quitting while using dynotopo (dynamic topography) if you press ESC #46456
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Reference: blender/blender#46456
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System Information
CPU: Intel XEON E5 2683 V3 (ES)
RAM: 65536 MB (ECC)
GFX: 2x PALIT nVidia Geforce GTX 780, 3072MB
OS: Windows 10 PRO
Drivers: nVidia Driver 355.82
Blender Version
Broken: vers: 2.75 a date: 205-07-07_14:56 hash:
c27589e
Error description
Quitting while using dynotopo (dynamic topography) if you press ESC
This happens every time. Also with a new and clear file and using the standard cube.
I've tried different brushes with and without dynotopo, only with dynotopo enabled that happen.
Exact steps for others to reproduce the error
Entering Sculpt mode
activate dynotopo
press with right mouse botton on the mash and drag
Press ESC while dragging
Blender quit. without any promt.
Changed status to: 'Open'
Added subscriber: @growl88
#47225 was marked as duplicate of this issue
Added subscriber: @Samir-Osman
I can confirm that blender seg. faults with a core dump
when following the steps to reproduce the crash.
Fedora 22
Blender 2.76
Build hash
48f7dd6
Added subscriber: @ideasman42
Confirmed, note that this crash applies all revisions, back to 2.71 (didn't test any older).
Added subscriber: @Psy-Fi
Cause is that dyntopo is not made to handle coordinate restoration dynamically this way. The reason is that the paint_mesh_restore_co function iterates through all unique vertices in nodes and for dyntopo, those can be new vertices, added during the stroke, which do not have any original data associated.
You can notice that in all modes that would do a coordinate restore (grabbing, anchored, drag dot brushes) we explicitly disable dynamic topolody addition.
Added subscriber: @Blendify
Added subscribers: @mont29, @d4ndruff, @RyanSweeney
This issue was referenced by
c292b4ebb9
Changed status from 'Open' to: 'Resolved'