# Unit.visionFrustum

Sets the vision frustum for a unit

**Kind:** Member

**Environments:** Game

## Game

[Open the full Game reference](../Game-Script-Environment/Userdata/Unit.md#visionfrustum)

### Set

**Availability:** Server only

Sets the vision frustum for a unit

```lua
* self.unit.visionFrustum = {
*	 { 3.0, math.rad( 80.0 ),  math.rad( 80.0 ) },
*	 { 20.0, math.rad( 40.0 ), math.rad( 35.0 ) },
*	 { 40.0, math.rad( 20.0 ), math.rad( 20.0 ) }
* }
```

**Parameters:**

| Name | Type | Description |
| --- | --- | --- |
| `frustumData` | table | Table of tables of 3 numbers, detectionRange, hFov and vFov |