world_render.c

   1 /*
   2  * Copyright (C) 2021-2023 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #ifndef WORLD_RENDER_C
   6 #define WORLD_RENDER_C
   7
   8 #include "world.h"
   9 #include "world_render.h"
  10
  11 static int ccmd_set_time( int argc, const char *argv[] ){
  12    if( argc == 1 ){
  13       world_instance *world = world_current_instance();
  14       world->time = atof( argv[0] );
  15    }
  16    else {
  17       vg_error( "Usage set_time <0-1.0>\n" );
  18    }
  19    return 0;
  20 }
  21
  22 VG_STATIC void async_world_render_init( void *payload, u32 size )
  23 {
  24    vg_info( "Allocate uniform buffers\n" );
  25    for( int i=0; i<4; i++ ){
  26       world_instance *world = &world_static.worlds[i];
  27       world->ubo_bind_point = i;
  28
  29       glGenBuffers( 1, &world->ubo_lighting );
  30       glBindBuffer( GL_UNIFORM_BUFFER, world->ubo_lighting );
  31       glBufferData( GL_UNIFORM_BUFFER, sizeof(struct ub_world_lighting),
  32                     NULL, GL_DYNAMIC_DRAW );
  33
  34       glBindBufferBase( GL_UNIFORM_BUFFER, i, world->ubo_lighting );
  35       VG_CHECK_GL_ERR();
  36    }
  37
  38    vg_info( "Allocate frame buffers\n" );
  39    for( int i=0; i<4; i++ ){
  40       world_instance *world = &world_static.worlds[i];
  41       struct framebuffer *fb = &world->heightmap;
  42
  43       fb->display_name = NULL;
  44       fb->link = NULL;
  45       fb->fixed_w = 1024;
  46       fb->fixed_h = 1024;
  47       fb->resolution_div = 0;
  48
  49       fb->attachments[0].display_name     = NULL;
  50       fb->attachments[0].purpose = k_framebuffer_attachment_type_texture;
  51       fb->attachments[0].internalformat   = GL_RG16F;
  52       fb->attachments[0].format           = GL_RG;
  53       fb->attachments[0].type             = GL_FLOAT;
  54       fb->attachments[0].attachment       = GL_COLOR_ATTACHMENT0;
  55
  56       fb->attachments[1].purpose = k_framebuffer_attachment_type_none;
  57       fb->attachments[2].purpose = k_framebuffer_attachment_type_none;
  58       fb->attachments[3].purpose = k_framebuffer_attachment_type_none;
  59       fb->attachments[4].purpose = k_framebuffer_attachment_type_none;
  60
  61       render_fb_allocate( fb );
  62    }
  63 }
  64
  65 VG_STATIC void world_render_init(void)
  66 {
  67    VG_VAR_F32( k_day_length );
  68    VG_VAR_I32( k_debug_light_indices );
  69    VG_VAR_I32( k_debug_light_complexity );
  70    VG_VAR_I32( k_light_preview );
  71    vg_console_reg_cmd( "set_time", ccmd_set_time, NULL );
  72
  73    world_render.sky_rate = 1.0;
  74    world_render.sky_target_rate = 1.0;
  75
  76    shader_scene_standard_register();
  77    shader_scene_standard_alphatest_register();
  78    shader_scene_fxglow_register();
  79    shader_scene_vertex_blend_register();
  80    shader_scene_terrain_register();
  81    shader_scene_depth_register();
  82    shader_scene_position_register();
  83    shader_model_sky_register();
  84
  85    vg_info( "Loading world resources\n" );
  86    vg_linear_clear( vg_mem.scratch );
  87
  88    mdl_context msky;
  89    mdl_open( &msky, "models/rs_skydome.mdl", vg_mem.scratch );
  90    mdl_load_metadata_block( &msky, vg_mem.scratch );
  91    mdl_async_load_glmesh( &msky, &world_render.skydome );
  92    mdl_close( &msky );
  93
  94    vg_info( "Loading default world textures\n" );
  95    vg_tex2d_load_qoi_async_file( "textures/garbage.qoi",
  96                                  VG_TEX2D_NEAREST|VG_TEX2D_REPEAT,
  97                                  &world_render.tex_terrain_noise );
  98
  99    vg_async_call( async_world_render_init, NULL, 0 );
 100 }
 101
 102 VG_STATIC void world_link_lighting_ub( world_instance *world, GLuint shader )
 103 {
 104    GLuint idx = glGetUniformBlockIndex( shader, "ub_world_lighting" );
 105    glUniformBlockBinding( shader, idx, world->ubo_bind_point );
 106 }
 107
 108 VG_STATIC void world_bind_position_texture( world_instance *world,
 109                                             GLuint shader, GLuint location,
 110                                             int slot )
 111 {
 112    render_fb_bind_texture( &world->heightmap, 0, slot );
 113    glUniform1i( location, slot );
 114 }
 115
 116 VG_STATIC void world_bind_light_array( world_instance *world,
 117                                        GLuint shader, GLuint location,
 118                                        int slot )
 119 {
 120    glActiveTexture( GL_TEXTURE0 + slot );
 121    glBindTexture( GL_TEXTURE_BUFFER, world->tex_light_entities );
 122    glUniform1i( location, slot );
 123 }
 124
 125 VG_STATIC void world_bind_light_index( world_instance *world,
 126                                        GLuint shader, GLuint location,
 127                                        int slot )
 128 {
 129    glActiveTexture( GL_TEXTURE0 + slot );
 130    glBindTexture( GL_TEXTURE_3D, world->tex_light_cubes );
 131    glUniform1i( location, slot );
 132 }
 133
 134 VG_STATIC void render_world_depth( world_instance *world, camera *cam );
 135
 136 /*
 137  * Rendering
 138  */
 139
 140 VG_STATIC void bind_terrain_noise(void)
 141 {
 142    glActiveTexture( GL_TEXTURE0 );
 143    glBindTexture( GL_TEXTURE_2D, world_render.tex_terrain_noise );
 144 }
 145
 146 struct world_pass{
 147    camera *cam;
 148    enum mdl_shader shader;
 149    enum world_geo_type geo_type;
 150
 151    void (*fn_bind_textures)( world_instance *world,
 152                              struct world_surface *mat );
 153    void (*fn_set_mdl)( m4x3f mdl );
 154    void (*fn_set_uPvmPrev)( m4x4f pvm );
 155 };
 156
 157 VG_STATIC
 158 void world_render_traffic( world_instance *world, u32 material_id,
 159                            struct world_pass *pass ){
 160    if( !mdl_arrcount( &world->ent_traffic ) ) return;
 161
 162    /* HACK: use the first material for every traffic entity */
 163    ent_traffic *first = mdl_arritm( &world->ent_traffic, 0 );
 164    if( !first->submesh_count ) return;
 165
 166    mdl_submesh *sm = mdl_arritm( &world->meta.submeshs, first->submesh_start );
 167    if( sm->material_id != material_id ) return;
 168
 169    struct world_surface *mat = &world->surfaces[ material_id ];
 170    pass->fn_bind_textures( world, mat );
 171
 172    for( u32 j=0; j<mdl_arrcount( &world->ent_traffic ); j++ ){
 173       ent_traffic *traffic = mdl_arritm( &world->ent_traffic, j );
 174
 175       for( u32 k=0; k<traffic->submesh_count; k++ ){
 176          sm = mdl_arritm( &world->meta.submeshs,
 177                            traffic->submesh_start+k );
 178
 179          m4x3f mmdl;
 180          q_m3x3( traffic->transform.q, mmdl );
 181          v3_copy( traffic->transform.co, mmdl[3] );
 182
 183          m4x4f m4mdl;
 184          m4x3_expand( mmdl, m4mdl );
 185          m4x4_mul( pass->cam->mtx_prev.pv, m4mdl, m4mdl );
 186
 187          pass->fn_set_mdl( mmdl );
 188          pass->fn_set_uPvmPrev( m4mdl );
 189
 190          mdl_draw_submesh( sm );
 191       }
 192    }
 193 }
 194
 195 VG_STATIC
 196 void world_render_pass( world_instance *world, struct world_pass *pass ){
 197    for( int i=0; i<world->surface_count; i++ ){
 198       struct world_surface *mat = &world->surfaces[i];
 199
 200       if( mat->info.shader == pass->shader ){
 201          mdl_submesh *sm;
 202
 203          if( pass->geo_type == k_world_geo_type_solid ){
 204             sm = &mat->sm_geo;
 205          }
 206          else{
 207             world_render_traffic( world, i, pass );
 208             sm = &mat->sm_no_collide;
 209          }
 210
 211          if( !sm->indice_count )
 212             continue;
 213
 214          m4x3f mmdl;
 215          m4x3_identity( mmdl );
 216          pass->fn_set_mdl( mmdl );
 217          pass->fn_set_uPvmPrev( pass->cam->mtx_prev.pv );
 218
 219          pass->fn_bind_textures( world, mat );
 220          mdl_draw_submesh( sm );
 221       }
 222    }
 223 }
 224
 225 VG_STATIC
 226 void world_render_both_stages( world_instance *world, struct world_pass *pass )
 227 {
 228    mesh_bind( &world->mesh_geo );
 229    pass->geo_type = k_world_geo_type_solid;
 230    world_render_pass( world, pass );
 231
 232    glDisable( GL_CULL_FACE );
 233    mesh_bind( &world->mesh_no_collide );
 234    pass->geo_type = k_world_geo_type_nonsolid;
 235    world_render_pass( world, pass );
 236    glEnable( GL_CULL_FACE );
 237 }
 238
 239 VG_STATIC void bindpoint_diffuse_texture1( world_instance *world,
 240                                            struct world_surface *mat )
 241
 242 {
 243    glActiveTexture( GL_TEXTURE1 );
 244    glBindTexture( GL_TEXTURE_2D, world->textures[ mat->info.tex_diffuse ] );
 245 }
 246
 247 VG_STATIC void render_world_vb( world_instance *world, camera *cam )
 248 {
 249    shader_scene_vertex_blend_use();
 250    shader_scene_vertex_blend_uTexGarbage(0);
 251    shader_scene_vertex_blend_uTexGradients(1);
 252    world_link_lighting_ub( world, _shader_scene_vertex_blend.id );
 253    world_bind_position_texture( world, _shader_scene_vertex_blend.id,
 254                                 _uniform_scene_vertex_blend_g_world_depth, 2 );
 255    world_bind_light_array( world, _shader_scene_vertex_blend.id,
 256                                 _uniform_scene_vertex_blend_uLightsArray, 3 );
 257    world_bind_light_index( world, _shader_scene_vertex_blend.id,
 258                                 _uniform_scene_vertex_blend_uLightsIndex, 4 );
 259
 260    glActiveTexture( GL_TEXTURE0 );
 261    glBindTexture( GL_TEXTURE_2D, world_render.tex_terrain_noise );
 262
 263    shader_scene_vertex_blend_uPv( cam->mtx.pv );
 264    shader_scene_vertex_blend_uCamera( cam->transform[3] );
 265
 266    struct world_pass pass = {
 267       .shader = k_shader_standard_vertex_blend,
 268       .cam = cam,
 269       .fn_bind_textures = bindpoint_diffuse_texture1,
 270       .fn_set_mdl = shader_scene_vertex_blend_uMdl,
 271       .fn_set_uPvmPrev = shader_scene_vertex_blend_uPvmPrev,
 272    };
 273
 274    world_render_both_stages( world, &pass );
 275 }
 276
 277 VG_STATIC void render_world_standard( world_instance *world, camera *cam )
 278 {
 279    shader_scene_standard_use();
 280    shader_scene_standard_uTexGarbage(0);
 281    shader_scene_standard_uTexMain(1);
 282    shader_scene_standard_uPv( cam->mtx.pv );
 283
 284    world_link_lighting_ub( world, _shader_scene_standard.id );
 285    world_bind_position_texture( world, _shader_scene_standard.id,
 286                                 _uniform_scene_standard_g_world_depth, 2 );
 287    world_bind_light_array( world, _shader_scene_standard.id,
 288                                 _uniform_scene_standard_uLightsArray, 3 );
 289    world_bind_light_index( world, _shader_scene_standard.id,
 290                                 _uniform_scene_standard_uLightsIndex, 4 );
 291
 292    bind_terrain_noise();
 293    shader_scene_standard_uCamera( cam->transform[3] );
 294
 295    struct world_pass pass = {
 296       .shader = k_shader_standard,
 297       .cam = cam,
 298       .fn_bind_textures = bindpoint_diffuse_texture1,
 299       .fn_set_mdl = shader_scene_standard_uMdl,
 300       .fn_set_uPvmPrev = shader_scene_standard_uPvmPrev,
 301    };
 302
 303    world_render_both_stages( world, &pass );
 304 }
 305
 306 VG_STATIC void render_world_alphatest( world_instance *world, camera *cam )
 307 {
 308    shader_scene_standard_alphatest_use();
 309    shader_scene_standard_alphatest_uTexGarbage(0);
 310    shader_scene_standard_alphatest_uTexMain(1);
 311    shader_scene_standard_alphatest_uPv( cam->mtx.pv );
 312
 313    world_link_lighting_ub( world, _shader_scene_standard_alphatest.id );
 314    world_bind_position_texture( world, _shader_scene_standard_alphatest.id,
 315                         _uniform_scene_standard_alphatest_g_world_depth, 2 );
 316    world_bind_light_array( world, _shader_scene_standard_alphatest.id,
 317                         _uniform_scene_standard_alphatest_uLightsArray, 3 );
 318    world_bind_light_index( world, _shader_scene_standard_alphatest.id,
 319                            _uniform_scene_standard_alphatest_uLightsIndex, 4 );
 320
 321
 322    bind_terrain_noise();
 323
 324
 325    shader_scene_standard_alphatest_uCamera( cam->transform[3] );
 326
 327    glDisable(GL_CULL_FACE);
 328
 329    struct world_pass pass = {
 330       .shader = k_shader_standard_cutout,
 331       .cam = cam,
 332       .fn_bind_textures = bindpoint_diffuse_texture1,
 333       .fn_set_mdl = shader_scene_standard_alphatest_uMdl,
 334       .fn_set_uPvmPrev = shader_scene_standard_alphatest_uPvmPrev,
 335    };
 336
 337    world_render_both_stages( world, &pass );
 338
 339    glEnable(GL_CULL_FACE);
 340 }
 341
 342 VG_STATIC
 343 void world_render_challenges( world_instance *world, struct world_pass *pass,
 344                               v3f pos ){
 345    if( !world ) return;
 346
 347    glDisable( GL_CULL_FACE );
 348    mesh_bind( &world->mesh_no_collide );
 349
 350    u32 last_material = 0;
 351
 352    const f32 radius = 40.0f;
 353
 354    bh_iter it;
 355    bh_iter_init_range( 0, &it, pos, radius );
 356    i32 idx;
 357
 358    while( bh_next( world->entity_bh, &it, &idx ) ){
 359       u32 id    = world->entity_list[ idx ],
 360           type  = mdl_entity_id_type( id ),
 361           index = mdl_entity_id_id( id );
 362
 363       if( type != k_ent_challenge ) continue;
 364
 365       ent_challenge *challenge = mdl_arritm(&world->ent_challenge,index);
 366
 367       f32 dist = v3_dist( challenge->transform.co, pos ) * (1.0f/radius),
 368           scale = vg_smoothstepf( vg_clampf( 10.0f-dist*10.0f, 0.0f,1.0f ) );
 369
 370       v3_fill( challenge->transform.s, scale );
 371
 372       m4x3f mmdl;
 373       mdl_transform_m4x3( &challenge->transform, mmdl );
 374       shader_scene_fxglow_uMdl( mmdl );
 375
 376       for( u32 j=0; j<challenge->submesh_count; j++ ){
 377          mdl_submesh *sm = mdl_arritm( &world->meta.submeshs,
 378                                        challenge->submesh_start + j );
 379
 380          if( sm->material_id != last_material ){
 381             last_material = sm->material_id;
 382
 383             pass->fn_bind_textures( world, &world->surfaces[sm->material_id] );
 384          }
 385
 386          mdl_draw_submesh( sm );
 387       }
 388    }
 389 }
 390
 391 VG_STATIC void render_world_fxglow( world_instance *world, camera *cam ){
 392    //glDrawBuffers( 1, (GLenum[]){ GL_COLOR_ATTACHMENT0 } );
 393
 394    shader_scene_fxglow_use();
 395    shader_scene_fxglow_uTexMain(1);
 396    shader_scene_fxglow_uPv( cam->mtx.pv );
 397
 398    world_link_lighting_ub( world, _shader_scene_fxglow.id );
 399    world_bind_position_texture( world, _shader_scene_fxglow.id,
 400                         _uniform_scene_fxglow_g_world_depth, 2 );
 401    world_bind_light_array( world, _shader_scene_fxglow.id,
 402                         _uniform_scene_fxglow_uLightsArray, 3 );
 403    world_bind_light_index( world, _shader_scene_fxglow.id,
 404                            _uniform_scene_fxglow_uLightsIndex, 4 );
 405
 406    shader_scene_fxglow_uCamera( cam->transform[3] );
 407    glDisable(GL_CULL_FACE);
 408
 409    struct world_pass pass = {
 410       .shader = k_shader_fxglow,
 411       .cam = cam,
 412       .fn_bind_textures = bindpoint_diffuse_texture1,
 413       .fn_set_mdl = shader_scene_fxglow_uMdl,
 414       .fn_set_uPvmPrev = shader_scene_fxglow_uPvmPrev,
 415    };
 416
 417    world_render_both_stages( world, &pass );
 418    world_render_challenges( world, &pass, cam->pos );
 419
 420    glEnable(GL_CULL_FACE);
 421    //glDrawBuffers( 2, (GLenum[]){ GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1 } );
 422 }
 423
 424 VG_STATIC void bindpoint_terrain( world_instance *world,
 425                                   struct world_surface *mat )
 426 {
 427    glActiveTexture( GL_TEXTURE1 );
 428    glBindTexture( GL_TEXTURE_2D, world->textures[ mat->info.tex_diffuse ] );
 429
 430    shader_scene_terrain_uSandColour( mat->info.colour );
 431    shader_scene_terrain_uBlendOffset( mat->info.colour1 );
 432 }
 433
 434 VG_STATIC void render_terrain( world_instance *world, camera *cam )
 435 {
 436    shader_scene_terrain_use();
 437    shader_scene_terrain_uTexGarbage(0);
 438    shader_scene_terrain_uTexGradients(1);
 439
 440    world_link_lighting_ub( world, _shader_scene_terrain.id );
 441    world_bind_position_texture( world, _shader_scene_terrain.id,
 442                         _uniform_scene_terrain_g_world_depth, 2 );
 443    world_bind_light_array( world, _shader_scene_terrain.id,
 444                         _uniform_scene_terrain_uLightsArray, 3 );
 445    world_bind_light_index( world, _shader_scene_terrain.id,
 446                            _uniform_scene_terrain_uLightsIndex, 4 );
 447
 448    glActiveTexture( GL_TEXTURE0 );
 449    glBindTexture( GL_TEXTURE_2D, world_render.tex_terrain_noise );
 450
 451    shader_scene_terrain_uPv( cam->mtx.pv );
 452    shader_scene_terrain_uCamera( cam->transform[3] );
 453
 454    struct world_pass pass = {
 455       .shader = k_shader_terrain_blend,
 456       .cam = cam,
 457       .fn_bind_textures = bindpoint_terrain,
 458       .fn_set_mdl = shader_scene_terrain_uMdl,
 459       .fn_set_uPvmPrev = shader_scene_terrain_uPvmPrev,
 460    };
 461
 462    world_render_both_stages( world, &pass );
 463 }
 464
 465 VG_STATIC void render_sky( world_instance *world, camera *cam )
 466 {
 467    /*
 468     * Modify matrix to remove clipping and view translation
 469     */
 470    m4x4f v,
 471          v_prev,
 472          pv,
 473          pv_prev;
 474
 475    m4x4_copy( cam->mtx.v, v );
 476    m4x4_copy( cam->mtx_prev.v, v_prev );
 477    v3_zero( v[3] );
 478    v3_zero( v_prev[3] );
 479
 480    m4x4_copy( cam->mtx.p,      pv );
 481    m4x4_copy( cam->mtx_prev.p, pv_prev );
 482    m4x4_reset_clipping( pv,      cam->farz, cam->nearz );
 483    m4x4_reset_clipping( pv_prev, cam->farz, cam->nearz );
 484
 485    m4x4_mul( pv,      v,      pv );
 486    m4x4_mul( pv_prev, v_prev, pv_prev );
 487
 488    m4x3f identity_matrix;
 489    m4x3_identity( identity_matrix );
 490
 491    /*
 492     * Draw
 493     */
 494    shader_model_sky_use();
 495    shader_model_sky_uMdl( identity_matrix );
 496    shader_model_sky_uPv( pv );
 497    shader_model_sky_uPvmPrev( pv_prev );
 498    shader_model_sky_uTexGarbage(0);
 499    world_link_lighting_ub( world, _shader_model_sky.id );
 500
 501    glActiveTexture( GL_TEXTURE0 );
 502    glBindTexture( GL_TEXTURE_2D, world_render.tex_terrain_noise );
 503
 504    glDepthMask( GL_FALSE );
 505    glDisable( GL_DEPTH_TEST );
 506
 507    mesh_bind( &world_render.skydome );
 508    mesh_draw( &world_render.skydome );
 509
 510    glEnable( GL_DEPTH_TEST );
 511    glDepthMask( GL_TRUE );
 512 }
 513
 514 VG_STATIC void render_world_gates( world_instance *world, camera *cam,
 515                                    int layer_depth )
 516 {
 517    float closest = INFINITY;
 518    struct ent_gate *gate = NULL;
 519
 520    for( u32 i=0; i<mdl_arrcount(&world->ent_gate); i++ ){
 521       ent_gate *gi = mdl_arritm( &world->ent_gate, i );
 522
 523       if( !(gi->flags & k_ent_gate_linked) )
 524          continue;
 525
 526       float dist = v3_dist2( gi->co[0], cam->transform[3] );
 527
 528       vg_line_point( gi->co[0], 0.25f, VG__BLUE );
 529
 530       if( dist < closest ){
 531          closest = dist;
 532          gate = gi;
 533       }
 534    }
 535
 536    world->rendering_gate = gate;
 537    if( gate ){
 538       if( gate->flags & k_ent_gate_nonlocal ){
 539          if( world_loader.state != k_world_loader_none ){
 540             world->rendering_gate = NULL;
 541             return;
 542          }
 543
 544          world_instance *dest_world = &world_static.worlds[ gate->target ];
 545          render_gate( world, dest_world, gate, cam, layer_depth );
 546       }
 547       else{
 548          render_gate( world, world, gate, cam, layer_depth );
 549       }
 550    }
 551 }
 552
 553 VG_STATIC void world_prerender( world_instance *world )
 554 {
 555
 556    if( mdl_arrcount( &world->ent_light ) ){
 557       f32 rate = vg_maxf(0.1f, fabsf(k_day_length)) * vg_signf(k_day_length);
 558       world->time += vg.time_delta * (1.0/(rate*60.0));
 559    }
 560    else{
 561       world->time = 0.834;
 562    }
 563
 564    struct ub_world_lighting *state = &world->ub_lighting;
 565
 566    state->g_time = world->time;
 567    state->g_realtime = vg.time;
 568    state->g_debug_indices = k_debug_light_indices;
 569    state->g_light_preview = k_light_preview;
 570    state->g_debug_complexity = k_debug_light_complexity;
 571    state->g_time_of_day = vg_fractf( world->time );
 572    state->g_day_phase   = cosf( state->g_time_of_day * VG_PIf * 2.0f );
 573    state->g_sunset_phase= cosf( state->g_time_of_day * VG_PIf * 4.0f + VG_PIf );
 574
 575    state->g_day_phase    =       state->g_day_phase    * 0.5f + 0.5f;
 576    state->g_sunset_phase = powf( state->g_sunset_phase * 0.5f + 0.5f, 6.0f );
 577
 578    float a = state->g_time_of_day * VG_PIf * 2.0f;
 579    state->g_sun_dir[0] = sinf( a );
 580    state->g_sun_dir[1] = cosf( a );
 581    state->g_sun_dir[2] = 0.2f;
 582    v3_normalize( state->g_sun_dir );
 583
 584    world->probabilities[ k_probability_curve_constant ] = 1.0f;
 585    float dp = state->g_day_phase;
 586
 587    world->probabilities[ k_probability_curve_wildlife_day ] =
 588       (dp*dp*0.8f+state->g_sunset_phase)*0.8f;
 589    world->probabilities[ k_probability_curve_wildlife_night ] =
 590       1.0f-powf(fabsf((state->g_time_of_day-0.5f)*5.0f),5.0f);
 591
 592    glBindBuffer( GL_UNIFORM_BUFFER, world->ubo_lighting );
 593    glBufferSubData( GL_UNIFORM_BUFFER, 0,
 594                     sizeof(struct ub_world_lighting), &world->ub_lighting );
 595 }
 596
 597 VG_STATIC void skateshop_render(void);
 598 VG_STATIC void render_world( world_instance *world, camera *cam,
 599                              int layer_depth )
 600 {
 601    render_sky( world, cam );
 602
 603    render_world_routes( world, cam, layer_depth );
 604    render_world_standard( world, cam );
 605    render_world_vb( world, cam );
 606    render_world_alphatest( world, cam );
 607    render_world_fxglow( world, cam );
 608    render_terrain( world, cam );
 609
 610    if( layer_depth == 0 ){
 611       skateshop_render();
 612
 613       /* Render SFD's */
 614       u32 closest = 0;
 615       float min_dist = INFINITY;
 616
 617       if( !mdl_arrcount( &world->ent_route ) )
 618          return;
 619
 620       for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i++ ){
 621          ent_route *route = mdl_arritm( &world->ent_route, i );
 622          float dist = v3_dist2( route->board_transform[3], cam->pos );
 623
 624          if( dist < min_dist ){
 625             min_dist = dist;
 626             closest = i;
 627          }
 628       }
 629
 630       ent_route *route = mdl_arritm( &world->ent_route, closest );
 631       sfd_render( world, cam, route->board_transform );
 632    }
 633 }
 634
 635 VG_STATIC void render_world_depth( world_instance *world, camera *cam )
 636 {
 637    m4x3f identity_matrix;
 638    m4x3_identity( identity_matrix );
 639
 640    shader_scene_depth_use();
 641    shader_scene_depth_uCamera( cam->transform[3] );
 642    shader_scene_depth_uPv( cam->mtx.pv );
 643    shader_scene_depth_uPvmPrev( cam->mtx_prev.pv );
 644    shader_scene_depth_uMdl( identity_matrix );
 645    world_link_lighting_ub( world, _shader_scene_depth.id );
 646
 647    mesh_bind( &world->mesh_geo );
 648    mesh_draw( &world->mesh_geo );
 649 }
 650
 651 VG_STATIC void render_world_position( world_instance *world, camera *cam )
 652 {
 653    m4x3f identity_matrix;
 654    m4x3_identity( identity_matrix );
 655
 656    shader_scene_position_use();
 657    shader_scene_position_uCamera( cam->transform[3] );
 658    shader_scene_position_uPv( cam->mtx.pv );
 659    shader_scene_position_uPvmPrev( cam->mtx_prev.pv );
 660    shader_scene_position_uMdl( identity_matrix );
 661    world_link_lighting_ub( world, _shader_scene_position.id );
 662
 663    mesh_bind( &world->mesh_geo );
 664    mesh_draw( &world->mesh_geo );
 665 }
 666
 667 #endif