# sm.pathfinder.traversableRaycast

Looks at the surface of the navmesh from the start position toward the destination position to see if it is traversable.

**Kind:** Function

**Environments:** Game

## Game

``` { .lua .api-signature }
sm.pathfinder.traversableRaycast( world, start, destination, abilities? )
```

[Open the full Game reference](../Game-Script-Environment/Static-Functions/sm.pathfinder.md#traversableraycast)

**Availability:** Server only

If the distance isn't fully traversable, the out_fDistance is the traversable distance.

**Parameters:**

| Name | Type | Description |
| --- | --- | --- |
| `world` | [World](../Game-Script-Environment/Userdata/World.md) | The world to look in. |
| `start` | [Vec3](../Game-Script-Environment/Userdata/Vec3.md) | The path start |
| `destination` | [Vec3](../Game-Script-Environment/Userdata/Vec3.md) | The path destination |
| `abilities` *(optional)* | table | Table of actor abilities \{ canWalk=boolean, canSwim=boolean \}. Defaults to all abilities. |

**Returns:**

| Type | Description |
| --- | --- |
| boolean<br>number | True if fully traversable, and a traversable distance when not fully traversable. (distance becomes FLT_MAX when fully traversable) |