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