---
title: ConstantForceEffect
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/constantforceeffect
---

# ConstantForceEffect

A force effect that exerts a constant force in a direction relative to the effect’s transform.

## Declaration

```swift
struct ConstantForceEffect
```

## Topics

### Initializers

- [init(strength:direction:)](realitykit/constantforceeffect/init(strength:direction:).md)

### Instance Properties

- [direction](realitykit/constantforceeffect/direction.md)
- [forceMode](realitykit/constantforceeffect/forcemode.md)
- [parameterTypes](realitykit/constantforceeffect/parametertypes.md)
- [strength](realitykit/constantforceeffect/strength.md)

### Instance Methods

- [update(parameters:)](realitykit/constantforceeffect/update(parameters:).md)

## Relationships

### Conforms To

- [Decodable](swift/decodable.md)
- [Encodable](swift/encodable.md)
- [ForceEffectProtocol](realitykit/forceeffectprotocol.md)

## See Also

### Built-in force effect types

- [ConstantRadialForceEffect](realitykit/constantradialforceeffect.md)
- [DragForceEffect](realitykit/dragforceeffect.md)
- [RadialForceEffect](realitykit/radialforceeffect.md)
- [TurbulenceForceEffect](realitykit/turbulenceforceeffect.md)
- [VortexForceEffect](realitykit/vortexforceeffect.md)