# LightmassImportanceVolume Casting Shadows

**URL:** <https://forums.unrealengine.com/t/lightmassimportancevolume-casting-shadows/453881>\
**Category:** Rendering\
**Tags:** unreal-engine, UE4, question, static-shadows\
**Created:** [August 15, 2019, 2:53am UTC](https://forums.unrealengine.com/t/lightmassimportancevolume-casting-shadows/453881 "2019-08-15T02:53:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Doctor\_Kannon](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/doctor_kannon/32/1130101_2.png) [@Doctor\_Kannon](https://forums.unrealengine.com/u/Doctor_Kannon)\
**Post date:** [August 15, 2019, 2:53am UTC](https://forums.unrealengine.com/t/lightmassimportancevolume-casting-shadows/453881/1 "2019-08-15T02:53:43Z")

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Hello,

It seems the LightmassImportanceVolume is casting shadows on the landscape.

The shadow falls at the edge of the original landscape, which was approximately the size of the original LMIV.

 ![285043-lightmass-shadow.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/3/f/93f89060dc97339fc2f442f08cb42535c9d5f8fc.png)

With World Composition, additional landscapes have been added. The LMIV has been expanded (to the new edges).

Is this behavior expected? Is there a way to disable the LMIV shadows?

Thanks.