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Text Extrude with Negative Bevel Shading Issues
Confirmed, NormalPublic


System Information
Operating system: Linux-5.0.0-38-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: Mesa DRI Intel(R) UHD Graphics 620 (Kabylake GT2) Intel Open Source Technology Center 4.5 (Core Profile) Mesa 19.2.0-devel (git-2631fd3 2019-07-24 cosmic-oibaf-ppa)

Blender Version
Broken: version: 2.83 (sub 7), branch: master, commit date: 2020-03-09 hash: rB503d5c0c652dbce9dad428ab4b19e021c0ca8a39
Worked: version: 2.82

Short description of error
When using an extruded text object with a negative bevel the shading is off.

Exact steps for others to reproduce the error

  • Open the attached file in Blender 2.82 and 2.83 and see the differences. I expect that half of the extrude Half of the extrude uses wrong data?
  • By changing the bevel depth to positive the shading is correct.

From default blender

  • Create a text
  • set the extrude to a positive number (0.1)
  • set the bevel depth to a negative number (-0.01)

My first impression is that the negative depth was not tested as it has a soft limit in the UI. But it was supported.

Event Timeline

Evan Wilson (EAW) changed the task status from Needs Triage to Confirmed.Mon, Mar 9, 10:39 PM
Evan Wilson (EAW) added a project: Modeling.

I can confirm.


2.82 release