# Fresnel, Panner, Pixel Depth Offset, UV Multiplier

### [Fresnel ](https://docs.unrealengine.com/4.27/en-US/RenderingAndGraphics/Materials/HowTo/Fresnel/)

You can add a Fresnel effect on top of your Base Color or Emissive Materials, and control their force, opacity, and if they affect the center of the mesh.&#x20;

![Red Fresnel effect over a blue sphere](https://1720136168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9eijyWmo2dAMvSuhkB3O%2Fuploads%2FqX6zTH1140901AbOyTh8%2Ffresnel.png?alt=media\&token=cb5c1281-9b12-4c86-88a9-4c5a958a54f2)

Fresnel Values offers the following settings :&#x20;

* Exponent

_How strong the fresnel effect will be_

* Center Value

_If a value is set, will use that value as the base for the center of the mesh (Before applying the Fresnel)_

* Opacity

_Opacity of the Fresnel._

You can also use Normal maps and/or use a Mask with them (Separated from the Global Settings.)

### Panner

It's possible to use a panner to move the texture in a specified direction with the Speed X and Y values.

Some nodes may have their own panner, independant of the Global panner.

You can combine the UV Breaking features, Triplanar and Panner to create a special effect !

### Pixel Depth Offset

Pixel depth offset is a setting allowing you to blend the object with another material.&#x20;

However, it will create visual glitches if "Cast Shadows" isn't disabled on the mesh it's applied on !

![Strength 50
Cast Shadows Disabled](https://1720136168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9eijyWmo2dAMvSuhkB3O%2Fuploads%2Fd7ut9GfnnBdq6ZQsxfFY%2FHighresScreenshot00008.png?alt=media\&token=eb50b5e7-c083-46c7-b4c2-59bebc42bfe7)

### UV Multiplier

Multiplies the UVs on the X or Y axis.
