source/blender/editors/object/object_bake.c

   1 /*
   2  * ***** BEGIN GPL LICENSE BLOCK *****
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  * The Original Code is Copyright (C) 2004 by Blender Foundation
  19  * All rights reserved.
  20  *
  21  * The Original Code is: all of this file.
  22  *
  23  * Contributor(s): Morten Mikkelsen,
  24  *                 Sergey Sharybin
  25  *
  26  * ***** END GPL LICENSE BLOCK *****
  27  */
  28
  29 /** \file blender/editors/object/object_bake.c
  30  *  \ingroup edobj
  31  */
  32
  33 #include <string.h>
  34
  35 #include "MEM_guardedalloc.h"
  36
  37 #include "DNA_scene_types.h"
  38 #include "DNA_screen_types.h"
  39 #include "DNA_space_types.h"
  40 #include "DNA_world_types.h"
  41 #include "DNA_object_types.h"
  42 #include "DNA_mesh_types.h"
  43 #include "DNA_meshdata_types.h"
  44
  45 #include "BLI_blenlib.h"
  46 #include "BLI_threads.h"
  47 #include "BLI_utildefines.h"
  48 #include "BLI_math.h"
  49 #include "BLI_math_geom.h"
  50
  51 #include "BKE_blender.h"
  52 #include "BKE_ccg.h"
  53 #include "BKE_screen.h"
  54 #include "BKE_context.h"
  55 #include "BKE_global.h"
  56 #include "BKE_image.h"
  57 #include "BKE_main.h"
  58 #include "BKE_multires.h"
  59 #include "BKE_report.h"
  60 #include "BKE_cdderivedmesh.h"
  61 #include "BKE_modifier.h"
  62 #include "BKE_DerivedMesh.h"
  63 #include "BKE_subsurf.h"
  64
  65 #include "RE_pipeline.h"
  66 #include "RE_shader_ext.h"
  67 #include "RE_multires_bake.h"
  68
  69 #include "PIL_time.h"
  70
  71 #include "IMB_imbuf_types.h"
  72 #include "IMB_imbuf.h"
  73 #include "IMB_colormanagement.h"
  74
  75 #include "GPU_draw.h" /* GPU_free_image */
  76
  77 #include "WM_api.h"
  78 #include "WM_types.h"
  79
  80 #include "ED_object.h"
  81
  82 #include "object_intern.h"
  83
  84 /* ****************** multires BAKING ********************** */
  85
  86 /* holder of per-object data needed for bake job
  87  * needed to make job totally thread-safe */
  88 typedef struct MultiresBakerJobData {
  89         struct MultiresBakerJobData *next, *prev;
  90         DerivedMesh *lores_dm, *hires_dm;
  91         int simple, lvl, tot_lvl;
  92 } MultiresBakerJobData;
  93
  94 /* data passing to multires-baker job */
  95 typedef struct {
  96         ListBase data;
  97         int bake_clear, bake_filter;
  98         short mode, use_lores_mesh;
  99 } MultiresBakeJob;
 100
 101 static int multiresbake_check(bContext *C, wmOperator *op)
 102 {
 103         Scene *scene = CTX_data_scene(C);
 104         Object *ob;
 105         Mesh *me;
 106         MultiresModifierData *mmd;
 107         int ok = 1, a;
 108
 109         CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
 110         {
 111                 ob = base->object;
 112
 113                 if (ob->type != OB_MESH) {
 114                         BKE_report(op->reports, RPT_ERROR, "Baking of multires data only works with an active mesh object");
 115
 116                         ok = 0;
 117                         break;
 118                 }
 119
 120                 me = (Mesh *)ob->data;
 121                 mmd = get_multires_modifier(scene, ob, 0);
 122
 123                 /* Multi-resolution should be and be last in the stack */
 124                 if (ok && mmd) {
 125                         ModifierData *md;
 126
 127                         ok = mmd->totlvl > 0;
 128
 129                         for (md = (ModifierData *)mmd->modifier.next; md && ok; md = md->next) {
 130                                 if (modifier_isEnabled(scene, md, eModifierMode_Realtime)) {
 131                                         ok = 0;
 132                                 }
 133                         }
 134                 }
 135                 else ok = 0;
 136
 137                 if (!ok) {
 138                         BKE_report(op->reports, RPT_ERROR, "Multires data baking requires multi-resolution object");
 139
 140                         break;
 141                 }
 142
 143                 if (mmd->lvl == 0) {
 144                         BKE_report(op->reports, RPT_ERROR, "Multires data baking is not supported for preview subdivision level 0");
 145
 146                         break;
 147                 }
 148
 149                 if (!me->mtpoly) {
 150                         BKE_report(op->reports, RPT_ERROR, "Mesh should be unwrapped before multires data baking");
 151
 152                         ok = 0;
 153                 }
 154                 else {
 155                         a = me->totpoly;
 156                         while (ok && a--) {
 157                                 Image *ima = me->mtpoly[a].tpage;
 158
 159                                 if (!ima) {
 160                                         BKE_report(op->reports, RPT_ERROR, "You should have active texture to use multires baker");
 161
 162                                         ok = 0;
 163                                 }
 164                                 else {
 165                                         ImBuf *ibuf = BKE_image_acquire_ibuf(ima, NULL, NULL);
 166
 167                                         if (!ibuf) {
 168                                                 BKE_report(op->reports, RPT_ERROR, "Baking should happen to image with image buffer");
 169
 170                                                 ok = 0;
 171                                         }
 172                                         else {
 173                                                 if (ibuf->rect == NULL && ibuf->rect_float == NULL)
 174                                                         ok = 0;
 175
 176                                                 if (ibuf->rect_float && !(ibuf->channels == 0 || ibuf->channels == 4))
 177                                                         ok = 0;
 178
 179                                                 if (!ok)
 180                                                         BKE_report(op->reports, RPT_ERROR, "Baking to unsupported image type");
 181                                         }
 182
 183                                         BKE_image_release_ibuf(ima, ibuf, NULL);
 184                                 }
 185                         }
 186                 }
 187
 188                 if (!ok)
 189                         break;
 190         }
 191         CTX_DATA_END;
 192
 193         return ok;
 194 }
 195
 196 static DerivedMesh *multiresbake_create_loresdm(Scene *scene, Object *ob, int *lvl)
 197 {
 198         DerivedMesh *dm;
 199         MultiresModifierData *mmd = get_multires_modifier(scene, ob, 0);
 200         Mesh *me = (Mesh *)ob->data;
 201
 202         *lvl = mmd->lvl;
 203
 204         if (*lvl == 0) {
 205                 DerivedMesh *tmp_dm = CDDM_from_mesh(me, ob);
 206                 dm = CDDM_copy(tmp_dm);
 207                 tmp_dm->release(tmp_dm);
 208         }
 209         else {
 210                 MultiresModifierData tmp_mmd = *mmd;
 211                 DerivedMesh *cddm = CDDM_from_mesh(me, ob);
 212
 213                 tmp_mmd.lvl = *lvl;
 214                 tmp_mmd.sculptlvl = *lvl;
 215                 dm = multires_make_derived_from_derived(cddm, &tmp_mmd, ob, 0);
 216                 cddm->release(cddm);
 217         }
 218
 219         return dm;
 220 }
 221
 222 static DerivedMesh *multiresbake_create_hiresdm(Scene *scene, Object *ob, int *lvl, int *simple)
 223 {
 224         Mesh *me = (Mesh *)ob->data;
 225         MultiresModifierData *mmd = get_multires_modifier(scene, ob, 0);
 226         MultiresModifierData tmp_mmd = *mmd;
 227         DerivedMesh *cddm = CDDM_from_mesh(me, ob);
 228         DerivedMesh *dm;
 229
 230         *lvl = mmd->totlvl;
 231         *simple = mmd->simple;
 232
 233         tmp_mmd.lvl = mmd->totlvl;
 234         tmp_mmd.sculptlvl = mmd->totlvl;
 235         dm = multires_make_derived_from_derived(cddm, &tmp_mmd, ob, 0);
 236         cddm->release(cddm);
 237
 238         return dm;
 239 }
 240
 241 static void clear_images(MTFace *mtface, int totface)
 242 {
 243         int a;
 244         const float vec_alpha[4] = {0.0f, 0.0f, 0.0f, 0.0f};
 245         const float vec_solid[4] = {0.0f, 0.0f, 0.0f, 1.0f};
 246
 247         for (a = 0; a < totface; a++)
 248                 mtface[a].tpage->id.flag &= ~LIB_DOIT;
 249
 250         for (a = 0; a < totface; a++) {
 251                 Image *ima = mtface[a].tpage;
 252
 253                 if ((ima->id.flag & LIB_DOIT) == 0) {
 254                         ImBuf *ibuf = BKE_image_acquire_ibuf(ima, NULL, NULL);
 255
 256                         IMB_rectfill(ibuf, (ibuf->planes == R_IMF_PLANES_RGBA) ? vec_alpha : vec_solid);
 257                         ima->id.flag |= LIB_DOIT;
 258
 259                         BKE_image_release_ibuf(ima, ibuf, NULL);
 260                 }
 261         }
 262
 263         for (a = 0; a < totface; a++)
 264                 mtface[a].tpage->id.flag &= ~LIB_DOIT;
 265 }
 266
 267 static int multiresbake_image_exec_locked(bContext *C, wmOperator *op)
 268 {
 269         Object *ob;
 270         Scene *scene = CTX_data_scene(C);
 271         int objects_baked = 0;
 272
 273         if (!multiresbake_check(C, op))
 274                 return OPERATOR_CANCELLED;
 275
 276         if (scene->r.bake_flag & R_BAKE_CLEAR) {  /* clear images */
 277                 CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
 278                 {
 279                         Mesh *me;
 280
 281                         ob = base->object;
 282                         me = (Mesh *)ob->data;
 283
 284                         clear_images(me->mtface, me->totface);
 285                 }
 286                 CTX_DATA_END;
 287         }
 288
 289         CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
 290         {
 291                 MultiresBakeRender bkr = {0};
 292
 293                 ob = base->object;
 294
 295                 multires_force_update(ob);
 296
 297                 /* copy data stored in job descriptor */
 298                 bkr.bake_filter = scene->r.bake_filter;
 299                 bkr.mode = scene->r.bake_mode;
 300                 bkr.use_lores_mesh = scene->r.bake_flag & R_BAKE_LORES_MESH;
 301
 302                 /* create low-resolution DM (to bake to) and hi-resolution DM (to bake from) */
 303                 bkr.lores_dm = multiresbake_create_loresdm(scene, ob, &bkr.lvl);
 304
 305                 if (!bkr.lores_dm)
 306                         continue;
 307
 308                 bkr.hires_dm = multiresbake_create_hiresdm(scene, ob, &bkr.tot_lvl, &bkr.simple);
 309
 310                 RE_multires_bake_images(&bkr);
 311
 312                 BLI_freelistN(&bkr.image);
 313
 314                 bkr.lores_dm->release(bkr.lores_dm);
 315                 bkr.hires_dm->release(bkr.hires_dm);
 316
 317                 objects_baked++;
 318         }
 319         CTX_DATA_END;
 320
 321         if (!objects_baked)
 322                 BKE_report(op->reports, RPT_ERROR, "No objects found to bake from");
 323
 324         return OPERATOR_FINISHED;
 325 }
 326
 327 /* Multiresbake adopted for job-system executing */
 328 static void init_multiresbake_job(bContext *C, MultiresBakeJob *bkj)
 329 {
 330         Scene *scene = CTX_data_scene(C);
 331         Object *ob;
 332
 333         /* backup scene settings, so their changing in UI would take no effect on baker */
 334         bkj->bake_filter = scene->r.bake_filter;
 335         bkj->mode = scene->r.bake_mode;
 336         bkj->use_lores_mesh = scene->r.bake_flag & R_BAKE_LORES_MESH;
 337         bkj->bake_clear = scene->r.bake_flag & R_BAKE_CLEAR;
 338
 339         CTX_DATA_BEGIN (C, Base *, base, selected_editable_bases)
 340         {
 341                 MultiresBakerJobData *data;
 342                 DerivedMesh *lores_dm;
 343                 int lvl;
 344                 ob = base->object;
 345
 346                 multires_force_update(ob);
 347
 348                 lores_dm = multiresbake_create_loresdm(scene, ob, &lvl);
 349                 if (!lores_dm)
 350                         continue;
 351
 352                 data = MEM_callocN(sizeof(MultiresBakerJobData), "multiresBaker derivedMesh_data");
 353                 data->lores_dm = lores_dm;
 354                 data->lvl = lvl;
 355                 data->hires_dm = multiresbake_create_hiresdm(scene, ob, &data->tot_lvl, &data->simple);
 356
 357                 BLI_addtail(&bkj->data, data);
 358         }
 359         CTX_DATA_END;
 360 }
 361
 362 static void multiresbake_startjob(void *bkv, short *stop, short *do_update, float *progress)
 363 {
 364         MultiresBakerJobData *data;
 365         MultiresBakeJob *bkj = bkv;
 366         int baked_objects = 0, tot_obj;
 367
 368         tot_obj = BLI_countlist(&bkj->data);
 369
 370         if (bkj->bake_clear) {  /* clear images */
 371                 for (data = bkj->data.first; data; data = data->next) {
 372                         DerivedMesh *dm = data->lores_dm;
 373                         MTFace *mtface = CustomData_get_layer(&dm->faceData, CD_MTFACE);
 374
 375                         clear_images(mtface, dm->getNumTessFaces(dm));
 376                 }
 377         }
 378
 379         for (data = bkj->data.first; data; data = data->next) {
 380                 MultiresBakeRender bkr = {0};
 381
 382                 /* copy data stored in job descriptor */
 383                 bkr.bake_filter = bkj->bake_filter;
 384                 bkr.mode = bkj->mode;
 385                 bkr.use_lores_mesh = bkj->use_lores_mesh;
 386
 387                 /* create low-resolution DM (to bake to) and hi-resolution DM (to bake from) */
 388                 bkr.lores_dm = data->lores_dm;
 389                 bkr.hires_dm = data->hires_dm;
 390                 bkr.tot_lvl = data->tot_lvl;
 391                 bkr.lvl = data->lvl;
 392                 bkr.simple = data->simple;
 393
 394                 /* needed for proper progress bar */
 395                 bkr.tot_obj = tot_obj;
 396                 bkr.baked_objects = baked_objects;
 397
 398                 bkr.stop = stop;
 399                 bkr.do_update = do_update;
 400                 bkr.progress = progress;
 401
 402                 RE_multires_bake_images(&bkr);
 403
 404                 BLI_freelistN(&bkr.image);
 405
 406                 baked_objects++;
 407         }
 408 }
 409
 410 static void multiresbake_freejob(void *bkv)
 411 {
 412         MultiresBakeJob *bkj = bkv;
 413         MultiresBakerJobData *data, *next;
 414
 415         data = bkj->data.first;
 416         while (data) {
 417                 next = data->next;
 418                 data->lores_dm->release(data->lores_dm);
 419                 data->hires_dm->release(data->hires_dm);
 420                 MEM_freeN(data);
 421                 data = next;
 422         }
 423
 424         MEM_freeN(bkj);
 425 }
 426
 427 static int multiresbake_image_exec(bContext *C, wmOperator *op)
 428 {
 429         Scene *scene = CTX_data_scene(C);
 430         MultiresBakeJob *bkr;
 431         wmJob *wm_job;
 432
 433         if (!multiresbake_check(C, op))
 434                 return OPERATOR_CANCELLED;
 435
 436         bkr = MEM_callocN(sizeof(MultiresBakeJob), "MultiresBakeJob data");
 437         init_multiresbake_job(C, bkr);
 438
 439         if (!bkr->data.first) {
 440                 BKE_report(op->reports, RPT_ERROR, "No objects found to bake from");
 441                 return OPERATOR_CANCELLED;
 442         }
 443
 444         /* setup job */
 445         wm_job = WM_jobs_get(CTX_wm_manager(C), CTX_wm_window(C), scene, "Multires Bake",
 446                              WM_JOB_EXCL_RENDER | WM_JOB_PRIORITY | WM_JOB_PROGRESS, WM_JOB_TYPE_OBJECT_BAKE_TEXTURE);
 447         WM_jobs_customdata_set(wm_job, bkr, multiresbake_freejob);
 448         WM_jobs_timer(wm_job, 0.2, NC_IMAGE, 0); /* TODO - only draw bake image, can we enforce this */
 449         WM_jobs_callbacks(wm_job, multiresbake_startjob, NULL, NULL, NULL);
 450
 451         G.is_break = FALSE;
 452
 453         WM_jobs_start(CTX_wm_manager(C), wm_job);
 454         WM_cursor_wait(0);
 455
 456         /* add modal handler for ESC */
 457         WM_event_add_modal_handler(C, op);
 458
 459         return OPERATOR_RUNNING_MODAL;
 460 }
 461
 462 /* ****************** render BAKING ********************** */
 463
 464 /* threaded break test */
 465 static int thread_break(void *UNUSED(arg))
 466 {
 467         return G.is_break;
 468 }
 469
 470 typedef struct BakeRender {
 471         Render *re;
 472         Main *main;
 473         Scene *scene;
 474         struct Object *actob;
 475         int result, ready;
 476
 477         ReportList *reports;
 478
 479         short *stop;
 480         short *do_update;
 481         float *progress;
 482
 483         ListBase threads;
 484
 485         /* backup */
 486         short prev_wo_amb_occ;
 487         short prev_r_raytrace;
 488
 489         /* for redrawing */
 490         ScrArea *sa;
 491 } BakeRender;
 492
 493 /* use by exec and invoke */
 494 static int test_bake_internal(bContext *C, ReportList *reports)
 495 {
 496         Scene *scene = CTX_data_scene(C);
 497
 498         if ((scene->r.bake_flag & R_BAKE_TO_ACTIVE) && CTX_data_active_object(C) == NULL) {
 499                 BKE_report(reports, RPT_ERROR, "No active object");
 500         }
 501         else if (scene->r.bake_mode == RE_BAKE_AO && scene->world == NULL) {
 502                 BKE_report(reports, RPT_ERROR, "No world set up");
 503         }
 504         else {
 505                 return 1;
 506         }
 507
 508         return 0;
 509 }
 510
 511 static void init_bake_internal(BakeRender *bkr, bContext *C)
 512 {
 513         Scene *scene = CTX_data_scene(C);
 514         bScreen *sc = CTX_wm_screen(C);
 515
 516         /* get editmode results */
 517         ED_object_exit_editmode(C, 0);  /* 0 = does not exit editmode */
 518
 519         bkr->sa = sc ? BKE_screen_find_big_area(sc, SPACE_IMAGE, 10) : NULL; /* can be NULL */
 520         bkr->main = CTX_data_main(C);
 521         bkr->scene = scene;
 522         bkr->actob = (scene->r.bake_flag & R_BAKE_TO_ACTIVE) ? OBACT : NULL;
 523         bkr->re = RE_NewRender("_Bake View_");
 524
 525         if (scene->r.bake_mode == RE_BAKE_AO) {
 526                 /* If raytracing or AO is disabled, switch it on temporarily for baking. */
 527                 bkr->prev_wo_amb_occ = (scene->world->mode & WO_AMB_OCC) != 0;
 528                 scene->world->mode |= WO_AMB_OCC;
 529         }
 530         if (scene->r.bake_mode == RE_BAKE_AO || bkr->actob) {
 531                 bkr->prev_r_raytrace = (scene->r.mode & R_RAYTRACE) != 0;
 532                 scene->r.mode |= R_RAYTRACE;
 533         }
 534 }
 535
 536 static void finish_bake_internal(BakeRender *bkr)
 537 {
 538         Image *ima;
 539
 540         RE_Database_Free(bkr->re);
 541
 542         /* restore raytrace and AO */
 543         if (bkr->scene->r.bake_mode == RE_BAKE_AO)
 544                 if (bkr->prev_wo_amb_occ == 0)
 545                         bkr->scene->world->mode &= ~WO_AMB_OCC;
 546
 547         if (bkr->scene->r.bake_mode == RE_BAKE_AO || bkr->actob)
 548                 if (bkr->prev_r_raytrace == 0)
 549                         bkr->scene->r.mode &= ~R_RAYTRACE;
 550
 551         /* force OpenGL reload and mipmap recalc */
 552         for (ima = G.main->image.first; ima; ima = ima->id.next) {
 553                 ImBuf *ibuf = BKE_image_acquire_ibuf(ima, NULL, NULL);
 554
 555                 /* some of the images could have been changed during bake,
 556                  * so recreate mipmaps regardless bake result status
 557                  */
 558                 if (ima->ok == IMA_OK_LOADED) {
 559                         if (ibuf) {
 560                                 if (ibuf->userflags & IB_BITMAPDIRTY) {
 561                                         GPU_free_image(ima);
 562                                         imb_freemipmapImBuf(ibuf);
 563                                 }
 564
 565                                 /* invalidate display buffers for changed images */
 566                                 if (ibuf->userflags & IB_BITMAPDIRTY)
 567                                         ibuf->userflags |= IB_DISPLAY_BUFFER_INVALID;
 568                         }
 569                 }
 570
 571                 /* freed when baking is done, but if its canceled we need to free here */
 572                 if (ibuf) {
 573                         if (ibuf->userdata) {
 574                                 MEM_freeN(ibuf->userdata);
 575                                 ibuf->userdata = NULL;
 576                         }
 577                 }
 578
 579                 BKE_image_release_ibuf(ima, ibuf, NULL);
 580         }
 581 }
 582
 583 static void *do_bake_render(void *bake_v)
 584 {
 585         BakeRender *bkr = bake_v;
 586
 587         bkr->result = RE_bake_shade_all_selected(bkr->re, bkr->scene->r.bake_mode, bkr->actob, NULL, bkr->progress);
 588         bkr->ready = 1;
 589
 590         return NULL;
 591 }
 592
 593 static void bake_startjob(void *bkv, short *stop, short *do_update, float *progress)
 594 {
 595         BakeRender *bkr = bkv;
 596         Scene *scene = bkr->scene;
 597         Main *bmain = bkr->main;
 598
 599         bkr->stop = stop;
 600         bkr->do_update = do_update;
 601         bkr->progress = progress;
 602
 603         RE_test_break_cb(bkr->re, NULL, thread_break);
 604         G.is_break = FALSE;   /* blender_test_break uses this global */
 605
 606         RE_Database_Baking(bkr->re, bmain, scene, scene->lay, scene->r.bake_mode, bkr->actob);
 607
 608         /* baking itself is threaded, cannot use test_break in threads. we also update optional imagewindow */
 609         bkr->result = RE_bake_shade_all_selected(bkr->re, scene->r.bake_mode, bkr->actob, bkr->do_update, bkr->progress);
 610 }
 611
 612 static void bake_update(void *bkv)
 613 {
 614         BakeRender *bkr = bkv;
 615
 616         if (bkr->sa && bkr->sa->spacetype == SPACE_IMAGE) { /* in case the user changed while baking */
 617                 SpaceImage *sima = bkr->sa->spacedata.first;
 618                 if (sima)
 619                         sima->image = RE_bake_shade_get_image();
 620         }
 621 }
 622
 623 static void bake_freejob(void *bkv)
 624 {
 625         BakeRender *bkr = bkv;
 626         finish_bake_internal(bkr);
 627
 628         if (bkr->result == BAKE_RESULT_NO_OBJECTS)
 629                 BKE_report(bkr->reports, RPT_ERROR, "No objects or images found to bake to");
 630         else if (bkr->result == BAKE_RESULT_FEEDBACK_LOOP)
 631                 BKE_report(bkr->reports, RPT_WARNING, "Feedback loop detected");
 632
 633         MEM_freeN(bkr);
 634         G.is_rendering = FALSE;
 635 }
 636
 637 /* catch esc */
 638 static int objects_bake_render_modal(bContext *C, wmOperator *UNUSED(op), wmEvent *event)
 639 {
 640         /* no running blender, remove handler and pass through */
 641         if (0 == WM_jobs_test(CTX_wm_manager(C), CTX_data_scene(C), WM_JOB_TYPE_OBJECT_BAKE_TEXTURE))
 642                 return OPERATOR_FINISHED | OPERATOR_PASS_THROUGH;
 643
 644         /* running render */
 645         switch (event->type) {
 646                 case ESCKEY:
 647                         return OPERATOR_RUNNING_MODAL;
 648                         break;
 649         }
 650         return OPERATOR_PASS_THROUGH;
 651 }
 652
 653 static int is_multires_bake(Scene *scene)
 654 {
 655         if (ELEM(scene->r.bake_mode, RE_BAKE_NORMALS, RE_BAKE_DISPLACEMENT))
 656                 return scene->r.bake_flag & R_BAKE_MULTIRES;
 657
 658         return 0;
 659 }
 660
 661 static int objects_bake_render_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(_event))
 662 {
 663         Scene *scene = CTX_data_scene(C);
 664         int result = OPERATOR_CANCELLED;
 665
 666         if (is_multires_bake(scene)) {
 667                 result = multiresbake_image_exec(C, op);
 668         }
 669         else {
 670                 /* only one render job at a time */
 671                 if (WM_jobs_test(CTX_wm_manager(C), scene, WM_JOB_TYPE_OBJECT_BAKE_TEXTURE))
 672                         return OPERATOR_CANCELLED;
 673
 674                 if (test_bake_internal(C, op->reports) == 0) {
 675                         return OPERATOR_CANCELLED;
 676                 }
 677                 else {
 678                         BakeRender *bkr = MEM_callocN(sizeof(BakeRender), "render bake");
 679                         wmJob *wm_job;
 680
 681                         init_bake_internal(bkr, C);
 682                         bkr->reports = op->reports;
 683
 684                         /* setup job */
 685                         wm_job = WM_jobs_get(CTX_wm_manager(C), CTX_wm_window(C), scene, "Texture Bake",
 686                                              WM_JOB_EXCL_RENDER | WM_JOB_PRIORITY | WM_JOB_PROGRESS, WM_JOB_TYPE_OBJECT_BAKE_TEXTURE);
 687                         WM_jobs_customdata_set(wm_job, bkr, bake_freejob);
 688                         WM_jobs_timer(wm_job, 0.2, NC_IMAGE, 0); /* TODO - only draw bake image, can we enforce this */
 689                         WM_jobs_callbacks(wm_job, bake_startjob, NULL, bake_update, NULL);
 690
 691                         G.is_break = FALSE;
 692                         G.is_rendering = TRUE;
 693
 694                         WM_jobs_start(CTX_wm_manager(C), wm_job);
 695
 696                         WM_cursor_wait(0);
 697
 698                         /* add modal handler for ESC */
 699                         WM_event_add_modal_handler(C, op);
 700                 }
 701
 702                 result = OPERATOR_RUNNING_MODAL;
 703         }
 704
 705         WM_event_add_notifier(C, NC_SCENE | ND_RENDER_RESULT, scene);
 706
 707         return result;
 708 }
 709
 710
 711 static int bake_image_exec(bContext *C, wmOperator *op)
 712 {
 713         Main *bmain = CTX_data_main(C);
 714         Scene *scene = CTX_data_scene(C);
 715         int result = OPERATOR_CANCELLED;
 716
 717         if (is_multires_bake(scene)) {
 718                 result = multiresbake_image_exec_locked(C, op);
 719         }
 720         else {
 721                 if (test_bake_internal(C, op->reports) == 0) {
 722                         return OPERATOR_CANCELLED;
 723                 }
 724                 else {
 725                         ListBase threads;
 726                         BakeRender bkr = {NULL};
 727
 728                         init_bake_internal(&bkr, C);
 729                         bkr.reports = op->reports;
 730
 731                         RE_test_break_cb(bkr.re, NULL, thread_break);
 732                         G.is_break = FALSE;   /* blender_test_break uses this global */
 733
 734                         RE_Database_Baking(bkr.re, bmain, scene, scene->lay, scene->r.bake_mode, (scene->r.bake_flag & R_BAKE_TO_ACTIVE) ? OBACT : NULL);
 735
 736                         /* baking itself is threaded, cannot use test_break in threads  */
 737                         BLI_init_threads(&threads, do_bake_render, 1);
 738                         bkr.ready = 0;
 739                         BLI_insert_thread(&threads, &bkr);
 740
 741                         while (bkr.ready == 0) {
 742                                 PIL_sleep_ms(50);
 743                                 if (bkr.ready)
 744                                         break;
 745
 746                                 /* used to redraw in 2.4x but this is just for exec in 2.5 */
 747                                 if (!G.background)
 748                                         blender_test_break();
 749                         }
 750                         BLI_end_threads(&threads);
 751
 752                         if (bkr.result == BAKE_RESULT_NO_OBJECTS)
 753                                 BKE_report(op->reports, RPT_ERROR, "No valid images found to bake to");
 754                         else if (bkr.result == BAKE_RESULT_FEEDBACK_LOOP)
 755                                 BKE_report(op->reports, RPT_ERROR, "Feedback loop detected");
 756
 757                         finish_bake_internal(&bkr);
 758
 759                         result = OPERATOR_FINISHED;
 760                 }
 761         }
 762
 763         WM_event_add_notifier(C, NC_SCENE | ND_RENDER_RESULT, scene);
 764
 765         return result;
 766 }
 767
 768 void OBJECT_OT_bake_image(wmOperatorType *ot)
 769 {
 770         /* identifiers */
 771         ot->name = "Bake";
 772         ot->description = "Bake image textures of selected objects";
 773         ot->idname = "OBJECT_OT_bake_image";
 774
 775         /* api callbacks */
 776         ot->exec = bake_image_exec;
 777         ot->invoke = objects_bake_render_invoke;
 778         ot->modal = objects_bake_render_modal;
 779 }