> For the complete documentation index, see [llms.txt](https://noskill.gitbook.io/titanfall2/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://noskill.gitbook.io/titanfall2/documentation/textures/shader/usdreflectivity.md).

# $reflectivity

**`$reflectivity`** overrides a [VTF](/titanfall2/documentation/textures/valve-texture-format-vtf.md) file's embedded reflectivity value. It tells [VRAD](https://developer.valvesoftware.com/wiki/VRAD) how much light should be bounced off the material, without affecting how much it receives.

{% hint style="info" %}
$reflectivity only affects [static light](https://developer.valvesoftware.com/wiki/Static_light).
{% endhint %}

### Usage

```
$reflectivity "[.5 .5 .5]"            //To bounce 50% of received light
$reflectivity "[0.75 0.75 0.75]"      //To bounce 75% of received light
```

The value is a [material vector](https://developer.valvesoftware.com/wiki/Material_vector), representing a [RGB vec](/titanfall2/documentation/textures/colors.md#vec) color value.

![Different reflectivity values.](/files/-M2Cool5e9QdGKlwfnsA)

![\[.25 .25 .75\] to add an extreme blue tint on the reflected light](/files/-M2CpG9jV7m_JoR9oH8f)

{% hint style="info" %}
Source: <https://developer.valvesoftware.com/wiki/$reflectivity>\
Reference: <https://nodraw.net/2011/02/reflectivity/>
{% endhint %}