52 lines
1.8 KiB
ReStructuredText
52 lines
1.8 KiB
ReStructuredText
.. index:: Object Constraints; Damped Track Constraint
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.. _bpy.types.DampedTrackConstraint:
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***********************
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Damped Track Constraint
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***********************
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The *Damped Track* constraint constrains one local axis of the owner to always point towards *Target*.
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This constraint uses a pure :term:`Swing` rotation, i.e. the shortest possible single axis rotation.
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In other 3D software you can find it with the name "Look at" constraint.
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Although usually associated with bones, Damped Track can align objects to point to (and follow)
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other objects or bones. It is important to note that the constraint aligns the origin's axes to
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point to the target's origin point. This is illustrated in the following figure.
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In each case the objects are set as Damped Track to +X.
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.. figure:: /images/animation_constraints_tracking_damped-track_axis.png
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:align: center
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A: Object vertices aligned along axis origin.
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B: Object vertices aligned away from origin.
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Options
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=======
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.. figure:: /images/animation_constraints_tracking_damped-track_panel.png
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Damped Track panel.
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Target
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:ref:`ui-data-id` used to select the constraint's target, and is not functional (red state) when it has none.
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See :ref:`common constraint properties <rigging-constraints-interface-common-target>` for more information.
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Track Axis
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Once the owner object has had a Damped Track constraint applied to it,
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you must then choose which axis of the object you want to point at the Target object.
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The negative axis direction cause the object to point away from
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the Target object along the selected axis direction.
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-X, -Y, -Z, X, Y, Z
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Influence
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Controls the percentage of affect the constraint has on the object.
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See :ref:`common constraint properties <bpy.types.constraint.influence>` for more information.
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Example
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=======
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.. peertube:: 7a287522-9515-44f6-a4f2-34c5b5fb5f7a
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