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# ConstantRadialForceEffect

A force effect that pulls objects toward its center with a constant strength.

```
struct ConstantRadialForceEffect
```

## Overview

This force’s magnitude is constant and does not depend on objects’ distances to the effect origin.

## Topics

### Initializers

[`init(strength: Double)`](/documentation/RealityKit/ConstantRadialForceEffect/init(strength:))

Creates a radial force effect with constant magnitude.

### Instance Properties

[`var forceMode: ForceMode`](/documentation/RealityKit/ConstantRadialForceEffect/forceMode)

The type of force this effect applies.

[`var parameterTypes: PhysicsBodyParameterTypes`](/documentation/RealityKit/ConstantRadialForceEffect/parameterTypes)

The input rigid body parameters.

[`let strength: Float`](/documentation/RealityKit/ConstantRadialForceEffect/strength)

The magnitude of the force.

### Instance Methods

[`func update(parameters: inout ForceEffectParameters)`](/documentation/RealityKit/ConstantRadialForceEffect/update(parameters:))

Calculates the radial forces with constant magnitude for rigid bodies from the force effect.

## Relationships

### Conforms To

[`Encodable`](/documentation/Swift/Encodable)

[`Decodable`](/documentation/Swift/Decodable)

[`ForceEffectProtocol`](/documentation/RealityKit/ForceEffectProtocol)

---

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