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Sculpt: Some brushes dont work when dyntopo is enabled #118014

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opened 2024-02-08 20:51:20 +01:00 by Sean Kim · 9 comments
Sean Kim commented 2024-02-08 20:51:20 +01:00
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System Information
Operating system: MacOS Sonoma 14.2
Graphics card: AMD Radeon Pro 5300M 4 GB

Blender Version
Broken: 4.1.0 2024-02-08 00:10 4a50f1d4ee9a
Worked: 4.0.2 2023-12-05 07:41 9be62e85b727

Caused by bb080140c0

Short description of error
The Draw brush appears to make no visible change to the geometry despite subdividing the mesh with Dyntopo enabled. See attached GIFs for comparison:

4.0 4.1
dyntopo_4.0.gif dyntopo_4.1.gif

Exact steps for others to reproduce the error

  1. Open dyntopo_stroke.blend
  2. Make brush stroke on grid using Draw brush
**System Information** Operating system: MacOS Sonoma 14.2 Graphics card: AMD Radeon Pro 5300M 4 GB **Blender Version** Broken: 4.1.0 2024-02-08 00:10 `4a50f1d4ee9a` Worked: 4.0.2 2023-12-05 07:41 `9be62e85b727` Caused by bb080140c0 **Short description of error** The `Draw` brush appears to make no visible change to the geometry despite subdividing the mesh with Dyntopo enabled. See attached GIFs for comparison: |4.0|4.1| |--|--| ![dyntopo_4.0.gif](/attachments/dba04972-f8f5-47bd-a566-2df52be07f58) | ![dyntopo_4.1.gif](/attachments/555b0b16-5bd1-45d2-9354-463267b054f4) **Exact steps for others to reproduce the error** 1. Open `dyntopo_stroke.blend` 2. Make brush stroke on grid using `Draw` brush
dyntopo_4.0.gif
1.6 MiB
dyntopo_4.1.gif
1.3 MiB
dyntopo_stroke.blend
913 KiB
Sean Kim added the
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 labels 2024-02-08 20:51:21 +01:00
Sean Kim commented 2024-02-08 20:54:42 +01:00
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I'm not certain if this is related, but replicating on a build with asserts enabled and attempting to replicate this trips the following assert:

➜  MacOS ./Blender
Color management: using fallback mode for management
Read prefs: "/Users/seankim/Library/Application Support/Blender/4.1/config/userpref.blend"
Color management: scene view "AgX" not found, setting default "Standard".
Read blend: "/Users/seankim/Documents/Blender/dyntopo_stroke.blend"
Color management: scene view "AgX" not found, setting default "Standard".
0   Blender                             0x0000000108476f97 BLI_system_backtrace + 55
1   Blender                             0x0000000108b9f39b _Z23BM_log_original_vert_coP5BMLogP6BMVert + 155
2   Blender                             0x000000010899ddf2 _Z29BKE_pbvh_bmesh_node_save_origP5BMeshP5BMLogP8PBVHNodeb + 482
3   Blender                             0x000000010899c109 _ZN7blender3bke4pbvh21bmesh_update_topologyEP4PBVH22PBVHTopologyUpdateModePKfS6_fbb + 5769
4   Blender                             0x00000001097c8ab5 _ZL22sculpt_topology_updateP6SculptP6ObjectP5BrushP20UnifiedPaintSettingsP17PaintModeSettings + 405
5   Blender                             0x00000001097ccea2 _ZL8do_tiledP6SculptP6ObjectP5BrushP20UnifiedPaintSettingsP17PaintModeSettingsPFvS0_S2_S4_S6_S8_E + 498
6   Blender                             0x00000001097c86f0 _ZL28do_symmetrical_brush_actionsP6SculptP6ObjectPFvS0_S2_P5BrushP20UnifiedPaintSettingsP17PaintModeSettingsES6_S8_ + 1808
7   Blender                             0x00000001097c7ca3 _ZN7blender2ed12sculpt_paintL25sculpt_stroke_update_stepEP8bContextP10wmOperatorPNS1_11PaintStrokeEP10PointerRNA + 5811
8   Blender                             0x00000001097923a4 _ZN7blender2ed12sculpt_paintL27paint_brush_stroke_add_stepEP8bContextP10wmOperatorPNS1_11PaintStrokeEPKff + 2580
9   Blender                             0x0000000109790c61 _ZN7blender2ed12sculpt_paint18paint_stroke_modalEP8bContextP10wmOperatorPK7wmEventPPNS1_11PaintStrokeE + 6465
10  Blender                             0x00000001097c343f _ZN7blender2ed12sculpt_paintL26sculpt_brush_stroke_invokeEP8bContextP10wmOperatorPK7wmEvent + 463
11  Blender                             0x00000001084e58f4 _ZL18wm_operator_invokeP8bContextP14wmOperatorTypePK7wmEventP10PointerRNAP10ReportListbb + 740
12  Blender                             0x00000001084e7c48 _ZL24wm_handler_operator_callP8bContextP8ListBaseP14wmEventHandlerP7wmEventP10PointerRNAPKc + 696
13  Blender                             0x00000001084e65b7 _ZL21wm_handlers_do_internP8bContextP8wmWindowP7wmEventP8ListBase + 1559
14  Blender                             0x00000001084e0a30 _ZL14wm_handlers_doP8bContextP7wmEventP8ListBase + 48
15  Blender                             0x00000001084e0161 _Z20wm_event_do_handlersP8bContext + 3825
16  Blender                             0x00000001084d5050 _Z7WM_mainP8bContext + 32
17  Blender                             0x0000000108350ac0 main + 768
18  dyld                                0x00007ff81916e386 start + 1942
BLI_assert failed: source/blender/bmesh/intern/bmesh_log.cc:930, BM_log_original_vert_co(), at 'BLI_ghash_haskey(entry->modified_verts, key)'
[1]    62524 abort      ./Blender

EDIT: Ignore this assert failure - I'm fairly certain that this is an entirely separate issue from the main regression being tracked here now.

~~I'm not certain if this is related, but replicating on a build with asserts enabled and attempting to replicate this trips the following assert:~~ ``` ➜ MacOS ./Blender Color management: using fallback mode for management Read prefs: "/Users/seankim/Library/Application Support/Blender/4.1/config/userpref.blend" Color management: scene view "AgX" not found, setting default "Standard". Read blend: "/Users/seankim/Documents/Blender/dyntopo_stroke.blend" Color management: scene view "AgX" not found, setting default "Standard". 0 Blender 0x0000000108476f97 BLI_system_backtrace + 55 1 Blender 0x0000000108b9f39b _Z23BM_log_original_vert_coP5BMLogP6BMVert + 155 2 Blender 0x000000010899ddf2 _Z29BKE_pbvh_bmesh_node_save_origP5BMeshP5BMLogP8PBVHNodeb + 482 3 Blender 0x000000010899c109 _ZN7blender3bke4pbvh21bmesh_update_topologyEP4PBVH22PBVHTopologyUpdateModePKfS6_fbb + 5769 4 Blender 0x00000001097c8ab5 _ZL22sculpt_topology_updateP6SculptP6ObjectP5BrushP20UnifiedPaintSettingsP17PaintModeSettings + 405 5 Blender 0x00000001097ccea2 _ZL8do_tiledP6SculptP6ObjectP5BrushP20UnifiedPaintSettingsP17PaintModeSettingsPFvS0_S2_S4_S6_S8_E + 498 6 Blender 0x00000001097c86f0 _ZL28do_symmetrical_brush_actionsP6SculptP6ObjectPFvS0_S2_P5BrushP20UnifiedPaintSettingsP17PaintModeSettingsES6_S8_ + 1808 7 Blender 0x00000001097c7ca3 _ZN7blender2ed12sculpt_paintL25sculpt_stroke_update_stepEP8bContextP10wmOperatorPNS1_11PaintStrokeEP10PointerRNA + 5811 8 Blender 0x00000001097923a4 _ZN7blender2ed12sculpt_paintL27paint_brush_stroke_add_stepEP8bContextP10wmOperatorPNS1_11PaintStrokeEPKff + 2580 9 Blender 0x0000000109790c61 _ZN7blender2ed12sculpt_paint18paint_stroke_modalEP8bContextP10wmOperatorPK7wmEventPPNS1_11PaintStrokeE + 6465 10 Blender 0x00000001097c343f _ZN7blender2ed12sculpt_paintL26sculpt_brush_stroke_invokeEP8bContextP10wmOperatorPK7wmEvent + 463 11 Blender 0x00000001084e58f4 _ZL18wm_operator_invokeP8bContextP14wmOperatorTypePK7wmEventP10PointerRNAP10ReportListbb + 740 12 Blender 0x00000001084e7c48 _ZL24wm_handler_operator_callP8bContextP8ListBaseP14wmEventHandlerP7wmEventP10PointerRNAPKc + 696 13 Blender 0x00000001084e65b7 _ZL21wm_handlers_do_internP8bContextP8wmWindowP7wmEventP8ListBase + 1559 14 Blender 0x00000001084e0a30 _ZL14wm_handlers_doP8bContextP7wmEventP8ListBase + 48 15 Blender 0x00000001084e0161 _Z20wm_event_do_handlersP8bContext + 3825 16 Blender 0x00000001084d5050 _Z7WM_mainP8bContext + 32 17 Blender 0x0000000108350ac0 main + 768 18 dyld 0x00007ff81916e386 start + 1942 BLI_assert failed: source/blender/bmesh/intern/bmesh_log.cc:930, BM_log_original_vert_co(), at 'BLI_ghash_haskey(entry->modified_verts, key)' [1] 62524 abort ./Blender ``` EDIT: Ignore this assert failure - I'm fairly certain that this is an entirely separate issue from the main regression being tracked here now.
Sean Kim commented 2024-02-09 01:52:30 +01:00
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Been trying to bisect this to try and find where the change could be I think I've narrowed it to the range of c9dd5ce4cc1 ~ 2c85561fc31

EDIT: Was mislead by trying to track down the previously mentioned assert failure.

~~Been trying to bisect this to try and find where the change could be I think I've narrowed it to the range of `c9dd5ce4cc1` ~ `2c85561fc31`~~ EDIT: Was mislead by trying to track down the previously mentioned assert failure.
Pratik Borhade commented 2024-02-09 06:45:29 +01:00
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Hi, thanks for the report. Can confirm. Broke between d0359d066db9 - f4e52f447aa0
Intermediate builds are crashing during sculpt so bit hard to bisect.

Hi, thanks for the report. Can confirm. Broke between `d0359d066db9 - f4e52f447aa0` Intermediate builds are crashing during sculpt so bit hard to bisect.
Pratik Borhade commented 2024-02-09 06:52:33 +01:00
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Possibly caused by c78a0f3aa6

Possibly caused by c78a0f3aa6c1159d003f7584108d0e56079e544e
Philipp Oeser commented 2024-02-09 11:11:32 +01:00
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Will check

Will check
Philipp Oeser commented 2024-02-09 11:26:40 +01:00
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c78a0f3aa6 is still fine, will check further

c78a0f3aa6 is still fine, will check further
Philipp Oeser self-assigned this 2024-02-09 12:10:36 +01:00
Philipp Oeser commented 2024-02-09 13:30:12 +01:00
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At least Blob, Crease, Draw are affected.

Caused by bb080140c0

Above commit made the result of SCULPT_pbvh_calc_area_normal and SCULPT_calc_area_normal optional.
Previously, SCULPT_pbvh_calc_area_normal would work on the former r_area_no even if it would eventually return false (this happens e.g. when the first of two methods is used -- see comment below) and not all usages of these functions would actually check "success" (if the formerly returned any_vertex_sampled was true or false). It seems calc_area_normal_and_center_task can return an area normal based on two very different methods, see this comment:

  /* When the mesh is edited we can't rely on original coords
   * (original mesh may not even have verts in brush radius). */

and callers of SCULPT_pbvh_calc_area_normal could then decide to use or not use the returned normal (if it comes from a sampled vertex or the "other" method) and even use some other "third" method then, callers of SCULPT_calc_area_normal didnt care at all and just used the normal no matter which method this was based on.

So we could probably untangle this further by splitting the two "methods" of calc_area_normal_and_center_task out into different functions (making it more clear what actually happens, what is used), for now though, we could also just go back to the way it was before... (since this was definitely not just a cleanup commit...)

@HooglyBoogly : what do you think?

At least Blob, Crease, Draw are affected. Caused by bb080140c0372f1abaf6a379d819e3def457c623 Above commit made the result of `SCULPT_pbvh_calc_area_normal` and `SCULPT_calc_area_normal` optional. Previously, `SCULPT_pbvh_calc_area_normal` would work on the former `r_area_no` even if it would eventually return false (this happens e.g. when the first of two methods is used -- see comment below) and not all usages of these functions would actually check "success" (if the formerly returned `any_vertex_sampled` was true or false). It seems `calc_area_normal_and_center_task` can return an area normal based on two very different methods, see this comment: ``` /* When the mesh is edited we can't rely on original coords * (original mesh may not even have verts in brush radius). */ ``` and callers of `SCULPT_pbvh_calc_area_normal` could then decide to use or not use the returned normal (if it comes from a sampled vertex or the "other" method) and even use some other "third" method then, callers of `SCULPT_calc_area_normal` didnt care at all and just used the normal no matter which method this was based on. So we could probably untangle this further by splitting the two "methods" of `calc_area_normal_and_center_task` out into different functions (making it more clear what actually happens, what is used), for now though, we could also just go back to the way it was before... (since this was definitely not just a cleanup commit...) @HooglyBoogly : what do you think?
Philipp Oeser removed their assignment 2024-02-09 13:30:44 +01:00
Philipp Oeser changed title from Sculpt: Draw brush doesn't work when dyntopo is enabled to Sculpt: Some brushes dont work when dyntopo is enabled 2024-02-09 13:35:32 +01:00
Raul Fernandez Hernandez commented 2024-02-09 13:55:00 +01:00
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I got this stack trace:

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x7ff810b2c7a2 __pthread_kill + 10
1 libsystem_pthread.dylib 0x7ff810b64f30 pthread_kill + 262
2 libsystem_c.dylib 0x7ff810a83ae9 __abort + 145
3 libsystem_c.dylib 0x7ff810a83a58 abort + 141
4 Blender 0x10c6531f9 _BLI_assert_abort + 9 (BLI_assert.c:48)
5 Blender 0x10cb787a3 BM_log_original_vert_co(BMLog*, BMVert*) + 179 (bmesh_log.cc:930)
6 Blender 0x10be808f7 BKE_pbvh_bmesh_node_save_orig(BMesh*, BMLog*, PBVHNode*, bool) + 391 (pbvh_bmesh.cc:2326)
7 Blender 0x10be7fb10 blender::bke::pbvh::bmesh_update_topology(PBVH*, PBVHTopologyUpdateMode, float const*, float const*, float, bool, bool) + 1232 (pbvh_bmesh.cc:2292)
8 Blender 0x10e51407d sculpt_topology_update(Sculpt*, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*) + 941 (sculpt.cc:3229)
9 Blender 0x10e51b3d7 do_tiled(Sculpt*, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*, void ()(Sculpt, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*)) + 647 (sculpt.cc:3856)
10 Blender 0x10e513c21 do_symmetrical_brush_actions(Sculpt*, Object*, void ()(Sculpt, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*), UnifiedPaintSettings*, PaintModeSettings*) + 289 (sculpt.cc:3943)
11 Blender 0x10e511b82 blender::ed::sculpt_paint::sculpt_stroke_update_step(bContext*, wmOperator*, blender::ed::sculpt_paint::PaintStroke*, PointerRNA*) + 546 (sculpt.cc:5527)
12 Blender 0x10e4c33a2 blender::ed::sculpt_paint::paint_brush_stroke_add_step(bContext*, wmOperator*, blender::ed::sculpt_paint::PaintStroke*, float const*, float) + 1186 (paint_stroke.cc:618)
13 Blender 0x10e4c128e blender::ed::sculpt_paint::paint_stroke_modal(bContext*, wmOperator*, wmEvent const*, blender::ed::sculpt_paint::PaintStroke**) + 2478 (paint_stroke.cc:1602)
14 Blender 0x10e5114dd blender::ed::sculpt_paint::sculpt_brush_stroke_modal(bContext*, wmOperator*, wmEvent const*) + 45 (sculpt.cc:5751)
15 Blender 0x10e5113a6 blender::ed::sculpt_paint::sculpt_brush_stroke_invoke(bContext*, wmOperator*, wmEvent const*) + 694 (sculpt.cc:5692)
16 Blender 0x10ca09d0d wm_operator_invoke(bContext*, wmOperatorType*, wmEvent const*, PointerRNA*, ReportList*, bool, bool) + 765 (wm_event_system.cc:1551)
17 Blender 0x10ca12e57 wm_handler_operator_call(bContext*, ListBase*, wmEventHandler*, wmEvent*, PointerRNA*, char const*) + 1719 (wm_event_system.cc:2582)
18 Blender 0x10ca10eeb wm_handlers_do_keymap_with_keymap_handler(bContext*, wmEvent*, ListBase*, wmEventHandler_Keymap*, wmKeyMap*, bool) + 1467 (wm_event_system.cc:2974)
19 Blender 0x10ca10012 wm_handlers_do_intern(bContext*, wmWindow*, wmEvent*, ListBase*) + 706 (wm_event_system.cc:3304)
20 Blender 0x10ca0e980 wm_handlers_do(bContext*, wmEvent*, ListBase*) + 80 (wm_event_system.cc:3444)
21 Blender 0x10ca153be wm_event_do_region_handlers(bContext*, wmEvent*, ARegion*) + 222 (wm_event_system.cc:3870)
22 Blender 0x10ca0fb59 wm_event_do_handlers_area_regions(bContext*, wmEvent*, ScrArea*) + 345 (wm_event_system.cc:3902)
23 Blender 0x10ca0e0b9 wm_event_do_handlers(bContext*) + 3305 (wm_event_system.cc:4126)
24 Blender 0x10c9fb517 WM_main(bContext*) + 39 (wm.cc:613)
25 Blender 0x10b6fea5e main + 1118 (creator.cc:575)
26 dyld 0x7ff8107da386 start + 1942

EDIT: Is the same stack trace as #118014 (comment)

I got this stack trace: > Thread 0 Crashed:: Dispatch queue: com.apple.main-thread > 0 libsystem_kernel.dylib 0x7ff810b2c7a2 __pthread_kill + 10 > 1 libsystem_pthread.dylib 0x7ff810b64f30 pthread_kill + 262 > 2 libsystem_c.dylib 0x7ff810a83ae9 __abort + 145 > 3 libsystem_c.dylib 0x7ff810a83a58 abort + 141 > 4 Blender 0x10c6531f9 _BLI_assert_abort + 9 (BLI_assert.c:48) > 5 Blender 0x10cb787a3 BM_log_original_vert_co(BMLog*, BMVert*) + 179 (bmesh_log.cc:930) > 6 Blender 0x10be808f7 BKE_pbvh_bmesh_node_save_orig(BMesh*, BMLog*, PBVHNode*, bool) + 391 (pbvh_bmesh.cc:2326) > 7 Blender 0x10be7fb10 blender::bke::pbvh::bmesh_update_topology(PBVH*, PBVHTopologyUpdateMode, float const*, float const*, float, bool, bool) + 1232 (pbvh_bmesh.cc:2292) > 8 Blender 0x10e51407d sculpt_topology_update(Sculpt*, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*) + 941 (sculpt.cc:3229) > 9 Blender 0x10e51b3d7 do_tiled(Sculpt*, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*, void (*)(Sculpt*, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*)) + 647 (sculpt.cc:3856) > 10 Blender 0x10e513c21 do_symmetrical_brush_actions(Sculpt*, Object*, void (*)(Sculpt*, Object*, Brush*, UnifiedPaintSettings*, PaintModeSettings*), UnifiedPaintSettings*, PaintModeSettings*) + 289 (sculpt.cc:3943) > 11 Blender 0x10e511b82 blender::ed::sculpt_paint::sculpt_stroke_update_step(bContext*, wmOperator*, blender::ed::sculpt_paint::PaintStroke*, PointerRNA*) + 546 (sculpt.cc:5527) > 12 Blender 0x10e4c33a2 blender::ed::sculpt_paint::paint_brush_stroke_add_step(bContext*, wmOperator*, blender::ed::sculpt_paint::PaintStroke*, float const*, float) + 1186 (paint_stroke.cc:618) > 13 Blender 0x10e4c128e blender::ed::sculpt_paint::paint_stroke_modal(bContext*, wmOperator*, wmEvent const*, blender::ed::sculpt_paint::PaintStroke**) + 2478 (paint_stroke.cc:1602) > 14 Blender 0x10e5114dd blender::ed::sculpt_paint::sculpt_brush_stroke_modal(bContext*, wmOperator*, wmEvent const*) + 45 (sculpt.cc:5751) > 15 Blender 0x10e5113a6 blender::ed::sculpt_paint::sculpt_brush_stroke_invoke(bContext*, wmOperator*, wmEvent const*) + 694 (sculpt.cc:5692) > 16 Blender 0x10ca09d0d wm_operator_invoke(bContext*, wmOperatorType*, wmEvent const*, PointerRNA*, ReportList*, bool, bool) + 765 (wm_event_system.cc:1551) > 17 Blender 0x10ca12e57 wm_handler_operator_call(bContext*, ListBase*, wmEventHandler*, wmEvent*, PointerRNA*, char const*) + 1719 (wm_event_system.cc:2582) > 18 Blender 0x10ca10eeb wm_handlers_do_keymap_with_keymap_handler(bContext*, wmEvent*, ListBase*, wmEventHandler_Keymap*, wmKeyMap*, bool) + 1467 (wm_event_system.cc:2974) > 19 Blender 0x10ca10012 wm_handlers_do_intern(bContext*, wmWindow*, wmEvent*, ListBase*) + 706 (wm_event_system.cc:3304) > 20 Blender 0x10ca0e980 wm_handlers_do(bContext*, wmEvent*, ListBase*) + 80 (wm_event_system.cc:3444) > 21 Blender 0x10ca153be wm_event_do_region_handlers(bContext*, wmEvent*, ARegion*) + 222 (wm_event_system.cc:3870) > 22 Blender 0x10ca0fb59 wm_event_do_handlers_area_regions(bContext*, wmEvent*, ScrArea*) + 345 (wm_event_system.cc:3902) > 23 Blender 0x10ca0e0b9 wm_event_do_handlers(bContext*) + 3305 (wm_event_system.cc:4126) > 24 Blender 0x10c9fb517 WM_main(bContext*) + 39 (wm.cc:613) > 25 Blender 0x10b6fea5e main + 1118 (creator.cc:575) > 26 dyld 0x7ff8107da386 start + 1942 EDIT: Is the same stack trace as https://projects.blender.org/blender/blender/issues/118014#issuecomment-1119490
Hans Goudey added
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Philipp Oeser commented 2024-02-09 18:01:57 +01:00
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I wouldnt be surprised if this fix causes other issues (like I said, not sure if callers of SCULPT_pbvh_calc_area_normal actually relied on the behaviour of the "first method" of calc_area_normal_and_center_task returning false... but I am happily/hopefully proven wrong over time...)

I wouldnt be surprised if this fix causes other issues (like I said, not sure if callers of `SCULPT_pbvh_calc_area_normal` actually relied on the behaviour of the "first method" of `calc_area_normal_and_center_task` returning false... but I am happily/hopefully proven wrong over time...)
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Unbreak Now!
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Needs Info from Developers
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Needs Triage
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Reference: blender/blender#118014
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