src/client/clientmap.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 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 Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser 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 "clientmap.h"
  21 #include "client.h"
  22 #include "mapblock_mesh.h"
  23 #include <IMaterialRenderer.h>
  24 #include <matrix4.h>
  25 #include "mapsector.h"
  26 #include "mapblock.h"
  27 #include "profiler.h"
  28 #include "settings.h"
  29 #include "camera.h"               // CameraModes
  30 #include "util/basic_macros.h"
  31 #include <algorithm>
  32 #include "client/renderingengine.h"
  33
  34 // struct MeshBufListList
  35 void MeshBufListList::clear()
  36 {
  37         for (auto &list : lists)
  38                 list.clear();
  39 }
  40
  41 void MeshBufListList::add(scene::IMeshBuffer *buf, v3s16 position, u8 layer)
  42 {
  43         // Append to the correct layer
  44         std::vector<MeshBufList> &list = lists[layer];
  45         const video::SMaterial &m = buf->getMaterial();
  46         for (MeshBufList &l : list) {
  47                 // comparing a full material is quite expensive so we don't do it if
  48                 // not even first texture is equal
  49                 if (l.m.TextureLayer[0].Texture != m.TextureLayer[0].Texture)
  50                         continue;
  51
  52                 if (l.m == m) {
  53                         l.bufs.emplace_back(position, buf);
  54                         return;
  55                 }
  56         }
  57         MeshBufList l;
  58         l.m = m;
  59         l.bufs.emplace_back(position, buf);
  60         list.emplace_back(l);
  61 }
  62
  63 // ClientMap
  64
  65 ClientMap::ClientMap(
  66                 Client *client,
  67                 RenderingEngine *rendering_engine,
  68                 MapDrawControl &control,
  69                 s32 id
  70 ):
  71         Map(client),
  72         scene::ISceneNode(rendering_engine->get_scene_manager()->getRootSceneNode(),
  73                 rendering_engine->get_scene_manager(), id),
  74         m_client(client),
  75         m_rendering_engine(rendering_engine),
  76         m_control(control)
  77 {
  78
  79         /*
  80          * @Liso: Sadly C++ doesn't have introspection, so the only way we have to know
  81          * the class is whith a name ;) Name property cames from ISceneNode base class.
  82          */
  83         Name = "ClientMap";
  84         m_box = aabb3f(-BS*1000000,-BS*1000000,-BS*1000000,
  85                         BS*1000000,BS*1000000,BS*1000000);
  86
  87         /* TODO: Add a callback function so these can be updated when a setting
  88          *       changes.  At this point in time it doesn't matter (e.g. /set
  89          *       is documented to change server settings only)
  90          *
  91          * TODO: Local caching of settings is not optimal and should at some stage
  92          *       be updated to use a global settings object for getting thse values
  93          *       (as opposed to the this local caching). This can be addressed in
  94          *       a later release.
  95          */
  96         m_cache_trilinear_filter  = g_settings->getBool("trilinear_filter");
  97         m_cache_bilinear_filter   = g_settings->getBool("bilinear_filter");
  98         m_cache_anistropic_filter = g_settings->getBool("anisotropic_filter");
  99
 100 }
 101
 102 MapSector * ClientMap::emergeSector(v2s16 p2d)
 103 {
 104         // Check that it doesn't exist already
 105         MapSector *sector = getSectorNoGenerate(p2d);
 106
 107         // Create it if it does not exist yet
 108         if (!sector) {
 109                 sector = new MapSector(this, p2d, m_gamedef);
 110                 m_sectors[p2d] = sector;
 111         }
 112
 113         return sector;
 114 }
 115
 116 void ClientMap::OnRegisterSceneNode()
 117 {
 118         if(IsVisible)
 119         {
 120                 SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
 121                 SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT);
 122         }
 123
 124         ISceneNode::OnRegisterSceneNode();
 125
 126         if (!m_added_to_shadow_renderer) {
 127                 m_added_to_shadow_renderer = true;
 128                 if (auto shadows = m_rendering_engine->get_shadow_renderer())
 129                         shadows->addNodeToShadowList(this);
 130         }
 131 }
 132
 133 void ClientMap::getBlocksInViewRange(v3s16 cam_pos_nodes,
 134                 v3s16 *p_blocks_min, v3s16 *p_blocks_max, float range)
 135 {
 136         if (range <= 0.0f)
 137                 range = m_control.wanted_range;
 138
 139         v3s16 box_nodes_d = range * v3s16(1, 1, 1);
 140         // Define p_nodes_min/max as v3s32 because 'cam_pos_nodes -/+ box_nodes_d'
 141         // can exceed the range of v3s16 when a large view range is used near the
 142         // world edges.
 143         v3s32 p_nodes_min(
 144                 cam_pos_nodes.X - box_nodes_d.X,
 145                 cam_pos_nodes.Y - box_nodes_d.Y,
 146                 cam_pos_nodes.Z - box_nodes_d.Z);
 147         v3s32 p_nodes_max(
 148                 cam_pos_nodes.X + box_nodes_d.X,
 149                 cam_pos_nodes.Y + box_nodes_d.Y,
 150                 cam_pos_nodes.Z + box_nodes_d.Z);
 151         // Take a fair amount as we will be dropping more out later
 152         // Umm... these additions are a bit strange but they are needed.
 153         *p_blocks_min = v3s16(
 154                         p_nodes_min.X / MAP_BLOCKSIZE - 3,
 155                         p_nodes_min.Y / MAP_BLOCKSIZE - 3,
 156                         p_nodes_min.Z / MAP_BLOCKSIZE - 3);
 157         *p_blocks_max = v3s16(
 158                         p_nodes_max.X / MAP_BLOCKSIZE + 1,
 159                         p_nodes_max.Y / MAP_BLOCKSIZE + 1,
 160                         p_nodes_max.Z / MAP_BLOCKSIZE + 1);
 161 }
 162
 163 void ClientMap::updateDrawList()
 164 {
 165         ScopeProfiler sp(g_profiler, "CM::updateDrawList()", SPT_AVG);
 166
 167         for (auto &i : m_drawlist) {
 168                 MapBlock *block = i.second;
 169                 block->refDrop();
 170         }
 171         m_drawlist.clear();
 172
 173         const v3f camera_position = m_camera_position;
 174         const v3f camera_direction = m_camera_direction;
 175
 176         // Use a higher fov to accomodate faster camera movements.
 177         // Blocks are cropped better when they are drawn.
 178         const f32 camera_fov = m_camera_fov * 1.1f;
 179
 180         v3s16 cam_pos_nodes = floatToInt(camera_position, BS);
 181         v3s16 p_blocks_min;
 182         v3s16 p_blocks_max;
 183         getBlocksInViewRange(cam_pos_nodes, &p_blocks_min, &p_blocks_max);
 184
 185         // Read the vision range, unless unlimited range is enabled.
 186         float range = m_control.range_all ? 1e7 : m_control.wanted_range;
 187
 188         // Number of blocks currently loaded by the client
 189         u32 blocks_loaded = 0;
 190         // Number of blocks with mesh in rendering range
 191         u32 blocks_in_range_with_mesh = 0;
 192         // Number of blocks occlusion culled
 193         u32 blocks_occlusion_culled = 0;
 194
 195         // No occlusion culling when free_move is on and camera is
 196         // inside ground
 197         bool occlusion_culling_enabled = true;
 198         if (g_settings->getBool("free_move") && g_settings->getBool("noclip")) {
 199                 MapNode n = getNode(cam_pos_nodes);
 200                 if (n.getContent() == CONTENT_IGNORE ||
 201                                 m_nodedef->get(n).solidness == 2)
 202                         occlusion_culling_enabled = false;
 203         }
 204
 205
 206         // Uncomment to debug occluded blocks in the wireframe mode
 207         // TODO: Include this as a flag for an extended debugging setting
 208         //if (occlusion_culling_enabled && m_control.show_wireframe)
 209         //    occlusion_culling_enabled = porting::getTimeS() & 1;
 210
 211         for (const auto &sector_it : m_sectors) {
 212                 MapSector *sector = sector_it.second;
 213                 v2s16 sp = sector->getPos();
 214
 215                 blocks_loaded += sector->size();
 216                 if (!m_control.range_all) {
 217                         if (sp.X < p_blocks_min.X || sp.X > p_blocks_max.X ||
 218                                         sp.Y < p_blocks_min.Z || sp.Y > p_blocks_max.Z)
 219                                 continue;
 220                 }
 221
 222                 MapBlockVect sectorblocks;
 223                 sector->getBlocks(sectorblocks);
 224
 225                 /*
 226                         Loop through blocks in sector
 227                 */
 228
 229                 u32 sector_blocks_drawn = 0;
 230
 231                 for (MapBlock *block : sectorblocks) {
 232                         /*
 233                                 Compare block position to camera position, skip
 234                                 if not seen on display
 235                         */
 236
 237                         if (!block->mesh) {
 238                                 // Ignore if mesh doesn't exist
 239                                 continue;
 240                         }
 241
 242                         v3s16 block_coord = block->getPos();
 243                         v3s16 block_position = block->getPosRelative() + MAP_BLOCKSIZE / 2;
 244
 245                         // First, perform a simple distance check, with a padding of one extra block.
 246                         if (!m_control.range_all &&
 247                                         block_position.getDistanceFrom(cam_pos_nodes) > range + MAP_BLOCKSIZE)
 248                                 continue; // Out of range, skip.
 249
 250                         // Keep the block alive as long as it is in range.
 251                         block->resetUsageTimer();
 252                         blocks_in_range_with_mesh++;
 253
 254                         // Frustum culling
 255                         float d = 0.0;
 256                         if (!isBlockInSight(block_coord, camera_position,
 257                                         camera_direction, camera_fov, range * BS, &d))
 258                                 continue;
 259
 260                         // Occlusion culling
 261                         if ((!m_control.range_all && d > m_control.wanted_range * BS) ||
 262                                         (occlusion_culling_enabled && isBlockOccluded(block, cam_pos_nodes))) {
 263                                 blocks_occlusion_culled++;
 264                                 continue;
 265                         }
 266
 267                         // Add to set
 268                         block->refGrab();
 269                         m_drawlist[block_coord] = block;
 270
 271                         sector_blocks_drawn++;
 272                 } // foreach sectorblocks
 273
 274                 if (sector_blocks_drawn != 0)
 275                         m_last_drawn_sectors.insert(sp);
 276         }
 277
 278         g_profiler->avg("MapBlock meshes in range [#]", blocks_in_range_with_mesh);
 279         g_profiler->avg("MapBlocks occlusion culled [#]", blocks_occlusion_culled);
 280         g_profiler->avg("MapBlocks drawn [#]", m_drawlist.size());
 281         g_profiler->avg("MapBlocks loaded [#]", blocks_loaded);
 282 }
 283
 284 void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 285 {
 286         bool is_transparent_pass = pass == scene::ESNRP_TRANSPARENT;
 287
 288         std::string prefix;
 289         if (pass == scene::ESNRP_SOLID)
 290                 prefix = "renderMap(SOLID): ";
 291         else
 292                 prefix = "renderMap(TRANSPARENT): ";
 293
 294         /*
 295                 This is called two times per frame, reset on the non-transparent one
 296         */
 297         if (pass == scene::ESNRP_SOLID)
 298                 m_last_drawn_sectors.clear();
 299
 300         /*
 301                 Get animation parameters
 302         */
 303         const float animation_time = m_client->getAnimationTime();
 304         const int crack = m_client->getCrackLevel();
 305         const u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
 306
 307         const v3f camera_position = m_camera_position;
 308
 309         /*
 310                 Get all blocks and draw all visible ones
 311         */
 312
 313         u32 vertex_count = 0;
 314         u32 drawcall_count = 0;
 315
 316         // For limiting number of mesh animations per frame
 317         u32 mesh_animate_count = 0;
 318         //u32 mesh_animate_count_far = 0;
 319
 320         /*
 321                 Draw the selected MapBlocks
 322         */
 323
 324         MeshBufListList drawbufs;
 325
 326         for (auto &i : m_drawlist) {
 327                 v3s16 block_pos = i.first;
 328                 MapBlock *block = i.second;
 329
 330                 // If the mesh of the block happened to get deleted, ignore it
 331                 if (!block->mesh)
 332                         continue;
 333
 334                 v3f block_pos_r = intToFloat(block->getPosRelative() + MAP_BLOCKSIZE / 2, BS);
 335                 float d = camera_position.getDistanceFrom(block_pos_r);
 336                 d = MYMAX(0,d - BLOCK_MAX_RADIUS);
 337
 338                 // Mesh animation
 339                 if (pass == scene::ESNRP_SOLID) {
 340                         MapBlockMesh *mapBlockMesh = block->mesh;
 341                         assert(mapBlockMesh);
 342                         // Pretty random but this should work somewhat nicely
 343                         bool faraway = d >= BS * 50;
 344                         if (mapBlockMesh->isAnimationForced() || !faraway ||
 345                                         mesh_animate_count < (m_control.range_all ? 200 : 50)) {
 346
 347                                 bool animated = mapBlockMesh->animate(faraway, animation_time,
 348                                         crack, daynight_ratio);
 349                                 if (animated)
 350                                         mesh_animate_count++;
 351                         } else {
 352                                 mapBlockMesh->decreaseAnimationForceTimer();
 353                         }
 354                 }
 355
 356                 /*
 357                         Get the meshbuffers of the block
 358                 */
 359                 {
 360                         MapBlockMesh *mapBlockMesh = block->mesh;
 361                         assert(mapBlockMesh);
 362
 363                         for (int layer = 0; layer < MAX_TILE_LAYERS; layer++) {
 364                                 scene::IMesh *mesh = mapBlockMesh->getMesh(layer);
 365                                 assert(mesh);
 366
 367                                 u32 c = mesh->getMeshBufferCount();
 368                                 for (u32 i = 0; i < c; i++) {
 369                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
 370
 371                                         video::SMaterial& material = buf->getMaterial();
 372                                         video::IMaterialRenderer* rnd =
 373                                                 driver->getMaterialRenderer(material.MaterialType);
 374                                         bool transparent = (rnd && rnd->isTransparent());
 375                                         if (transparent == is_transparent_pass) {
 376                                                 if (buf->getVertexCount() == 0)
 377                                                         errorstream << "Block [" << analyze_block(block)
 378                                                                 << "] contains an empty meshbuf" << std::endl;
 379
 380                                                 material.setFlag(video::EMF_TRILINEAR_FILTER,
 381                                                         m_cache_trilinear_filter);
 382                                                 material.setFlag(video::EMF_BILINEAR_FILTER,
 383                                                         m_cache_bilinear_filter);
 384                                                 material.setFlag(video::EMF_ANISOTROPIC_FILTER,
 385                                                         m_cache_anistropic_filter);
 386                                                 material.setFlag(video::EMF_WIREFRAME,
 387                                                         m_control.show_wireframe);
 388
 389                                                 drawbufs.add(buf, block_pos, layer);
 390                                         }
 391                                 }
 392                         }
 393                 }
 394         }
 395
 396         TimeTaker draw("Drawing mesh buffers");
 397
 398         core::matrix4 m; // Model matrix
 399         v3f offset = intToFloat(m_camera_offset, BS);
 400
 401         // Render all layers in order
 402         for (auto &lists : drawbufs.lists) {
 403                 for (MeshBufList &list : lists) {
 404                         // Check and abort if the machine is swapping a lot
 405                         if (draw.getTimerTime() > 2000) {
 406                                 infostream << "ClientMap::renderMap(): Rendering took >2s, " <<
 407                                                 "returning." << std::endl;
 408                                 return;
 409                         }
 410
 411                         // pass the shadow map texture to the buffer texture
 412                         ShadowRenderer *shadow = m_rendering_engine->get_shadow_renderer();
 413                         if (shadow && shadow->is_active()) {
 414                                 auto &layer = list.m.TextureLayer[3];
 415                                 layer.Texture = shadow->get_texture();
 416                                 layer.TextureWrapU = video::E_TEXTURE_CLAMP::ETC_CLAMP_TO_EDGE;
 417                                 layer.TextureWrapV = video::E_TEXTURE_CLAMP::ETC_CLAMP_TO_EDGE;
 418                                 layer.TrilinearFilter = true;
 419                         }
 420
 421                         driver->setMaterial(list.m);
 422
 423                         drawcall_count += list.bufs.size();
 424                         for (auto &pair : list.bufs) {
 425                                 scene::IMeshBuffer *buf = pair.second;
 426
 427                                 v3f block_wpos = intToFloat(pair.first * MAP_BLOCKSIZE, BS);
 428                                 m.setTranslation(block_wpos - offset);
 429
 430                                 driver->setTransform(video::ETS_WORLD, m);
 431                                 driver->drawMeshBuffer(buf);
 432                                 vertex_count += buf->getVertexCount();
 433                         }
 434                 }
 435         }
 436         g_profiler->avg(prefix + "draw meshes [ms]", draw.stop(true));
 437
 438         // Log only on solid pass because values are the same
 439         if (pass == scene::ESNRP_SOLID) {
 440                 g_profiler->avg("renderMap(): animated meshes [#]", mesh_animate_count);
 441         }
 442
 443         g_profiler->avg(prefix + "vertices drawn [#]", vertex_count);
 444         g_profiler->avg(prefix + "drawcalls [#]", drawcall_count);
 445 }
 446
 447 static bool getVisibleBrightness(Map *map, const v3f &p0, v3f dir, float step,
 448         float step_multiplier, float start_distance, float end_distance,
 449         const NodeDefManager *ndef, u32 daylight_factor, float sunlight_min_d,
 450         int *result, bool *sunlight_seen)
 451 {
 452         int brightness_sum = 0;
 453         int brightness_count = 0;
 454         float distance = start_distance;
 455         dir.normalize();
 456         v3f pf = p0;
 457         pf += dir * distance;
 458         int noncount = 0;
 459         bool nonlight_seen = false;
 460         bool allow_allowing_non_sunlight_propagates = false;
 461         bool allow_non_sunlight_propagates = false;
 462         // Check content nearly at camera position
 463         {
 464                 v3s16 p = floatToInt(p0 /*+ dir * 3*BS*/, BS);
 465                 MapNode n = map->getNode(p);
 466                 if(ndef->get(n).param_type == CPT_LIGHT &&
 467                                 !ndef->get(n).sunlight_propagates)
 468                         allow_allowing_non_sunlight_propagates = true;
 469         }
 470         // If would start at CONTENT_IGNORE, start closer
 471         {
 472                 v3s16 p = floatToInt(pf, BS);
 473                 MapNode n = map->getNode(p);
 474                 if(n.getContent() == CONTENT_IGNORE){
 475                         float newd = 2*BS;
 476                         pf = p0 + dir * 2*newd;
 477                         distance = newd;
 478                         sunlight_min_d = 0;
 479                 }
 480         }
 481         for (int i=0; distance < end_distance; i++) {
 482                 pf += dir * step;
 483                 distance += step;
 484                 step *= step_multiplier;
 485
 486                 v3s16 p = floatToInt(pf, BS);
 487                 MapNode n = map->getNode(p);
 488                 if (allow_allowing_non_sunlight_propagates && i == 0 &&
 489                                 ndef->get(n).param_type == CPT_LIGHT &&
 490                                 !ndef->get(n).sunlight_propagates) {
 491                         allow_non_sunlight_propagates = true;
 492                 }
 493
 494                 if (ndef->get(n).param_type != CPT_LIGHT ||
 495                                 (!ndef->get(n).sunlight_propagates &&
 496                                         !allow_non_sunlight_propagates)){
 497                         nonlight_seen = true;
 498                         noncount++;
 499                         if(noncount >= 4)
 500                                 break;
 501                         continue;
 502                 }
 503
 504                 if (distance >= sunlight_min_d && !*sunlight_seen && !nonlight_seen)
 505                         if (n.getLight(LIGHTBANK_DAY, ndef) == LIGHT_SUN)
 506                                 *sunlight_seen = true;
 507                 noncount = 0;
 508                 brightness_sum += decode_light(n.getLightBlend(daylight_factor, ndef));
 509                 brightness_count++;
 510         }
 511         *result = 0;
 512         if(brightness_count == 0)
 513                 return false;
 514         *result = brightness_sum / brightness_count;
 515         /*std::cerr<<"Sampled "<<brightness_count<<" points; result="
 516                         <<(*result)<<std::endl;*/
 517         return true;
 518 }
 519
 520 int ClientMap::getBackgroundBrightness(float max_d, u32 daylight_factor,
 521                 int oldvalue, bool *sunlight_seen_result)
 522 {
 523         ScopeProfiler sp(g_profiler, "CM::getBackgroundBrightness", SPT_AVG);
 524         static v3f z_directions[50] = {
 525                 v3f(-100, 0, 0)
 526         };
 527         static f32 z_offsets[50] = {
 528                 -1000,
 529         };
 530
 531         if (z_directions[0].X < -99) {
 532                 for (u32 i = 0; i < ARRLEN(z_directions); i++) {
 533                         // Assumes FOV of 72 and 16/9 aspect ratio
 534                         z_directions[i] = v3f(
 535                                 0.02 * myrand_range(-100, 100),
 536                                 1.0,
 537                                 0.01 * myrand_range(-100, 100)
 538                         ).normalize();
 539                         z_offsets[i] = 0.01 * myrand_range(0,100);
 540                 }
 541         }
 542
 543         int sunlight_seen_count = 0;
 544         float sunlight_min_d = max_d*0.8;
 545         if(sunlight_min_d > 35*BS)
 546                 sunlight_min_d = 35*BS;
 547         std::vector<int> values;
 548         values.reserve(ARRLEN(z_directions));
 549         for (u32 i = 0; i < ARRLEN(z_directions); i++) {
 550                 v3f z_dir = z_directions[i];
 551                 core::CMatrix4<f32> a;
 552                 a.buildRotateFromTo(v3f(0,1,0), z_dir);
 553                 v3f dir = m_camera_direction;
 554                 a.rotateVect(dir);
 555                 int br = 0;
 556                 float step = BS*1.5;
 557                 if(max_d > 35*BS)
 558                         step = max_d / 35 * 1.5;
 559                 float off = step * z_offsets[i];
 560                 bool sunlight_seen_now = false;
 561                 bool ok = getVisibleBrightness(this, m_camera_position, dir,
 562                                 step, 1.0, max_d*0.6+off, max_d, m_nodedef, daylight_factor,
 563                                 sunlight_min_d,
 564                                 &br, &sunlight_seen_now);
 565                 if(sunlight_seen_now)
 566                         sunlight_seen_count++;
 567                 if(!ok)
 568                         continue;
 569                 values.push_back(br);
 570                 // Don't try too much if being in the sun is clear
 571                 if(sunlight_seen_count >= 20)
 572                         break;
 573         }
 574         int brightness_sum = 0;
 575         int brightness_count = 0;
 576         std::sort(values.begin(), values.end());
 577         u32 num_values_to_use = values.size();
 578         if(num_values_to_use >= 10)
 579                 num_values_to_use -= num_values_to_use/2;
 580         else if(num_values_to_use >= 7)
 581                 num_values_to_use -= num_values_to_use/3;
 582         u32 first_value_i = (values.size() - num_values_to_use) / 2;
 583
 584         for (u32 i=first_value_i; i < first_value_i + num_values_to_use; i++) {
 585                 brightness_sum += values[i];
 586                 brightness_count++;
 587         }
 588
 589         int ret = 0;
 590         if(brightness_count == 0){
 591                 MapNode n = getNode(floatToInt(m_camera_position, BS));
 592                 if(m_nodedef->get(n).param_type == CPT_LIGHT){
 593                         ret = decode_light(n.getLightBlend(daylight_factor, m_nodedef));
 594                 } else {
 595                         ret = oldvalue;
 596                 }
 597         } else {
 598                 ret = brightness_sum / brightness_count;
 599         }
 600
 601         *sunlight_seen_result = (sunlight_seen_count > 0);
 602         return ret;
 603 }
 604
 605 void ClientMap::renderPostFx(CameraMode cam_mode)
 606 {
 607         // Sadly ISceneManager has no "post effects" render pass, in that case we
 608         // could just register for that and handle it in renderMap().
 609
 610         MapNode n = getNode(floatToInt(m_camera_position, BS));
 611
 612         // - If the player is in a solid node, make everything black.
 613         // - If the player is in liquid, draw a semi-transparent overlay.
 614         // - Do not if player is in third person mode
 615         const ContentFeatures& features = m_nodedef->get(n);
 616         video::SColor post_effect_color = features.post_effect_color;
 617         if(features.solidness == 2 && !(g_settings->getBool("noclip") &&
 618                         m_client->checkLocalPrivilege("noclip")) &&
 619                         cam_mode == CAMERA_MODE_FIRST)
 620         {
 621                 post_effect_color = video::SColor(255, 0, 0, 0);
 622         }
 623         if (post_effect_color.getAlpha() != 0)
 624         {
 625                 // Draw a full-screen rectangle
 626                 video::IVideoDriver* driver = SceneManager->getVideoDriver();
 627                 v2u32 ss = driver->getScreenSize();
 628                 core::rect<s32> rect(0,0, ss.X, ss.Y);
 629                 driver->draw2DRectangle(post_effect_color, rect);
 630         }
 631 }
 632
 633 void ClientMap::PrintInfo(std::ostream &out)
 634 {
 635         out<<"ClientMap: ";
 636 }
 637
 638 void ClientMap::renderMapShadows(video::IVideoDriver *driver,
 639                 const video::SMaterial &material, s32 pass)
 640 {
 641         bool is_transparent_pass = pass != scene::ESNRP_SOLID;
 642         std::string prefix;
 643         if (is_transparent_pass)
 644                 prefix = "renderMap(SHADOW TRANS): ";
 645         else
 646                 prefix = "renderMap(SHADOW SOLID): ";
 647
 648         u32 drawcall_count = 0;
 649         u32 vertex_count = 0;
 650
 651         MeshBufListList drawbufs;
 652
 653         for (auto &i : m_drawlist_shadow) {
 654                 v3s16 block_pos = i.first;
 655                 MapBlock *block = i.second;
 656
 657                 // If the mesh of the block happened to get deleted, ignore it
 658                 if (!block->mesh)
 659                         continue;
 660
 661                 /*
 662                         Get the meshbuffers of the block
 663                 */
 664                 {
 665                         MapBlockMesh *mapBlockMesh = block->mesh;
 666                         assert(mapBlockMesh);
 667
 668                         for (int layer = 0; layer < MAX_TILE_LAYERS; layer++) {
 669                                 scene::IMesh *mesh = mapBlockMesh->getMesh(layer);
 670                                 assert(mesh);
 671
 672                                 u32 c = mesh->getMeshBufferCount();
 673                                 for (u32 i = 0; i < c; i++) {
 674                                         scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
 675
 676                                         video::SMaterial &mat = buf->getMaterial();
 677                                         auto rnd = driver->getMaterialRenderer(mat.MaterialType);
 678                                         bool transparent = rnd && rnd->isTransparent();
 679                                         if (transparent == is_transparent_pass)
 680                                                 drawbufs.add(buf, block_pos, layer);
 681                                 }
 682                         }
 683                 }
 684         }
 685
 686         TimeTaker draw("Drawing shadow mesh buffers");
 687
 688         core::matrix4 m; // Model matrix
 689         v3f offset = intToFloat(m_camera_offset, BS);
 690
 691         // Render all layers in order
 692         for (auto &lists : drawbufs.lists) {
 693                 for (MeshBufList &list : lists) {
 694                         // Check and abort if the machine is swapping a lot
 695                         if (draw.getTimerTime() > 1000) {
 696                                 infostream << "ClientMap::renderMapShadows(): Rendering "
 697                                                 "took >1s, returning." << std::endl;
 698                                 break;
 699                         }
 700                         for (auto &pair : list.bufs) {
 701                                 scene::IMeshBuffer *buf = pair.second;
 702
 703                                 // override some material properties
 704                                 video::SMaterial local_material = buf->getMaterial();
 705                                 local_material.MaterialType = material.MaterialType;
 706                                 local_material.BackfaceCulling = material.BackfaceCulling;
 707                                 local_material.FrontfaceCulling = material.FrontfaceCulling;
 708                                 local_material.Lighting = false;
 709                                 driver->setMaterial(local_material);
 710
 711                                 v3f block_wpos = intToFloat(pair.first * MAP_BLOCKSIZE, BS);
 712                                 m.setTranslation(block_wpos - offset);
 713
 714                                 driver->setTransform(video::ETS_WORLD, m);
 715                                 driver->drawMeshBuffer(buf);
 716                                 vertex_count += buf->getVertexCount();
 717                         }
 718
 719                         drawcall_count += list.bufs.size();
 720                 }
 721         }
 722
 723         g_profiler->avg(prefix + "draw meshes [ms]", draw.stop(true));
 724         g_profiler->avg(prefix + "vertices drawn [#]", vertex_count);
 725         g_profiler->avg(prefix + "drawcalls [#]", drawcall_count);
 726 }
 727
 728 /*
 729         Custom update draw list for the pov of shadow light.
 730 */
 731 void ClientMap::updateDrawListShadow(const v3f &shadow_light_pos, const v3f &shadow_light_dir, float shadow_range)
 732 {
 733         ScopeProfiler sp(g_profiler, "CM::updateDrawListShadow()", SPT_AVG);
 734
 735         const v3f camera_position = shadow_light_pos;
 736         const v3f camera_direction = shadow_light_dir;
 737         // I "fake" fov just to avoid creating a new function to handle orthographic
 738         // projection.
 739         const f32 camera_fov = m_camera_fov * 1.9f;
 740
 741         v3s16 cam_pos_nodes = floatToInt(camera_position, BS);
 742         v3s16 p_blocks_min;
 743         v3s16 p_blocks_max;
 744         getBlocksInViewRange(cam_pos_nodes, &p_blocks_min, &p_blocks_max, shadow_range);
 745
 746         std::vector<v2s16> blocks_in_range;
 747
 748         for (auto &i : m_drawlist_shadow) {
 749                 MapBlock *block = i.second;
 750                 block->refDrop();
 751         }
 752         m_drawlist_shadow.clear();
 753
 754         // We need to append the blocks from the camera POV because sometimes
 755         // they are not inside the light frustum and it creates glitches.
 756         // FIXME: This could be removed if we figure out why they are missing
 757         // from the light frustum.
 758         for (auto &i : m_drawlist) {
 759                 i.second->refGrab();
 760                 m_drawlist_shadow[i.first] = i.second;
 761         }
 762
 763         // Number of blocks currently loaded by the client
 764         u32 blocks_loaded = 0;
 765         // Number of blocks with mesh in rendering range
 766         u32 blocks_in_range_with_mesh = 0;
 767         // Number of blocks occlusion culled
 768         u32 blocks_occlusion_culled = 0;
 769
 770         for (auto &sector_it : m_sectors) {
 771                 MapSector *sector = sector_it.second;
 772                 if (!sector)
 773                         continue;
 774                 blocks_loaded += sector->size();
 775
 776                 MapBlockVect sectorblocks;
 777                 sector->getBlocks(sectorblocks);
 778
 779                 /*
 780                         Loop through blocks in sector
 781                 */
 782                 for (MapBlock *block : sectorblocks) {
 783                         if (!block->mesh) {
 784                                 // Ignore if mesh doesn't exist
 785                                 continue;
 786                         }
 787
 788                         float range = shadow_range;
 789
 790                         float d = 0.0;
 791                         if (!isBlockInSight(block->getPos(), camera_position,
 792                                             camera_direction, camera_fov, range, &d))
 793                                 continue;
 794
 795                         blocks_in_range_with_mesh++;
 796
 797                         /*
 798                                 Occlusion culling
 799                         */
 800                         if (isBlockOccluded(block, cam_pos_nodes)) {
 801                                 blocks_occlusion_culled++;
 802                                 continue;
 803                         }
 804
 805                         // This block is in range. Reset usage timer.
 806                         block->resetUsageTimer();
 807
 808                         // Add to set
 809                         if (m_drawlist_shadow.find(block->getPos()) == m_drawlist_shadow.end()) {
 810                                 block->refGrab();
 811                                 m_drawlist_shadow[block->getPos()] = block;
 812                         }
 813                 }
 814         }
 815
 816         g_profiler->avg("SHADOW MapBlock meshes in range [#]", blocks_in_range_with_mesh);
 817         g_profiler->avg("SHADOW MapBlocks occlusion culled [#]", blocks_occlusion_culled);
 818         g_profiler->avg("SHADOW MapBlocks drawn [#]", m_drawlist_shadow.size());
 819         g_profiler->avg("SHADOW MapBlocks loaded [#]", blocks_loaded);
 820 }