# Planar Reflections

## Planar Reflections

Planar reflections can be added by adding a planar reflections component to your camera. There should always be only 1 planar reflections component in your scene (or 0 if you don't want planar reflections).

![](https://869580074-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LzInl6-QAxSvemyRKBI%2F-MG2pKgkq3dPxEapk33y%2F-MG2pVHjzOGO05a1pqjb%2Fimage.png?alt=media\&token=5b2d51f6-70bf-4896-8313-05d741e43a11)

First, you need to select the water object. Planar reflections are rendered by a secondary camera and this camera needs a reference point.

You can set the render scale, height offset and layer mask of the reflections. You can also set whether or not the skybox should be reflected.

{% hint style="warning" %}
These settings are shared for all water objects.
{% endhint %}

## Performance

Planar reflections are rendered using a secondary camera and this can be expensive. To improve performance you can do one of 3 things.

* Don't use planar reflections, don't add the planar reflections component to your camera.
* Reduce the render scale of the planar reflections
* Limit which objects are reflected using the layer mask