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Extrude missing underside face
Closed, InvalidPublic

Description

System Information
Operating system: Debian stretch / Mac OS Mojave
Graphics card: Nvidia GTX1070 and whatever they throw in a 2015 Macbook pro

Blender Version
Blender 2.8 40a8c4908818 (Debian) 12da679fa094 (Mac OS)

Short description of error
Extrude on a plane which has it's face inset, bottom face is missing

Exact steps for others to reproduce the error

  1. Create a plane.
  2. Select face and inset a few mm
  3. Extrude any face
  4. Look at underside, face is missing. (didn't seem to occur in previous build).

Details

Type
Bug

Event Timeline

on latest master, looks like this:

which is consistent with previous versions - like 2.79b, from over a year ago (earliest blender version I have knocking about):

(only real visible difference is that backfaces are not very strongly differentiated in 2.8)

So unless I've missed something very silly, there's no bug here.

Paul Johnson (english_fool) claimed this task.

Ah, I tried again and managed to get the same behavior in 2.79b, If the inset wraps around a bottom face is present, this confused me.

Cheers.