# Beam particle refraction not affecting the world

**URL:** <https://forums.unrealengine.com/t/beam-particle-refraction-not-affecting-the-world/387892>\
**Category:** Rendering\
**Tags:** beam, refraction, unreal-engine, question, Blueprint\
**Created:** [March 14, 2017, 12:15pm UTC](https://forums.unrealengine.com/t/beam-particle-refraction-not-affecting-the-world/387892 "2017-03-14T12:15:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![anonymous\_user\_81e622981](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_81e622981](https://forums.unrealengine.com/u/anonymous_user_81e622981)\
**Post date:** [March 14, 2017, 12:15pm UTC](https://forums.unrealengine.com/t/beam-particle-refraction-not-affecting-the-world/387892/1 "2017-03-14T12:15:12Z")

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Hi,

i have an easy material with some refraction in it.  
I want to have a beam particle using this material!

Beam works just fine but the refraction does not do anything! It jsut seems that it is not there or so…

What am I doing wrong?

 ![129988-pic1.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/4/3/94334572189056e08a5781b178979350b1760bf2.png)

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**Author:** ![Efrye](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/efrye/32/1194658_2.png) [@Efrye](https://forums.unrealengine.com/u/Efrye)\
**Post date:** [June 12, 2017, 12:42am UTC](https://forums.unrealengine.com/t/beam-particle-refraction-not-affecting-the-world/387892/2 "2017-06-12T00:42:01Z")

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I’m having the same issue in 4.15. Is refraction simply not working with beam particles?

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**Author:** ![Mr.Jozin](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/mr.jozin/32/1137120_2.png) [@Mr.Jozin](https://forums.unrealengine.com/u/Mr.Jozin)\
**Post date:** [November 28, 2020, 7:31pm UTC](https://forums.unrealengine.com/t/beam-particle-refraction-not-affecting-the-world/387892/3 "2020-11-28T19:31:11Z")

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YES, I CONFIRM THAT, IT DOESNT WORK also ribbons doesnt have refraction as well

it;s interesting there is some work with normals, but it’s tiny compared with refaraction effect on mesh particles for example, btw it’s appeared niagara beams/ribbons doesnt have this issue