Apply Rotation & Scale command works incorrectly on Empties (2.78a windows) #50178

New Issue

Anthony Rosbottom · 2016-12-04T02:48:00+01:00

Anthony Rosbottom commented

2016-12-04 02:48:00 +01:00

When an empty is created and then scaled and rotated, going to the 'Apply' menu and selecting 'Rotation & Scale' incorrectly resets the rotation and scale values of the empty so that it jumps back to the rotation and scale it was when created.

The Apply > Scale function WILL correctly apply the scale to an empty.

The Apply > Rotation function will incorrectly reset the rotation.

The apply functions work fine on mesh objects and I would expect them to behave the same way when applied to Empties.

bug found in 2.78a windows

When an empty is created and then scaled and rotated, going to the 'Apply' menu and selecting 'Rotation & Scale' incorrectly resets the rotation and scale values of the empty so that it jumps back to the rotation and scale it was when created. The Apply > Scale function WILL correctly apply the scale to an empty. The Apply > Rotation function will incorrectly reset the rotation. The apply functions work fine on mesh objects and I would expect them to behave the same way when applied to Empties. bug found in 2.78a windows

Anthony Rosbottom commented

2016-12-04 02:48:00 +01:00

Changed status to: 'Open'

Anthony Rosbottom commented

2016-12-04 02:48:00 +01:00

Added subscriber: @AnthonyRosbottom

ronan ducluzeau commented

2016-12-07 17:52:17 +01:00

Added subscriber: @zeauro

ronan ducluzeau commented

2016-12-07 17:52:17 +01:00

Empties are a reference. They are not a wiremesh.

They have same behaviour than Object Display Extras.
https://www.blender.org/manual/editors/3dview/object/properties/display.html

In Object Tab, you can enable Axis or Bounds options for default Cube.
Switch viewport to wireframe.

If you scale/rotate the cube and then apply Rotation/Scale; you will see that Cube axis have same behaviour.

It is normal behaviour to have no rotation on axis when rotation is equal to zero.
Rotation is applied to Mesh data but an empty have no mesh data.

Empties have a Size parameter. When Scale is applied, this parameter is changed.

A solution could be to move display bounds type from Object Tab to Object Data Type but it is a UI Design change.
Current behaviour is not a bug. It was the same in previous Blender releases.

A workaround is to use a mesh with a Maximum Draw Type set to Wire and to disable renderability of this mesh.

Empties are a reference. They are not a wiremesh. They have same behaviour than Object Display Extras. https://www.blender.org/manual/editors/3dview/object/properties/display.html In Object Tab, you can enable Axis or Bounds options for default Cube. Switch viewport to wireframe. If you scale/rotate the cube and then apply Rotation/Scale; you will see that Cube axis have same behaviour. It is normal behaviour to have no rotation on axis when rotation is equal to zero. Rotation is applied to Mesh data but an empty have no mesh data. Empties have a Size parameter. When Scale is applied, this parameter is changed. A solution could be to move display bounds type from Object Tab to Object Data Type but it is a UI Design change. Current behaviour is not a bug. It was the same in previous Blender releases. A workaround is to use a mesh with a Maximum Draw Type set to Wire and to disable renderability of this mesh.

Anthony Rosbottom commented

2016-12-07 19:19:25 +01:00

I was/am trying to use the empties as rigging helpers.
In other software I've used (maya, lightwave etc.) changing and applying the rotation and scale of empties (known as locators & nulls respectively) is possible.

Was trying to use the 'circle' empty as a base 'plate' for my character but the circle will not stay rotated 90 degrees so it's sitting flat on the ground plane. I don't want to rotate it 90 degrees and then animate on top of that so that all the child rotations are offset by 90 degrees.

I will use your wireframe mesh work around with custom objects. as suggested. Thanks for looking into this.

I was/am trying to use the empties as rigging helpers. In other software I've used (maya, lightwave etc.) changing and applying the rotation and scale of empties (known as locators & nulls respectively) is possible. Was trying to use the 'circle' empty as a base 'plate' for my character but the circle will not stay rotated 90 degrees so it's sitting flat on the ground plane. I don't want to rotate it 90 degrees and then animate on top of that so that all the child rotations are offset by 90 degrees. I will use your wireframe mesh work around with custom objects. as suggested. Thanks for looking into this.

ronan ducluzeau commented

2016-12-07 21:17:55 +01:00

In Blender, it is more efficient to use bones as rigging helpers.

In any situation where a null or locator would be necessary, you can use a bone instead of an empty.
You can give custom shapes to bones.

https://www.blender.org/manual/rigging/armatures/bones/properties/display.html#shaped-bones

In Blender, it is more efficient to use bones as rigging helpers. In any situation where a null or locator would be necessary, you can use a bone instead of an empty. You can give custom shapes to bones. https://www.blender.org/manual/rigging/armatures/bones/properties/display.html#shaped-bones

Bastien Montagne commented

2016-12-09 10:13:57 +01:00

Added subscriber: @mont29

Bastien Montagne commented

2016-12-09 10:13:57 +01:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2016-12-09 10:13:57 +01:00

Bastien Montagne self-assigned this 2016-12-09 10:13:57 +01:00

Bastien Montagne commented

2016-12-09 10:13:58 +01:00

Thanks for the report, but no bug here, this is expected behavior (as explained by @zeauro).

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Apply Rotation & Scale command works incorrectly on Empties (2.78a windows) #50178