# TransformDirection

> Transforms direction from local space to world space.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.5/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

## TransformDirection(Vector3)

Transforms `direction` from local space to world space.

```csharp
public Vector3 TransformDirection(Vector3 direction)
```

### Parameters

**** (\[Vector3]\(/engine/6000.5/script-reference/unityengine/vector3)): 

### Returns

| Type                                                              | Description |
| ----------------------------------------------------------------- | ----------- |
| [Vector3](/engine/6000.5/script-reference/unityengine/vector3.md) |             |

### Remarks

This operation is not affected by scale or position of the transform. The returned vector has the same length as `direction`.

If you need the inverse operation to transform from world space to local space you can use [Transform.InverseTransformDirection](/engine/6000.5/script-reference/unityengine/transform/inversetransformdirection.md)

You should use [Transform.TransformPoint](/engine/6000.5/script-reference/unityengine/transform/transformpoint.md) for the conversion if the vector represents a position rather than a direction.

If you need to transform many directions at once consider using [Transform.TransformDirections](/engine/6000.5/script-reference/unityengine/transform/transformdirections.md) instead as it is much faster than repeatedly calling this function.

Additional Resources: [Transform.TransformDirections](/engine/6000.5/script-reference/unityengine/transform/transformdirections.md), [Transform.InverseTransformDirection](/engine/6000.5/script-reference/unityengine/transform/inversetransformdirection.md), [Transform.TransformPoint](/engine/6000.5/script-reference/unityengine/transform/transformpoint.md), [Transform.TransformVector](/engine/6000.5/script-reference/unityengine/transform/transformvector.md).

## TransformDirection(float, float, float)

Transforms direction `x`, `y`, `z` from local space to world space.

```csharp
public Vector3 TransformDirection(float x, float y, float z)
```

### Parameters

**** (\[float]\(https\://learn.microsoft.com/dotnet/api/system.single)): **** (\[float]\(https\://learn.microsoft.com/dotnet/api/system.single)): **** (\[float]\(https\://learn.microsoft.com/dotnet/api/system.single)): 

### Returns

| Type                                                              | Description |
| ----------------------------------------------------------------- | ----------- |
| [Vector3](/engine/6000.5/script-reference/unityengine/vector3.md) |             |

### Remarks

This operation is not affected by scale or position of the transform. The returned vector has the same length as `direction`.

If you need the inverse operation to transform from world space to local space you can use [Transform.InverseTransformDirection](/engine/6000.5/script-reference/unityengine/transform/inversetransformdirection.md)

You should use [Transform.TransformPoint](/engine/6000.5/script-reference/unityengine/transform/transformpoint.md) for the conversion if the vector represents a position rather than a direction.

If you need to transform many directions at once consider using [Transform.TransformDirections](/engine/6000.5/script-reference/unityengine/transform/transformdirections.md) instead as it is much faster than repeatedly calling this function.

Additional Resources: [Transform.TransformDirections](/engine/6000.5/script-reference/unityengine/transform/transformdirections.md), [Transform.InverseTransformDirection](/engine/6000.5/script-reference/unityengine/transform/inversetransformdirection.md), [Transform.TransformPoint](/engine/6000.5/script-reference/unityengine/transform/transformpoint.md), [Transform.TransformVector](/engine/6000.5/script-reference/unityengine/transform/transformvector.md).