Customize menu > Grid And Snap Settings > Grid And Snap Settings dialog > Snaps tab
Main toolbar > Right-click a snap button
Keyboard > Hold Shift+right-click > Snaps quadrant
Keyboard > S (toggles snaps on and off)
Snaps give you control when creating, moving, rotating, and scaling objects, because they let you snap to specific portions of existing geometry during creation and transformation of objects or sub-objects. The controls in this dialog set the snap strength and other characteristics such as the snap target.
Note: Snap functionality includes several features that enhance ease of use. See the Snap Options topic for details.
You can specify the portion of the geometry where you will snap. For example, when Vertex is active, creation and transforms snap to the vertices of existing geometry. You can select any combination to provide multiple snap points. If Vertex and Midpoint are active, snaps occur both at vertices and at midpoints.
Snaps take precedence over axis constraints. If you highlight an axis constraint, such as Restrict to X, you can move the object only in X. But if you then turn on snaps, Restrict to X is suspended and not used.
The most common Snaps settings are available from an optional toolbar. To toggle display of the Snaps toolbar, right-click an empty area of the main toolbar, such as the section under the Reference Coordinate System drop-down, and choose Snaps. The toolbar buttons are shown next to the relevant commands, below and in the Snap Options topic.
3ds Max offers two different types of snap behavior. You can use snaps to move a selection to a snap point, an absolute snap. You can also use snaps to move a selection a relative distance from a snap point. This is called a relative snap. For further information, see To use relative snaps:.
To set grid and snap settings:
Snap markers appear when the mouse cursor is over existing geometry or on a grid, depending on the active snap types. Each snap type has a different display; clicking when the snap-specific display is visible snaps to that spot.
To display the Snaps shortcut menu:
To use relative snaps:
To use both constraint and snaps, do one of the following:
Example: To use 3D snaps and rotation transformations together:
From the Use Center flyout on the main toolbar, choose Use Transform Coordinate Center.
Override—This label changes to display the temporary snap type used by the Override system. For more information, see Snap Override.
These are the standard snap types used for grids, mesh, and shape objects. Non-grid snap types, when active, take priority over Grid Points and Grid Lines snaps: if the mouse is equally near a grid point and some other snap type, it will choose the other snap type.
Note: The button images shown below are from the Snaps toolbar.
These options snap to objects or sub-objects in a NURBS model.
The NURBS snaps settings are aids for creating and transforming objects, and are not constraints. The software does not maintain the relationship between the NURBS object and other objects you create or transform.
Point—Snaps to a point sub-object in a NURBS model.
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