Transforms don't show Parent Inverse information #116689

New Issue

Viktors · 2024-01-01T13:50:45+01:00

Viktors commented

2024-01-01 13:50:45 +01:00

System Information
Operating system: windows 10

Blender Version
Broken: 4.0.2
Worked: never

Short description of error
Blender shows global transform at the time of parenting, not actual transform, which makes the whole transform tab obsolete the moment you have nested objects.
Picture shows 3 cubes 1x1x1 meters, all 3 according to transform tab are located and rotated at 0 0 0, yet only the one with no parent is at that location and rotation, the other 2 share identical transform coordinates yet aren't even close to global nor local 0 0 0.

Exact steps for others to reproduce the error

Make cube.
Duplicate cube,
move/rotate it.
Move/rotate original cube.
Parent second cube to first cube.

Cube.003 is located at 0 0 0, rotated 0 0 0.
Cube.001 is located at 0 0 0, rotated 0 0 0, is parent of Cube.003
Cube.002 is located at 0 0 0, rotated 0 0 0, is parent of Cube.003

How can we find the global location of Cube.001?
Here is the information available?

Displayed_Transform_Values_Bug.blend

**System Information** Operating system: windows 10 **Blender Version** Broken: 4.0.2 Worked: never **Short description of error** Blender shows global transform at the time of parenting, not actual transform, which makes the whole transform tab obsolete the moment you have nested objects. Picture shows 3 cubes 1x1x1 meters, all 3 according to transform tab are located and rotated at 0 0 0, yet only the one with no parent is at that location and rotation, the other 2 share identical transform coordinates yet aren't even close to global nor local 0 0 0. ![image_2024-01-01_143340797.png](attachments/e2055a36-bb4e-41ad-9919-d8c437c9caff) <video src="/attachments/3775ace8-4e19-41b8-bc68-aa2e26f204fe" controls></video> **Exact steps for others to reproduce the error** - Make cube. - Duplicate cube, - move/rotate it. - Move/rotate original cube. - Parent second cube to first cube. Cube.003 is located at 0 0 0, rotated 0 0 0. Cube.001 is located at 0 0 0, rotated 0 0 0, is parent of Cube.003 Cube.002 is located at 0 0 0, rotated 0 0 0, is parent of Cube.003 How can we find the global location of Cube.001? Here is the information available? [Displayed_Transform_Values_Bug.blend](attachments/b96ffcd4-55f3-43b2-9077-5bbb6a1ba9ac)

image_2024-01-01_143340797.png

248 KiB

Blender issue #69.mov

26 MiB

Viktors added the

labels 2024-01-01 13:50:46 +01:00

Germano Cavalcante commented

2024-01-01 14:17:52 +01:00

This is the same issue reported for example in #55103. And it is not considered a bug.
This is caused by the Parent Inverse, which you can Clear by using the operator.

There is some explanation to it in the manual .
Please also refer there to set parenting up without Parent Inverse (or how to clear it later)
This document also explains it nicely, and there is probably more information on the internet.

Se also:
#108513: Apply Parent inverse dose not take scale in to account

Not a bug AFAICS, so closing.

Feel free to comment if there is misunderstanding.

This is the same issue reported for example in #55103. And it is not considered a bug. This is caused by the `Parent Inverse`, which you can Clear by using the operator. > There is some explanation to it in [the manual ](https://docs.blender.org/manual/en/dev/editors/3dview/object/properties/relations/parents.html). Please also refer there to set parenting up **without** `Parent Inverse` (or how to clear it later) [This document ](https://wiki.blender.org/index.php/User:Pepribal/Ref/Appendices/ParentInverse) also explains it nicely, and there is probably more information on the internet. Se also: #108513: Apply Parent inverse dose not take scale in to account Not a bug AFAICS, so closing. Feel free to comment if there is misunderstanding.

Germano Cavalcante closed this issue

2024-01-01 14:17:55 +01:00

Blender Bot added

and removed

labels 2024-01-01 14:17:56 +01:00

Viktors commented

2024-01-01 16:00:41 +01:00

That tells me clearly you did not read what i said nor watch the 1 minute video i submitted, otherwise you wouldve noticed that the objects arent scaled.
And why im seeing a gray font on a gray background here? Looks like i submitted empty comment unless selected.

[That tells me clearly you did not read what i said nor watch the 1 minute video i submitted, otherwise you wouldve noticed that the objects arent scaled. And why im seeing a gray font on a gray background here? Looks like i submitted empty comment unless selected.](url)

Viktors reopened this issue

2024-01-01 16:00:43 +01:00

Blender Bot added

and removed

labels 2024-01-01 16:00:45 +01:00

Germano Cavalcante commented

2024-01-01 17:15:30 +01:00

I apologize for the confusion caused. It seems the links to the documentation are outdated.
To better understand this behavior, you can refer to the updated documentation on Parent Inverse:

That tells me clearly you did not read what i said nor watch the 1 minute video i submitted, otherwise you wouldve noticed that the objects arent scaled.

I saw and I noticed, but a matrix involves not only scale, it also involves rotation and position. And the first issue pointed mentions exactly this (#55103).

This isn't a bug, it's by design, but since it causes so much confusion, perhaps it could be promoted to a Known Issue and a redesign discussed.

I apologize for the confusion caused. It seems the links to the documentation are outdated. To better understand this behavior, you can refer to the updated documentation on `Parent Inverse`: - [Parent Inverse](https://docs.blender.org/manual/en/dev/scene_layout/object/editing/parent.html#parent-inverse) - [Applying Parent Inverse](https://docs.blender.org/manual/en/dev/scene_layout/object/editing/apply.html#parent-inverse) > That tells me clearly you did not read what i said nor watch the 1 minute video i submitted, otherwise you wouldve noticed that the objects arent scaled. I saw and I noticed, but a matrix involves not only scale, it also involves rotation and position. And the first issue pointed mentions exactly this (#55103). This isn't a bug, it's by design, but since it causes so much confusion, perhaps it could be promoted to a Known Issue and a redesign discussed.

Germano Cavalcante added

Module

Modeling

Status

Needs Info from Developers

and removed

Status

Needs Triage

labels 2024-01-01 17:15:46 +01:00

Germano Cavalcante changed title from ~~Transforms dont show transform.~~ to Transforms don't show Parent Inverse information

2024-02-16 19:35:42 +01:00

Germano Cavalcante referenced this issue