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title: "Lens Effects Filter Generator"
canonical: "https://documentation.chaos.com/space/VRAYUNREAL/116558224/Lens%20Effects%20Filter%20Generator"
format: markdown
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This page provides information on the standalone Lens Effects Filter Generator that is included with V-Ray for Unreal.



## **Overview**

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## <span style="color: #000000">**Installation**</span>

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The Lens Effects Filter Generator tool is installed along with V-Ray for Unreal*.* Start the **filter_generator **executable in *C:\Program Files\Chaos Group\V-Ray\Unreal\tools*<span style="color: #000000"> </span>

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## **File Options**

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## **Radial Symmetric Pattern Parameters**

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## **Corona Flare Lines Pattern Parameters**

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## **Special Flare Lines Pattern Parameters**<span style="color: #000000"> </span>

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## **Lenticular Halo Parameters**<span style="color: #000000"> </span>

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## **Mix Parameters**<span style="color: #000000"> </span>

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