# Ray(Vector3, Vector3)

> Creates a ray starting at origin along direction.

## Definition

* **Type:** Constructor
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public Ray(Vector3 origin, Vector3 direction)
```

### Parameters

**** (\[Vector3]\(/engine/6000.0/script-reference/unityengine/vector3)): **** (\[Vector3]\(/engine/6000.0/script-reference/unityengine/vector3)): 

### Examples

```csharp
using UnityEngine;

public class ExampleClass : MonoBehaviour
{
    void Start()
    {
        // Create a ray from the transform position along the transform's z-axis
        Ray ray = new Ray(transform.position, transform.forward);
    }
}
```