world.h

   1 #include "common.h"
   2
   3 static int ray_world( v3f pos, v3f dir, ray_hit *hit );
   4
   5 #ifndef WORLD_H
   6 #define WORLD_H
   7
   8 #include "scene.h"
   9 #include "terrain.h"
  10 #include "render.h"
  11 #include "water.h"
  12 #include "rigidbody.h"
  13 #include "gate.h"
  14 #include "bvh.h"
  15 #include "lighting.h"
  16 #include "model.h"
  17
  18 #include "traffic.h" /*TODO: -> world_traffic.h */
  19 #include "world_routes.h"
  20 #include "world_sfd.h"
  21 #include "world_audio.h"
  22
  23 #include "shaders/terrain.h"
  24 #include "shaders/sky.h"
  25 #include "shaders/planeinf.h"
  26 #include "shaders/standard.h"
  27 #include "shaders/vblend.h"
  28 #include "shaders/gpos.h"
  29 #include "shaders/fscolour.h"
  30 #include "shaders/alphatest.h"
  31
  32 static struct gworld
  33 {
  34    /* gameplay */
  35    struct respawn_point
  36    {
  37       v3f co;
  38       v4f q;
  39       char name[32];
  40    }
  41    spawns[32];
  42    u32 spawn_count;
  43
  44    struct subworld_routes routes;
  45    struct subworld_sfd sfd;
  46
  47    /* ...
  48    struct subworld_spawns system_spawns;
  49    struct subworld_physics system_physics;
  50    */
  51
  52    /* Paths */
  53    traffic_node traffic[128];
  54    u32 traffic_count;
  55
  56 #if 0
  57    traffic_driver van_man[6];
  58 #endif
  59
  60    /* Physics */
  61
  62    /* Rendering & geometry */
  63    scene geo, foliage;
  64    rigidbody rb_geo;
  65
  66    /* TODO Maybe make this less hardcoded */
  67    mdl_submesh sm_geo_std_oob, sm_geo_std, sm_geo_vb,
  68                sm_foliage_main, sm_foliage_alphatest,
  69                sm_graffiti, sm_subworld, sm_terrain;
  70
  71    glmesh skybox, skydome;
  72    mdl_submesh dome_upper, dome_lower;
  73
  74    glmesh cars;
  75    mdl_submesh car_holden;
  76
  77    rigidbody mr_ball;
  78
  79    /* Load time */
  80
  81    struct instance_cache
  82    {
  83       mdl_header *mdl;
  84       u32 pstr_file;
  85    }
  86    * instance_cache;
  87    u32 instance_cache_count,
  88        instance_cache_cap;
  89 }
  90 world;
  91
  92 static struct subworld_routes *subworld_routes(void) { return &world.routes; }
  93 static struct subworld_sfd *subworld_sfd(void) { return &world.sfd; }
  94
  95
  96 vg_tex2d tex_terrain_colours = { .path = "textures/gradients.qoi",
  97                                  .flags = VG_TEXTURE_CLAMP|VG_TEXTURE_NEAREST };
  98
  99 vg_tex2d tex_terrain_noise = { .path = "textures/garbage.qoi",
 100                                  .flags = VG_TEXTURE_NEAREST };
 101
 102 vg_tex2d tex_alphatest = { .path = "textures/alphatest.qoi",
 103                                  .flags = VG_TEXTURE_NEAREST };
 104
 105 vg_tex2d tex_graffiti = { .path = "textures/graffitibox.qoi",
 106                                  .flags = VG_TEXTURE_NEAREST };
 107
 108 static void ray_world_get_tri( ray_hit *hit, v3f tri[3] )
 109 {
 110    for( int i=0; i<3; i++ )
 111       v3_copy( world.geo.verts[ hit->tri[i] ].co, tri[i] );
 112 }
 113
 114 static int ray_world( v3f pos, v3f dir, ray_hit *hit )
 115 {
 116    return scene_raycast( &world.geo, pos, dir, hit );
 117 }
 118
 119 static int ray_hit_is_terrain( ray_hit *hit )
 120 {
 121    u32 valid_start = 0,
 122        valid_end   = world.sm_terrain.vertex_count;
 123
 124    return (hit->tri[0] >= valid_start) &&
 125           (hit->tri[0]  < valid_end);
 126 }
 127
 128 static int ray_hit_is_ramp( ray_hit *hit )
 129 {
 130    u32 valid_start = world.sm_geo_std.vertex_start,
 131        valid_end   = world.sm_geo_vb.vertex_start;
 132
 133    return (hit->tri[0] >= valid_start) &&
 134           (hit->tri[0]  < valid_end);
 135 }
 136
 137 static void world_register(void)
 138 {
 139    shader_terrain_register();
 140    shader_sky_register();
 141    shader_planeinf_register();
 142    shader_gpos_register();
 143    shader_fscolour_register();
 144    shader_alphatest_register();
 145
 146    world_routes_register();
 147    world_sfd_register();
 148 }
 149
 150 static void world_free(void)
 151 {
 152    /* TODO.. */
 153
 154    world_sfd_free();
 155 }
 156
 157 static void render_world_depth( m4x4f projection, m4x3f camera );
 158
 159 static void add_all_if_material( m4x3f transform, scene *pscene,
 160                                  mdl_header *mdl, u32 id )
 161 {
 162    for( int i=0; i<mdl->node_count; i++ )
 163    {
 164       mdl_node *pnode = mdl_node_from_id( mdl, i );
 165
 166       for( int j=0; j<pnode->submesh_count; j++ )
 167       {
 168          mdl_submesh *sm = mdl_node_submesh( mdl, pnode, j );
 169
 170          if( sm->material_id == id )
 171          {
 172             m4x3f transform2;
 173             mdl_node_transform( pnode, transform2 );
 174             m4x3_mul( transform, transform2, transform2 );
 175
 176             scene_add_submesh( pscene, mdl, sm, transform2 );
 177          }
 178       }
 179
 180       if( pnode->classtype == k_classtype_instance )
 181       {
 182          if( pnode->sub_uid )
 183          {
 184             u32 instance_id = pnode->sub_uid -1;
 185             struct instance_cache *cache = &world.instance_cache[instance_id];
 186             mdl_header *mdl2 = cache->mdl;
 187
 188             m4x3f transform2;
 189             mdl_node_transform( pnode, transform2 );
 190             m4x3_mul( transform, transform2, transform2 );
 191
 192             add_all_if_material( transform2, pscene, mdl2, id );
 193          }
 194       }
 195    }
 196 }
 197
 198 static void world_apply_procedural_foliage(void)
 199 {
 200    mdl_header *mfoliage = mdl_load("models/rs_foliage.mdl");
 201
 202    v3f volume;
 203    v3_sub( world.geo.bbx[1], world.geo.bbx[0], volume );
 204    volume[1] = 1.0f;
 205
 206    m4x3f transform;
 207    mdl_node *mblob = mdl_node_from_name( mfoliage, "blob" );
 208    mdl_submesh *sm_blob = mdl_node_submesh( mfoliage, mblob, 0 );
 209
 210    for( int i=0;i<100000;i++ )
 211    {
 212       v3f pos;
 213       v3_mul( volume, (v3f){ vg_randf(), 1000.0f, vg_randf() }, pos );
 214       pos[1] = 1000.0f;
 215       v3_add( pos, world.geo.bbx[0], pos );
 216
 217       ray_hit hit;
 218       hit.dist = INFINITY;
 219
 220       if( ray_world( pos, (v3f){0.0f,-1.0f,0.0f}, &hit ))
 221       {
 222          if( (hit.normal[1] > 0.8f) && ray_hit_is_terrain(&hit) &&
 223              (hit.pos[1] > water_height()+10.0f) )
 224          {
 225             v4f qsurface, qrandom;
 226             v3f axis;
 227
 228             v3_cross( (v3f){0.0f,1.0f,0.0f}, hit.normal, axis );
 229
 230             float angle = v3_dot(hit.normal,(v3f){0.0f,1.0f,0.0f});
 231             q_axis_angle( qsurface, axis, angle );
 232             q_axis_angle( qrandom, (v3f){0.0f,1.0f,0.0f}, vg_randf()*VG_TAUf );
 233             q_mul( qsurface, qrandom, qsurface );
 234             q_m3x3( qsurface, transform );
 235
 236             v3_copy( hit.pos, transform[3] );
 237             scene_add_submesh( &world.foliage, mfoliage, sm_blob, transform);
 238          }
 239       }
 240    }
 241    free( mfoliage );
 242 }
 243
 244 static void world_load(void)
 245 {
 246    mdl_header *mworld = mdl_load( "models/mp_dev.mdl" );
 247
 248    world.spawn_count = 0;
 249    world.traffic_count = 0;
 250    world.instance_cache = NULL;
 251
 252    /*
 253     * Process entities
 254     */
 255    for( int i=0; i<mworld->node_count; i++ )
 256    {
 257       mdl_node *pnode = mdl_node_from_id( mworld, i );
 258
 259       if( pnode->classtype == k_classtype_none )
 260       {}
 261       else if( pnode->classtype == k_classtype_spawn )
 262       {
 263          struct respawn_point *rp = &world.spawns[ world.spawn_count ++ ];
 264
 265          v3_copy( pnode->co, rp->co );
 266          v4_copy( pnode->q, rp->q );
 267          strcpy( rp->name, mdl_pstr( mworld, pnode->pstr_name ) );
 268       }
 269       else if( pnode->classtype == k_classtype_water )
 270       {
 271          if( wrender.enabled )
 272          {
 273             vg_warn( "Multiple water surfaces in level! ('%s')\n",
 274                   mdl_pstr( mworld, pnode->pstr_name ));
 275             continue;
 276          }
 277
 278          mdl_submesh *sm = mdl_node_submesh( mworld, pnode, 0 );
 279
 280          if( sm )
 281          {
 282             glmesh surf;
 283             mdl_unpack_submesh( mworld, &surf, sm );
 284             water_init();
 285             water_set_surface( &surf, pnode->co[1] );
 286          }
 287       }
 288       else if( pnode->classtype == k_classtype_car_path )
 289       {
 290          struct classtype_car_path *p = mdl_get_entdata( mworld, pnode );
 291          traffic_node *tn = &world.traffic[ world.traffic_count ];
 292          tn->mn_next = NULL;
 293          tn->mn_next1 = NULL;
 294
 295          if( p->target ) tn->mn_next = mdl_node_from_id( mworld, p->target );
 296          if( p->target1 ) tn->mn_next1 = mdl_node_from_id( mworld, p->target1 );
 297
 298          m4x3f transform;
 299          mdl_node_transform( pnode, transform );
 300          m3x3_mulv( transform, (v3f){1.0f,0.0f,0.0f}, tn->h );
 301          v3_copy( transform[3], tn->co );
 302
 303          pnode->sub_uid = world.traffic_count ++;
 304       }
 305       else if( pnode->classtype == k_classtype_instance )
 306       {
 307          struct classtype_instance *inst = mdl_get_entdata( mworld, pnode );
 308          pnode->sub_uid = 0;
 309
 310          int cached = 0;
 311          for( int i=0; i<world.instance_cache_count; i++ )
 312          {
 313             struct instance_cache *cache = &world.instance_cache[i];
 314             if( inst->pstr_file == cache->pstr_file )
 315             {
 316                cached = 1;
 317                pnode->sub_uid = i+1;
 318                break;
 319             }
 320          }
 321
 322          if( !cached )
 323          {
 324             world.instance_cache = buffer_reserve(
 325                             world.instance_cache, world.instance_cache_count,
 326                             &world.instance_cache_cap, 1,
 327                             sizeof(struct instance_cache) );
 328
 329             struct instance_cache *cache =
 330                &world.instance_cache[world.instance_cache_count];
 331
 332             const char *filename = mdl_pstr(mworld, inst->pstr_file);
 333
 334             cache->pstr_file = inst->pstr_file;
 335             cache->mdl = mdl_load( filename );
 336
 337             if( cache->mdl )
 338             {
 339                world.instance_cache_count ++;
 340                pnode->sub_uid = world.instance_cache_count;
 341                mdl_link_materials( mworld, cache->mdl );
 342                vg_success( "Cached %s\n", filename );
 343             }
 344             else
 345             {
 346                vg_warn( "Failed to cache %s\n", filename );
 347             }
 348          }
 349       }
 350    }
 351
 352    world.instance_cache = buffer_fix( world.instance_cache,
 353                                       world.instance_cache_count,
 354                                      &world.instance_cache_cap,
 355                                      sizeof( struct instance_cache ) );
 356
 357 #if 0
 358    traffic_finalize( world.traffic, world.traffic_count );
 359    for( int i=0; i<vg_list_size(world.van_man); i++ )
 360       world.van_man[i].current =&world.traffic[vg_randint(world.traffic_count)];
 361 #endif
 362
 363    /*
 364     * Compile meshes into the world scenes
 365     */
 366    scene_init( &world.geo );
 367
 368    u32 mat_surf = 0,
 369        mat_surf_oob = 0,
 370        mat_vertex_blend = 0,
 371        mat_alphatest = 0,
 372        mat_graffiti = 0,
 373        mat_subworld = 0,
 374        mat_terrain = 0;
 375
 376    for( int i=1; i<mworld->material_count; i++ )
 377    {
 378       mdl_material *mat = mdl_material_from_id( mworld, i );
 379       const char *mat_name = mdl_pstr( mworld, mat->pstr_name );
 380
 381       if( !strcmp( "surf", mat_name ))
 382          mat_surf = i;
 383       else if( !strcmp( "surf_oob", mat_name ))
 384          mat_surf_oob = i;
 385       else if( !strcmp( "vertex_blend", mat_name ))
 386          mat_vertex_blend = i;
 387       else if( !strcmp( "alphatest", mat_name ))
 388          mat_alphatest = i;
 389       else if( !strcmp( "graffitibox", mat_name ))
 390          mat_graffiti = i;
 391       else if( !strcmp( "terrain", mat_name ) )
 392          mat_terrain = i;
 393    }
 394
 395    m4x3f midentity;
 396    m4x3_identity( midentity );
 397
 398    if( mat_terrain )
 399       add_all_if_material( midentity, &world.geo, mworld, mat_terrain );
 400    scene_copy_slice( &world.geo, &world.sm_terrain );
 401
 402    if( mat_surf_oob )
 403       add_all_if_material( midentity, &world.geo, mworld, mat_surf_oob );
 404    else
 405       vg_warn( "No OOB surface\n" );
 406    scene_copy_slice( &world.geo, &world.sm_geo_std_oob );
 407
 408    if( mat_surf )
 409       add_all_if_material( midentity, &world.geo, mworld, mat_surf );
 410    scene_copy_slice( &world.geo, &world.sm_geo_std );
 411
 412    if( mat_vertex_blend )
 413       add_all_if_material( midentity, &world.geo, mworld, mat_vertex_blend );
 414    scene_copy_slice( &world.geo, &world.sm_geo_vb );
 415
 416    scene_upload( &world.geo );
 417    scene_bh_create( &world.geo );
 418
 419
 420    /* Foliage /nocollide layer.
 421     * TODO: Probably should have material traits for this
 422     */
 423    scene_init( &world.foliage );
 424
 425    world_apply_procedural_foliage();
 426    scene_copy_slice( &world.foliage, &world.sm_foliage_main );
 427
 428    add_all_if_material( midentity, &world.foliage, mworld, mat_alphatest );
 429    scene_copy_slice( &world.foliage, &world.sm_foliage_alphatest );
 430
 431    add_all_if_material( midentity, &world.foliage, mworld, mat_graffiti );
 432    scene_copy_slice( &world.foliage, &world.sm_graffiti );
 433
 434    scene_upload( &world.foliage );
 435    world_routes_loadfrom( mworld );
 436
 437    for( int i=0; i<world.instance_cache_count; i++ )
 438       free( world.instance_cache[i].mdl );
 439
 440    free( world.instance_cache );
 441    free( mworld );
 442
 443    /*
 444     * Rendering the depth map
 445     */
 446    m4x4f ortho;
 447    m4x3f camera;
 448
 449    v3f extent;
 450    v3_sub( world.geo.bbx[1], world.geo.bbx[0], extent );
 451
 452    float fl = world.geo.bbx[0][0],
 453          fr = world.geo.bbx[1][0],
 454          fb = world.geo.bbx[0][2],
 455          ft = world.geo.bbx[1][2],
 456          rl = 1.0f / (fr-fl),
 457          tb = 1.0f / (ft-fb);
 458
 459    m4x4_zero( ortho );
 460         ortho[0][0] = 2.0f * rl;
 461         ortho[2][1] = 2.0f * tb;
 462    ortho[3][0] = (fr + fl) * -rl;
 463    ortho[3][1] = (ft + fb) * -tb;
 464    ortho[3][3] = 1.0f;
 465    m4x3_identity( camera );
 466
 467    glViewport( 0, 0, 1024, 1024 );
 468    glDisable(GL_DEPTH_TEST);
 469    glBindFramebuffer( GL_FRAMEBUFFER, gpipeline.fb_depthmap );
 470    shader_fscolour_use();
 471    shader_fscolour_uColour( (v4f){-9999.0f,-9999.0f,-9999.0f,-9999.0f} );
 472    render_fsquad();
 473
 474    glEnable(GL_BLEND);
 475    glBlendFunc(GL_ONE, GL_ONE);
 476    glBlendEquation(GL_MAX);
 477    render_world_depth( ortho, camera );
 478    glDisable(GL_BLEND);
 479    glEnable(GL_DEPTH_TEST);
 480
 481    /*
 482     * TODO: World settings entity
 483     */
 484    struct ub_world_lighting *winfo = &gpipeline.ub_world_lighting;
 485    v4_copy( wrender.plane, winfo->g_water_plane );
 486
 487    v4f bounds;
 488    bounds[0] = world.geo.bbx[0][0];
 489    bounds[1] = world.geo.bbx[0][2];
 490    bounds[2] = 1.0f/ (world.geo.bbx[1][0]-world.geo.bbx[0][0]);
 491    bounds[3] = 1.0f/ (world.geo.bbx[1][2]-world.geo.bbx[0][2]);
 492    v4_copy( bounds, winfo->g_depth_bounds );
 493
 494    winfo->g_water_fog = 0.04f;
 495    render_update_lighting_ub();
 496
 497
 498    world.mr_ball.type = k_rb_shape_sphere;
 499    world.mr_ball.inf.sphere.radius = 2.0f;
 500    v3_copy( (v3f){ 0.0f, 110.0f, 0.0f }, world.mr_ball.co );
 501
 502    q_identity(world.mr_ball.q);
 503    rb_init( &world.mr_ball );
 504
 505    /*
 506     * Setup scene collider
 507     */
 508    v3_zero( world.rb_geo.co );
 509    q_identity( world.rb_geo.q );
 510
 511    world.rb_geo.type = k_rb_shape_scene;
 512    world.rb_geo.inf.scene.pscene = &world.geo;
 513    world.rb_geo.is_world = 1;
 514    rb_init( &world.rb_geo );
 515 }
 516
 517 static void world_init(void)
 518 {
 519    vg_tex2d_init( (vg_tex2d *[]){ &tex_terrain_colours,
 520                                   &tex_terrain_noise,
 521                                   &tex_alphatest,
 522                                   &tex_graffiti }, 4 );
 523
 524    mdl_header *mcars = mdl_load( "models/rs_cars.mdl" );
 525    mdl_unpack_glmesh( mcars, &world.cars );
 526    mdl_node *nholden = mdl_node_from_name( mcars, "holden" );
 527    world.car_holden = *mdl_node_submesh( mcars, nholden, 0 );
 528    free(mcars);
 529
 530
 531    mdl_header *msky = mdl_load("models/rs_skydome.mdl");
 532    mdl_unpack_glmesh( msky, &world.skydome );
 533
 534    mdl_node *nlower = mdl_node_from_name( msky, "dome_lower" ),
 535             *nupper = mdl_node_from_name( msky, "dome_upper" );
 536
 537    world.dome_lower = *mdl_node_submesh( msky, nlower, 0 );
 538    world.dome_upper = *mdl_node_submesh( msky, nupper, 0 );
 539    free(msky);
 540
 541
 542    /* Other systems */
 543    world_sfd_init();
 544    world_audio_init();
 545 }
 546
 547 static void world_update(void)
 548 {
 549    world_routes_update();
 550    world_routes_debug();
 551    sfd_update( &world.sfd.tester );
 552
 553 #if 0
 554    rb_solver_reset();
 555    rb_build_manifold_terrain_sphere( &world.mr_ball );
 556
 557    for( int i=0; i<5; i++ )
 558       rb_solve_contacts( rb_contact_buffer, rb_contact_count );
 559
 560    rb_iter( &world.mr_ball );
 561    rb_update_transform( &world.mr_ball );
 562    rb_debug( &world.mr_ball, 0 );
 563
 564    for( int i=0; i<vg_list_size(world.van_man); i++ )
 565    {
 566       traffic_drive( &world.van_man[i] );
 567       traffic_visualize_car( &world.van_man[i] );
 568    }
 569 #endif
 570 }
 571
 572 /*
 573  * Rendering
 574  */
 575
 576 static void bind_terrain_textures(void)
 577 {
 578    vg_tex2d_bind( &tex_terrain_noise, 0 );
 579    vg_tex2d_bind( &tex_terrain_colours, 1 );
 580 }
 581
 582 static void render_world_vb( m4x4f projection, v3f camera )
 583 {
 584    m4x3f identity_matrix;
 585    m4x3_identity( identity_matrix );
 586
 587    shader_vblend_use();
 588    shader_vblend_uTexGarbage(0);
 589    shader_vblend_uTexGradients(1);
 590    shader_link_standard_ub( _shader_vblend.id, 2 );
 591    bind_terrain_textures();
 592
 593    shader_vblend_uPv( projection );
 594    shader_vblend_uMdl( identity_matrix );
 595    shader_vblend_uCamera( camera );
 596
 597    scene_bind( &world.geo );
 598    mdl_draw_submesh( &world.sm_geo_vb );
 599
 600    mesh_bind( &world.cars );
 601
 602 #if 0
 603    for( int i=0; i<vg_list_size(world.van_man); i++ )
 604    {
 605       shader_vblend_uMdl( world.van_man[i].transform );
 606       mdl_draw_submesh( &world.car_holden );
 607    }
 608 #endif
 609 }
 610
 611 static void render_world_alphatest( m4x4f projection, v3f camera )
 612 {
 613    m4x3f identity_matrix;
 614    m4x3_identity( identity_matrix );
 615
 616    shader_alphatest_use();
 617    shader_alphatest_uTexGarbage(0);
 618    shader_alphatest_uTexMain(1);
 619    shader_link_standard_ub( _shader_alphatest.id, 2 );
 620
 621    vg_tex2d_bind( &tex_terrain_noise, 0 );
 622    vg_tex2d_bind( &tex_alphatest, 1 );
 623
 624    shader_alphatest_uPv( projection );
 625    shader_alphatest_uMdl( identity_matrix );
 626    shader_alphatest_uCamera( camera );
 627
 628    glDisable(GL_CULL_FACE);
 629    scene_bind( &world.foliage );
 630    mdl_draw_submesh( &world.sm_foliage_alphatest );
 631
 632    vg_tex2d_bind( &tex_graffiti, 1 );
 633    mdl_draw_submesh( &world.sm_graffiti );
 634
 635    glEnable(GL_CULL_FACE);
 636 }
 637
 638 static void render_terrain( m4x4f projection, v3f camera )
 639 {
 640    m4x3f identity_matrix;
 641    m4x3_identity( identity_matrix );
 642
 643    shader_terrain_use();
 644    shader_terrain_uTexGarbage(0);
 645    shader_terrain_uTexGradients(1);
 646    shader_link_standard_ub( _shader_terrain.id, 2 );
 647    bind_terrain_textures();
 648
 649    shader_terrain_uPv( projection );
 650    shader_terrain_uMdl( identity_matrix );
 651    shader_terrain_uCamera( camera );
 652
 653    scene_bind( &world.geo );
 654    mdl_draw_submesh( &world.sm_terrain );
 655    mdl_draw_submesh( &world.sm_geo_std_oob );
 656    mdl_draw_submesh( &world.sm_geo_std );
 657    mdl_draw_submesh( &world.sm_subworld );
 658
 659    /* TODO: Dont draw in reflection */
 660    glDisable(GL_CULL_FACE);
 661    scene_bind( &world.foliage );
 662    mdl_draw_submesh( &world.sm_foliage_main );
 663    glEnable(GL_CULL_FACE);
 664 }
 665
 666 static void render_lowerdome( m4x3f camera )
 667 {
 668    m4x4f projection, full;
 669    pipeline_projection( projection, 0.4f, 1000.0f );
 670
 671    m4x3f inverse;
 672    m3x3_transpose( camera, inverse );
 673    v3_copy((v3f){0.0f,0.0f,0.0f}, inverse[3]);
 674    m4x3_expand( inverse, full );
 675    m4x4_mul( projection, full, full );
 676
 677    m4x3f identity_matrix;
 678    m4x3_identity( identity_matrix );
 679
 680    shader_planeinf_use();
 681    shader_planeinf_uMdl(identity_matrix);
 682    shader_planeinf_uPv(full);
 683    shader_planeinf_uCamera(camera[3]);
 684    shader_planeinf_uPlane( (v4f){0.0f,1.0f,0.0f, water_height()} );
 685
 686    mdl_draw_submesh( &world.dome_lower );
 687 }
 688
 689 static void render_sky(m4x3f camera)
 690 {
 691    m4x4f projection, full;
 692    pipeline_projection( projection, 0.4f, 1000.0f );
 693
 694    m4x3f inverse;
 695    m3x3_transpose( camera, inverse );
 696    v3_copy((v3f){0.0f,0.0f,0.0f}, inverse[3]);
 697    m4x3_expand( inverse, full );
 698    m4x4_mul( projection, full, full );
 699
 700    m4x3f identity_matrix;
 701    m4x3_identity( identity_matrix );
 702
 703    shader_sky_use();
 704    shader_sky_uMdl(identity_matrix);
 705    shader_sky_uPv(full);
 706    shader_sky_uTexGarbage(0);
 707    shader_sky_uTime( vg_time );
 708
 709    vg_tex2d_bind( &tex_terrain_noise, 0 );
 710
 711    glDepthMask( GL_FALSE );
 712    glDisable( GL_DEPTH_TEST );
 713
 714    mesh_bind( &world.skydome );
 715    mdl_draw_submesh( &world.dome_upper );
 716
 717    glEnable( GL_DEPTH_TEST );
 718    glDepthMask( GL_TRUE );
 719 }
 720
 721 static void render_world_gates( m4x4f projection, m4x3f camera )
 722 {
 723    float closest = INFINITY;
 724    int   id = 0;
 725
 726    for( int i=0; i<world.routes.gate_count; i++ )
 727    {
 728       struct route_gate *rg = &world.routes.gates[i];
 729       float dist = v3_dist2( rg->gate.co[0], camera[3] );
 730
 731       if( dist < closest )
 732       {
 733          closest = dist;
 734          id = i;
 735       }
 736    }
 737
 738    render_gate( &world.routes.gates[id].gate, camera );
 739 }
 740
 741 static void render_world( m4x4f projection, m4x3f camera )
 742 {
 743    render_sky( camera );
 744    render_world_routes( projection, camera[3] );
 745    render_world_vb( projection, camera[3] );
 746    render_world_alphatest( projection, camera[3] );
 747    render_terrain( projection, camera[3] );
 748
 749    m4x3f identity_matrix;
 750    m4x3_identity( identity_matrix );
 751    identity_matrix[3][1] = 125.0f;
 752
 753    v4f t;
 754    q_axis_angle( t, (v3f){0.0f,1.0f,0.0f}, 2.3f );
 755    q_m3x3( t, identity_matrix );
 756
 757    //sfd_render( &world.sfd.tester, projection, camera[3], identity_matrix );
 758 }
 759
 760 static void render_world_depth( m4x4f projection, m4x3f camera )
 761 {
 762    m4x3f identity_matrix;
 763    m4x3_identity( identity_matrix );
 764
 765    shader_gpos_use();
 766    shader_gpos_uCamera( camera[3] );
 767    shader_gpos_uPv( projection );
 768    shader_gpos_uMdl( identity_matrix );
 769
 770    scene_bind( &world.geo );
 771    scene_draw( &world.geo );
 772
 773 #if 0
 774    glDisable(GL_CULL_FACE);
 775    scene_bind( &world.foliage );
 776    scene_draw( &world.foliage );
 777    glEnable(GL_CULL_FACE);
 778 #endif
 779 }
 780
 781 #endif /* WORLD_H */