481                                 {3, 0},
 482                                 {2, 3},
 483                                 {0, 1},
 484                         };
 485                         for(u32 i=0; i<4; i++)
 486                         {
 487                                 v3s16 dir = side_dirs[i];
 488
 489                                 /*
 490                                         If our topside is liquid and neighbor's topside
 491                                         is liquid, don't draw side face
 492                                 */
 493                                 if(top_is_same_liquid &&
 494                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 495                                         continue;
 496
 497                                 content_t neighbor_content = neighbor_contents[dir];
 498
 499                                 // Don't draw face if neighbor is not air or liquid
 500                                 if(neighbor_content != CONTENT_AIR
 501                                                 && content_liquid(neighbor_content) == false)
 502                                         continue;
 503
 504                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 505                                                 || neighbor_content == c_flowing);
 506
 507                                 // Don't draw any faces if neighbor same is liquid and top is
 508                                 // same liquid
 509                                 if(neighbor_is_same_liquid == true
 510                                                 && top_is_same_liquid == false)
 511                                         continue;
 512
 513                                 video::S3DVertex vertices[4] =
 514                                 {
 515                                         /*video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,1),
 516                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,1),
 517                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 518                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 519                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 520                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 521                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 522                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 523                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 524                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 525                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 526                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 527                                 };
 528
 529                                 /*
 530                                         If our topside is liquid, set upper border of face
 531                                         at upper border of node
 532                                 */
 533                                 if(top_is_same_liquid)
 534                                 {
 535                                         vertices[2].Pos.Y = 0.5*BS;
 536                                         vertices[3].Pos.Y = 0.5*BS;
 537                                 }
 538                                 /*
 539                                         Otherwise upper position of face is corner levels
 540                                 */
 541                                 else
 542                                 {
 543                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 544                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 545                                 }
 546
 547                                 /*
 548                                         If neighbor is liquid, lower border of face is corner
 549                                         liquid levels
 550                                 */
 551                                 if(neighbor_is_same_liquid)
 552                                 {
 553                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 554                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 555                                 }
 556                                 /*
 557                                         If neighbor is not liquid, lower border of face is
 558                                         lower border of node
 559                                 */
 560                                 else
 561                                 {
 562                                         vertices[0].Pos.Y = -0.5*BS;
 563                                         vertices[1].Pos.Y = -0.5*BS;
 564                                 }
 565
 566                                 for(s32 j=0; j<4; j++)
 567                                 {
 568                                         if(dir == v3s16(0,0,1))
 569                                                 vertices[j].Pos.rotateXZBy(0);
 570                                         if(dir == v3s16(0,0,-1))
 571                                                 vertices[j].Pos.rotateXZBy(180);
 572                                         if(dir == v3s16(-1,0,0))
 573                                                 vertices[j].Pos.rotateXZBy(90);
 574                                         if(dir == v3s16(1,0,-0))
 575                                                 vertices[j].Pos.rotateXZBy(-90);
 576
 577                                         // Do this to not cause glitches when two liquids are
 578                                         // side-by-side
 579                                         if(neighbor_is_same_liquid == false){
 580                                                 vertices[j].Pos.X *= 0.98;
 581                                                 vertices[j].Pos.Z *= 0.98;
 582                                         }
 583
 584                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 585                                 }
 586
 587                                 u16 indices[] = {0,1,2,2,3,0};
 588                                 // Add to mesh collector
 589                                 collector.append(liquid_material, vertices, 4, indices, 6);
 590                         }
 591
 592                         /*
 593                                 Generate top side, if appropriate
 594                         */
 595
 596                         if(top_is_same_liquid == false)
 597                         {
 598                                 video::S3DVertex vertices[4] =
 599                                 {
 600                                         /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 601                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 602                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 603                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 604                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 605                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 606                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 607                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 608                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 609                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 610                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 611                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 612                                 };
 613
 614                                 // This fixes a strange bug
 615                                 s32 corner_resolve[4] = {3,2,1,0};
 616
 617                                 for(s32 i=0; i<4; i++)
 618                                 {
 619                                         //vertices[i].Pos.Y += liquid_level;
 620                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 621                                         s32 j = corner_resolve[i];
 622                                         vertices[i].Pos.Y += corner_levels[j];
 623                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 624                                 }
 625
 626                                 u16 indices[] = {0,1,2,2,3,0};
 627                                 // Add to mesh collector
 628                                 collector.append(liquid_material, vertices, 4, indices, 6);
 629                         }
 630                 }
 631                 /*
 632                         Add water sources to mesh if using new style
 633                 */
 634                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 635                                 && new_style_water)
 636                 {
 637                         assert(content_features(n).special_material);
 638                         video::SMaterial &liquid_material =
 639                                         *content_features(n).special_material;
 640                         assert(content_features(n).special_atlas);
 641                         AtlasPointer &pa_liquid1 =
 642                                         *content_features(n).special_atlas;
 643
 644                         bool top_is_air = false;
 645                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 646                         if(n.getContent() == CONTENT_AIR)
 647                                 top_is_air = true;
 648
 649                         if(top_is_air == false)
 650                                 continue;
 651
 652                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 653                         video::SColor c = MapBlock_LightColor(
 654                                         content_features(n).vertex_alpha, l);
 655
 656                         video::S3DVertex vertices[4] =
 657                         {
 658                                 /*video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c, 0,1),
 659                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c, 1,1),
 660                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c, 1,0),
 661                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c, 0,0),*/
 662                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 663                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 664                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 665                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 666                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 667                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 668                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 669                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 670                         };
 671
 672                         for(s32 i=0; i<4; i++)
 673                         {
 674                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 675                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 676                         }
 677
 678                         u16 indices[] = {0,1,2,2,3,0};
 679                         // Add to mesh collector
 680                         collector.append(liquid_material, vertices, 4, indices, 6);
 681                 }
 682                 /*
 683                         Add leaves if using new style
 684                 */
 685                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 686                 {
 687                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 688                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 689                         video::SColor c = MapBlock_LightColor(255, l);
 690
 691                         for(u32 j=0; j<6; j++)
 692                         {
 693                                 video::S3DVertex vertices[4] =
 694                                 {
 695                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 696                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 697                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 698                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 699                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 700                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 701                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 702                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 703                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 704                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 705                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 706                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 707                                 };
 708
 709                                 if(j == 0)
 710                                 {
 711                                         for(u16 i=0; i<4; i++)
 712                                                 vertices[i].Pos.rotateXZBy(0);
 713                                 }
 714                                 else if(j == 1)
 715                                 {
 716                                         for(u16 i=0; i<4; i++)
 717                                                 vertices[i].Pos.rotateXZBy(180);
 718                                 }
 719                                 else if(j == 2)
 720                                 {
 721                                         for(u16 i=0; i<4; i++)
 722                                                 vertices[i].Pos.rotateXZBy(-90);
 723                                 }
 724                                 else if(j == 3)
 725                                 {
 726                                         for(u16 i=0; i<4; i++)
 727                                                 vertices[i].Pos.rotateXZBy(90);
 728                                 }
 729                                 else if(j == 4)
 730                                 {
 731                                         for(u16 i=0; i<4; i++)
 732                                                 vertices[i].Pos.rotateYZBy(-90);
 733                                 }
 734                                 else if(j == 5)
 735                                 {
 736                                         for(u16 i=0; i<4; i++)
 737                                                 vertices[i].Pos.rotateYZBy(90);
 738                                 }
 739
 740                                 for(u16 i=0; i<4; i++)
 741                                 {
 742                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 743                                 }
 744
 745                                 u16 indices[] = {0,1,2,2,3,0};
 746                                 // Add to mesh collector
 747                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 748                         }
 749                 }
 750                 /*
 751                         Add glass
 752                 */
 753                 else if(n.getContent() == CONTENT_GLASS)
 754                 {
 755                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 756                         video::SColor c = MapBlock_LightColor(255, l);
 757
 758                         for(u32 j=0; j<6; j++)
 759                         {
 760                                 video::S3DVertex vertices[4] =
 761                                 {
 762                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 763                                                 pa_glass.x0(), pa_glass.y1()),
 764                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 765                                                 pa_glass.x1(), pa_glass.y1()),
 766                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 767                                                 pa_glass.x1(), pa_glass.y0()),
 768                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 769                                                 pa_glass.x0(), pa_glass.y0()),
 770                                 };
 771
 772                                 if(j == 0)
 773                                 {
 774                                         for(u16 i=0; i<4; i++)
 775                                                 vertices[i].Pos.rotateXZBy(0);
 776                                 }
 777                                 else if(j == 1)
 778                                 {
 779                                         for(u16 i=0; i<4; i++)
 780                                                 vertices[i].Pos.rotateXZBy(180);
 781                                 }
 782                                 else if(j == 2)
 783                                 {
 784                                         for(u16 i=0; i<4; i++)
 785                                                 vertices[i].Pos.rotateXZBy(-90);
 786                                 }
 787                                 else if(j == 3)
 788                                 {
 789                                         for(u16 i=0; i<4; i++)
 790                                                 vertices[i].Pos.rotateXZBy(90);
 791                                 }
 792                                 else if(j == 4)
 793                                 {
 794                                         for(u16 i=0; i<4; i++)
 795                                                 vertices[i].Pos.rotateYZBy(-90);
 796                                 }
 797                                 else if(j == 5)
 798                                 {
 799                                         for(u16 i=0; i<4; i++)
 800                                                 vertices[i].Pos.rotateYZBy(90);
 801                                 }
 802
 803                                 for(u16 i=0; i<4; i++)
 804                                 {
 805                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 806                                 }
 807
 808                                 u16 indices[] = {0,1,2,2,3,0};
 809                                 // Add to mesh collector
 810                                 collector.append(material_glass, vertices, 4, indices, 6);
 811                         }
 812                 }
 813                 /*
 814                         Add fence
 815                 */
 816                 else if(n.getContent() == CONTENT_FENCE)
 817                 {
 818                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 819                         video::SColor c = MapBlock_LightColor(255, l);
 820
 821                         const f32 post_rad=(f32)BS/10;
 822                         const f32 bar_rad=(f32)BS/20;
 823                         const f32 bar_len=(f32)(BS/2)-post_rad;
 824
 825                         // The post - always present
 826                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 827                         f32 postuv[24]={
 828                                         0.4,0.4,0.6,0.6,
 829                                         0.35,0,0.65,1,
 830                                         0.35,0,0.65,1,
 831                                         0.35,0,0.65,1,
 832                                         0.35,0,0.65,1,
 833                                         0.4,0.4,0.6,0.6};
 834                         makeCuboid(material_wood, &collector,
 835                                 &pa_wood, c, pos,
 836                                 post_rad,BS/2,post_rad, postuv);
 837
 838                         // Now a section of fence, +X, if there's a post there
 839                         v3s16 p2 = p;
 840                         p2.X++;
 841                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 842                         if(n2.getContent() == CONTENT_FENCE)
 843                         {
 844                                 pos = intToFloat(p+blockpos_nodes, BS);
 845                                 pos.X += BS/2;
 846                                 pos.Y += BS/4;
 847                                 f32 xrailuv[24]={
 848                                         0,0.4,1,0.6,
 849                                         0,0.4,1,0.6,
 850                                         0,0.4,1,0.6,
 851                                         0,0.4,1,0.6,
 852                                         0,0.4,1,0.6,
 853                                         0,0.4,1,0.6};
 854                                 makeCuboid(material_wood, &collector,
 855                                         &pa_wood, c, pos,
 856                                         bar_len,bar_rad,bar_rad, xrailuv);
 857
 858                                 pos.Y -= BS/2;
 859                                 makeCuboid(material_wood, &collector,
 860                                         &pa_wood, c, pos,
 861                                         bar_len,bar_rad,bar_rad, xrailuv);
 862                         }
 863
 864                         // Now a section of fence, +Z, if there's a post there
 865                         p2 = p;
 866                         p2.Z++;
 867                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 868                         if(n2.getContent() == CONTENT_FENCE)
 869                         {
 870                                 pos = intToFloat(p+blockpos_nodes, BS);
 871                                 pos.Z += BS/2;
 872                                 pos.Y += BS/4;
 873                                 f32 zrailuv[24]={
 874                                         0,0.4,1,0.6,
 875                                         0,0.4,1,0.6,
 876                                         0,0.4,1,0.6,
 877                                         0,0.4,1,0.6,
 878                                         0,0.4,1,0.6,
 879                                         0,0.4,1,0.6};
 880                                 makeCuboid(material_wood, &collector,
 881                                         &pa_wood, c, pos,
 882                                         bar_rad,bar_rad,bar_len, zrailuv);
 883                                 pos.Y -= BS/2;
 884                                 makeCuboid(material_wood, &collector,
 885                                         &pa_wood, c, pos,
 886                                         bar_rad,bar_rad,bar_len, zrailuv);
 887
 888                         }
 889
 890                 }
 891 #if 1
 892                 /*
 893                         Add stones with minerals if stone is invisible
 894                 */
 895                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 896                 {
 897                         for(u32 j=0; j<6; j++)
 898                         {
 899                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 900                                 v3s16 dir = g_6dirs[j];
 901                                 /*u8 l = 0;
 902                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 903                                 if(content_features(n2).param_type == CPT_LIGHT)
 904                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 905                                 else
 906                                         l = 255;*/
 907                                 u8 l = 255;
 908                                 video::SColor c = MapBlock_LightColor(255, l);
 909
 910                                 // Get the right texture
 911                                 TileSpec ts = n.getTile(dir);
 912                                 AtlasPointer ap = ts.texture;
 913                                 material_general.setTexture(0, ap.atlas);
 914
 915                                 video::S3DVertex vertices[4] =
 916                                 {
 917                                         /*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 918                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 919                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
 920                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c, 0,0),*/
 921                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 922                                                 ap.x0(), ap.y1()),
 923                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 924                                                 ap.x1(), ap.y1()),
 925                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 926                                                 ap.x1(), ap.y0()),
 927                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 928                                                 ap.x0(), ap.y0()),
 929                                 };
 930
 931                                 if(j == 0)
 932                                 {
 933                                         for(u16 i=0; i<4; i++)
 934                                                 vertices[i].Pos.rotateXZBy(0);
 935                                 }
 936                                 else if(j == 1)
 937                                 {
 938                                         for(u16 i=0; i<4; i++)
 939                                                 vertices[i].Pos.rotateXZBy(180);
 940                                 }
 941                                 else if(j == 2)
 942                                 {
 943                                         for(u16 i=0; i<4; i++)
 944                                                 vertices[i].Pos.rotateXZBy(-90);
 945                                 }
 946                                 else if(j == 3)
 947                                 {
 948                                         for(u16 i=0; i<4; i++)
 949                                                 vertices[i].Pos.rotateXZBy(90);
 950                                 }
 951                                 else if(j == 4)
 952
 953                                 for(u16 i=0; i<4; i++)
 954                                 {
 955                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 956                                 }
 957
 958                                 u16 indices[] = {0,1,2,2,3,0};
 959                                 // Add to mesh collector
 960                                 collector.append(material_general, vertices, 4, indices, 6);
 961                         }
 962                 }
 963 #endif
 964                 else if(n.getContent() == CONTENT_PAPYRUS)
 965                 {
 966                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 967                         video::SColor c = MapBlock_LightColor(255, l);
 968
 969                         for(u32 j=0; j<4; j++)
 970                         {
 971                                 video::S3DVertex vertices[4] =
 972                                 {
 973                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 974                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 975                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 976                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 977                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 978                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 979                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 980                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 981                                 };
 982
 983                                 if(j == 0)
 984                                 {
 985                                         for(u16 i=0; i<4; i++)
 986                                                 vertices[i].Pos.rotateXZBy(45);
 987                                 }
 988                                 else if(j == 1)
 989                                 {
 990                                         for(u16 i=0; i<4; i++)
 991                                                 vertices[i].Pos.rotateXZBy(-45);
 992                                 }
 993                                 else if(j == 2)
 994                                 {
 995                                         for(u16 i=0; i<4; i++)
 996                                                 vertices[i].Pos.rotateXZBy(135);
 997                                 }
 998                                 else if(j == 3)
 999                                 {
1000                                         for(u16 i=0; i<4; i++)
1001                                                 vertices[i].Pos.rotateXZBy(-135);
1002                                 }
1003
1004                                 for(u16 i=0; i<4; i++)
1005                                 {
1006                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1007                                 }
1008
1009                                 u16 indices[] = {0,1,2,2,3,0};
1010                                 // Add to mesh collector
1011                                 collector.append(material_papyrus, vertices, 4, indices, 6);
1012                         }
1013                 }
1014                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
1015                 {
1016                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1017                         video::SColor c = MapBlock_LightColor(255, l);
1018
1019                         for(u32 j=0; j<4; j++)
1020                         {
1021                                 video::S3DVertex vertices[4] =
1022                                 {
1023                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1024                                                 pa_papyrus.x0(), pa_papyrus.y1()),
1025                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1026                                                 pa_papyrus.x1(), pa_papyrus.y1()),
1027                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1028                                                 pa_papyrus.x1(), pa_papyrus.y0()),
1029                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1030                                                 pa_papyrus.x0(), pa_papyrus.y0()),
1031                                 };
1032
1033                                 if(j == 0)
1034                                 {
1035                                         for(u16 i=0; i<4; i++)
1036                                                 vertices[i].Pos.rotateXZBy(45);
1037                                 }
1038                                 else if(j == 1)
1039                                 {
1040                                         for(u16 i=0; i<4; i++)
1041                                                 vertices[i].Pos.rotateXZBy(-45);
1042                                 }
1043                                 else if(j == 2)
1044                                 {
1045                                         for(u16 i=0; i<4; i++)
1046                                                 vertices[i].Pos.rotateXZBy(135);
1047                                 }
1048                                 else if(j == 3)
1049                                 {
1050                                         for(u16 i=0; i<4; i++)
1051                                                 vertices[i].Pos.rotateXZBy(-135);
1052                                 }
1053
1054                                 for(u16 i=0; i<4; i++)
1055                                 {
1056                                         vertices[i].Pos *= 1.3;
1057                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1058                                 }
1059
1060                                 u16 indices[] = {0,1,2,2,3,0};
1061                                 // Add to mesh collector
1062                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1063                         }
1064                 }
1065                 else if(n.getContent() == CONTENT_RAIL)
1066                 {
1067                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1068                         video::SColor c = MapBlock_LightColor(255, l);
1069
1070                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1071                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1072
1073                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1074                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1075                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1076                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1077
1078                         if(n_minus_x.getContent() == CONTENT_RAIL)
1079                                 is_rail_x[0] = true;
1080                         if(n_plus_x.getContent() == CONTENT_RAIL)
1081                                 is_rail_x[1] = true;
1082                         if(n_minus_z.getContent() == CONTENT_RAIL)
1083                                 is_rail_z[0] = true;
1084                         if(n_plus_z.getContent() == CONTENT_RAIL)
1085                                 is_rail_z[1] = true;
1086
1087                         float d = (float)BS/16;
1088                         video::S3DVertex vertices[4] =
1089                         {
1090                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1091                                         0, 1),
1092                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1093                                         1, 1),
1094                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1095                                         1, 0),
1096                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1097                                         0, 0),
1098                         };
1099
1100                         video::SMaterial material_rail;
1101                         material_rail.setFlag(video::EMF_LIGHTING, false);
1102                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
1103                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1104                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1105                         material_rail.MaterialType
1106                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1107
1108                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1109
1110                         // Assign textures
1111                         if(adjacencies < 2)
1112                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1113                         else if(adjacencies == 2)
1114                         {
1115                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1116                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
1117                                 else
1118                                         material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_curved.png"));
1119                         }
1120                         else if(adjacencies == 3)
1121                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_t_junction.png"));
1122                         else if(adjacencies == 4)
1123                                 material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_crossing.png"));
1124
1125                         // Rotate textures
1126                         int angle = 0;
1127
1128                         if(adjacencies == 1)
1129                         {
1130                                 if(is_rail_x[0] || is_rail_x[1])
1131                                         angle = 90;
1132                         }
1133                         else if(adjacencies == 2)
1134                         {
1135                                 if(is_rail_x[0] && is_rail_x[1])
1136                                         angle = 90;
1137                                 else if(is_rail_x[0] && is_rail_z[0])
1138                                         angle = 270;
1139                                 else if(is_rail_x[0] && is_rail_z[1])
1140                                         angle = 180;
1141                                 else if(is_rail_x[1] && is_rail_z[1])
1142                                         angle = 90;
1143                         }
1144                         else if(adjacencies == 3)
1145                         {
1146                                 if(!is_rail_x[0])
1147                                         angle=0;
1148                                 if(!is_rail_x[1])
1149                                         angle=180;
1150                                 if(!is_rail_z[0])
1151                                         angle=90;
1152                                 if(!is_rail_z[1])
1153                                         angle=270;
1154                         }
1155
1156                         if(angle != 0) {
1157                                 for(u16 i=0; i<4; i++)
1158                                         vertices[i].Pos.rotateXZBy(angle);
1159                         }
1160
1161                         for(s32 i=0; i<4; i++)
1162                         {
1163                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1164                         }
1165
1166                         u16 indices[] = {0,1,2,2,3,0};
1167                         collector.append(material_rail, vertices, 4, indices, 6);
1168                 }
1169                 else if (n.getContent() == CONTENT_LADDER) {
1170                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1171                         video::SColor c(255,l,l,l);
1172
1173                         float d = (float)BS/16;
1174
1175                         // Assume wall is at X+
1176                         video::S3DVertex vertices[4] =
1177                         {
1178                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c, 0,1),
1179                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c, 1,1),
1180                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c, 1,0),
1181                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c, 0,0),
1182                         };
1183
1184                         v3s16 dir = unpackDir(n.param2);
1185
1186                         for(s32 i=0; i<4; i++)
1187                         {
1188                                 if(dir == v3s16(1,0,0))
1189                                         vertices[i].Pos.rotateXZBy(0);
1190                                 if(dir == v3s16(-1,0,0))
1191                                         vertices[i].Pos.rotateXZBy(180);
1192                                 if(dir == v3s16(0,0,1))
1193                                         vertices[i].Pos.rotateXZBy(90);
1194                                 if(dir == v3s16(0,0,-1))
1195                                         vertices[i].Pos.rotateXZBy(-90);
1196                                 if(dir == v3s16(0,-1,0))
1197                                         vertices[i].Pos.rotateXYBy(-90);
1198                                 if(dir == v3s16(0,1,0))
1199                                         vertices[i].Pos.rotateXYBy(90);
1200
1201                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1202                         }
1203
1204                         video::SMaterial material_ladder;
1205                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1206                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, false);
1207                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1208                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1209                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1210                         material_ladder.setTexture(0, g_texturesource->getTextureRaw("ladder.png"));
1211
1212                         u16 indices[] = {0,1,2,2,3,0};
1213                         // Add to mesh collector
1214                         collector.append(material_ladder, vertices, 4, indices, 6);
1215                 }
1216                 else if(n.getContent() == CONTENT_APPLE)
1217                 {
1218                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1219                         video::SColor c = MapBlock_LightColor(255, l);
1220
1221                         for(u32 j=0; j<4; j++)
1222                         {
1223                                 video::S3DVertex vertices[4] =
1224                                 {
1225                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1226                                                 pa_apple.x0(), pa_apple.y1()),
1227                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1228                                                 pa_apple.x1(), pa_apple.y1()),
1229                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
1230                                                 pa_apple.x1(), pa_apple.y0()),
1231                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
1232                                                 pa_apple.x0(), pa_apple.y0()),
1233                                 };
1234
1235                                 if(j == 0)
1236                                 {
1237                                         for(u16 i=0; i<4; i++)
1238                                                 vertices[i].Pos.rotateXZBy(45);
1239                                 }
1240                                 else if(j == 1)
1241                                 {
1242                                         for(u16 i=0; i<4; i++)
1243                                                 vertices[i].Pos.rotateXZBy(-45);
1244                                 }
1245                                 else if(j == 2)
1246                                 {
1247                                         for(u16 i=0; i<4; i++)
1248                                                 vertices[i].Pos.rotateXZBy(135);
1249                                 }
1250                                 else if(j == 3)
1251                                 {
1252                                         for(u16 i=0; i<4; i++)
1253                                                 vertices[i].Pos.rotateXZBy(-135);
1254                                 }
1255
1256                                 for(u16 i=0; i<4; i++)
1257                                 {
1258                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1259                                 }
1260
1261                                 u16 indices[] = {0,1,2,2,3,0};
1262                                 // Add to mesh collector
1263                                 collector.append(material_apple, vertices, 4, indices, 6);
1264                         }
1265                 }
1266         }
1267 }
1268 #endif
1269