"Rotate" disrespects rotation-direction and path #48998

New Issue

martin me · 2016-08-01T21:41:57+02:00

martin me commented

2016-08-01 21:41:57 +02:00

System Information
Win7 64bit
GTX 960

Blender Version
Broken: Blender 2.77.1
Worked: (optional)

Short description of error
I tried to create a sort of spiral by rotating an subdivided edge with "Proportional Editing" on. ( I got a blend file prepared and attached)
Rotating by hand/mouse works fine, but when I tried to type in the rotation angle per keyboard, e.g. 360° or 180°, it doesn't work so well.
Looks like the Rotation always tries to take the shortest way to it's end position. For 360° it seemingly doesn't move at all.
If I type in the rotation angle afterwards, in the tool options, in the lower left, it works fine again.
Only the keyboard input for the rotation angle seems to be buggy, somehow.

A similar problem exists when I try to rotate an object for animation, for example.
Then it's also not so easy to get it rotating in the right direction and for the wanted amount of degrees, sometimes, and the object also has the tendency to rotate the shortest way to it's "final location". But since here the path and direction of movement is what matters, this behaviour of shortening the path is somehow inadequate, I would say. To me, this seems to depend on the same rotatation-tool-weekness as the problem mentioned above.
RotatationBug.blend

**System Information** Win7 64bit GTX 960 **Blender Version** Broken: Blender 2.77.1 Worked: (optional) **Short description of error** I tried to create a sort of spiral by rotating an subdivided edge with "Proportional Editing" on. ( I got a blend file prepared and attached) Rotating by hand/mouse works fine, but when I tried to type in the rotation angle per keyboard, e.g. 360° or 180°, it doesn't work so well. Looks like the Rotation always tries to take the shortest way to it's end position. For 360° it seemingly doesn't move at all. If I type in the rotation angle afterwards, in the tool options, in the lower left, it works fine again. Only the keyboard input for the rotation angle seems to be buggy, somehow. A similar problem exists when I try to rotate an object for animation, for example. Then it's also not so easy to get it rotating in the right direction and for the wanted amount of degrees, sometimes, and the object also has the tendency to rotate the shortest way to it's "final location". But since here the path and direction of movement is what matters, this behaviour of shortening the path is somehow inadequate, I would say. To me, this seems to depend on the same rotatation-tool-weekness as the problem mentioned above. [RotatationBug.blend](https://archive.blender.org/developer/F331060/RotatationBug.blend)

martin me commented

2016-08-01 21:41:57 +02:00

Changed status to: 'Open'

martin me commented

2016-08-01 21:41:57 +02:00

Added subscriber: @martinme

Sergey Sharybin commented

2016-08-02 09:54:22 +02:00

Added subscribers: @mont29, @Sergey

Sergey Sharybin commented

2016-08-02 09:54:22 +02:00

@mont29, any idea why header input will behave differently from toolshelf properties settings?

Bastien Montagne commented

2016-08-02 10:28:32 +02:00

Wellll… Rotation header input is clamped in (-180, 180) range on purpose it seems - cannot figure out why though… Seems to come from the Dark Ages (a.k.a. 2.4x area, see initial 2.5 commit).

Fixing this is as trivial as removing the clamping line, we can try that and see whether it breaks something else - unless someone remembers why it was added. ;)

Wellll… Rotation header input is clamped in (-180, 180) range on purpose it seems - cannot figure out why though… Seems to come from the Dark Ages (a.k.a. 2.4x area, see [initial 2.5 commit](https://developer.blender.org/diffusion/B/browse/master/source/blender/editors/transform/transform.c;b6b61681efd322bd800bcaba55099cdf147547b2$2728)). Fixing this is as trivial as removing the clamping line, we can try that and see whether it breaks something else - unless someone remembers why it was added. ;)

blender-admin commented

2016-08-02 12:41:43 +02:00

This issue was referenced by fb94f4b884

This issue was referenced by fb94f4b884245dc4fa2961d775f7b1e5c8d16d22

Bastien Montagne commented

2016-08-02 12:44:30 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2016-08-02 12:44:30 +02:00

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"Rotate" disrespects rotation-direction and path #48998