Fixed

Info

This article covers the behavior and properties of this particular constraint. For instructions on how to add constraints to your project and connect them to physics objects, see the Physics Constraints Overview article.

Behavior

A Fixed Constraint is like welding two objects together. Once connected, they act like a single object—even if they were separate before. They can’t move apart or rotate independently.

Although they may not be touching, they behave as though they are connected by solid matter. If one object rotates, the objects will rotate as a unit.

In the example above, the connected physics objects are Dynamic and thus are able to fall together.

However, if either one of the connected objects is of type Platform (Static), neither will move.

Likewise, if only one physics object is connected to a fixed constraint, it will treat the missing constraint as a platform.

Properties

The fixed constraint has no special properties.

Success

Learn about the next type of constraint, Distance Constraints.