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Cloth brush performance regression in 2.91.0
Closed, ResolvedPublic

Description

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30

Blender Version
Broken version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: rB0f45cab862b8
Worked: 2.90.1

Short description of error
The performance of the cloth brush seems to have regressed from 2.90.1 to 2.91.0.

Exact steps for others to reproduce the error

  • Subdivide the default cube to 1.5mil vertices (likely dependent on your systems capabilities) and apply.
  • Go to sculpt mode and select the cloth brush.
  • Draw a stroke and compare performance.

See the linked screen capture below, left is 2.90.1 right is 2.91.0.
https://cdn.discordapp.com/attachments/300197734374309891/782706927884959784/Blender_FactorySettings_ClothBrush.gif