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 void world_render_if( world_instance *world, struct world_pass *pass )
 158 {
 159    for( int i=0; i<world->surface_count; i++ ){
 160       struct world_surface *mat = &world->surfaces[i];
 161
 162       if( mat->info.shader == pass->shader ){
 163          mdl_submesh *sm;
 164
 165          if( pass->geo_type == k_world_geo_type_solid )
 166             sm = &mat->sm_geo;
 167          else
 168             sm = &mat->sm_no_collide;
 169
 170          if( !sm->indice_count )
 171             continue;
 172
 173          m4x3f mmdl;
 174          m4x3_identity( mmdl );
 175          pass->fn_set_mdl( mmdl );
 176          pass->fn_set_uPvmPrev( pass->cam->mtx_prev.pv );
 177
 178          pass->fn_bind_textures( world, mat );
 179          mdl_draw_submesh( sm );
 180
 181          for( u32 j=0; j<mdl_arrcount( &world->ent_traffic ); j++ ){
 182             ent_traffic *traffic = mdl_arritm( &world->ent_traffic, j );
 183
 184             for( u32 k=0; k<traffic->submesh_count; k++ ){
 185                sm = mdl_arritm( &world->meta.submeshs,
 186                                  traffic->submesh_start+k );
 187
 188                q_m3x3( traffic->transform.q, mmdl );
 189                v3_copy( traffic->transform.co, mmdl[3] );
 190
 191                m4x4f m4mdl;
 192                m4x3_expand( mmdl, m4mdl );
 193                m4x4_mul( pass->cam->mtx_prev.pv, m4mdl, m4mdl );
 194
 195                pass->fn_set_mdl( mmdl );
 196                pass->fn_set_uPvmPrev( m4mdl );
 197
 198                mdl_draw_submesh( sm );
 199             }
 200          }
 201       }
 202    }
 203 }
 204
 205 VG_STATIC
 206 void world_render_both_stages( world_instance *world, struct world_pass *pass )
 207 {
 208    mesh_bind( &world->mesh_geo );
 209    pass->geo_type = k_world_geo_type_solid;
 210    world_render_if( world, pass );
 211
 212    glDisable( GL_CULL_FACE );
 213    mesh_bind( &world->mesh_no_collide );
 214    pass->geo_type = k_world_geo_type_nonsolid;
 215    world_render_if( world, pass );
 216    glEnable( GL_CULL_FACE );
 217 }
 218
 219 VG_STATIC void bindpoint_diffuse_texture1( world_instance *world,
 220                                            struct world_surface *mat )
 221
 222 {
 223    glActiveTexture( GL_TEXTURE1 );
 224    glBindTexture( GL_TEXTURE_2D, world->textures[ mat->info.tex_diffuse ] );
 225 }
 226
 227 VG_STATIC void render_world_vb( world_instance *world, camera *cam )
 228 {
 229    shader_scene_vertex_blend_use();
 230    shader_scene_vertex_blend_uTexGarbage(0);
 231    shader_scene_vertex_blend_uTexGradients(1);
 232    world_link_lighting_ub( world, _shader_scene_vertex_blend.id );
 233    world_bind_position_texture( world, _shader_scene_vertex_blend.id,
 234                                 _uniform_scene_vertex_blend_g_world_depth, 2 );
 235    world_bind_light_array( world, _shader_scene_vertex_blend.id,
 236                                 _uniform_scene_vertex_blend_uLightsArray, 3 );
 237    world_bind_light_index( world, _shader_scene_vertex_blend.id,
 238                                 _uniform_scene_vertex_blend_uLightsIndex, 4 );
 239
 240    glActiveTexture( GL_TEXTURE0 );
 241    glBindTexture( GL_TEXTURE_2D, world_render.tex_terrain_noise );
 242
 243    shader_scene_vertex_blend_uPv( cam->mtx.pv );
 244    shader_scene_vertex_blend_uCamera( cam->transform[3] );
 245
 246    struct world_pass pass = {
 247       .shader = k_shader_standard_vertex_blend,
 248       .cam = cam,
 249       .fn_bind_textures = bindpoint_diffuse_texture1,
 250       .fn_set_mdl = shader_scene_vertex_blend_uMdl,
 251       .fn_set_uPvmPrev = shader_scene_vertex_blend_uPvmPrev,
 252    };
 253
 254    world_render_both_stages( world, &pass );
 255 }
 256
 257 VG_STATIC void render_world_standard( world_instance *world, camera *cam )
 258 {
 259    shader_scene_standard_use();
 260    shader_scene_standard_uTexGarbage(0);
 261    shader_scene_standard_uTexMain(1);
 262    shader_scene_standard_uPv( cam->mtx.pv );
 263
 264    world_link_lighting_ub( world, _shader_scene_standard.id );
 265    world_bind_position_texture( world, _shader_scene_standard.id,
 266                                 _uniform_scene_standard_g_world_depth, 2 );
 267    world_bind_light_array( world, _shader_scene_standard.id,
 268                                 _uniform_scene_standard_uLightsArray, 3 );
 269    world_bind_light_index( world, _shader_scene_standard.id,
 270                                 _uniform_scene_standard_uLightsIndex, 4 );
 271
 272    bind_terrain_noise();
 273    shader_scene_standard_uCamera( cam->transform[3] );
 274
 275    struct world_pass pass = {
 276       .shader = k_shader_standard,
 277       .cam = cam,
 278       .fn_bind_textures = bindpoint_diffuse_texture1,
 279       .fn_set_mdl = shader_scene_standard_uMdl,
 280       .fn_set_uPvmPrev = shader_scene_standard_uPvmPrev,
 281    };
 282
 283    world_render_both_stages( world, &pass );
 284 }
 285
 286 VG_STATIC void render_world_alphatest( world_instance *world, camera *cam )
 287 {
 288    shader_scene_standard_alphatest_use();
 289    shader_scene_standard_alphatest_uTexGarbage(0);
 290    shader_scene_standard_alphatest_uTexMain(1);
 291    shader_scene_standard_alphatest_uPv( cam->mtx.pv );
 292
 293    world_link_lighting_ub( world, _shader_scene_standard_alphatest.id );
 294    world_bind_position_texture( world, _shader_scene_standard_alphatest.id,
 295                         _uniform_scene_standard_alphatest_g_world_depth, 2 );
 296    world_bind_light_array( world, _shader_scene_standard_alphatest.id,
 297                         _uniform_scene_standard_alphatest_uLightsArray, 3 );
 298    world_bind_light_index( world, _shader_scene_standard_alphatest.id,
 299                            _uniform_scene_standard_alphatest_uLightsIndex, 4 );
 300
 301
 302    bind_terrain_noise();
 303
 304
 305    shader_scene_standard_alphatest_uCamera( cam->transform[3] );
 306
 307    glDisable(GL_CULL_FACE);
 308
 309    struct world_pass pass = {
 310       .shader = k_shader_standard_cutout,
 311       .cam = cam,
 312       .fn_bind_textures = bindpoint_diffuse_texture1,
 313       .fn_set_mdl = shader_scene_standard_alphatest_uMdl,
 314       .fn_set_uPvmPrev = shader_scene_standard_alphatest_uPvmPrev,
 315    };
 316
 317    world_render_both_stages( world, &pass );
 318
 319    glEnable(GL_CULL_FACE);
 320 }
 321
 322 VG_STATIC void render_world_fxglow( world_instance *world, camera *cam ){
 323    glDrawBuffers( 1, (GLenum[]){ GL_COLOR_ATTACHMENT0 } );
 324
 325    shader_scene_fxglow_use();
 326    shader_scene_fxglow_uTexMain(1);
 327    shader_scene_fxglow_uPv( cam->mtx.pv );
 328
 329    world_link_lighting_ub( world, _shader_scene_fxglow.id );
 330    world_bind_position_texture( world, _shader_scene_fxglow.id,
 331                         _uniform_scene_fxglow_g_world_depth, 2 );
 332    world_bind_light_array( world, _shader_scene_fxglow.id,
 333                         _uniform_scene_fxglow_uLightsArray, 3 );
 334    world_bind_light_index( world, _shader_scene_fxglow.id,
 335                            _uniform_scene_fxglow_uLightsIndex, 4 );
 336
 337    shader_scene_fxglow_uCamera( cam->transform[3] );
 338    glDisable(GL_CULL_FACE);
 339
 340    struct world_pass pass = {
 341       .shader = k_shader_fxglow,
 342       .cam = cam,
 343       .fn_bind_textures = bindpoint_diffuse_texture1,
 344       .fn_set_mdl = shader_scene_fxglow_uMdl,
 345       .fn_set_uPvmPrev = shader_scene_fxglow_uPvmPrev,
 346    };
 347
 348    world_render_both_stages( world, &pass );
 349
 350    glEnable(GL_CULL_FACE);
 351    glDrawBuffers( 2, (GLenum[]){ GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1 } );
 352 }
 353
 354 VG_STATIC void bindpoint_terrain( world_instance *world,
 355                                   struct world_surface *mat )
 356 {
 357    glActiveTexture( GL_TEXTURE1 );
 358    glBindTexture( GL_TEXTURE_2D, world->textures[ mat->info.tex_diffuse ] );
 359
 360    shader_scene_terrain_uSandColour( mat->info.colour );
 361    shader_scene_terrain_uBlendOffset( mat->info.colour1 );
 362 }
 363
 364 VG_STATIC void render_terrain( world_instance *world, camera *cam )
 365 {
 366    shader_scene_terrain_use();
 367    shader_scene_terrain_uTexGarbage(0);
 368    shader_scene_terrain_uTexGradients(1);
 369
 370    world_link_lighting_ub( world, _shader_scene_terrain.id );
 371    world_bind_position_texture( world, _shader_scene_terrain.id,
 372                         _uniform_scene_terrain_g_world_depth, 2 );
 373    world_bind_light_array( world, _shader_scene_terrain.id,
 374                         _uniform_scene_terrain_uLightsArray, 3 );
 375    world_bind_light_index( world, _shader_scene_terrain.id,
 376                            _uniform_scene_terrain_uLightsIndex, 4 );
 377
 378    glActiveTexture( GL_TEXTURE0 );
 379    glBindTexture( GL_TEXTURE_2D, world_render.tex_terrain_noise );
 380
 381    shader_scene_terrain_uPv( cam->mtx.pv );
 382    shader_scene_terrain_uCamera( cam->transform[3] );
 383
 384    struct world_pass pass = {
 385       .shader = k_shader_terrain_blend,
 386       .cam = cam,
 387       .fn_bind_textures = bindpoint_terrain,
 388       .fn_set_mdl = shader_scene_terrain_uMdl,
 389       .fn_set_uPvmPrev = shader_scene_terrain_uPvmPrev,
 390    };
 391
 392    world_render_both_stages( world, &pass );
 393 }
 394
 395 VG_STATIC void render_sky( world_instance *world, camera *cam )
 396 {
 397    /*
 398     * Modify matrix to remove clipping and view translation
 399     */
 400    m4x4f v,
 401          v_prev,
 402          pv,
 403          pv_prev;
 404
 405    m4x4_copy( cam->mtx.v, v );
 406    m4x4_copy( cam->mtx_prev.v, v_prev );
 407    v3_zero( v[3] );
 408    v3_zero( v_prev[3] );
 409
 410    m4x4_copy( cam->mtx.p,      pv );
 411    m4x4_copy( cam->mtx_prev.p, pv_prev );
 412    m4x4_reset_clipping( pv,      cam->farz, cam->nearz );
 413    m4x4_reset_clipping( pv_prev, cam->farz, cam->nearz );
 414
 415    m4x4_mul( pv,      v,      pv );
 416    m4x4_mul( pv_prev, v_prev, pv_prev );
 417
 418    m4x3f identity_matrix;
 419    m4x3_identity( identity_matrix );
 420
 421    /*
 422     * Draw
 423     */
 424    shader_model_sky_use();
 425    shader_model_sky_uMdl( identity_matrix );
 426    shader_model_sky_uPv( pv );
 427    shader_model_sky_uPvmPrev( pv_prev );
 428    shader_model_sky_uTexGarbage(0);
 429    world_link_lighting_ub( world, _shader_model_sky.id );
 430
 431    glActiveTexture( GL_TEXTURE0 );
 432    glBindTexture( GL_TEXTURE_2D, world_render.tex_terrain_noise );
 433
 434    glDepthMask( GL_FALSE );
 435    glDisable( GL_DEPTH_TEST );
 436
 437    mesh_bind( &world_render.skydome );
 438    mesh_draw( &world_render.skydome );
 439
 440    glEnable( GL_DEPTH_TEST );
 441    glDepthMask( GL_TRUE );
 442 }
 443
 444 VG_STATIC void render_world_gates( world_instance *world, camera *cam,
 445                                    int layer_depth )
 446 {
 447    float closest = INFINITY;
 448    struct ent_gate *gate = NULL;
 449
 450    for( u32 i=0; i<mdl_arrcount(&world->ent_gate); i++ ){
 451       ent_gate *gi = mdl_arritm( &world->ent_gate, i );
 452
 453       if( gi->type == k_gate_type_unlinked )
 454          continue;
 455
 456       float dist = v3_dist2( gi->co[0], cam->transform[3] );
 457
 458       vg_line_pt3( gi->co[0], 0.25f, VG__BLUE );
 459
 460       if( dist < closest ){
 461          closest = dist;
 462          gate = gi;
 463       }
 464    }
 465
 466    if( gate ){
 467       /* should really be set in fixed update since its used in the physics
 468        * of most systems. too bad! */
 469       world->rendering_gate = gate;
 470
 471       if( gate->type == k_gate_type_teleport ){
 472          render_gate( world, gate, cam, layer_depth );
 473       }
 474       else if( gate->type == k_gate_type_nonlocel ){
 475          if( world_loader.state != k_world_loader_none ){
 476             world->rendering_gate = NULL;
 477             return;
 478          }
 479
 480          world_instance *dest_world = &world_static.worlds[ gate->target ];
 481          render_gate( dest_world, gate, cam, layer_depth );
 482       }
 483       else
 484          world->rendering_gate = NULL;
 485    }
 486 }
 487
 488 VG_STATIC void world_prerender( world_instance *world )
 489 {
 490
 491    if( mdl_arrcount( &world->ent_light ) ){
 492       f32 rate = vg_maxf(0.1f, fabsf(k_day_length)) * vg_signf(k_day_length);
 493       world->time += vg.time_delta * (1.0/(rate*60.0));
 494    }
 495    else{
 496       world->time = 0.834;
 497    }
 498
 499    struct ub_world_lighting *state = &world->ub_lighting;
 500
 501    state->g_time = world->time;
 502    state->g_realtime = vg.time;
 503    state->g_debug_indices = k_debug_light_indices;
 504    state->g_light_preview = k_light_preview;
 505    state->g_debug_complexity = k_debug_light_complexity;
 506    state->g_time_of_day = vg_fractf( world->time );
 507    state->g_day_phase   = cosf( state->g_time_of_day * VG_PIf * 2.0f );
 508    state->g_sunset_phase= cosf( state->g_time_of_day * VG_PIf * 4.0f + VG_PIf );
 509
 510    state->g_day_phase    =       state->g_day_phase    * 0.5f + 0.5f;
 511    state->g_sunset_phase = powf( state->g_sunset_phase * 0.5f + 0.5f, 6.0f );
 512
 513    float a = state->g_time_of_day * VG_PIf * 2.0f;
 514    state->g_sun_dir[0] = sinf( a );
 515    state->g_sun_dir[1] = cosf( a );
 516    state->g_sun_dir[2] = 0.2f;
 517    v3_normalize( state->g_sun_dir );
 518
 519    world->probabilities[ k_probability_curve_constant ] = 1.0f;
 520    float dp = state->g_day_phase;
 521
 522    world->probabilities[ k_probability_curve_wildlife_day ] =
 523       (dp*dp*0.8f+state->g_sunset_phase)*0.8f;
 524    world->probabilities[ k_probability_curve_wildlife_night ] =
 525       1.0f-powf(fabsf((state->g_time_of_day-0.5f)*5.0f),5.0f);
 526
 527    glBindBuffer( GL_UNIFORM_BUFFER, world->ubo_lighting );
 528    glBufferSubData( GL_UNIFORM_BUFFER, 0,
 529                     sizeof(struct ub_world_lighting), &world->ub_lighting );
 530 }
 531
 532 VG_STATIC void skateshop_render(void);
 533 VG_STATIC void render_world( world_instance *world, camera *cam,
 534                              int layer_depth )
 535 {
 536    render_sky( world, cam );
 537
 538    render_world_routes( world, cam, layer_depth );
 539    render_world_standard( world, cam );
 540    render_world_vb( world, cam );
 541    render_world_alphatest( world, cam );
 542    render_world_fxglow( world, cam );
 543    render_terrain( world, cam );
 544
 545    if( layer_depth == 0 ){
 546       skateshop_render();
 547
 548       /* Render SFD's */
 549       u32 closest = 0;
 550       float min_dist = INFINITY;
 551
 552       if( !mdl_arrcount( &world->ent_route ) )
 553          return;
 554
 555       for( u32 i=0; i<mdl_arrcount( &world->ent_route ); i++ ){
 556          ent_route *route = mdl_arritm( &world->ent_route, i );
 557          float dist = v3_dist2( route->board_transform[3], cam->pos );
 558
 559          if( dist < min_dist ){
 560             min_dist = dist;
 561             closest = i;
 562          }
 563       }
 564
 565       ent_route *route = mdl_arritm( &world->ent_route, closest );
 566       sfd_render( world, cam, route->board_transform );
 567    }
 568 }
 569
 570 VG_STATIC void render_world_depth( world_instance *world, camera *cam )
 571 {
 572    m4x3f identity_matrix;
 573    m4x3_identity( identity_matrix );
 574
 575    shader_scene_depth_use();
 576    shader_scene_depth_uCamera( cam->transform[3] );
 577    shader_scene_depth_uPv( cam->mtx.pv );
 578    shader_scene_depth_uPvmPrev( cam->mtx_prev.pv );
 579    shader_scene_depth_uMdl( identity_matrix );
 580    world_link_lighting_ub( world, _shader_scene_depth.id );
 581
 582    mesh_bind( &world->mesh_geo );
 583    mesh_draw( &world->mesh_geo );
 584 }
 585
 586 VG_STATIC void render_world_position( world_instance *world, camera *cam )
 587 {
 588    m4x3f identity_matrix;
 589    m4x3_identity( identity_matrix );
 590
 591    shader_scene_position_use();
 592    shader_scene_position_uCamera( cam->transform[3] );
 593    shader_scene_position_uPv( cam->mtx.pv );
 594    shader_scene_position_uPvmPrev( cam->mtx_prev.pv );
 595    shader_scene_position_uMdl( identity_matrix );
 596    world_link_lighting_ub( world, _shader_scene_position.id );
 597
 598    mesh_bind( &world->mesh_geo );
 599    mesh_draw( &world->mesh_geo );
 600 }
 601
 602 #endif