player_render.c

   1 #ifndef PLAYER_RENDER_C
   2 #define PLAYER_RENDER_C
   3
   4 #include "player.h"
   5 #include "player_render.h"
   6 #include "camera.h"
   7 #include "player_model.h"
   8 #include "ent_skateshop.h"
   9 #include "audio.h"
  10 #include "input.h"
  11
  12 #include "shaders/model_character_view.h"
  13 #include "shaders/model_board_view.h"
  14 #include "shaders/model_entity.h"
  15 #include "shaders/model_board_view.h"
  16 #include "depth_compare.h"
  17
  18 #include "network.h"
  19 #include "player_remote.h"
  20 #include "player_glide.h"
  21
  22 static void player_load_animation_reference( const char *path ){
  23    mdl_context *meta = &localplayer.skeleton_meta;
  24    mdl_open( meta, path, vg_mem.rtmemory );
  25    mdl_load_metadata_block( meta, vg_mem.rtmemory );
  26    mdl_load_animation_block( meta, vg_mem.rtmemory );
  27    mdl_close( meta );
  28
  29    struct skeleton *sk = &localplayer.skeleton;
  30    skeleton_setup( sk, vg_mem.rtmemory, meta );
  31
  32    localplayer.id_world      = skeleton_bone_id( sk, "world" );
  33    localplayer.id_hip        = skeleton_bone_id( sk, "hips" );
  34    localplayer.id_chest      = skeleton_bone_id( sk, "chest" );
  35    localplayer.id_ik_hand_l  = skeleton_bone_id( sk, "hand.IK.L" );
  36    localplayer.id_ik_hand_r  = skeleton_bone_id( sk, "hand.IK.R" );
  37    localplayer.id_ik_elbow_l = skeleton_bone_id( sk, "elbow.L" );
  38    localplayer.id_ik_elbow_r = skeleton_bone_id( sk, "elbow.R" );
  39    localplayer.id_head       = skeleton_bone_id( sk, "head" );
  40    localplayer.id_foot_l  = skeleton_bone_id( sk, "foot.L" );
  41    localplayer.id_foot_r  = skeleton_bone_id( sk, "foot.R" );
  42    localplayer.id_ik_foot_l  = skeleton_bone_id( sk, "foot.IK.L" );
  43    localplayer.id_ik_foot_r  = skeleton_bone_id( sk, "foot.IK.R" );
  44    localplayer.id_board      = skeleton_bone_id( sk, "board" );
  45    localplayer.id_wheel_l    = skeleton_bone_id( sk, "wheel.L" );
  46    localplayer.id_wheel_r    = skeleton_bone_id( sk, "wheel.R" );
  47    localplayer.id_ik_knee_l  = skeleton_bone_id( sk, "knee.L" );
  48    localplayer.id_ik_knee_r  = skeleton_bone_id( sk, "knee.R" );
  49    localplayer.id_eyes       = skeleton_bone_id( sk, "eyes" );
  50
  51    for( i32 i=0; i<sk->bone_count; i ++ ){
  52       localplayer.skeleton_mirror[i] = 0;
  53    }
  54
  55    for( i32 i=1; i<sk->bone_count-1; i ++ ){
  56       struct skeleton_bone *si = &sk->bones[i];
  57
  58       char tmp[64];
  59       vg_str str;
  60       vg_strnull( &str, tmp, 64 );
  61       vg_strcat( &str, si->name );
  62
  63       char *L = vg_strch( &str, 'L' );
  64       if( !L ) continue;
  65       u32 len = L-tmp;
  66
  67       for( i32 j=i+1; j<sk->bone_count; j ++ ){
  68          struct skeleton_bone *sj = &sk->bones[j];
  69
  70          if( !strncmp( si->name, sj->name, len ) ){
  71             if( sj->name[len] == 'R' ){
  72                localplayer.skeleton_mirror[i] = j;
  73                localplayer.skeleton_mirror[j] = i;
  74                break;
  75             }
  76          }
  77       }
  78    }
  79
  80    setup_ragdoll_from_skeleton( sk, &localplayer.ragdoll );
  81
  82    /* allocate matrix buffers for localplayer and remote players */
  83    u32 mtx_size = sizeof(m4x3f)*sk->bone_count;
  84    localplayer.final_mtx = vg_linear_alloc( vg_mem.rtmemory, mtx_size );
  85    netplayers.final_mtx = vg_linear_alloc( vg_mem.rtmemory,
  86                                            mtx_size*NETWORK_MAX_PLAYERS );
  87    netplayers.glider_mtx = vg_linear_alloc( vg_mem.rtmemory,
  88                                             sizeof(m4x3f)*NETWORK_MAX_PLAYERS );
  89 }
  90
  91 /* TODO: Standard model load */
  92
  93 static void dynamic_model_load( mdl_context *ctx,
  94                                 struct dynamic_model_1texture *mdl,
  95                                 const char *path, u32 *fixup_table ){
  96    if( !mdl_arrcount( &ctx->textures ) )
  97       vg_fatal_error( "No texture in model" );
  98
  99    mdl_texture *tex0 = mdl_arritm( &ctx->textures, 0 );
 100    void *data = vg_linear_alloc( vg_mem.scratch, tex0->file.pack_size );
 101    mdl_fread_pack_file( ctx, &tex0->file, data );
 102
 103    vg_tex2d_load_qoi_async( data, tex0->file.pack_size,
 104                             VG_TEX2D_NEAREST|VG_TEX2D_CLAMP,
 105                             &mdl->texture );
 106
 107    mdl_async_load_glmesh( ctx, &mdl->mesh, fixup_table );
 108 }
 109
 110 static void dynamic_model_unload( struct dynamic_model_1texture *mdl ){
 111    mesh_free( &mdl->mesh );
 112    glDeleteTextures( 1, &mdl->texture );
 113 }
 114
 115 /* TODO: allow error handling */
 116 static void player_board_load( struct player_board *board,
 117                                   const char *path ){
 118
 119    vg_linear_clear( vg_mem.scratch );
 120
 121    mdl_context ctx;
 122    mdl_open( &ctx, path, vg_mem.scratch );
 123    mdl_load_metadata_block( &ctx, vg_mem.scratch );
 124
 125    dynamic_model_load( &ctx, &board->mdl, path, NULL );
 126
 127    mdl_array_ptr markers;
 128    MDL_LOAD_ARRAY( &ctx, &markers, ent_marker, vg_mem.scratch );
 129
 130    /* TODO: you get put into a new section, the above is standard mdl loads. */
 131    for( int i=0; i<4; i++ )
 132       board->wheels[i].indice_count = 0;
 133    for( int i=0; i<2; i++ )
 134       board->trucks[i].indice_count = 0;
 135    board->board.indice_count = 0;
 136
 137    for( u32 i=0; i<mdl_arrcount(&ctx.meshs); i++ ){
 138       mdl_mesh *mesh = mdl_arritm( &ctx.meshs, i );
 139
 140       if( mdl_entity_id_type( mesh->entity_id ) != k_ent_marker )
 141          continue;
 142
 143       u32 index = mdl_entity_id_id( mesh->entity_id );
 144       ent_marker *marker = mdl_arritm( &markers, index );
 145
 146       mdl_submesh *sm0 = mdl_arritm( &ctx.submeshs, mesh->submesh_start );
 147
 148       const char *alias = mdl_pstr( &ctx, marker->pstr_alias );
 149       u32 lr = marker->transform.co[0] > 0.0f? 1: 0,
 150           fb = marker->transform.co[2] > 0.0f? 0: 1;
 151
 152       if( !strcmp( alias, "wheel" ) ){
 153          u32 id = fb<<1 | lr;
 154          board->wheels[ id ] = *sm0;
 155          v3_copy( marker->transform.co, board->wheel_positions[ id ] );
 156       }
 157       else if( !strcmp( alias, "board" ) ){
 158          board->board = *sm0;
 159          v3_copy( marker->transform.co, board->board_position );
 160       }
 161       else if( !strcmp( alias, "truck" ) ){
 162          board->trucks[ fb ] = *sm0;
 163          v3_copy( marker->transform.co, board->truck_positions[ fb ] );
 164       }
 165    }
 166
 167    mdl_close( &ctx );
 168 }
 169
 170 static void player_board_unload( struct player_board *board ){
 171    dynamic_model_unload( &board->mdl );
 172 }
 173
 174 static void player_model_load( struct player_model *board, const char *path){
 175    vg_linear_clear( vg_mem.scratch );
 176
 177    mdl_context ctx;
 178    mdl_open( &ctx, path, vg_mem.scratch );
 179    mdl_load_metadata_block( &ctx, vg_mem.scratch );
 180
 181    if( !ctx.armatures.count )
 182       vg_fatal_error( "No armature in playermodel\n" );
 183
 184    mdl_armature *armature = mdl_arritm( &ctx.armatures, 0 );
 185
 186    u32 fixup_table[ armature->bone_count+1 ];
 187    for( u32 i=0; i<armature->bone_count+1; i ++ )
 188       fixup_table[i] = 0;
 189
 190    for( u32 i=1; i<localplayer.skeleton.bone_count; i ++ ){
 191       struct skeleton_bone *sb = &localplayer.skeleton.bones[i];
 192       u32 hash = vg_strdjb2( sb->name );
 193
 194       for( u32 j=1; j<armature->bone_count; j ++ ){
 195          mdl_bone *bone = mdl_arritm( &ctx.bones, armature->bone_start+j );
 196
 197          if( mdl_pstreq( &ctx, bone->pstr_name, sb->name, hash ) ){
 198             fixup_table[j+1] = i;
 199             break;
 200          }
 201       }
 202    }
 203
 204    dynamic_model_load( &ctx, &board->mdl, path, fixup_table );
 205    mdl_close( &ctx );
 206 }
 207
 208 static void player_model_unload( struct player_model *board ){
 209    dynamic_model_unload( &board->mdl );
 210 }
 211
 212 static void apply_full_skeleton_pose( struct skeleton *sk, player_pose *pose,
 213                                       m4x3f *final_mtx ){
 214    m4x3f transform;
 215    q_m3x3( pose->root_q, transform );
 216    v3_copy( pose->root_co, transform[3] );
 217
 218    if( pose->type == k_player_pose_type_ik ){
 219       skeleton_apply_pose( sk, pose->keyframes,
 220                            k_anim_apply_defer_ik, final_mtx );
 221       skeleton_apply_ik_pass( sk, final_mtx );
 222       skeleton_apply_pose( sk, pose->keyframes,
 223                            k_anim_apply_deffered_only, final_mtx );
 224       skeleton_apply_inverses( sk, final_mtx );
 225       skeleton_apply_transform( sk, transform, final_mtx );
 226    }
 227    else if( pose->type == k_player_pose_type_fk_2 ){
 228       skeleton_apply_pose( sk, pose->keyframes,
 229                            k_anim_apply_always, final_mtx );
 230       skeleton_apply_inverses( sk, final_mtx );
 231       skeleton_apply_transform( sk, transform, final_mtx );
 232    }
 233 }
 234
 235 static void player__animate(void){
 236    struct player_subsystem_interface *sys =
 237       player_subsystems[localplayer.subsystem];
 238
 239    struct player_board *board =
 240       addon_cache_item_if_loaded( k_addon_type_board,
 241                                   localplayer.board_view_slot );
 242
 243    assert( sys->animate );
 244    assert( sys->pose );
 245    assert( sys->animator_data );
 246
 247    sys->animate();
 248
 249    player_pose *pose = &localplayer.pose;
 250    sys->pose( sys->animator_data, pose );
 251
 252    struct skeleton *sk = &localplayer.skeleton;
 253
 254    if( localplayer.holdout_time > 0.0f ){
 255       skeleton_lerp_pose( sk,
 256                           pose->keyframes,localplayer.holdout_pose.keyframes,
 257                           localplayer.holdout_time, pose->keyframes );
 258
 259       v3_muladds( pose->root_co, localplayer.holdout_pose.root_co,
 260                   localplayer.holdout_time, pose->root_co );
 261       q_nlerp( pose->root_q, localplayer.holdout_pose.root_q,
 262                localplayer.holdout_time, pose->root_q );
 263
 264       localplayer.holdout_time -= vg.time_frame_delta / 0.25f;
 265    }
 266
 267    effect_blink_apply( &localplayer.effect_data.blink,
 268                        &localplayer.pose, vg.time_delta );
 269    apply_full_skeleton_pose( sk, &localplayer.pose, localplayer.final_mtx );
 270
 271    if( sys->effects ){
 272       sys->effects( sys->animator_data, localplayer.final_mtx, board,
 273                     &localplayer.effect_data );
 274    }
 275
 276    skeleton_debug( sk, localplayer.final_mtx );
 277
 278    if( sys->post_animate )
 279       sys->post_animate();
 280
 281    player__observe_system( localplayer.subsystem );
 282    if( sys->sfx_comp )
 283       sys->sfx_comp( sys->animator_data );
 284
 285    player__cam_iterate();
 286 }
 287
 288 static void player_copy_frame_animator( replay_frame *frame ){
 289    struct player_subsystem_interface *sys =
 290       player_subsystems[localplayer.subsystem];
 291
 292    if( sys->animator_size ){
 293       void *src = replay_frame_data( frame, k_replay_framedata_animator );
 294       memcpy( sys->animator_data, src, sys->animator_size );
 295    }
 296 }
 297
 298 static void lerp_player_pose( player_pose *pose0, player_pose *pose1, f32 t,
 299                               player_pose *posed ){
 300    struct skeleton *sk = &localplayer.skeleton;
 301
 302    v3_lerp( pose0->root_co, pose1->root_co, t, posed->root_co );
 303    q_nlerp( pose0->root_q,  pose1->root_q,  t, posed->root_q );
 304    posed->type = pose0->type;
 305    posed->board.lean = vg_lerpf( pose0->board.lean, pose1->board.lean, t );
 306
 307    if( pose0->type != pose1->type ){
 308       /* it would be nice to apply IK pass in-keyframes. TOO BAD! */
 309       skeleton_copy_pose( sk, pose0->keyframes, posed->keyframes );
 310    }
 311    else {
 312       skeleton_lerp_pose( sk, pose0->keyframes, pose1->keyframes, t,
 313                           posed->keyframes );
 314    }
 315 }
 316
 317 static void player__observe_system( enum player_subsystem id ){
 318    if( id != localplayer.observing_system ){
 319       struct player_subsystem_interface *sysm1 =
 320          player_subsystems[ localplayer.observing_system ];
 321
 322       if( sysm1->sfx_kill ) sysm1->sfx_kill();
 323       localplayer.observing_system = id;
 324    }
 325 }
 326
 327 static void player__animate_from_replay( replay_buffer *replay ){
 328    replay_frame *frame = replay->cursor_frame,
 329                 *next = NULL;
 330    if( frame ){
 331       next = frame->r;
 332
 333       struct player_subsystem_interface
 334          *sys0 = player_subsystems[frame->system];
 335       void *a0 = replay_frame_data( frame, k_replay_framedata_animator );
 336
 337       struct replay_glider_data
 338          *g0 = replay_frame_data( frame, k_replay_framedata_glider ),
 339          *g1;
 340
 341       f32 t = 0.0f;
 342
 343       if( next ){
 344          t = replay_subframe_time( replay );
 345
 346          player_pose pose0, pose1;
 347
 348          struct player_subsystem_interface
 349             *sys1 = player_subsystems[next->system];
 350          void *a1 = replay_frame_data( next, k_replay_framedata_animator );
 351
 352          sys0->pose( a0, &pose0 );
 353          sys1->pose( a1, &pose1 );
 354
 355          lerp_player_pose( &pose0, &pose1, t, &localplayer.pose );
 356          g1 = replay_frame_data( next,  k_replay_framedata_glider );
 357       }
 358       else{
 359          sys0->pose( a0, &localplayer.pose );
 360          g1 = NULL;
 361       }
 362
 363       player__observe_system( frame->system );
 364       if( sys0->sfx_comp )
 365          sys0->sfx_comp( a0 );
 366
 367       if( g0 ){
 368          if( g0->glider_orphan ){
 369             if( g1 ){
 370                v3_lerp( g0->co, g1->co, t, player_glide.rb.co );
 371                q_nlerp( g0->q,  g1->q,  t, player_glide.rb.q );
 372             }
 373             else {
 374                v3_copy( g0->co, player_glide.rb.co );
 375                v4_copy( g0->q,  player_glide.rb.q );
 376             }
 377
 378             rb_update_matrices( &player_glide.rb );
 379          }
 380
 381          if( g1 )
 382             player_glide.t = vg_lerpf( g0->t, g1->t, t );
 383          else
 384             player_glide.t = g0->t;
 385
 386          localplayer.have_glider   = g0->have_glider;
 387          localplayer.glider_orphan = g0->glider_orphan;
 388       }
 389       else /* no glider data in g1, or edge case we dont care about */ {
 390          localplayer.have_glider = 0;
 391          localplayer.glider_orphan = 0;
 392          player_glide.t = 0.0f;
 393       }
 394    }
 395    else return;
 396
 397    apply_full_skeleton_pose( &localplayer.skeleton, &localplayer.pose,
 398                              localplayer.final_mtx );
 399 }
 400
 401 static void player__pre_render(void){
 402    /* shadowing/ao info */
 403    struct player_board *board =
 404       addon_cache_item_if_loaded( k_addon_type_board,
 405                                   localplayer.board_view_slot );
 406    v3f vp0, vp1;
 407    if( board ){
 408       v3_copy((v3f){0.0f,0.1f, board->truck_positions[0][2]}, vp0 );
 409       v3_copy((v3f){0.0f,0.1f, board->truck_positions[1][2]}, vp1 );
 410    }
 411    else{
 412       v3_zero( vp0 );
 413       v3_zero( vp1 );
 414    }
 415
 416    struct ub_world_lighting *ubo = &world_current_instance()->ub_lighting;
 417    v3f *board_mtx = localplayer.final_mtx[ localplayer.id_board ];
 418    m4x3_mulv( board_mtx, vp0, ubo->g_board_0 );
 419    m4x3_mulv( board_mtx, vp1, ubo->g_board_1 );
 420 }
 421
 422 static void render_board( camera *cam, world_instance *world,
 423                           struct player_board *board, m4x3f root,
 424                           struct player_board_pose *pose,
 425                           enum board_shader shader )
 426 {
 427    if( !board )
 428       board = &localplayer.fallback_board;
 429
 430    /* TODO:
 431     *  adding depth compare to this shader
 432     */
 433
 434    v3f inverse;
 435
 436    glActiveTexture( GL_TEXTURE0 );
 437    glBindTexture( GL_TEXTURE_2D, board->mdl.texture );
 438
 439    if( shader == k_board_shader_player ){
 440       shader_model_board_view_use();
 441       shader_model_board_view_uTexMain( 0 );
 442       shader_model_board_view_uCamera( cam->transform[3] );
 443       shader_model_board_view_uPv( cam->mtx.pv );
 444
 445       shader_model_board_view_uDepthCompare(1);
 446       depth_compare_bind(
 447          shader_model_board_view_uTexSceneDepth,
 448          shader_model_board_view_uInverseRatioDepth,
 449          shader_model_board_view_uInverseRatioMain,
 450          cam );
 451
 452       WORLD_BIND_LIGHT_BUFFERS_UB0_TEX234( world, model_board_view );
 453    }
 454    else if( shader == k_board_shader_entity ){
 455       shader_model_entity_use();
 456       shader_model_entity_uTexMain( 0 );
 457       shader_model_entity_uCamera( cam->transform[3] );
 458       shader_model_entity_uPv( cam->mtx.pv );
 459
 460       WORLD_BIND_LIGHT_BUFFERS_UB0_TEX234( world, model_entity );
 461    }
 462
 463    mesh_bind( &board->mdl.mesh );
 464
 465    m4x4f m4mdl;
 466
 467    if( board->board.indice_count ){
 468       m4x3f mlocal;
 469       m3x3_identity( mlocal );
 470
 471       mdl_keyframe kf;
 472       v3_zero( kf.co );
 473       q_identity( kf.q );
 474       v3_zero( kf.s );
 475
 476       v4f qroll;
 477       q_axis_angle( qroll, (v3f){0.0f,0.0f,1.0f}, pose->lean * 0.6f );
 478       keyframe_rotate_around( &kf, (v3f){0.0f,0.11f,0.0f},
 479                               (v3f){0.0f,0.0f,0.0f}, qroll );
 480
 481       v3_add( board->board_position, kf.co, mlocal[3] );
 482       q_m3x3( kf.q, mlocal );
 483
 484       m4x3_mul( root, mlocal, mlocal );
 485
 486       if( shader == k_board_shader_entity ){
 487          /* TODO: provide a way to supply previous mdl mtx? */
 488          m4x3_expand( mlocal, m4mdl );
 489          m4x4_mul( cam->mtx_prev.pv, m4mdl, m4mdl );
 490          shader_model_entity_uPvmPrev( m4mdl );
 491          shader_model_entity_uMdl( mlocal );
 492       }
 493       else
 494          shader_model_board_view_uMdl( mlocal );
 495
 496       mdl_draw_submesh( &board->board );
 497    }
 498
 499    for( int i=0; i<2; i++ ){
 500       if( !board->trucks[i].indice_count )
 501          continue;
 502
 503       m4x3f mlocal;
 504       m3x3_identity( mlocal );
 505       v3_copy( board->truck_positions[i], mlocal[3] );
 506       m4x3_mul( root, mlocal, mlocal );
 507
 508       if( shader == k_board_shader_entity ){
 509          m4x3_expand( mlocal, m4mdl );
 510          m4x4_mul( cam->mtx_prev.pv, m4mdl, m4mdl );
 511          shader_model_entity_uPvmPrev( m4mdl );
 512          shader_model_entity_uMdl( mlocal );
 513       }
 514       else
 515          shader_model_board_view_uMdl( mlocal );
 516
 517       mdl_draw_submesh( &board->trucks[i] );
 518    }
 519
 520    for( int i=0; i<4; i++ ){
 521       if( !board->wheels[i].indice_count )
 522          continue;
 523
 524       m4x3f mlocal;
 525       m3x3_identity( mlocal );
 526       v3_copy( board->wheel_positions[i], mlocal[3] );
 527       m4x3_mul( root, mlocal, mlocal );
 528
 529       if( shader == k_board_shader_entity ){
 530          m4x3_expand( mlocal, m4mdl );
 531          m4x4_mul( cam->mtx_prev.pv, m4mdl, m4mdl );
 532          shader_model_entity_uPvmPrev( m4mdl );
 533          shader_model_entity_uMdl( mlocal );
 534       }
 535       else
 536          shader_model_board_view_uMdl( mlocal );
 537
 538       mdl_draw_submesh( &board->wheels[i] );
 539    }
 540 }
 541
 542 static void render_playermodel( camera *cam, world_instance *world,
 543                                 int depth_compare,
 544                                 struct player_model *model,
 545                                 struct skeleton *skeleton,
 546                                 m4x3f *final_mtx ){
 547    if( !model ) return;
 548
 549    shader_model_character_view_use();
 550
 551         glActiveTexture( GL_TEXTURE0 );
 552         glBindTexture( GL_TEXTURE_2D, model->mdl.texture );
 553    shader_model_character_view_uTexMain( 0 );
 554    shader_model_character_view_uCamera( cam->transform[3] );
 555    shader_model_character_view_uPv( cam->mtx.pv );
 556
 557    shader_model_character_view_uDepthCompare( depth_compare );
 558    if( depth_compare ){
 559       depth_compare_bind(
 560          shader_model_character_view_uTexSceneDepth,
 561          shader_model_character_view_uInverseRatioDepth,
 562          shader_model_character_view_uInverseRatioMain,
 563          cam );
 564    }
 565
 566    WORLD_BIND_LIGHT_BUFFERS_UB0_TEX234( world, model_character_view );
 567
 568    glUniformMatrix4x3fv( _uniform_model_character_view_uTransforms,
 569                          skeleton->bone_count,
 570                          0,
 571                          (const GLfloat *)final_mtx );
 572
 573    mesh_bind( &model->mdl.mesh );
 574    mesh_draw( &model->mdl.mesh );
 575 }
 576
 577 static void player__render( camera *cam ){
 578    world_instance *world = world_current_instance();
 579    SDL_AtomicLock( &addon_system.sl_cache_using_resources );
 580
 581    struct player_model *model =
 582       addon_cache_item_if_loaded( k_addon_type_player,
 583                                   localplayer.playermodel_view_slot );
 584
 585    if( !model ) model = &localplayer.fallback_model;
 586    render_playermodel( cam, world, 1, model, &localplayer.skeleton,
 587                        localplayer.final_mtx );
 588
 589    struct player_board *board =
 590       addon_cache_item_if_loaded( k_addon_type_board,
 591                                   localplayer.board_view_slot );
 592
 593    render_board( cam, world, board, localplayer.final_mtx[localplayer.id_board],
 594                   &localplayer.pose.board, k_board_shader_player );
 595
 596    SDL_AtomicUnlock( &addon_system.sl_cache_using_resources );
 597
 598    glEnable( GL_CULL_FACE );
 599    player_glide_render( cam, world, &localplayer.pose );
 600    glDisable( GL_CULL_FACE );
 601 }
 602
 603 static void player_mirror_pose( mdl_keyframe pose[32],
 604                                 mdl_keyframe mirrored[32] ){
 605    mdl_keyframe temp[32];
 606
 607    struct skeleton *sk = &localplayer.skeleton;
 608    for( u32 i=1; i<sk->bone_count; i ++ ){
 609       mdl_keyframe *dest = &temp[i-1];
 610       u8 mapping = localplayer.skeleton_mirror[i];
 611
 612       if( mapping ) *dest = pose[mapping-1]; /* R */
 613       else          *dest = pose[i-1];       /* L */
 614
 615       dest->co[2] *= -1.0f;
 616       dest->q[0] *= -1.0f;
 617       dest->q[1] *= -1.0f;
 618    }
 619
 620    for( u32 i=0; i<sk->bone_count-1; i ++ ){
 621       mirrored[i] = temp[i];
 622    }
 623 }
 624 #endif /* PLAYER_RENDER_C */