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Maniphest T56948

Multi-Object-Mode: Operators that need refactor on their logic
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Description

Some operators are working for multiple-object editing however are still not fully benefiting from it.
The most common case is that the operator works but only if all the objects have the same transformation matrix.

  • MESH_OT_select_similar (SIMEDGE_FACE_ANGLE, SIMFACE_AREA, SIMFACE_PERIMETER). rB0c1934f3c2d
  • MESH_OT_knife_project and MESH_OT_knife_tool.

Need to convert the code from screen space to world space. More details on D3637.

  • UV_OT_weld (UV_STRAIGHTEN, UV_STRAIGHTEN_X, UV_STRAIGHTEN_Y).

The current logic to determine the first and last selected vertex is not very compatible with multi-object. We should be able to select vertices from different objects, and use their position to determine the line extremes.

  • LATTICE_OT_flip

The axis need to be in world space, not local space.

Need to calculate direction taking scale into consideration.

Revisions and Commits

rB Blender
Needs ReviewD4080 Multi-Object EditMode: LATTICE_OT_flip
ClosedD3911 CURVE_OT_select_similar (SIMCURHAND_DIRECTION).
AbandonedD3908 Multi-Object-Mode: SIMEDGE_FACE_ANGLE
AbandonedD3899 Multi-Object-Mode: SIMFACE_PERIMETER
ClosedD3896 Multi-Object-Mode: SIMFACE_AREA

Related Objects
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StatusSubtypeAssignedTask
 ConfirmedTO DONoneT54641 Multi-object mode support (parent task)
 ConfirmedTO DONoneT56948 Multi-Object-Mode: Operators that need refactor on their logic

Event Timeline

Dalai Felinto (dfelinto) lowered the priority of this task from 90 to Normal.Sep 28 2018, 4:01 PM
Dalai Felinto (dfelinto) created this task.
Dalai Felinto (dfelinto) removed subscribers: Andrew Charlton (Scaredyfish), André Lourenço (alourenco), Eoin O'Neill (eoinoneill.yokai) and 4 others.
Dalai Felinto (dfelinto) updated the task description. (Show Details)Oct 24 2018, 5:03 AM
Habib Gahbiche (zazizizou) added a revision: D3896: Multi-Object-Mode: SIMFACE_AREA.Nov 5 2018, 1:10 AM
Habib Gahbiche (zazizizou) added a revision: D3899: Multi-Object-Mode: SIMFACE_PERIMETER.Nov 6 2018, 1:35 AM
Habib Gahbiche (zazizizou) added a revision: D3908: Multi-Object-Mode: SIMEDGE_FACE_ANGLE.Nov 6 2018, 10:25 PM
Dalai Felinto (dfelinto) updated the task description. (Show Details)Nov 7 2018, 2:01 AM
Habib Gahbiche (zazizizou) added a revision: D3911: CURVE_OT_select_similar (SIMCURHAND_DIRECTION)..Nov 7 2018, 12:18 PM
Dalai Felinto (dfelinto) mentioned this in rBab77f5b5fe59: Improvements on CURVE_OT_select_similar: SIMCURHAND_DIRECTION.Nov 9 2018, 12:40 PM
Dalai Felinto (dfelinto) updated the task description. (Show Details)Nov 9 2018, 12:41 PM
Dalai Felinto (dfelinto) mentioned this in rB0c1934f3c2d3: Multi-Objects: MESH_OT_select_similar worldspace completion.Nov 9 2018, 8:19 PM
Dalai Felinto (dfelinto) updated the task description. (Show Details)Nov 9 2018, 8:23 PM
Campbell Barton (campbellbarton) updated the task description. (Show Details)Nov 13 2018, 12:14 AM
Habib Gahbiche (zazizizou) added a subscriber: Habib Gahbiche (zazizizou).Nov 15 2018, 9:15 PM

Not sure if LATTICE_OT_flip should be really using a global axis instead of local one. If you have two objects for example, flipping on a global x-axis would effectively mean flipping each object on local axis, and then swap the position of the two objects.

The image shows an example of two flipped lattices on the global axis. Note how the origins of the two objects have been swapped, since flipping happened in edit mode.

I think this is not desired, so LATTICE_OT_flip should probably be kept as it is. In case this behavior is desired, then it can be done in object mode, e.g. scale by -1.

Dalai Felinto (dfelinto) added a comment.Nov 15 2018, 9:18 PM

You are assuming the objects are not rotated, which is not always the case.

Habib Gahbiche (zazizizou) added a comment.Nov 15 2018, 9:33 PM

My point was that the objects might get translated in an undesired way, because flipping happens in edit mode.

So maybe at least give the user a choice? e.g. by taking into account the pivot point (median point or individual origins) as we did with snap selection to cursor?

Habib Gahbiche (zazizizou) mentioned this in T58625: knife_project broken.Dec 4 2018, 12:23 AM
Habib Gahbiche (zazizizou) added a revision: D4080: Multi-Object EditMode: LATTICE_OT_flip.Dec 14 2018, 7:45 PM
Dalai Felinto (dfelinto) removed Dalai Felinto (dfelinto) as the assignee of this task.Dec 23 2019, 4:35 PM
Dalai Felinto (dfelinto) added a project: Tracker Curfew.
Aaron Carlisle (Blendify) edited projects, added BF Blender, Modeling; removed Tracker Curfew, Code Quest.Feb 11 2020, 5:04 AM
Aaron Carlisle (Blendify) changed the subtype of this task from "Report" to "To Do".
Campbell Barton (campbellbarton) mentioned this in T74026: Knife tool doesn't work properly with multi-object editing.Feb 20 2020, 5:24 AM
Campbell Barton (campbellbarton) moved this task from Backlog to Medium Term on the Modeling board.Jun 17 2020, 3:10 PM