# Using a Fresnel effect on the Instance

<figure><img src="https://3751470283-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9KuznrlYB4kqrVq5qJMd%2Fuploads%2F5naYyWoanH1dSi2fUniC%2Fimage.png?alt=media&#x26;token=0cede16a-f905-4039-bfc7-dbaff71f79b4" alt=""><figcaption></figcaption></figure>

The "Use Global Fresnel" option adds a Fresnel effect on the whole Instance.

**Fresnel Settings**

<table><thead><tr><th width="177.71963154864713" align="right">Element</th><th width="594.4285714285713"> </th></tr></thead><tbody><tr><td align="right">Fresnel Sharpness</td><td>Lower values means the fresnel effect will affect more of the Terrain.</td></tr><tr><td align="right">Minimum Fresnel Value</td><td>Sets the minimum opacity of the color when Fresnel dosen't affect a zone.</td></tr><tr><td align="right">Maximum Opacity</td><td>Max Opacity of the Fresnel effect.</td></tr><tr><td align="right">Invert Fresnel</td><td>Inverts the Fresnel effect.</td></tr></tbody></table>