Regression? new tessellation algorithm produces artefacts with flat, flipped-faces mesh. #38976
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Reference: blender/blender#38976
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System Information
Debian AMD64, 8 GB RAM, Radeon HD
Blender Version
Broken: current master, first noticed in december!!
Worked: 2.69
Short description of error
Using an armature with "preserve volume" on a mesh with vertex weights produces a different (jaggy) result than in 2.69.
Exact steps for others to reproduce the error
I attached a .blend file.
Compare frame 176 in 2.69 with current git master.
Also press Alt+A to play the animation and you should notice a somehow jaggy animation in current git version.
Thank You!
Robert
Changed status to: 'Open'
Added subscriber: @robertm
Added subscriber: @mont29
"Issue" is caused by
5da703e915, which introduced a new tessellation algorithm. Assigning to Campbell to get its advice on this.However, please note that that kind of mesh (flat one with flipped faces) is not a "good practice", it’s prone to issues…
Regression: Vertex weights + Preserve Volume Armatureto Regression? new tessellation algorithm produces artefacts with flat, flipped-faces mesh.Changed status from 'Open' to: 'Resolved'
self-intersecting faces are simply not supported - if you do this you could get problems with the old tessellate too though its did handle these better in some cases.
Nevertheless this isn't a bug. closing.
Changed status from 'Resolved' to: 'Archived'