Linked duplicated mesh does not update in edit mode after making its data single user #60752

New Issue

Vitaliy · 2019-01-22T16:27:27+01:00

Vitaliy commented

2019-01-22 16:27:27 +01:00

System Information
Operating system: Windows 10
Graphics card: NVidia Titan

Blender Version
Broken: 2.80, 7f40d553f9, blender2.7, 2019-01-22

Short description of error
Mesh only updates by going out of edit mode and entering edit mode again if linked duplicated mesh is made single user.

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

Select start-up cube and linked duplicate it and move it so that they do not overlap.
Hit F3 and search for Make Single User, apply it to selected objects and check Object data.
Select both of the cubes and linked duplicate them and move them so that they do not overlap.
Select the last cube and make him single user too with Object data checked.
Hit Tab to go to the Edit mode and try to select any vertices. Hit Tab again to go out of the Edit mode and then hit Tab again to enter the Edit mode one more time. Now the vertices will be selected.

One workaround is to linked duplicate troubled mesh and delete the copy, after that the last mesh will update as normal.

**System Information** Operating system: Windows 10 Graphics card: NVidia Titan **Blender Version** Broken: 2.80, 7f40d553f903, blender2.7, 2019-01-22 **Short description of error** Mesh only updates by going out of edit mode and entering edit mode again if linked duplicated mesh is made single user. **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible). 1. Select start-up cube and linked duplicate it and move it so that they do not overlap. 2. Hit F3 and search for Make Single User, apply it to selected objects and check Object data. 3. Select both of the cubes and linked duplicate them and move them so that they do not overlap. 4. Select the last cube and make him single user too with Object data checked. 5. Hit Tab to go to the Edit mode and try to select any vertices. Hit Tab again to go out of the Edit mode and then hit Tab again to enter the Edit mode one more time. Now the vertices will be selected. One workaround is to linked duplicate troubled mesh and delete the copy, after that the last mesh will update as normal.

Vitaliy commented

2019-01-22 16:27:27 +01:00

Added subscriber: @Northsteel

Jacques Lucke commented

2019-01-22 17:29:37 +01:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2019-01-22 17:29:37 +01:00

I can reproduce the issue.

Richard Antalik commented

2020-01-23 13:45:11 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-01-23 13:45:11 +01:00

Changed status from 'Confirmed' to: 'Needs User Info'

Richard Antalik commented

2020-01-23 13:45:11 +01:00

I have re-triaged this report and can not reproduce it.
Can you please check if this is still an issue in latest build?
https://builder.blender.org/download/

I have re-triaged this report and can not reproduce it. Can you please check if this is still an issue in latest build? https://builder.blender.org/download/

Vitaliy commented

2020-01-29 03:56:32 +01:00

In #60752#856716, @iss wrote:
I have re-triaged this report and can not reproduce it.
Can you please check if this is still an issue in latest build?
https://builder.blender.org/download/

Now it just crashes. I will try to better explain the steps needed to reproduce the issue.

After you open blender, select default cube hit Alt+D and move it aside (just so we can see it and select it easily).
Now select new (linked duplicated) cube, hit F3, search for Make Single User, hit Enter and choose Selected Objects. In the options of Make Single User command check Object Data.
Now select both cubes and Alt+D them and move them aside.
Now select the last linked duplicated cube and make him Single User as well (with the same setting as previously)
Hit Tab to go to Edit Mode and try to select any vertices. You will notice that vertex selection does not updates.
Hit Tab again to go out of Edit Mode and Blender will crash. (If it will not crash, try hitting Tab multiple times)

Blender build January 29, 01:17:51 - f9e1e088a4 Windows 64 bit

> In #60752#856716, @iss wrote: > I have re-triaged this report and can not reproduce it. > Can you please check if this is still an issue in latest build? > https://builder.blender.org/download/ Now it just crashes. I will try to better explain the steps needed to reproduce the issue. 1. After you open blender, select default cube hit Alt+D and move it aside (just so we can see it and select it easily). 2. Now select new (linked duplicated) cube, hit F3, search for Make Single User, hit Enter and choose Selected Objects. In the options of Make Single User command check Object Data. 3. Now select both cubes and Alt+D them and move them aside. 4. Now select the last linked duplicated cube and make him Single User as well (with the same setting as previously) 5. Hit Tab to go to Edit Mode and try to select any vertices. You will notice that vertex selection does not updates. 6. Hit Tab again to go out of Edit Mode and Blender will crash. (If it will not crash, try hitting Tab multiple times) Blender build January 29, 01:17:51 - f9e1e088a4c7 Windows 64 bit

Richard Antalik commented

2020-01-29 14:34:50 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

Richard Antalik commented

2020-01-29 14:34:51 +01:00

After changing edit mode / object mode about 15 times I got a crash

Backtrace is not always the same, so this will probably be race condition.

Could not read memory of loopstart

>	blender.exe!mesh_calc_ngon_normal(const MPoly * mpoly, const MLoop * loopstart, const MVert * mvert, float * normal) Line 2165	C

 	blender.exe!BKE_mesh_calc_poly_normal(const MPoly * mpoly, const MLoop * loopstart, const MVert * mvarray, float * r_no) Line 2190	C
 	blender.exe!mesh_calc_normals_poly_cb(void * userdata, const int pidx, const TaskParallelTLS * UNUSED_tls) Line 229	C
 	blender.exe!parallel_range_single_thread(TaskParallelRangePool * range_pool) Line 1259	C
 	blender.exe!BLI_task_parallel_range(const int start, const int stop, void * userdata, void(*)(void *, const int, const TaskParallelTLS *) func, TaskParallelSettings * settings) Line 1331	C
 	blender.exe!BKE_mesh_calc_normals_poly(MVert * mverts, float[3] * r_vertnors, int numVerts, const MLoop * mloop, const MPoly * mpolys, int numLoops, int numPolys, float[3] * r_polynors, const bool only_face_normals) Line 340	C
 	blender.exe!mesh_render_data_create(Mesh * me, const bool is_editmode, const float[4] * obmat, const bool do_final, const bool do_uvedit, const eMRIterType iter_type, const eMRDataType data_flag, const DRW_MeshCDMask * UNUSED_cd_used, const ToolSettings * ts) Line 226	C
 	blender.exe!mesh_buffer_cache_create_requested(MeshBatchCache * cache, MeshBufferCache mbc, Mesh * me, const bool is_editmode, const float[4] * obmat, const bool do_final, const bool do_uvedit, const bool use_subsurf_fdots, const DRW_MeshCDMask * cd_layer_used, const ToolSettings * ts, const bool use_hide) Line 4452	C
 	blender.exe!DRW_mesh_batch_cache_create_requested(Object * ob, Mesh * me, const Scene * scene, const bool is_paint_mode, const bool use_hide) Line 1377	C
 	blender.exe!drw_batch_cache_generate_requested(Object * ob) Line 3413	C
 	blender.exe!drw_engines_cache_populate(Object * ob) Line 1157	C
 	blender.exe!DRW_draw_render_loop_ex(Depsgraph * depsgraph, RenderEngineType * engine_type, ARegion * ar, View3D * v3d, GPUViewport * viewport, const bContext * evil_C) Line 1569	C
 	blender.exe!DRW_draw_view(const bContext * C) Line 1486	C
 	blender.exe!view3d_draw_view(const bContext * C, ARegion * ar) Line 1533	C
 	blender.exe!view3d_main_region_draw(const bContext * C, ARegion * ar) Line 1558	C
 	blender.exe!ED_region_do_draw(bContext * C, ARegion * ar) Line 539	C
 	blender.exe!wm_draw_window_offscreen(bContext * C, wmWindow * win, bool stereo) Line 635	C
 	blender.exe!wm_draw_window(bContext * C, wmWindow * win) Line 773	C
 	blender.exe!wm_draw_update(bContext * C) Line 953	C
 	blender.exe!WM_main(bContext * C) Line 425	C
 	blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 520	C

After changing edit mode / object mode about 15 times I got a crash Backtrace is not always the same, so this will probably be race condition. Could not read memory of `loopstart` ``` > blender.exe!mesh_calc_ngon_normal(const MPoly * mpoly, const MLoop * loopstart, const MVert * mvert, float * normal) Line 2165 C blender.exe!BKE_mesh_calc_poly_normal(const MPoly * mpoly, const MLoop * loopstart, const MVert * mvarray, float * r_no) Line 2190 C blender.exe!mesh_calc_normals_poly_cb(void * userdata, const int pidx, const TaskParallelTLS * UNUSED_tls) Line 229 C blender.exe!parallel_range_single_thread(TaskParallelRangePool * range_pool) Line 1259 C blender.exe!BLI_task_parallel_range(const int start, const int stop, void * userdata, void(*)(void *, const int, const TaskParallelTLS *) func, TaskParallelSettings * settings) Line 1331 C blender.exe!BKE_mesh_calc_normals_poly(MVert * mverts, float[3] * r_vertnors, int numVerts, const MLoop * mloop, const MPoly * mpolys, int numLoops, int numPolys, float[3] * r_polynors, const bool only_face_normals) Line 340 C blender.exe!mesh_render_data_create(Mesh * me, const bool is_editmode, const float[4] * obmat, const bool do_final, const bool do_uvedit, const eMRIterType iter_type, const eMRDataType data_flag, const DRW_MeshCDMask * UNUSED_cd_used, const ToolSettings * ts) Line 226 C blender.exe!mesh_buffer_cache_create_requested(MeshBatchCache * cache, MeshBufferCache mbc, Mesh * me, const bool is_editmode, const float[4] * obmat, const bool do_final, const bool do_uvedit, const bool use_subsurf_fdots, const DRW_MeshCDMask * cd_layer_used, const ToolSettings * ts, const bool use_hide) Line 4452 C blender.exe!DRW_mesh_batch_cache_create_requested(Object * ob, Mesh * me, const Scene * scene, const bool is_paint_mode, const bool use_hide) Line 1377 C blender.exe!drw_batch_cache_generate_requested(Object * ob) Line 3413 C blender.exe!drw_engines_cache_populate(Object * ob) Line 1157 C blender.exe!DRW_draw_render_loop_ex(Depsgraph * depsgraph, RenderEngineType * engine_type, ARegion * ar, View3D * v3d, GPUViewport * viewport, const bContext * evil_C) Line 1569 C blender.exe!DRW_draw_view(const bContext * C) Line 1486 C blender.exe!view3d_draw_view(const bContext * C, ARegion * ar) Line 1533 C blender.exe!view3d_main_region_draw(const bContext * C, ARegion * ar) Line 1558 C blender.exe!ED_region_do_draw(bContext * C, ARegion * ar) Line 539 C blender.exe!wm_draw_window_offscreen(bContext * C, wmWindow * win, bool stereo) Line 635 C blender.exe!wm_draw_window(bContext * C, wmWindow * win) Line 773 C blender.exe!wm_draw_update(bContext * C) Line 953 C blender.exe!WM_main(bContext * C) Line 425 C blender.exe!main(int argc, const unsigned char * * UNUSED_argv_c) Line 520 C ```

Vitaliy commented

2020-01-29 18:22:14 +01:00

For me it mostly crashes after just one edit mode/ object mode cycle. Are you sure that you applied Make Single User (Object Data checked) twice? Once for the first, second time for the 4th.
Does vertex selection updates for you after step 5? Can you select and unselect vertices and viewport updates fine?

For me it mostly crashes after just one edit mode/ object mode cycle. Are you sure that you applied Make Single User (Object Data checked) twice? Once for the first, second time for the 4th. Does vertex selection updates for you after step 5? Can you select and unselect vertices and viewport updates fine?

Richard Antalik commented

2020-01-29 19:49:11 +01:00

In #60752#862105, @Northsteel wrote:
For me it mostly crashes after just one edit mode/ object mode cycle.

Done this twice, first time I had to switch more times, second time I think it crashed after 1 or 2 switches

Are you sure that you applied Make Single User (Object Data checked) twice? Once for the first, second time for the 4th.
It stayed selected during second duplication.

Does vertex selection updates for you after step 5?

I couldn't select any vertices.

Can you select and unselect vertices and viewport updates fine?

Haven't tried

> In #60752#862105, @Northsteel wrote: > For me it mostly crashes after just one edit mode/ object mode cycle. Done this twice, first time I had to switch more times, second time I think it crashed after 1 or 2 switches Are you sure that you applied Make Single User (Object Data checked) twice? Once for the first, second time for the 4th. It stayed selected during second duplication. > Does vertex selection updates for you after step 5? I couldn't select any vertices. >Can you select and unselect vertices and viewport updates fine? Haven't tried

Bastien Montagne commented

2020-10-16 10:19:58 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2020-10-16 10:19:58 +02:00

Changed status from 'Confirmed' to: 'Needs User Info'

Bastien Montagne commented

2020-10-16 10:19:58 +02:00

Cannot reproduce any bug, crash or anything here, is this still an issue?

Vitaliy commented

2020-10-17 02:56:28 +02:00

In #60752#1035434, @mont29 wrote:
Cannot reproduce any bug, crash or anything here, is this still an issue?

Can't reproduce this in 2.83.1 and 2.90.1.

> In #60752#1035434, @mont29 wrote: > Cannot reproduce any bug, crash or anything here, is this still an issue? Can't reproduce this in 2.83.1 and 2.90.1.

Bastien Montagne commented

2020-10-19 09:58:58 +02:00

Changed status from 'Needs User Info' to: 'Resolved'

Bastien Montagne closed this issue

2020-10-19 09:58:58 +02:00

Bastien Montagne self-assigned this 2020-10-19 09:58:58 +02:00

Bastien Montagne commented

2020-10-19 09:58:58 +02:00

Thanks, then I think we can consider this as resolved for now.

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Linked duplicated mesh does not update in edit mode after making its data single user #60752