Knife Selection tool inaccessible through keyboard shortcut #78540

New Issue

Sundaram Ramaswamy · 2020-07-02T16:56:52+02:00

2020-07-02 16:56:52 +02:00

System Information
Operating system: macOS 10.15.5 (Catalina)
Graphics card: Radeon Pro 560X 4 GB and Intel UHD Graphics 630 1536 MB

Blender Version
Broken: 2.83.1, branch: master, commit date: 2020-06-25 09:47, hash: 8289fc688b3e, type: Release, build date: 2020-06-25, 10:31:24
Worked: 2.79b

Short description of error
Knife Tool, used to cut a mesh in Edit Mode, has an option to affect only the selection. As per the documentation this can be accessed using Shift-K. Pressing Shift-K doesn't give us the tool.

However, this is can be accessed via the Toolbar UI. Click on Knife icon, then click on check box Only Selected and we get the desired tool. Its keyboard shortcut (Shift-K) doesn't launch this tool though.

Exact steps for others to reproduce the error

Launch Blender 2.83.1
Select default cube object
Enter Edit Mode (Tab)
Enter face selection mode (3)
Select a single face
Press Shift-K

No Knife Select tool as per the documentation .

**System Information** Operating system: macOS 10.15.5 (Catalina) Graphics card: Radeon Pro 560X 4 GB and Intel UHD Graphics 630 1536 MB **Blender Version** Broken: 2.83.1, branch: master, commit date: 2020-06-25 09:47, hash: 8289fc688b3e, type: Release, build date: 2020-06-25, 10:31:24 Worked: 2.79b **Short description of error** *Knife Tool*, used to cut a mesh in Edit Mode, has an option to affect only the selection. As [per the documentation ](https://docs.blender.org/manual/en/2.83/modeling/meshes/tools/knife.html?highlight=knife#options) this can be accessed using **Shift-K**. Pressing **Shift-K** doesn't give us the tool. However, this is can be accessed via the Toolbar UI. Click on Knife icon, then click on check box Only Selected and we get the desired tool. Its keyboard shortcut (**Shift-K**) doesn't launch this tool though. **Exact steps for others to reproduce the error** - Launch Blender 2.83.1 - Select default cube object - Enter Edit Mode (Tab) - Enter face selection mode (3) - Select a single face - Press Shift-K No Knife Select tool as [per the documentation ](https://docs.blender.org/manual/en/2.83/modeling/meshes/tools/knife.html?highlight=knife#knife-tool).

Sundaram Ramaswamy commented

2020-07-02 16:56:52 +02:00

Added subscriber: @legends2k

Sharath commented

2020-07-02 17:35:23 +02:00

Added subscriber: @sharaths21312

Sharath commented

2020-07-02 17:35:23 +02:00

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

Sharath closed this issue

2020-07-02 17:35:23 +02:00

Sharath self-assigned this 2020-07-02 17:35:23 +02:00

Sharath commented

2020-07-02 17:35:23 +02:00

The keyboard shortcut is K, not shift+K. The docs do appear to be wrong.

blender-admin commented

2020-07-02 21:59:09 +02:00

This issue was referenced by 6846

Aaron Carlisle commented

2020-07-02 21:59:16 +02:00

Changed status from 'Archived' to: 'Resolved'

Sundaram Ramaswamy commented

2020-07-02 22:00:31 +02:00

In #78540#971623, @sharaths21312 wrote:
The keyboard shortcut is K, not shift+K. The docs do appear to be wrong.

@sharaths21312 Shortcut K is for Knife Tool, Shift-K is for knife tool that operates on current selection only. This bug is for the latter, not former. I think you are mistaken; please check the documentation for the nuance. K continues to work for the knife tool that cuts the geometry (all of it, irrespective of selection), while the bug is for knife tool that needs to operate only on the selection (Shift-K).

@Blendify Please don't change the documentation. This is not about the vanilla Knife Tool that works with K. The documentation is actually right; older versions of Blender used to work with Shift-K for the knife tool that operates only on the current selection.

> In #78540#971623, @sharaths21312 wrote: > The keyboard shortcut is K, not shift+K. The docs do appear to be wrong. @sharaths21312 Shortcut K is for Knife Tool, Shift-K is for knife tool that operates on current selection only. This bug is for the latter, not former. I think you are mistaken; please check the documentation for the nuance. K continues to work for the knife tool that cuts the geometry (all of it, irrespective of selection), while the bug is for knife tool that needs to operate only on the selection (Shift-K). @Blendify Please don't change the documentation. This is not about the vanilla Knife Tool that works with K. The documentation is actually right; older versions of Blender used to work with Shift-K for the **knife tool that operates only on the current selection**.

Sundaram Ramaswamy commented

2020-07-02 22:04:04 +02:00

Added subscriber: @Blendify

Sundaram Ramaswamy commented

2020-07-02 22:50:47 +02:00

@Blendify How do I reopen this issue? This seems to have been erroneously resolved.

Trying out K and Shift-K in 2.79b with some faces selected clearly shows the difference in behaviour between the two tools.

@Blendify How do I reopen this issue? This seems to have been erroneously resolved. Trying out K and Shift-K in 2.79b with some faces selected clearly shows the difference in behaviour between the two tools.

Aaron Carlisle commented

2020-07-02 23:09:23 +02:00

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

Aaron Carlisle reopened this issue

2020-07-02 23:09:23 +02:00

Sharath was unassigned by Sundaram Ramaswamy

2020-07-02 23:14:15 +02:00

Sundaram Ramaswamy commented

2020-07-02 23:14:16 +02:00

Removed subscriber: @sharaths21312

Aaron Carlisle commented

2020-07-02 23:51:48 +02:00

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

Aaron Carlisle commented

2020-07-03 01:33:49 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Aaron Carlisle closed this issue

2020-07-03 01:33:49 +02:00

Aaron Carlisle self-assigned this 2020-07-03 01:33:49 +02:00

Aaron Carlisle commented

2020-07-03 01:33:49 +02:00

Added subscribers: @WilliamReynish, @ideasman42

Aaron Carlisle commented

2020-07-03 01:33:49 +02:00

Looked into the code and this is possible with the built-in 2.7x keymap. This patch brings it back to work in both modes:

P1503: (An Untitled Masterwork)

diff --git a/release/scripts/presets/keyconfig/keymap_data/blender_default.py b/release/scripts/presets/keyconfig/keymap_data/blender_default.py
index 4b037f209bb..ce88a1eb074 100644
--- a/release/scripts/presets/keyconfig/keymap_data/blender_default.py
+++ b/release/scripts/presets/keyconfig/keymap_data/blender_default.py
@@ -4508,6 +4508,8 @@ def km_mesh(params):
         ("mesh.dissolve_mode", {"type": 'DEL', "value": 'PRESS', "ctrl": True}, None),
         ("mesh.knife_tool", {"type": 'K', "value": 'PRESS'},
          {"properties": [("use_occlude_geometry", True), ("only_selected", False)]}),
+        ("mesh.knife_tool", {"type": 'K', "value": 'PRESS', "shift": True},
+         {"properties": [("use_occlude_geometry", False), ("only_selected", True)]}),
         ("object.vertex_parent_set", {"type": 'P', "value": 'PRESS', "ctrl": True}, None),
         # Menus.
         op_menu("VIEW3D_MT_edit_mesh_faces", {"type": 'F', "value": 'PRESS', "ctrl": True}),
@@ -4543,8 +4545,6 @@ def km_mesh(params):
             ("mesh.faces_select_linked_flat", {"type": 'F', "value": 'PRESS', "shift": True, "ctrl": True, "alt": True}, None),
             ("mesh.spin", {"type": 'R', "value": 'PRESS', "alt": True}, None),
             ("mesh.beautify_fill", {"type": 'F', "value": 'PRESS', "shift": True, "alt": True}, None),
-            ("mesh.knife_tool", {"type": 'K', "value": 'PRESS', "shift": True},
-             {"properties": [("use_occlude_geometry", False), ("only_selected", True)]}),
             *_template_items_object_subdivision_set(),
         ])

@ideasman42 @WilliamReynish is there are rhyme or reason to the way things are now or is this change okay?

Looked into the code and this is possible with the built-in 2.7x keymap. This patch brings it back to work in both modes: [P1503: (An Untitled Masterwork)](https://archive.blender.org/developer/P1503.txt) ``` diff --git a/release/scripts/presets/keyconfig/keymap_data/blender_default.py b/release/scripts/presets/keyconfig/keymap_data/blender_default.py index 4b037f209bb..ce88a1eb074 100644 --- a/release/scripts/presets/keyconfig/keymap_data/blender_default.py +++ b/release/scripts/presets/keyconfig/keymap_data/blender_default.py @@ -4508,6 +4508,8 @@ def km_mesh(params): ("mesh.dissolve_mode", {"type": 'DEL', "value": 'PRESS', "ctrl": True}, None), ("mesh.knife_tool", {"type": 'K', "value": 'PRESS'}, {"properties": [("use_occlude_geometry", True), ("only_selected", False)]}), + ("mesh.knife_tool", {"type": 'K', "value": 'PRESS', "shift": True}, + {"properties": [("use_occlude_geometry", False), ("only_selected", True)]}), ("object.vertex_parent_set", {"type": 'P', "value": 'PRESS', "ctrl": True}, None), # Menus. op_menu("VIEW3D_MT_edit_mesh_faces", {"type": 'F', "value": 'PRESS', "ctrl": True}), @@ -4543,8 +4545,6 @@ def km_mesh(params): ("mesh.faces_select_linked_flat", {"type": 'F', "value": 'PRESS', "shift": True, "ctrl": True, "alt": True}, None), ("mesh.spin", {"type": 'R', "value": 'PRESS', "alt": True}, None), ("mesh.beautify_fill", {"type": 'F', "value": 'PRESS', "shift": True, "alt": True}, None), - ("mesh.knife_tool", {"type": 'K', "value": 'PRESS', "shift": True}, - {"properties": [("use_occlude_geometry", False), ("only_selected", True)]}), *_template_items_object_subdivision_set(), ]) ``` @ideasman42 @WilliamReynish is there are rhyme or reason to the way things are now or is this change okay?

Aaron Carlisle commented

2020-07-03 01:52:27 +02:00

I updated the manual to reflect the current state in: rBM6847