Tweak tool consistency & behavior #96544

New Issue

Campbell Barton · 2022-03-17T06:11:13+01:00

Campbell Barton commented

2022-03-17 06:11:13 +01:00

Currently the tweak tool in RMB select mode is virtually the same as the cursor tool, where left clicking sets the 3D cursor position.

This task proposes to make the tweak tool more useful by using the similar behavior as other editors (graph & node editor for e.g.).

Proposed Changes:

LMB press selects the element (unless it's already selected - in that case no selection takes place).
LMB drag moves the selection.
LMB click selects the element (deselecting all others).

Implications:

This makes it possible to tweak more than one item at a time.
It is no longer possible to set the 3D cursor with the tweak tool active.

Note that this could be supported by moving the new tweak tool behavior to the RMB, keeping LMB for the cursor (this would match the graph editor closely).

Notes:

Shift-LMB remains unchanged.
RMB selection remains unchanged.
Currently this only impacts behavior when RMB select is enabled. Once this has been tested to work acceptably we could look into desired behavior for the LMB select keymap.
This will be implemented as an experimental preference to user testing.

Open Topics:

Behavior when the tweak tool is used as a fallback (currently left as-is), since fallback tools should not be intrusive.
If these changes should also apply when selection is set to LMB (prefer to evaluate behavior on RMB first and evaluate LMB behavior afterwards).

Updates

Support in the 3D viewport: bb735bd518
Support in the UV editor: d356edf420
Preference enable for selection actions (not only the tweak tool) bc290b47cd

Testing

This feature can be enabled in the preferences:

In the interface section enable Developer Extras
In the keymap preferences:
- Set selection to Right mouse button.
- Enable Tweak Tool: Left Mouse Select & Move

NOTE: this proposal is based on a discussion with @JulienKaspar.

Currently the tweak tool in RMB select mode is virtually the same as the cursor tool, where left clicking sets the 3D cursor position. This task proposes to make the tweak tool more useful by using the similar behavior as other editors (graph & node editor for e.g.). **Proposed Changes:** - LMB press selects the element (unless it's already selected - in that case no selection takes place). - LMB drag moves the selection. - LMB click selects the element (deselecting all others). **Implications:** * This makes it possible to tweak more than one item at a time. * It is no longer possible to set the 3D cursor with the tweak tool active. ``` Note that this could be supported by moving the new tweak tool behavior to the RMB, keeping LMB for the cursor (this would match the graph editor closely). ``` **Notes:** - Shift-LMB remains unchanged. - RMB selection remains unchanged. - Currently this only impacts behavior when RMB select is enabled. Once this has been tested to work acceptably we could look into desired behavior for the LMB select keymap. - This will be implemented as an experimental preference to user testing. **Open Topics:** - Behavior when the tweak tool is used as a fallback (currently left as-is), since fallback tools should not be intrusive. - If these changes should also apply when selection is set to LMB (prefer to evaluate behavior on RMB first and evaluate LMB behavior afterwards). ---- **Updates** - Support in the 3D viewport: bb735bd518 - Support in the UV editor: d356edf420 - Preference enable for selection actions (not only the tweak tool) bc290b47cd ---- **Testing** This feature can be enabled in the preferences: - In the interface section enable **Developer Extras** - In the keymap preferences: - Set selection to **Right** mouse button. - Enable **Tweak Tool: Left Mouse Select & Move** ---- NOTE: this proposal is based on a discussion with @JulienKaspar.

Campbell Barton self-assigned this 2022-03-17 06:11:13 +01:00

Campbell Barton commented

2022-03-17 06:11:13 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Campbell Barton commented

2022-03-17 06:11:13 +01:00

Added subscribers: @JulienKaspar, @ideasman42

blender-admin commented

2022-03-17 06:27:31 +01:00

This issue was referenced by bb735bd518

This issue was referenced by bb735bd51807f2315558d8a2fa6fbd78a58f88f9

Dalai Felinto commented

2022-03-21 11:44:00 +01:00

Added subscriber: @dfelinto

Dalai Felinto commented

2022-03-21 11:44:00 +01:00

I think we should still have the box selection triggered by the drag event UNLESS the even starts on top of a selected element (vert, object, ...). Similar to how it works in the node editor.

Campbell Barton commented

2022-03-24 07:42:55 +01:00

@dfelinto after testing box selection I don't think this works so well for selection in the 3D viewport.

It works in the graph editor because selection occurs on isolated points, relying on the ability to click on nothing.

When testing this the following issues came up:

You can't select a small region of geometry that has anything surrounding it (because box select requires starting outside the object).
If there is any background scenery it's too easy to select & drag it (you end up having to turn "selectable" off for any background objects).

This could be made to work for X-ray/wire-frame edit-mode as selection is based on isolated points/edges, but don't think it's practical to have different behavior based on the shading mode.

@dfelinto after testing box selection I don't think this works so well for selection in the 3D viewport. It works in the graph editor because selection occurs on isolated points, relying on the ability to click on nothing. When testing this the following issues came up: - You can't select a small region of geometry that has anything surrounding it (because box select requires starting *outside* the object). - If there is any background scenery it's too easy to select & drag it (you end up having to turn "selectable" off for any background objects). This could be made to work for X-ray/wire-frame edit-mode as selection is based on isolated points/edges, but don't think it's practical to have different behavior based on the shading mode.

Philipp Oeser removed the

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Tweak tool consistency & behavior #96544