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Parent to triangle changes child location #127803

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opened 2024-09-18 14:55:09 +02:00 by ML · 4 comments
ML commented 2024-09-18 14:55:09 +02:00
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System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 560.94

Blender Version
Broken: version: 4.2.0, branch: blender-v4.2-release, commit date: 2024-07-16 06:20, hash: a51f293548ad
Worked: (newest version of Blender that worked as expected)

Short description of error
The position and rotation of the null parented on any 3vertex object do not correctly calculate the transform matrix.

Exact steps for others to reproduce the error
Create sphere > edit mode > select 3 vertices > shift+s > cursor to selected > add null > select first null then object > ctrl+p > vertex (triangle)

  • in blender LTS 3.6 the null stays and move by the triangle of the sphere (correct)
  • in 4.2 the null goes away from triangle and object
**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3080/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 560.94 **Blender Version** Broken: version: 4.2.0, branch: blender-v4.2-release, commit date: 2024-07-16 06:20, hash: `a51f293548ad` Worked: (newest version of Blender that worked as expected) **Short description of error** The position and rotation of the null parented on any 3vertex object do not correctly calculate the transform matrix. **Exact steps for others to reproduce the error** Create sphere > edit mode > select 3 vertices > shift+s > cursor to selected > add null > select first null then object > ctrl+p > vertex (triangle) - in blender LTS 3.6 the null stays and move by the triangle of the sphere (correct) - in 4.2 the null goes away from triangle and object
ML added the
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 labels 2024-09-18 14:55:10 +02:00
Pratik Borhade commented 2024-09-19 07:03:19 +02:00
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Hi, thanks for the report. Can confirm in 4.2.2. However, this appears to be fixed already in 4.3, I will check.

Hi, thanks for the report. Can confirm in 4.2.2. However, this appears to be fixed already in 4.3, I will check.
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Pratik Borhade added this to the 4.2 LTS milestone 2024-09-19 07:04:10 +02:00
Pratik Borhade commented 2024-09-19 07:08:35 +02:00
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In main/4.3, 29edcef5c9 resolved the issue.
@JacquesLucke hi, can we backport your fix to 4.2?

In main/4.3, 29edcef5c9af1a6c9d64948cfd30b7feb6f6a8e1 resolved the issue. @JacquesLucke hi, can we backport your fix to 4.2?
Pratik Borhade changed title from 3 vertex parent issue to Parent to triangle changes child location 2024-09-19 07:10:55 +02:00
Jacques Lucke commented 2024-09-19 14:40:49 +02:00
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Yes, the same fix should work in 4.2 I think.

Yes, the same fix should work in 4.2 I think.
Pratik Borhade commented 2024-09-21 05:25:15 +02:00
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Thanks, added to backporting list.
Closing the report.

Thanks, added to backporting list. Closing the report.
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Reference: blender/blender#127803
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