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Maniphest T58261

Bug: Blender 2.80 Beta, X and Z-Axes of objects moves in a Front Orthographic rotation.
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Description

System Information
Operating system: Windows 10 Home, 64bit
Graphics card: ASUS GTX660-DC2O-2GD5 G-SYNC Support GeForce GTX 660 2GB 192-Bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card
(I have 2 of these cards in SLI setup)

Blender Version
Broken: Version 2.80 Beta, Date: 2018-11-29 15:57, Hash: 26d5a3625ed, Branch: blender2.8

Short description of error
Rotating objects in "Front Orthographic" (Y-Axis) somehow causes X and Z-Axes to move slightly based on the cursor movement for rotation.
Expected behavior: The X and Z-Axes should always be "0"(zero).

Exact steps for others to reproduce the error
Press Num5 > Press Num1. (Enter Front Orthographic view)
Press N. (Show Properties Region)
Select an Object and Press R. (Move the rotation cursor around and note the X and Z-Axes on the Rotation section under Transform in the Properties Region)
(For me, X and Z-Axes actually move slightly based on my cursor movement. The expected behavior for these axes should be constant 0.

Related Objects

Event Timeline

James Nopmark (Sayoo) created this task.Nov 30 2018, 3:32 AM
Christopher_Anderssarian edited projects, added BF Blender: 2.8; removed BF Blender.Nov 30 2018, 10:32 AM
Philipp Oeser (lichtwerk) added a project: BF Blender.Nov 30 2018, 11:43 AM
Philipp Oeser (lichtwerk) added subscribers: Brecht Van Lommel (brecht), Philipp Oeser (lichtwerk).

I believe these are floating point imprecissions when dealing with rotations based on the view (as opposed to really constraining the rotation by R Y)
(this is also the case in 2.79 btw)

@Brecht Van Lommel (brecht): I assume this could be closed as "not-a-bug" (unless you think it is worth the effort of finding an exact axis from the view and do a real transform constraint in this case?)

Bastien Montagne (mont29) changed the task status from Unknown Status to Archived.Nov 30 2018, 12:05 PM
Bastien Montagne (mont29) claimed this task.
Bastien Montagne (mont29) added a subscriber: Bastien Montagne (mont29).

indeed no bug here, that’s good old rotation issues/imprecisions (and maybe some gimbal lock thingy as well…).