Setting Snap Options

You can access a number of snap features from the Options tab of the Grid and Snap Settings dialog. Right-click any of the snap buttons on the main toolbar to display the Grid And Snap Settings dialog or choose Customize menu > Grid and Snap Settings, then click the Options tab.

Marker settings—Determine the color and size of the snap cursor. Turn off Display to turn off the snap cursor entirely.

Snap Strength—Determines how close the cursor needs to approach a snap point before the snap takes place. This is a global setting, affecting all snap interactions. Possible values range from 1 to 20, representing the pixels in a "search region" around the active point of the cursor. Default=8.

Snap to Frozen Objects—Normally, if an object is frozen you can't snap to it; this option lets you snap to frozen objects.

Settings for Angle and Percent Snap

The following Options settings are for two snap buttons that operate independently of standard snaps.

Angle (deg)—A global setting, in degrees, that determines the angle of rotation for a number of features in the program, including the standard Rotate transform. As you rotate an object (or group of objects), the object moves around a given axis in the increment you set. Angle snap also affects the following:

Pan/Orbit camera controls
FOV and Roll camera settings
Hotspot and Falloff light angles

For more information, see Angle Snap.

Percent—Sets a percentage increment during a scaling operation.

For more information, see Percent Snap.

Rotating and Scaling with Snaps

The effect of rotating and scaling with snaps depends on whether the Auto Key button is turned on or off.

Animate Off—Rotations and scales occur around the snap point. For example, using Vertex snap, you can rotate a box about any of its corners.

Animate On—Snap toggles are disabled, while Angle and Percent snaps remain active. Rotation and scaling occur around the pivot point of the object.

Translation Option

By default, the Use Axis Constraints option is off. The current toolbar setting for axis constraint (XY, for example) has no effect. Setting this option lets you use snaps in conjunction with axis constraints.

Settings for Spinner Snap

You set the spinner snap on the General panel of the Preferences dialog. Right-click the Spinner Snap button to display this panel.

Spinner snap—Sets a numerical increment for spinner fields. If you’re using generic units of 1 inch, a setting of 12 would let you resize objects by one foot with every click, or add 12 segments to a sphere.

The same setting applies to all spinner fields. Since spinner snap is a toggle, you can easily turn it on when needed and use the default at other times. Spinner snap has no effect on dragging a spinner, only on single clicks.

For more information, see Spinner Snap.