# Normal Plus Opacity

**URL:** <https://forums.unrealengine.com/t/normal-plus-opacity/407463>\
**Category:** Rendering\
**Tags:** normal, opacity, unreal-engine, question\
**Created:** [October 20, 2017, 2:13am UTC](https://forums.unrealengine.com/t/normal-plus-opacity/407463 "2017-10-20T02:13:10Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![anonymous\_user\_6ee703af](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_6ee703af](https://forums.unrealengine.com/u/anonymous_user_6ee703af)\
**Post date:** [October 20, 2017, 2:13am UTC](https://forums.unrealengine.com/t/normal-plus-opacity/407463/1 "2017-10-20T02:13:10Z")

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I was told that my glass map should be plugged into opacity into the material slot with my texture, but enabling opacity turns off normal map and messing with the transparency options has inverted my map to the point where everything’s invisible but the glass texture. Could somebody please explain this to me?

 ![217300-ue4001.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/7/9/8799ff18a0bb319eded78e2ffc2ac3d9d9b81d26.jpeg)

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**Author:** ![anonymous\_user\_f26c856c1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f26c856c1](https://forums.unrealengine.com/u/anonymous_user_f26c856c1)\
**Post date:** [November 8, 2017, 4:23pm UTC](https://forums.unrealengine.com/t/normal-plus-opacity/407463/2 "2017-11-08T16:23:29Z")

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Hi!

You should use Blend mode Translucent for glass!  
And then change (on the Translucency tab) the Lighting mode to Surface Translucency Volume and you will get back your options!!

Good luck! 🙂

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**Author:** ![syrods](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@syrods](https://forums.unrealengine.com/u/syrods)\
**Post date:** [August 31, 2023, 6:49pm UTC](https://forums.unrealengine.com/t/normal-plus-opacity/407463/3 "2023-08-31T18:49:06Z")

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hi but ı want use normal,metalic and rougness if ı use translucent ı can’t use normal metalic and rougness how can ı fix this

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**Author:** ![jeffmeyer3d](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jeffmeyer3d/32/965059_2.png) [@jeffmeyer3d](https://forums.unrealengine.com/u/jeffmeyer3d)\
**Post date:** [August 31, 2023, 7:09pm UTC](https://forums.unrealengine.com/t/normal-plus-opacity/407463/4 "2023-08-31T19:09:11Z")

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On the material properties panel scroll down to Translucency  
Set the Lighting Mode to Surface Forward Shading from the dropdown

This should make the Normal, Metallic, and Roughness available

![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/1/6/216699b4485bea3e36cedabf571129c8370e7d76.png)

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<div class="post-metadata">

**Author:** ![syrods](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@syrods](https://forums.unrealengine.com/u/syrods)\
**Post date:** [September 1, 2023, 7:45am UTC](https://forums.unrealengine.com/t/normal-plus-opacity/407463/5 "2023-09-01T07:45:54Z")

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![2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/e/4/de48ee7c692276d25bdda2013871182aa4ab7fe9.png)  
This is my object. I did what you told and this happened. Thx for assistance.