Specific scene multiple case crashes, but mostly on render #50851
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Reference: blender/blender#50851
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System Information
Win7 x64 8GB , Radeon R9 270 , PhenomII 1090T x6
Blender Version
Broken: 2.78 e8299c8(Steam) - 6b9d73e(official buildbot),
Worked: -
Short description of error
Attached scene crash blender randomly on most any action - sometime on objects movement, changing viewport mode, save/reloading, and rendering
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
Stable repeatable:
I.
Unknown repeatability:
II.
2) press alt+z to change viewport mode
III.
2) resave scene with another name
3) ? close blender
4) try open blender and saved scene
Changed status to: 'Open'
Added subscriber: @V-11
Added subscribers: @PatriceBertrand, @mano-wii, @mont29, @Sergey
Can confirm the issue. It seems to be caused by array modifier delivering broken topology. This screws up boolean modifier here and could potentially break other areas of blender. So this is first thing to be fixed before we can check if there are more issues here.
I've simplified the case to a single object: wall_12_fin2_packed_simple.blend You can apply modifier and run mesh validation and you'll see lots of unused loops.
@mano-wii, @mont29 or maybe @PatriceBertrand can help having a look here? :)
Quick fix: use a correct merge distance, compatible with your mesh level of details! Here
0.01
is way to high and eats several initial loops of next copy,0.001
seems to work properly.Will check why merge generates invalid geometry, though…
This issue was referenced by
4d58080e23
Changed status from 'Open' to: 'Resolved'