[Home](./index.md) > [server](./server.md) > [RigidBody](./server.rigidbody.md) > [setAdditionalMassProperties](./server.rigidbody.setadditionalmassproperties.md) ## RigidBody.setAdditionalMassProperties() method Sets the additional mass properties of the rigid body. **Signature:** ```typescript setAdditionalMassProperties(additionalMassProperties: RigidBodyAdditionalMassProperties): void; ``` ## Parameters

Parameter	Type	Description
additionalMassProperties	[RigidBodyAdditionalMassProperties](./server.rigidbodyadditionalmassproperties.md)	The additional mass properties of the rigid body.

**Returns:** void