# Help : How to  improve shadow quality ?

**URL:** <https://forums.unrealengine.com/t/help-how-to-improve-shadow-quality/21285>\
**Category:** Rendering\
**Tags:** unreal-engine\
**Created:** [February 18, 2015, 3:30pm UTC](https://forums.unrealengine.com/t/help-how-to-improve-shadow-quality/21285 "2015-02-18T15:30:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tanakornxl](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@tanakornxl](https://forums.unrealengine.com/u/tanakornxl)\
**Post date:** [February 18, 2015, 3:30pm UTC](https://forums.unrealengine.com/t/help-how-to-improve-shadow-quality/21285/1 "2015-02-18T15:30:30Z")

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Hi I am new to this.  
This is picture from viewport before building light process.  
 ![111.png](https://d3kjluh73b9h9o.cloudfront.net/original/3X/1/9/19cb2c5904550a9898ccd58e9b24c496447f3b20.png)  
and this is picture after building light process.  
 ![222.png](https://d3kjluh73b9h9o.cloudfront.net/original/3X/d/9/d9b66818dd45a762e7d470100e7e4ad17d044c64.png)

I try with this parameter.  
 ![333.png](https://d3kjluh73b9h9o.cloudfront.net/original/3X/5/c/5c325b98875dc3d83b66412fe1bf545ba512eaac.png)

How I make this look the same? Any suggestion?

Thank you very much

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**Author:** ![anonymous\_user\_2ed5b4c7](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_2ed5b4c7](https://forums.unrealengine.com/u/anonymous_user_2ed5b4c7)\
**Post date:** [February 18, 2015, 3:58pm UTC](https://forums.unrealengine.com/t/help-how-to-improve-shadow-quality/21285/2 "2015-02-18T15:58:31Z")

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Hi!

Read this, i think it help

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>
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**Author:** ![darthviper107](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/darthviper107/32/710746_2.png) [@darthviper107](https://forums.unrealengine.com/u/darthviper107)\
**Post date:** [February 18, 2015, 5:12pm UTC](https://forums.unrealengine.com/t/help-how-to-improve-shadow-quality/21285/3 "2015-02-18T17:12:39Z")

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Your lightmap resolution is too low. It also looks like your lightmap UV’s are not very good, since the curtain is essentially a plane, it should be able to be mapped that way so that there aren’t so many seams.