Hammer Hotkey Reference: Difference between revisions

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{{otherlang2
{{LanguageBar}}
|ru=Hammer_Hotkey_Reference:ru
 
|ko=Hammer_Hotkey_Reference:ko
{{toc-right}}
}}{{toc-right}}
=Tools=
==Tools==
{| class=standard-table
{| class=standard-table
|{{key|Shift|S}} || Selection Tool
|{{key|Shift|S}} || [[File:mt-selection.png]] [[Hammer_Selection_Tool|Selection Tool]]
|-
|-
|{{key|Shift|G}} || Magnify Tool
|{{key|Shift|G}} || [[File:Hammer_magnify.png]] [[Hammer_Map_Tools_Toolbar#Magnify_Tool_Shift.2BG|Magnify Tool]]
|-
|-
|{{key|Shift|C}} || Camera Tool
|{{key|Shift|C}} || [[File:mt-camera.png]] [[Hammer_Camera_Tool|Camera Tool]]
|-
|-
|{{key|Shift|E}} || Entity Tool
|{{key|Shift|E}} || [[File:mt-entities.png]] [[Hammer_Entity_Tool|Entity Tool]]
|-
|-
||{{key|Shift|B}} || Block Tool
|{{key|Shift|B}} || [[File:mt-block.png]] [[Hammer_Block_Tool|Block Tool]]
|-
|-
|{{key|Shift|A}} || Texture Application Tool
|{{key|Shift|A}} || [[File:Hammer_ToggleTextureApplication.png]] [[Applying_Textures|Texture Application Tool]]
|-
|-
|{{key|Shift|T}} || Apply Current Texture (to selected brushes)
|{{key|Shift|T}} || [[File:Hammer_ApplyCurrentTexture.png]] [[Applying_Textures|Apply Current Texture (to selected brushes)]]
|-
|-
|{{key|Shift|D}} || Decal Tool
|{{key|Shift|D}} || [[File:mt-decal.png]] [[Hammer_Decal_Tool|Decal Tool]]
|-
|-
|{{key|Shift|O}} || Overlay Tool
|{{key|Shift|O}} || [[File:mt-overlay.png]] [[Hammer_Overlay_Tool|Overlay Tool]]
|-
|-
|{{key|Shift|X}} || Clipping Tool
|{{key|Shift|X}} || [[File:mt-clipping.png]] [[Clipping|Clipping Tool]]
|-
|-
|{{key|Shift|V}} || Vertex Edit Tool
|{{key|Shift|V}} || [[File:mt-vertex.png]] [[Hammer_Vertex_Tool|Vertex Edit Tool]]
|}
|}


==File Operations==
=File Operations=
{| class=standard-table
{| class=standard-table
|{{key|Ctrl|N}} || Create a new file.
|{{key|Ctrl|N}} || Create a new file.
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|-
|-
|{{key|Ctrl|V}} || Paste objects from clipboard to cursor location (also Shift+Insert).
|{{key|Ctrl|V}} || Paste objects from clipboard to cursor location (also Shift+Insert).
|-
|{{key|Ctrl|Shift|V}} || Paste special.
|-
|-
|{{key|Ctrl|X}} || Cut selected objects to clipboard (also Shift+del).
|{{key|Ctrl|X}} || Cut selected objects to clipboard (also Shift+del).
|}
|}


==Grid==
=Grid=
{| class=standard-table
{| class=standard-table
||{{key|[}} || Decrease the size of the grid (also Alt+A).
||{{key|[}} || Decrease the size of the grid (also {{key|Alt|A}}).
|-
|-
|{{key|]}} || Increase the size of the grid (also Alt+S).
|{{key|]}} || Increase the size of the grid (also {{key|Alt|S}}).
|-
|-
|{{key|Shift|R}} || Toggle viewport grid on/off.
|{{key|Shift|R}} || Toggle viewport grid on/off.
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|}
|}


==Grouping==
=Grouping=
{| class=standard-table
{| class=standard-table
|{{key|Ctrl|G}} || Group selected objects.
|{{key|Ctrl|G}} || Group selected objects.
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: * this won't ungroup brushes tied to the same entity
: * this won't ungroup brushes tied to the same entity


==QuickHiding==
=QuickHiding=
{| class=standard-table
{| class=standard-table
|{{key|H}} || QuickHide selected objects.
|{{key|H}} || QuickHide selected objects.
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|}
|}


==Viewports==
=Viewports=
{| class=standard-table
{| class=standard-table
|{{key|Ctrl|A}} || Auto-size 4 views to center.
|{{key|Ctrl|A}} || Auto-size 4 views to center.
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|{{key|Shift|Z}} || Maximize/restore active viewport.
|{{key|Shift|Z}} || Maximize/restore active viewport.
|-
|-
|rowspan="2" | Arrow keys || Pan the view
| {{key|Up}} {{key|Down}} {{key|Left}} {{key|Right}} || Pan the view
|-
| * Nudge the current selection in the current 2D or 3D viewport.
|-
|{{key|Shift}}+Arrow keys || * Clone the current selection and nudge it in the active 2D or 3D viewport.
|-
|-
|{{key|Ctrl|I}} || Flip selected objects vertically.
|{{key|Ctrl|I}} || Flip selected objects vertically.
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|{{key|Ctrl|Shift|E}} || Center 3D viewport on currently selected objects.
|{{key|Ctrl|Shift|E}} || Center 3D viewport on currently selected objects.
|-
|-
| {{key|F2}} ||switch to 2D Top (x/y) view
| {{key|F2}} ||switch to 2D Top (X/Y) view
|-
|-
| {{key|F3}} || switch to 2D Side (x/z) view
| {{key|F3}} || switch to 2D Side (X/Z) view
|-
|-
| {{key|F4}} || switch to 2D Front (y/z) view
| {{key|F4}} || switch to 2D Front (Y/Z) view
|-
|-
| {{key|F5}} || switch to 3D textured view
| {{key|F5}} || switch to 3D textured view
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| {{key|Shift|F5}} || switch to 3D shaded textured view
| {{key|Shift|F5}} || switch to 3D shaded textured view
|}
|}
: * with "arrow key nudge" enabled in the "2d views" options menu


==2D Views==
With "arrow key nudge" enabled in the 2d views options menu, you can also utilize:
{| class=standard-table
| {{key|Up}} {{key|Down}} {{key|Left}} {{key|Right}} || Nudge the current selection in the current 2D or 3D viewport.
|-
|{{key|Shift}}+{{key|Up}} / {{key|Down}} / {{key|Left}} / {{key|Right}} || Clone the current selection and nudge it in the active 2D or 3D viewport.
|}
 
=2D Views=
{| class=standard-table
{| class=standard-table
|{{key|Tab}} || Switch view types (top/side/front).
|{{key|Tab}} || Switch view types (top/side/front).
|-
|-
|NumPad {{key|+}}/{{key|-}} || Zoom in/out (hold Ctrl to synchronize all 2D views).
|NumPad {{key|+}} / {{key|-}} || Zoom in/out (hold Ctrl to synchronize all 2D views).
|-
|-
|{{key|{{MW}}}} || Zoom in/out (hold Ctrl to synchronize all 2D views).
|{{key|MMB}} || Zoom in/out (hold Ctrl to synchronize all 2D views).
|-
|-
|{{key|1}} to {{key|9}} || Preset zoom levels.
|{{key|1}} to {{key|9}} || Preset zoom levels.
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|}
|}


==3D View==
=3D View=
{| class=standard-table
{| class=standard-table
|rowspan="3" | {{key|Spacebar}} (holding)|| Holding the {{LMB}} allows you to rotate your angle of view in any direction, while the viewing point remains stationary.
|rowspan="3" | {{key|Spacebar}} (holding)|| Holding the {{key|LMB}} left mouse button allows you to rotate your angle of view in any direction, while the viewing point remains stationary.
|-
|-
| Holding the {{RMB}} will allow you to move left, right, up, and down while keeping the viewing angle constant.
| Holding the {{key|RMB}} right mouse button will allow you to move left, right, up, and down while keeping the viewing angle constant.
|-
|-
| Holding both the left and right mouse buttons allows you to move forward and backward, as well as pan from side to side.
| Holding both the left and right mouse buttons allows you to move forward and backward, as well as pan from side to side.
|-
|-
|rowspan="2" | {{key|Spacebar|Shift}} || The {{LMB}} acts the same as above.
|rowspan="2" | {{key|Spacebar|Shift}} || The {{key|LMB}} left mouse button acts the same as above.
|-
|-
| The {{RMB}} allows you to move forward and backward, as well as pan from side to side.
| The {{key|RMB}} right mouse button allows you to move forward and backward, as well as pan from side to side.
|-
|-
|rowspan="2" | * Arrow keys ||  
|rowspan="2" | * {{key|Up}} {{key|Down}} {{key|Left}} {{key|Right}} ||  
(up/down) rotate angle of view up and down (change pitch)
(up/down) rotate angle of view up and down (change pitch)
|-
|-
|(left/right) rotate left and right (change yaw)
|(left/right) rotate left and right (change yaw)
|-
|-
|{{key|{{MW}}}} || Zoom in/out.
|{{key|MMB}} || Zoom in/out.
|-
|{{key|W}} || Move camera forward.
|-
|{{key|S}} || Move camera backward.
|-
|{{key|A}} || Move camera (strafe) left.
|-
|-
|{{key|D}} || Move camera (strafe) right.
|{{key|W}} {{key|A}} {{key|S}} {{key|D}} || Move camera.
|-
|-
|{{key|Z}} || Toggles mouse look ("noclip") navigation mode.
|{{key|Z}} || Toggles mouse look ("noclip") navigation mode.
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: * with "arrow key nudge" disabled in the "2d views" options menu
: * with "arrow key nudge" disabled in the "2d views" options menu


==Selection Tool==
=[[File:mt-selection.png]] Selection Tool=
{| class=standard-table
{| class=standard-table
|rowspan=4 | {{Key|{{LMB}}}} || (On an unselected object) Selects the object under the cursor and deselects any previously selected items
|rowspan=4 | {{key|LMB}} || (On an unselected object) Selects the object under the cursor and deselects any previously selected items
|-
|-
|(On a selected object) Cycles through resize, rotate, and skew  
|(On a selected object) Cycles through resize, rotate, and skew  
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: * when "Default to 15 degree rotation" is enabled in the "2D views" options menu
: * when "Default to 15 degree rotation" is enabled in the "2D views" options menu


==Camera Tool==
=[[File:mt-camera.png]] Camera Tool=
{| class=standard-table
{| class=standard-table
|{{key|Shift}} || Hold {{key|Shift}} and click and drag {{LMB}} to create a new camera.
|{{key|Shift}} || Hold {{key|Shift}} and click and drag {{key|LMB}} left mouse button to create a new camera.
|-
|-
|{{key|PgUp}} || Cycle to the previous camera position.
|{{key|PgUp}} || Cycle to the previous camera position.
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|{{key|Ctrl}} || Hold {{key|Ctrl}} and drag a camera or its point of interest to move both together.
|{{key|Ctrl}} || Hold {{key|Ctrl}} and drag a camera or its point of interest to move both together.
|-
|-
|{{Key|{{MW}}}} || (in 3D\Camera viewport) Move active camera forward or backward along its view axis
|{{key|MMB}} || (in 3D/Camera viewport) Move active camera forward or backward along its view axis
|}
|}


==Block Tool==
=[[File:mt-block.png]] Block Tool=
{| class=standard-table
{| class=standard-table
|{{Key|{{LMB}}}} || Click and drag left mouse to draw a new brush shape.
|{{key|LMB}} || Click and drag left mouse to draw a new brush shape.
|-
|-
|{{key|Enter}} || Create object drawn with block/entity tool.
|{{key|Enter}} || Create object drawn with block/entity tool.
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|}
|}


==(Point) Entity Tool==
=[[File:mt-entities.png]] Entity Tool=
{| class=standard-table
{| class=standard-table
|rowspan=2 | {{key|{{LMB}}}} ||  
|rowspan=2 | {{key|LMB}} ||  
(in 3D view) Click on brush surface to create the current entity on clicked location
(in 3D view) Click on brush surface to create the current entity on clicked location
|-
|-
|(in 2D view) Click to set entities X/Y/Z coordinates, press enter to create entity at current coordinates (or {{RMB}} on coordinate's center)
|(in 2D view) Click to set entities X/Y/Z coordinates, press enter to create entity at current coordinates (or {{key|RMB}} right mouse button on coordinate's center)
|-
|-
|{{key|Delete}} || Remove last created entity
|{{key|Delete}} || Remove last created entity
|}
|}


==Texture Application Tool==
=[[File:Hammer_ToggleTextureApplication.png]] Texture Application Tool=
{| class=standard-table
{| class=standard-table
|{{key|Ctrl}} || Hold {{key|Ctrl}} and click to select/deselect multiple faces.
|{{key|Ctrl}} || Hold {{key|Ctrl}} and click to select/deselect multiple faces.
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|{{key|Shift|Ctrl}} || Hold {{key|Shift}} and {{key|Ctrl}} when clicking a face to invert the selected faces on a brush with the unselected faces.
|{{key|Shift|Ctrl}} || Hold {{key|Shift}} and {{key|Ctrl}} when clicking a face to invert the selected faces on a brush with the unselected faces.
|-
|-
|{{Key|{{RMB}}}} || Apply the current material settings to the face that is clicked.
|{{key|RMB}} || Apply the current material settings to the face that is clicked.
|-
|-
|{{key|Shift}} + {{Key|{{RMB}}}} || Apply the current material settings to all the faces of a brush that is clicked.
|{{key|Shift}}+{{key|RMB}} || Apply the current material settings to all the faces of a brush that is clicked.
|-
|-
|{{key|Alt}} + {{Key|{{RMB}}}} || Apply all the current material settings to the face that is clicked with wrapping/alignment to the previously selected face.
|{{key|Alt}}+{{key|RMB}} || Apply all the current material settings to the face that is clicked with wrapping/alignment to the previously selected face.
|-
|-
|{{key|Alt|Shift}} + {{Key|{{RMB}}}} || Apply the current material settings to all the faces of the brush that is clicked on with wrapping/alignment to the previously selected face.
|{{key|Alt|Shift}}+{{key|RMB}} || Apply the current material settings to all the faces of the brush that is clicked on with wrapping/alignment to the previously selected face.
|}
|}
 
=Displacement Editing Tool=
==Displacement Editing Tool, Select Mode==
==Select Mode==
{| class=standard-table
{| class=standard-table
|{{key|Ctrl|{{LMB}}}} || Hold Ctrl and click to select multiple faces.
|{{key|Ctrl|LMB}} || Hold Ctrl and click to select multiple faces.
|-
|-
|{{key|Shift}} || Hold Shift and click a face to select all faces on the brush.
|{{key|Shift}} || Hold Shift and click a face to select all faces on the brush.
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|}
|}


==Displacement Editing Tool, Paint Geometry Mode==
==Paint Geometry Mode==
{| class=standard-table
{| class=standard-table
|{{Key|{{LMB}}}} || Applies selected affect to the encompassed vertex/vertices on selected faces
|{{key|LMB}} || Applies selected affect to the encompassed vertex/vertices on selected faces
|-
|-
|{{Key|{{RMB}}}} || Lowers the encompassed vertex/vertices on selected faces when Raise/Lower is selected
|{{key|RMB}} || Lowers the encompassed vertex/vertices on selected faces when Raise/Lower is selected
|-
|-
|{{key|Ctrl|{{LMB}}}} || Hold Ctrl and Left-Click to select multiple faces.
|{{key|Ctrl|LMB}} || Hold Ctrl and Left-Click to select multiple faces.
|-
|-
|{{key|Shift|Ctrl|{{LMB}}}} || Hold Shift and Ctrl, Left-Click a face to add all unselected faces on the brush to the current selection.
|{{key|Shift|Ctrl|LMB}} || Hold Shift and Ctrl, Left-Click a face to add all unselected faces on the brush to the current selection.
|-
|-
|{{key|Alt|{{LMB}}}} || hold Alt and Left-Mouse-Button drag to alter the size of the spatial editing sphere.
|{{key|Alt|LMB}} || hold Alt and Left-Mouse-Button drag to alter the size of the spatial editing sphere.
|-
|-
|{{key|Shift}} || hold Shift and Left-Click a vertex to drag that vertex along the current painting axis.
|{{key|Shift}} || hold Shift and Left-Click a vertex to drag that vertex along the current painting axis.
|-
|-
{{key|Alt|{{RMB}}}} || Click any brush or displacement face to make that face’s normal the current painting axis.
|{{key|Alt|RMB}} || Click any brush or displacement face to make that face’s normal the current painting axis.
|}
|}


==Displacement Editing Tool, Paint Alpha mode==
==Paint Alpha mode==
{| class=standard-table
{| class=standard-table
|{{Key|{{LMB}}}} || Applies secondary texture to the encompassed vertex/vertices on selected faces when Raise/Lower is selected
|{{key|LMB}} || Applies secondary texture to the encompassed vertex/vertices on selected faces when Raise/Lower is selected
|-
|-
|{{Key|{{RMB}}}} || Applies primary texture the encompassed vertex/vertices on selected faces when Raise/Lower is selected
|{{key|RMB}} || Applies primary texture the encompassed vertex/vertices on selected faces when Raise/Lower is selected
|-
|-
|{{key|Ctrl|{{LMB}}}} || Hold Ctrl and click to select multiple faces.
|{{key|Ctrl|LMB}} || Hold Ctrl and click to select multiple faces.
|-
|-
|{{key|Shift|Ctrl}} || Hold Shift and Ctrl, click a face to add all faces on the brush to the current selection.
|{{key|Shift|Ctrl}} || Hold Shift and Ctrl, click a face to add all faces on the brush to the current selection.
|}
|}


==Overlay Tool==
=[[File:mt-overlay.png]] Overlay Tool=
{| class=standard-table
{| class=standard-table
|{{key|Ctrl}} || hold Ctrl and click to select multiple overlays.
|{{key|Ctrl}} || hold Ctrl and click to select multiple overlays.
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: * Multiple overlays must be selected inside vertex mode for this to work, only one vertex can be snapped at a time. This option is mainly used for connecting line based overlays (spills, road lane markers, etc)
: * Multiple overlays must be selected inside vertex mode for this to work, only one vertex can be snapped at a time. This option is mainly used for connecting line based overlays (spills, road lane markers, etc)


==Clipper Tool==
=[[File:mt-clipping.png]] Clipping Tool=
{| class=standard-table
{| class=standard-table
|{{Key|{{LMB}}}}|| Click and drag left mouse to create a new clip plane.
|{{key|LMB}}|| Click and drag left mouse to create a new clip plane.
|-
|-
|{{key|Shift|{{LMB}}}} || Hold Shift and drag with the left mouse button to erase the previous clipping plane and create a new one.
|{{key|Shift|LMB}} || Hold Shift and drag with the left mouse button to erase the previous clipping plane and create a new one.
|-
|-
|{{key|Enter}} || Perform clip
|{{key|Enter}} || Perform clip
|-
|-
|{{key|Ctrl|{{LMB}}}} || hold Ctrl and drag with the left mouse button over a clipping handle to move both handles of the clipping plane at the same time.
|{{key|Ctrl|LMB}} || hold Ctrl and drag with the left mouse button over a clipping handle to move both handles of the clipping plane at the same time.
|-
|-
|{{key|O}} || Toggle the clip distance measurements display on and off (with mouse cursor in 2D view).
|{{key|O}} || Toggle the clip distance measurements display on and off (with mouse cursor in 2D view).
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|}
|}


==Vertex Edit Tool==
=[[File:mt-vertex.png]] Vertex Edit Tool=
{| class=standard-table
{| class=standard-table
|{{key|{{LMB}}}}|| select vertex/vertices or edges
|{{key|LMB}}|| select vertex/vertices or edges
|-
|-
|{{key|Ctrl|{{LMB}}}} || add vertex/vertices or edges to selection
|{{key|Ctrl|LMB}} || add vertex/vertices or edges to selection
|-
|-
|{{key|Ctrl|F}} || * Split face (vertex manipulation)
|{{key|Ctrl|F}} || * Split face (vertex manipulation)
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: * You must have two edges or vertices selected that are part of the same face.
: * You must have two edges or vertices selected that are part of the same face.


==Miscellaneous==
=Miscellaneous=
{| class=standard-table
{| class=standard-table
|{{key|Shift|L}} || Toggle Texture lock.
|{{key|Shift|L}} || Toggle Texture lock.
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|{{key|F1}} || Help
|{{key|F1}} || Help
|-
|-
|{{key|Ctrl|R}} || Create prefab from selected, the origin (0 0 0 x/y/z coordinates) will become prefabs center
|{{key|Ctrl|R}} || Create prefab from selected, the origin (0 0 0 X/Y/Z coordinates) will become prefabs center
|-
|{{key|Ctrl|Alt|S}} || Open Entity Sprinkle dialog. ({{csgo}},{{GMOD}},{{portal2}})
|}
|}
: * Does not work with the Magnify, Texture Application, or Overlay Tools
: * Does not work with the Magnify, Texture Application, or Overlay Tools


[[Category:Hammer]]
[[Category:Hammer]]

Latest revision as of 07:23, 12 July 2024

English (en)Español (es)한국어 (ko)Polski (pl)Русский (ru)中文 (zh)Translate (Translate)

Tools

⇧ Shift+S Mt-selection.png Selection Tool
⇧ Shift+G Hammer magnify.png Magnify Tool
⇧ Shift+C Mt-camera.png Camera Tool
⇧ Shift+E Mt-entities.png Entity Tool
⇧ Shift+B Mt-block.png Block Tool
⇧ Shift+A Hammer ToggleTextureApplication.png Texture Application Tool
⇧ Shift+T Hammer ApplyCurrentTexture.png Apply Current Texture (to selected brushes)
⇧ Shift+D Mt-decal.png Decal Tool
⇧ Shift+O Mt-overlay.png Overlay Tool
⇧ Shift+X Mt-clipping.png Clipping Tool
⇧ Shift+V Mt-vertex.png Vertex Edit Tool

File Operations

Ctrl+N Create a new file.
Ctrl+O Open an existing file.
Ctrl+S Save the current file.
Alt+B Export again.
F9 Run/Compile Map.
Ctrl+⇧ Shift+S Open Sound Browser.

Undo/Redo

Ctrl+Z Undo.
Ctrl+Y Redo.

Clipboard/Copy & Paste

Ctrl+C Copy selected objects to clipboard (also Ctrl+Insert).
Ctrl+V Paste objects from clipboard to cursor location (also Shift+Insert).
Ctrl+⇧ Shift+V Paste special.
Ctrl+X Cut selected objects to clipboard (also Shift+del).

Grid

[ Decrease the size of the grid (also Alt+A).
] Increase the size of the grid (also Alt+S).
⇧ Shift+R Toggle viewport grid on/off.
⇧ Shift+W Toggle grid snapping on/off.
P Toggle brush face 3D grid on and off (with mouse cursor in 3D view).
Ctrl+B Snap selected objects to grid (based on selection bounding box).
Ctrl+⇧ Shift+B Snap selected objects to grid (individually).

Grouping

Ctrl+G Group selected objects.
Ctrl+U * Ungroup selected groups.
Ctrl+R Create prefab with selected objects.
Ctrl+W Toggle Ignore Groups mode to bypass entity and group selection.
Ctrl+T Ties selected brushes to entity. If a selected brush is part of an existing entity you will have the option to add the other selected brushes to it.
Ctrl+⇧ Shift+W "Move to world", removes entity status from selected brushes
* this won't ungroup brushes tied to the same entity

QuickHiding

H QuickHide selected objects.
Ctrl+H QuickHide unselected objects. (Formerly mapped to "Hollow selected objects".)
U Unhide all.

Viewports

Ctrl+A Auto-size 4 views to center.
⇧ Shift+Z Maximize/restore active viewport.
↑ ↓ ← → Pan the view
Ctrl+I Flip selected objects vertically.
Ctrl+L Flip selected objects horizontally.
Ctrl+B Snap selected objects to grid (based on selection bounding box).
Ctrl+⇧ Shift+B Snap selected objects to grid (individually).
Ctrl+⇧ Shift+E Center 3D viewport on currently selected objects.
F2 switch to 2D Top (X/Y) view
F3 switch to 2D Side (X/Z) view
F4 switch to 2D Front (Y/Z) view
F5 switch to 3D textured view
⇧ Shift+F5 switch to 3D shaded textured view

With "arrow key nudge" enabled in the 2d views options menu, you can also utilize:

↑ ↓ ← → Nudge the current selection in the current 2D or 3D viewport.
⇧ Shift+↑ / ↓ / ← / → Clone the current selection and nudge it in the active 2D or 3D viewport.

2D Views

Tab ⇆ Switch view types (top/side/front).
NumPad + / - Zoom in/out (hold Ctrl to synchronize all 2D views).
MMB Zoom in/out (hold Ctrl to synchronize all 2D views).
1 to 9 Preset zoom levels.
Spacebar Hold Spacebar and left mouse button to drag the view position around.
Alt Disable snap to grid while dragging with the mouse.
Ctrl+E Center all 2D Views on currently selected objects.

3D View

Spacebar (holding) Holding the LMB left mouse button allows you to rotate your angle of view in any direction, while the viewing point remains stationary.
Holding the RMB right mouse button will allow you to move left, right, up, and down while keeping the viewing angle constant.
Holding both the left and right mouse buttons allows you to move forward and backward, as well as pan from side to side.
Spacebar+⇧ Shift The LMB left mouse button acts the same as above.
The RMB right mouse button allows you to move forward and backward, as well as pan from side to side.
* ↑ ↓ ← →

(up/down) rotate angle of view up and down (change pitch)

(left/right) rotate left and right (change yaw)
MMB Zoom in/out.
W A S D Move camera.
Z Toggles mouse look ("noclip") navigation mode.
P Toggle brush face 3D grid on and off (with mouse cursor in 3D view).
O Display frames per second and yaw/pitch of camera (with mouse cursor in 3D view).
I Display bounding boxes for all visible objects.
X or Ctrl+F9 Display selection handles for object resizing/rotation.
1 Decrease far clipping plane.
2 Increase far clipping plane.
Ctrl+⇧ Shift+E Center 3D View on selection.
* with "arrow key nudge" disabled in the "2d views" options menu

Mt-selection.png Selection Tool

LMB (On an unselected object) Selects the object under the cursor and deselects any previously selected items
(On a selected object) Cycles through resize, rotate, and skew
(Holding) Cycle through every object beneath the cursor. Good for selecting obscured items without moving your view.
(Click and drag) to select all objects touching the selection box upon releasing the Left mouse (hold Shift when releasing the Left mouse to select objects only entirely within the selection box).
Ctrl Hold Ctrl and Left-Click to select/deselect multiple objects.
Alt Disable snap to grid while dragging with the mouse.
⇧ Shift hold ⇧ Shift when moving an object to create a copy (clone) of that object.
* Hold ⇧ Shift (or Alt) when rotating to allow rotation unconstrained to 15 degrees intervals
⇧ Shift+Q or Esc Clear current selections.
PgUp Previous selection in "hit" list.
PgDn Next selection in "hit" list.
Ctrl+T Ties selected brushes to entity. If a selected brush is part of an existing entity you will have the option to add the other selected brushes to it.
Ctrl+⇧ Shift+W "Move to world", removes entity status from selected brushes
Alt+↵ Enter Open up Object Properties for the currently selected objects.
Ctrl+⇧ Shift+C Carve using selected geometry. (Known to cause vertex issues, use at your own discretion.)
* when "Default to 15 degree rotation" is enabled in the "2D views" options menu

Mt-camera.png Camera Tool

⇧ Shift Hold ⇧ Shift and click and drag LMB left mouse button to create a new camera.
PgUp Cycle to the previous camera position.
PgDn Cycle to the next camera position.
Delete Delete the current camera position.
Ctrl Hold Ctrl and drag a camera or its point of interest to move both together.
MMB (in 3D/Camera viewport) Move active camera forward or backward along its view axis

Mt-block.png Block Tool

LMB Click and drag left mouse to draw a new brush shape.
↵ Enter Create object drawn with block/entity tool.
Esc Delete object drawn with block/entity tool without creating it.
Alt+⇧ Shift+C Insert original prefab.

Mt-entities.png Entity Tool

LMB

(in 3D view) Click on brush surface to create the current entity on clicked location

(in 2D view) Click to set entities X/Y/Z coordinates, press enter to create entity at current coordinates (or RMB right mouse button on coordinate's center)
Delete Remove last created entity

Hammer ToggleTextureApplication.png Texture Application Tool

Ctrl Hold Ctrl and click to select/deselect multiple faces.
⇧ Shift Hold ⇧ Shift and click a face to select all faces on the brush.
⇧ Shift+Ctrl Hold ⇧ Shift and Ctrl when clicking a face to invert the selected faces on a brush with the unselected faces.
RMB Apply the current material settings to the face that is clicked.
⇧ Shift+RMB Apply the current material settings to all the faces of a brush that is clicked.
Alt+RMB Apply all the current material settings to the face that is clicked with wrapping/alignment to the previously selected face.
Alt+⇧ Shift+RMB Apply the current material settings to all the faces of the brush that is clicked on with wrapping/alignment to the previously selected face.

Displacement Editing Tool

Select Mode

Ctrl+LMB Hold Ctrl and click to select multiple faces.
⇧ Shift Hold Shift and click a face to select all faces on the brush.
⇧ Shift+Ctrl Hold Shift and Ctrl, click a face to add all unselected faces on the brush to the current selection.

Paint Geometry Mode

LMB Applies selected affect to the encompassed vertex/vertices on selected faces
RMB Lowers the encompassed vertex/vertices on selected faces when Raise/Lower is selected
Ctrl+LMB Hold Ctrl and Left-Click to select multiple faces.
⇧ Shift+Ctrl+LMB Hold Shift and Ctrl, Left-Click a face to add all unselected faces on the brush to the current selection.
Alt+LMB hold Alt and Left-Mouse-Button drag to alter the size of the spatial editing sphere.
⇧ Shift hold Shift and Left-Click a vertex to drag that vertex along the current painting axis.
Alt+RMB Click any brush or displacement face to make that face’s normal the current painting axis.

Paint Alpha mode

LMB Applies secondary texture to the encompassed vertex/vertices on selected faces when Raise/Lower is selected
RMB Applies primary texture the encompassed vertex/vertices on selected faces when Raise/Lower is selected
Ctrl+LMB Hold Ctrl and click to select multiple faces.
⇧ Shift+Ctrl Hold Shift and Ctrl, click a face to add all faces on the brush to the current selection.

Mt-overlay.png Overlay Tool

Ctrl hold Ctrl and click to select multiple overlays.
⇧ Shift * Hold Shift and then drag an overlay's vertex to snap it to another overlay's vertex.
* Multiple overlays must be selected inside vertex mode for this to work, only one vertex can be snapped at a time. This option is mainly used for connecting line based overlays (spills, road lane markers, etc)

Mt-clipping.png Clipping Tool

LMB Click and drag left mouse to create a new clip plane.
⇧ Shift+LMB Hold Shift and drag with the left mouse button to erase the previous clipping plane and create a new one.
↵ Enter Perform clip
Ctrl+LMB hold Ctrl and drag with the left mouse button over a clipping handle to move both handles of the clipping plane at the same time.
O Toggle the clip distance measurements display on and off (with mouse cursor in 2D view).
⇧ Shift+X Cycle through clip modes.

Mt-vertex.png Vertex Edit Tool

LMB select vertex/vertices or edges
Ctrl+LMB add vertex/vertices or edges to selection
Ctrl+F * Split face (vertex manipulation)
Alt+E Open Vertex Scaling dialog.
↵ Enter Close Vertex Scaling dialog and perform scale.
⇧ Shift+V Cycle vertex/edge display modes.
* You must have two edges or vertices selected that are part of the same face.

Miscellaneous

⇧ Shift+L Toggle Texture lock.
Ctrl+M Open Transform dialog.
Alt+P Open Check for Problems dialog.
Esc * Clear current selection or abort current tool/mouse operation (drag/drop) and goto the selection tool.
Ctrl+⇧ Shift+G Go to Brush Number dialog.
Ctrl+⇧ Shift+F Open Find Entities dialog.
Ctrl+⇧ Shift+R Open Replace Entities dialog.
F1 Help
Ctrl+R Create prefab from selected, the origin (0 0 0 X/Y/Z coordinates) will become prefabs center
Ctrl+Alt+S Open Entity Sprinkle dialog. (Counter-Strike: Global Offensive,Garry's Mod,Portal 2)
* Does not work with the Magnify, Texture Application, or Overlay Tools
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