release/scripts/ui/properties_render.py

   1 # ##### BEGIN GPL LICENSE BLOCK #####
   2 #
   3 #  This program is free software; you can redistribute it and/or
   4 #  modify it under the terms of the GNU General Public License
   5 #  as published by the Free Software Foundation; either version 2
   6 #  of the License, or (at your option) any later version.
   7 #
   8 #  This program is distributed in the hope that it will be useful,
   9 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 #  GNU General Public License for more details.
  12 #
  13 #  You should have received a copy of the GNU General Public License
  14 #  along with this program; if not, write to the Free Software Foundation,
  15 #  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16 #
  17 # ##### END GPL LICENSE BLOCK #####
  18
  19 # <pep8 compliant>
  20 import bpy
  21
  22 narrowui = 180
  23
  24
  25 class RENDER_MT_presets(bpy.types.Menu):
  26     bl_label = "Render Presets"
  27     preset_subdir = "render"
  28     preset_operator = "script.python_file_run"
  29     draw = bpy.types.Menu.draw_preset
  30
  31
  32 class RENDER_MT_ffmpeg_presets(bpy.types.Menu):
  33     bl_label = "FFMPEG Presets"
  34     preset_subdir = "ffmpeg"
  35     preset_operator = "script.python_file_run"
  36     draw = bpy.types.Menu.draw_preset
  37
  38
  39 class RenderButtonsPanel(bpy.types.Panel):
  40     bl_space_type = 'PROPERTIES'
  41     bl_region_type = 'WINDOW'
  42     bl_context = "render"
  43     # COMPAT_ENGINES must be defined in each subclass, external engines can add themselves here
  44
  45     def poll(self, context):
  46         rd = context.scene.render
  47         return (context.scene and rd.use_game_engine is False) and (rd.engine in self.COMPAT_ENGINES)
  48
  49
  50 class RENDER_PT_render(RenderButtonsPanel):
  51     bl_label = "Render"
  52     COMPAT_ENGINES = {'BLENDER_RENDER'}
  53
  54     def draw(self, context):
  55         layout = self.layout
  56
  57         rd = context.scene.render
  58         wide_ui = context.region.width > narrowui
  59
  60         split = layout.split()
  61
  62         col = split.column()
  63         col.operator("render.render", text="Image", icon='RENDER_STILL')
  64
  65         if wide_ui:
  66             col = split.column()
  67         col.operator("render.render", text="Animation", icon='RENDER_ANIMATION').animation = True
  68
  69         layout.prop(rd, "display_mode", text="Display")
  70
  71
  72 class RENDER_PT_layers(RenderButtonsPanel):
  73     bl_label = "Layers"
  74     bl_default_closed = True
  75     COMPAT_ENGINES = {'BLENDER_RENDER'}
  76
  77     def draw(self, context):
  78         layout = self.layout
  79
  80         scene = context.scene
  81         rd = scene.render
  82         wide_ui = context.region.width > narrowui
  83
  84         row = layout.row()
  85         row.template_list(rd, "layers", rd, "active_layer_index", rows=2)
  86
  87         col = row.column(align=True)
  88         col.operator("scene.render_layer_add", icon='ZOOMIN', text="")
  89         col.operator("scene.render_layer_remove", icon='ZOOMOUT', text="")
  90
  91         rl = rd.layers[rd.active_layer_index]
  92
  93         if rl:
  94             layout.prop(rl, "name")
  95
  96         split = layout.split()
  97
  98         col = split.column()
  99         col.prop(scene, "visible_layers", text="Scene")
 100         if wide_ui:
 101             col = split.column()
 102         col.prop(rl, "visible_layers", text="Layer")
 103
 104         layout.prop(rl, "light_override", text="Light")
 105         layout.prop(rl, "material_override", text="Material")
 106
 107         layout.separator()
 108         layout.label(text="Include:")
 109
 110         split = layout.split()
 111
 112         col = split.column()
 113         col.prop(rl, "zmask")
 114         row = col.row()
 115         row.prop(rl, "zmask_negate", text="Negate")
 116         row.active = rl.zmask
 117         col.prop(rl, "all_z")
 118
 119         col = split.column()
 120         col.prop(rl, "solid")
 121         col.prop(rl, "halo")
 122         col.prop(rl, "ztransp")
 123         col.prop(rl, "sky")
 124
 125         col = split.column()
 126         col.prop(rl, "edge")
 127         col.prop(rl, "strand")
 128         col.prop(rl, "freestyle")
 129
 130         if rl.zmask:
 131             split = layout.split()
 132             split.label(text="Zmask Layers:")
 133             split.column().prop(rl, "zmask_layers", text="")
 134
 135         layout.separator()
 136
 137         split = layout.split()
 138
 139         col = split.column()
 140         col.label(text="Passes:")
 141         col.prop(rl, "pass_combined")
 142         col.prop(rl, "pass_z")
 143         col.prop(rl, "pass_vector")
 144         col.prop(rl, "pass_normal")
 145         col.prop(rl, "pass_uv")
 146         col.prop(rl, "pass_mist")
 147         col.prop(rl, "pass_object_index")
 148         col.prop(rl, "pass_color")
 149
 150         if wide_ui:
 151             col = split.column()
 152         col.label()
 153         col.prop(rl, "pass_diffuse")
 154         row = col.row()
 155         row.prop(rl, "pass_specular")
 156         row.prop(rl, "pass_specular_exclude", text="", icon='X')
 157         row = col.row()
 158         row.prop(rl, "pass_shadow")
 159         row.prop(rl, "pass_shadow_exclude", text="", icon='X')
 160         row = col.row()
 161         row.prop(rl, "pass_emit")
 162         row.prop(rl, "pass_emit_exclude", text="", icon='X')
 163         row = col.row()
 164         row.prop(rl, "pass_ao")
 165         row.prop(rl, "pass_ao_exclude", text="", icon='X')
 166         row = col.row()
 167         row.prop(rl, "pass_environment")
 168         row.prop(rl, "pass_environment_exclude", text="", icon='X')
 169         row = col.row()
 170         row.prop(rl, "pass_indirect")
 171         row.prop(rl, "pass_indirect_exclude", text="", icon='X')
 172         row = col.row()
 173         row.prop(rl, "pass_reflection")
 174         row.prop(rl, "pass_reflection_exclude", text="", icon='X')
 175         row = col.row()
 176         row.prop(rl, "pass_refraction")
 177         row.prop(rl, "pass_refraction_exclude", text="", icon='X')
 178
 179         if rl.freestyle:
 180             layout.separator()
 181
 182             split = layout.split()
 183
 184             col = split.column()
 185             col.label(text="Freestyle:")
 186             freestyle = rl.freestyle_settings
 187             col.prop(freestyle, "sphere_radius", text="Sphere Radius")
 188             col.prop(freestyle, "ridges_and_valleys", text="Ridges and Valleys")
 189             col.prop(freestyle, "suggestive_contours", text="Suggestive Contours")
 190             col.prop(freestyle, "dkr_epsilon", text="Dkr Epsilon")
 191
 192             col.operator("scene.freestyle_module_add", text="Add Style Module")
 193
 194             for i, module in enumerate(freestyle.modules):
 195                     box = layout.box()
 196                     box.set_context_pointer("freestyle_module", module)
 197                     row = box.row(align=True)
 198                     row.prop(module, "is_displayed", text="")
 199                     row.prop(module, "module_path", text="")
 200                     row.operator("scene.freestyle_module_remove", icon='X', text="")
 201                     props = row.operator("scene.freestyle_module_move_up", icon='MOVE_UP_VEC', text="")
 202                     props.active = (i > 0)
 203                     props = row.operator("scene.freestyle_module_move_down", icon='MOVE_DOWN_VEC', text="")
 204                     props.active = (i < len(freestyle.modules) - 1)
 205
 206
 207 class RENDER_PT_shading(RenderButtonsPanel):
 208     bl_label = "Shading"
 209     COMPAT_ENGINES = {'BLENDER_RENDER'}
 210
 211     def draw(self, context):
 212         layout = self.layout
 213
 214         rd = context.scene.render
 215         wide_ui = context.region.width > narrowui
 216
 217         split = layout.split()
 218
 219         col = split.column()
 220         col.prop(rd, "render_textures", text="Textures")
 221         col.prop(rd, "render_shadows", text="Shadows")
 222         col.prop(rd, "render_sss", text="Subsurface Scattering")
 223         col.prop(rd, "render_envmaps", text="Environment Map")
 224
 225         if wide_ui:
 226             col = split.column()
 227         col.prop(rd, "render_raytracing", text="Ray Tracing")
 228         col.prop(rd, "color_management")
 229         col.prop(rd, "alpha_mode", text="Alpha")
 230
 231
 232 class RENDER_PT_performance(RenderButtonsPanel):
 233     bl_label = "Performance"
 234     bl_default_closed = True
 235     COMPAT_ENGINES = {'BLENDER_RENDER'}
 236
 237     def draw(self, context):
 238         layout = self.layout
 239
 240         rd = context.scene.render
 241         wide_ui = context.region.width > narrowui
 242
 243         split = layout.split()
 244
 245         col = split.column()
 246         col.label(text="Threads:")
 247         col.row().prop(rd, "threads_mode", expand=True)
 248         sub = col.column()
 249         sub.enabled = rd.threads_mode == 'FIXED'
 250         sub.prop(rd, "threads")
 251         sub = col.column(align=True)
 252         sub.label(text="Tiles:")
 253         sub.prop(rd, "parts_x", text="X")
 254         sub.prop(rd, "parts_y", text="Y")
 255
 256         if wide_ui:
 257             col = split.column()
 258         col.label(text="Memory:")
 259         sub = col.column()
 260         sub.enabled = not (rd.use_border or rd.full_sample)
 261         sub.prop(rd, "save_buffers")
 262         sub = col.column()
 263         sub.active = rd.use_compositing
 264         sub.prop(rd, "free_image_textures")
 265         sub = col.column()
 266         sub.active = rd.render_raytracing
 267         sub.label(text="Acceleration structure:")
 268         sub.prop(rd, "raytrace_structure", text="")
 269         if rd.raytrace_structure == 'OCTREE':
 270             sub.prop(rd, "octree_resolution", text="Resolution")
 271         else:
 272             sub.prop(rd, "use_instances", text="Instances")
 273         sub.prop(rd, "use_local_coords", text="Local Coordinates")
 274
 275
 276 class RENDER_PT_post_processing(RenderButtonsPanel):
 277     bl_label = "Post Processing"
 278     bl_default_closed = True
 279     COMPAT_ENGINES = {'BLENDER_RENDER'}
 280
 281     def draw(self, context):
 282         layout = self.layout
 283
 284         rd = context.scene.render
 285         wide_ui = context.region.width > narrowui
 286
 287         split = layout.split()
 288
 289         col = split.column()
 290         col.prop(rd, "use_compositing")
 291         col.prop(rd, "use_sequencer")
 292
 293         if wide_ui:
 294             col = split.column()
 295         col.prop(rd, "dither_intensity", text="Dither", slider=True)
 296
 297         layout.separator()
 298
 299         split = layout.split()
 300
 301         col = split.column()
 302         col.prop(rd, "fields", text="Fields")
 303         sub = col.column()
 304         sub.active = rd.fields
 305         sub.row().prop(rd, "field_order", expand=True)
 306         sub.prop(rd, "fields_still", text="Still")
 307
 308
 309         if wide_ui:
 310             col = split.column()
 311         else:
 312             col.separator()
 313         col.prop(rd, "edge")
 314         sub = col.column()
 315         sub.active = rd.edge
 316         sub.prop(rd, "edge_threshold", text="Threshold", slider=True)
 317         sub.prop(rd, "edge_color", text="")
 318
 319         layout.separator()
 320
 321         split = layout.split()
 322         col = split.column()
 323         col.prop(rd, "freestyle", text="Freestyle")
 324
 325
 326 class RENDER_PT_output(RenderButtonsPanel):
 327     bl_label = "Output"
 328     COMPAT_ENGINES = {'BLENDER_RENDER'}
 329
 330     def draw(self, context):
 331         layout = self.layout
 332
 333         rd = context.scene.render
 334         wide_ui = context.region.width > narrowui
 335
 336         layout.prop(rd, "output_path", text="")
 337
 338         split = layout.split()
 339         col = split.column()
 340         col.prop(rd, "file_format", text="")
 341         col.row().prop(rd, "color_mode", text="Color", expand=True)
 342
 343         if wide_ui:
 344             col = split.column()
 345         col.prop(rd, "use_file_extension")
 346         col.prop(rd, "use_overwrite")
 347         col.prop(rd, "use_placeholder")
 348
 349         if rd.file_format in ('AVI_JPEG', 'JPEG'):
 350             split = layout.split()
 351             split.prop(rd, "file_quality", slider=True)
 352
 353         elif rd.file_format == 'OPEN_EXR':
 354             split = layout.split()
 355
 356             col = split.column()
 357             col.label(text="Codec:")
 358             col.prop(rd, "exr_codec", text="")
 359
 360             if wide_ui:
 361                 subsplit = split.split()
 362                 col = subsplit.column()
 363             col.prop(rd, "exr_half")
 364             col.prop(rd, "exr_zbuf")
 365
 366             if wide_ui:
 367                 col = subsplit.column()
 368             col.prop(rd, "exr_preview")
 369
 370         elif rd.file_format == 'JPEG2000':
 371             split = layout.split()
 372             col = split.column()
 373             col.label(text="Depth:")
 374             col.row().prop(rd, "jpeg2k_depth", expand=True)
 375
 376             if wide_ui:
 377                 col = split.column()
 378             col.prop(rd, "jpeg2k_preset", text="")
 379             col.prop(rd, "jpeg2k_ycc")
 380
 381         elif rd.file_format in ('CINEON', 'DPX'):
 382             split = layout.split()
 383             col = split.column()
 384             col.prop(rd, "cineon_log", text="Convert to Log")
 385
 386             if wide_ui:
 387                 col = split.column(align=True)
 388             col.active = rd.cineon_log
 389             col.prop(rd, "cineon_black", text="Black")
 390             col.prop(rd, "cineon_white", text="White")
 391             col.prop(rd, "cineon_gamma", text="Gamma")
 392
 393         elif rd.file_format == 'TIFF':
 394             split = layout.split()
 395             split.prop(rd, "tiff_bit")
 396
 397         elif rd.file_format == 'QUICKTIME_CARBON':
 398             split = layout.split()
 399             split.operator("scene.render_set_quicktime_codec")
 400
 401         elif rd.file_format == 'QUICKTIME_QTKIT':
 402             split = layout.split()
 403             col = split.column()
 404             col.prop(rd, "quicktime_codec_type")
 405             col.prop(rd, "quicktime_codec_spatial_quality", text="Quality")
 406
 407
 408 class RENDER_PT_encoding(RenderButtonsPanel):
 409     bl_label = "Encoding"
 410     bl_default_closed = True
 411     COMPAT_ENGINES = {'BLENDER_RENDER'}
 412
 413     def poll(self, context):
 414         rd = context.scene.render
 415         return rd.file_format in ('FFMPEG', 'XVID', 'H264', 'THEORA')
 416
 417     def draw(self, context):
 418         layout = self.layout
 419
 420         rd = context.scene.render
 421         wide_ui = context.region.width > narrowui
 422
 423         layout.menu("RENDER_MT_ffmpeg_presets", text="Presets")
 424
 425         split = layout.split()
 426
 427         col = split.column()
 428         col.prop(rd, "ffmpeg_format")
 429         if rd.ffmpeg_format in ('AVI', 'QUICKTIME', 'MKV', 'OGG'):
 430             if wide_ui:
 431                 col = split.column()
 432             col.prop(rd, "ffmpeg_codec")
 433         else:
 434             if wide_ui:
 435                 split.label()
 436
 437         split = layout.split()
 438
 439         col = split.column()
 440         col.prop(rd, "ffmpeg_video_bitrate")
 441         if wide_ui:
 442             col = split.column()
 443         col.prop(rd, "ffmpeg_gopsize")
 444
 445         split = layout.split()
 446
 447         col = split.column()
 448         col.label(text="Rate:")
 449         col.prop(rd, "ffmpeg_minrate", text="Minimum")
 450         col.prop(rd, "ffmpeg_maxrate", text="Maximum")
 451         col.prop(rd, "ffmpeg_buffersize", text="Buffer")
 452
 453         if wide_ui:
 454             col = split.column()
 455
 456         col.prop(rd, "ffmpeg_autosplit")
 457         col.label(text="Mux:")
 458         col.prop(rd, "ffmpeg_muxrate", text="Rate")
 459         col.prop(rd, "ffmpeg_packetsize", text="Packet Size")
 460
 461         # Audio:
 462         sub = layout.column()
 463
 464         if rd.ffmpeg_format not in ('MP3'):
 465             sub.prop(rd, "ffmpeg_audio_codec", text="Audio Codec")
 466
 467         sub.separator()
 468
 469         split = sub.split()
 470
 471         col = split.column()
 472         col.prop(rd, "ffmpeg_audio_bitrate")
 473         col.prop(rd, "ffmpeg_audio_mixrate")
 474
 475         if wide_ui:
 476             col = split.column()
 477         col.prop(rd, "ffmpeg_audio_volume", slider=True)
 478
 479
 480 class RENDER_PT_antialiasing(RenderButtonsPanel):
 481     bl_label = "Anti-Aliasing"
 482     COMPAT_ENGINES = {'BLENDER_RENDER'}
 483
 484     def draw_header(self, context):
 485         rd = context.scene.render
 486
 487         self.layout.prop(rd, "antialiasing", text="")
 488
 489     def draw(self, context):
 490         layout = self.layout
 491
 492         rd = context.scene.render
 493         wide_ui = context.region.width > narrowui
 494         layout.active = rd.antialiasing
 495
 496         split = layout.split()
 497
 498         col = split.column()
 499         col.row().prop(rd, "antialiasing_samples", expand=True)
 500         sub = col.row()
 501         sub.enabled = not rd.use_border
 502         sub.prop(rd, "full_sample")
 503
 504         if wide_ui:
 505             col = split.column()
 506         col.prop(rd, "pixel_filter", text="")
 507         col.prop(rd, "filter_size", text="Size")
 508
 509
 510 class RENDER_PT_motion_blur(RenderButtonsPanel):
 511     bl_label = "Full Sample Motion Blur"
 512     bl_default_closed = True
 513     COMPAT_ENGINES = {'BLENDER_RENDER'}
 514
 515     def draw_header(self, context):
 516         rd = context.scene.render
 517
 518         self.layout.prop(rd, "motion_blur", text="")
 519
 520     def draw(self, context):
 521         layout = self.layout
 522
 523         rd = context.scene.render
 524         layout.active = rd.motion_blur
 525
 526         row = layout.row()
 527         row.prop(rd, "motion_blur_samples")
 528
 529
 530 class RENDER_PT_dimensions(RenderButtonsPanel):
 531     bl_label = "Dimensions"
 532     COMPAT_ENGINES = {'BLENDER_RENDER'}
 533
 534     def draw(self, context):
 535         layout = self.layout
 536
 537         scene = context.scene
 538         rd = scene.render
 539         wide_ui = context.region.width > narrowui
 540
 541         row = layout.row().split()
 542         sub = row.row(align=True).split(percentage=0.75)
 543         sub.menu("RENDER_MT_presets", text="Presets")
 544         sub.operator("render.preset_add", text="Add")
 545
 546         split = layout.split()
 547
 548         col = split.column()
 549         sub = col.column(align=True)
 550         sub.label(text="Resolution:")
 551         sub.prop(rd, "resolution_x", text="X")
 552         sub.prop(rd, "resolution_y", text="Y")
 553         sub.prop(rd, "resolution_percentage", text="")
 554
 555         sub.label(text="Aspect Ratio:")
 556         sub.prop(rd, "pixel_aspect_x", text="X")
 557         sub.prop(rd, "pixel_aspect_y", text="Y")
 558
 559         row = col.row()
 560         row.prop(rd, "use_border", text="Border")
 561         sub = row.row()
 562         sub.active = rd.use_border
 563         sub.prop(rd, "crop_to_border", text="Crop")
 564
 565         if wide_ui:
 566             col = split.column()
 567         sub = col.column(align=True)
 568         sub.label(text="Frame Range:")
 569         sub.prop(scene, "start_frame", text="Start")
 570         sub.prop(scene, "end_frame", text="End")
 571         sub.prop(scene, "frame_step", text="Step")
 572
 573         sub.label(text="Frame Rate:")
 574         sub.prop(rd, "fps")
 575         sub.prop(rd, "fps_base", text="/")
 576
 577
 578 class RENDER_PT_stamp(RenderButtonsPanel):
 579     bl_label = "Stamp"
 580     bl_default_closed = True
 581     COMPAT_ENGINES = {'BLENDER_RENDER'}
 582
 583     def draw_header(self, context):
 584         rd = context.scene.render
 585
 586         self.layout.prop(rd, "render_stamp", text="")
 587
 588     def draw(self, context):
 589         layout = self.layout
 590
 591         rd = context.scene.render
 592         wide_ui = context.region.width > narrowui
 593
 594         layout.active = rd.render_stamp
 595
 596         split = layout.split()
 597
 598         col = split.column()
 599         col.prop(rd, "stamp_time", text="Time")
 600         col.prop(rd, "stamp_date", text="Date")
 601         col.prop(rd, "stamp_render_time", text="RenderTime")
 602         col.prop(rd, "stamp_frame", text="Frame")
 603         col.prop(rd, "stamp_scene", text="Scene")
 604         col.prop(rd, "stamp_camera", text="Camera")
 605         col.prop(rd, "stamp_filename", text="Filename")
 606         col.prop(rd, "stamp_marker", text="Marker")
 607         col.prop(rd, "stamp_sequencer_strip", text="Seq. Strip")
 608
 609         if wide_ui:
 610             col = split.column()
 611         col.active = rd.render_stamp
 612         col.prop(rd, "stamp_foreground", slider=True)
 613         col.prop(rd, "stamp_background", slider=True)
 614         col.separator()
 615         col.prop(rd, "stamp_font_size", text="Font Size")
 616
 617         row = layout.split(percentage=0.2)
 618         row.prop(rd, "stamp_note", text="Note")
 619         sub = row.row()
 620         sub.active = rd.stamp_note
 621         sub.prop(rd, "stamp_note_text", text="")
 622
 623
 624 class RENDER_PT_bake(RenderButtonsPanel):
 625     bl_label = "Bake"
 626     bl_default_closed = True
 627     COMPAT_ENGINES = {'BLENDER_RENDER'}
 628
 629     def draw(self, context):
 630         layout = self.layout
 631
 632         rd = context.scene.render
 633         wide_ui = context.region.width > narrowui
 634
 635         layout.operator("object.bake_image", icon='RENDER_STILL')
 636
 637         if wide_ui:
 638             layout.prop(rd, "bake_type")
 639         else:
 640             layout.prop(rd, "bake_type", text="")
 641
 642         if rd.bake_type == 'NORMALS':
 643             if wide_ui:
 644                 layout.prop(rd, "bake_normal_space")
 645             else:
 646                 layout.prop(rd, "bake_normal_space", text="")
 647         elif rd.bake_type in ('DISPLACEMENT', 'AO'):
 648             layout.prop(rd, "bake_normalized")
 649
 650         # col.prop(rd, "bake_aa_mode")
 651         # col.prop(rd, "bake_enable_aa")
 652
 653         layout.separator()
 654
 655         split = layout.split()
 656
 657         col = split.column()
 658         col.prop(rd, "bake_clear")
 659         col.prop(rd, "bake_margin")
 660         col.prop(rd, "bake_quad_split", text="Split")
 661
 662         if wide_ui:
 663             col = split.column()
 664         col.prop(rd, "bake_active")
 665         sub = col.column()
 666         sub.active = rd.bake_active
 667         sub.prop(rd, "bake_distance")
 668         sub.prop(rd, "bake_bias")
 669
 670
 671 classes = [
 672     RENDER_MT_presets,
 673     RENDER_MT_ffmpeg_presets,
 674     RENDER_PT_render,
 675     RENDER_PT_layers,
 676     RENDER_PT_dimensions,
 677     RENDER_PT_antialiasing,
 678     RENDER_PT_motion_blur,
 679     RENDER_PT_shading,
 680     RENDER_PT_output,
 681     RENDER_PT_encoding,
 682     RENDER_PT_performance,
 683     RENDER_PT_post_processing,
 684     RENDER_PT_stamp,
 685     RENDER_PT_bake]
 686
 687
 688 def register():
 689     register = bpy.types.register
 690     for cls in classes:
 691         register(cls)
 692
 693
 694 def unregister():
 695     unregister = bpy.types.unregister
 696     for cls in classes:
 697         unregister(cls)
 698
 699 if __name__ == "__main__":
 700     register()