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Maniphest T77189

Join Malfunction
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Description

System Information
My Powerspec PC INFO
Device Speifications
Device Name: CurtisAMay-PC
Processor: Intel(R) Core(TM) i3-4340 CPU @ 3.60GHz 3.60GHz
Graphics: Intel(R) HD Graphics 4600
Installed RAM: 16.00 GB (15.83 GB usable)
Device ID: F7193C75-337F-44BE-A446-4A125F371E44
Product ID: 00330 80000 00000 AA039
System Type: 64-bit operating system - x64 based processor
Pen & Touch: No pen and touch is available for this display

Windows Specifications
Edition: Windows 10 Pro
Version: 1909
Installed On: 2/22/2020
OS Build: 18363.778

Support
Manufacturer: Micro Electronics Inc.
Phone: (614) 850-3670
Website: https://www.microcenter.com

Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: rB375c7dc4caf4
Worked: (optional)

Short description of error
when I try to join mirror images one gets larger and distorted.

Exact steps for others to reproduce the error
in edit mode I deleted half of the head, in the object mode I duplicated the half head and mirrored it on Y axis, I placed the two halves together and tried to join the two halves together. the result was the original half grew bigger and distorted.

system-info.txt15 KBDownload

Event Timeline

Curtis May (akcamay) created this task.May 30 2020, 5:19 AM
Alaska (Alaska) changed the task status from Needs Triage to Needs Information from User.May 30 2020, 5:21 AM
Alaska (Alaska) added a subscriber: Alaska (Alaska).

Are you able to provide the .blend file for us to investigate?

Curtis May (akcamay) added a comment.May 30 2020, 5:26 AM

IMM3.blend1 MBDownload
yes, here it is Imm3.blend

Alaska (Alaska) added a comment.May 30 2020, 5:27 AM

Actually, looking at the image, it seems the issue is most likely caused by the solidify modifier. If I was to take a guess, the normal of one side of the head are backwards. In edit mode, select the part of the head that grows when you join the two and press Alt+N then select Flip. Hope this helps.

Alaska (Alaska) closed this task as Archived.EditedMay 30 2020, 5:33 AM
Alaska (Alaska) claimed this task.

Yeah, looking at the file the issue is your normals.

This is not a bug with Blender. I will close this report.

The exact steps for fixing this are as follows:

  1. Select the right side of the face.
  2. Press Ctrl+A and select Scale.
  3. Enter edit mode on the right side of the face.
  4. Press A.
  5. Press Alt+N and select Flip.
  6. Go back to object mode and select the left side of the face.
  7. Press Ctrl+A and select Scale.
  8. Select the left side of the face then the right side of the face.
  9. Join the two with Ctrl+J.
  10. Play around with the settings in the solidify modifier until you get what you like.