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Subdividing a Plane (to 32.768 tris) error
Closed, DuplicatePublicBUG

Description

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: Quadro K2100M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 389.08

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-15 09:04, hash: rB60fee7832342
Worked: version: 2.90.0, branch: master, commit date: 2020-08-31 11:26, hash: rB0330d1af29c0
Caused by rB4ea93029c65f: GPUIndexBuf: GL backend Isolation

Short description of error
Subdividing a plane 7 times makes vertices/edges/faces disapear. Another subdivison makes them visible again.

Exact steps for others to reproduce the error

  1. Delete the default Cube;
  2. Add a Plane;
  3. Go to Edit Mode;
  4. Press 'W', choose Subdivide (with default values);
  5. Press 'Shift+R' 6 times - after seventh subdivision error appears;

Event Timeline

Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Wed, Sep 16, 12:08 PM
Philipp Oeser (lichtwerk) changed the subtype of this task from "Report" to "Bug".

Can confirm. This is a good one :)
Might have to do with the fact that resulting mesh has exactly 32.768 tris, will check on this.

Philipp Oeser (lichtwerk) renamed this task from Subdividing a Plane error to Subdividing a Plane (to 32.768 tris) error.Wed, Sep 16, 1:15 PM
Philipp Oeser (lichtwerk) updated the task description. (Show Details)

That fix is actually the fix for this report as well.
(For some reason, I was on a different - not 'up-to-date' - version)

Sorry for the noise!