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Maniphest T78607

Model rotates with view when parented to camera
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Description

System Information
Operating system: Windows 7 64bit
Graphics card: Nvidia 660 GTX

Blender Version
Broken: Version 2.83.1 , also version 2.80
Worked: N/A; file created with version 2.80

Short description of error
Model rotates with view when parented to camera.

Link to video of the issue: https://www.dropbox.com/s/8glp3d9mkh5maks/error%20%2801%29.mp4?dl=1
*Alternative link to Blend File: https://www.dropbox.com/s/jk6v0a5ir7wzfy3/HOUSE3_BUGGED.blend?dl=1

Exact steps for others to reproduce the error

  1. Open General template
  2. Make cube parent of camera
  3. In viewport side panel enable Lock Camera to View
  4. Toggle camera view 0
  5. Pan, rotate or zoom view

Cube will move along with camera

Example:

HOUSE3_BUGGED.blend3 MBDownload

Related Objects

Event Timeline

Isaac (Gizmojunk) created this task.Jul 4 2020, 5:39 PM
Richard Antalik (ISS) renamed this task from Unselected model rotates with view. to Model rotates with view when parented to camera.Jul 8 2020, 3:37 AM
Richard Antalik (ISS) changed the task status from Needs Triage to Confirmed.
Richard Antalik (ISS) updated the task description. (Show Details)
Richard Antalik (ISS) added a project: User Interface.
Isaac (Gizmojunk) added a comment.EditedJul 13 2020, 7:50 PM

I should point out that parenting the the object to the camera is not something that I knowingly did; not at all something that I wanted—it ruined my editing session.
If it happened, it happened because of some other strangeness. Possibly to do with 'lock camera to view' and 'fly/walk', because that's what I was doing; positioning the camera when suddenly a section of the house began to move with the view.

(Blender user since version 2.42)

Hans Goudey (HooglyBoogly) closed this task as Archived.Sep 8 2020, 11:18 PM
Hans Goudey (HooglyBoogly) claimed this task.
Hans Goudey (HooglyBoogly) added a subscriber: Hans Goudey (HooglyBoogly).

Thanks for the report. but this is not a bug. When lock to view is on, the camera's transform is updated to match the view's, that's what the setting does. So it's expected that the transform of the camera's child objects would change too.

Isaac (Gizmojunk) added a comment.EditedSep 10 2020, 12:13 AM

I can understand that, but I did not set any objects as a child of the camera—if this happened, then that's the bug.

*Note that I did not set the current title for this report; it was changed by user Richard Antalik.

At the time, I suspected a problem with Lock View To Camera, because that's what I selected, and suddenly part of the house model began moving with the camera rotation.

Hans Goudey (HooglyBoogly) reopened this task as Confirmed.Sep 10 2020, 3:10 PM
Hans Goudey (HooglyBoogly) changed the subtype of this task from "Report" to "Bug".

Oh, I'm sorry, I tried the reverse-- made the camera the cube's parent.

I do think the title makes more sense, it doesn't really have anything to do with whether the object is selected or not.

But I think this is indeed a bug. Sorry for misunderstanding your report.

Hans Goudey (HooglyBoogly) moved this task from Backlog to Bugs on the User Interface board.Oct 16 2020, 4:58 PM
Hans Goudey (HooglyBoogly) mentioned this in D9239: Move "Camera Parent Lock" from preferences to 3D view.Oct 16 2020, 7:42 PM
Hans Goudey (HooglyBoogly) closed this task as Archived.Oct 16 2020, 9:14 PM
Hans Goudey (HooglyBoogly) changed the subtype of this task from "Bug" to "Report".

Okay, there's actually a preference for this behavior in the "Navigation" tab in preferences. This is pretty confusing though, and the 14th bug report we've received about this. So I made a patch that would hopefully make this clearer: D9239