# \[Help\] Light through glass

**URL:** <https://forum.nomadsculpt.com/t/help-light-through-glass/12891>\
**Category:** Tips, Tutorials and Help\
**Created:** [October 27, 2023, 10:20pm UTC](https://forum.nomadsculpt.com/t/help-light-through-glass/12891 "2023-10-27T22:20:08Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Josepmy](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.nomadsculpt.com/josepmy/32/6428_2.png) [@Josepmy](https://forum.nomadsculpt.com/u/Josepmy)\
**Post date:** [October 27, 2023, 10:20pm UTC](https://forum.nomadsculpt.com/t/help-light-through-glass/12891/1 "2023-10-27T22:20:08Z")

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Why can’t the lights be seen through the glass? what am I doing wrong?

 ![IMG_5966](https://europe1.discourse-cdn.com/flex005/uploads/nomadsculpt/original/3X/8/e/8e22177e1be31eba9245bbafdbeea600477ce343.jpeg)  
 ![IMG_5965](https://europe1.discourse-cdn.com/flex005/uploads/nomadsculpt/original/3X/3/6/36b5c0cf6382e11c03c4f46880f8119521a5d7a6.jpeg)  
 ![IMG_5967](https://europe1.discourse-cdn.com/flex005/uploads/nomadsculpt/original/3X/7/d/7d6af5cfc0a14950356d731f6f5c92ea420ca81b.jpeg)

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**Author:** ![Holger\_Schoenischka](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.nomadsculpt.com/holger_schoenischka/32/3934_2.png) [@Holger\_Schoenischka](https://forum.nomadsculpt.com/u/Holger_Schoenischka)\
**Post date:** [October 27, 2023, 11:30pm UTC](https://forum.nomadsculpt.com/t/help-light-through-glass/12891/2 "2023-10-27T23:30:36Z")

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This does not work through refractive material.

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**Author:** ![Bezzo](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.nomadsculpt.com/bezzo/32/18150_2.png) [@Bezzo](https://forum.nomadsculpt.com/u/Bezzo)\
**Post date:** [October 28, 2023, 5:48am UTC](https://forum.nomadsculpt.com/t/help-light-through-glass/12891/3 "2023-10-28T05:48:54Z")

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It’s a limitation of the realtime engine - you cannot see additive material through refractive material.  
HOWEVER……you can select always unlit & that will show through.  
OR you can unwrap and add an emissive material to the object which will glow nicely through the refractive material.

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<div class="post-metadata">

**Author:** ![Josepmy](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.nomadsculpt.com/josepmy/32/6428_2.png) [@Josepmy](https://forum.nomadsculpt.com/u/Josepmy)\
**Post date:** [October 29, 2023, 10:44am UTC](https://forum.nomadsculpt.com/t/help-light-through-glass/12891/4 "2023-10-29T10:44:32Z")

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Thanks for the tip, it’s a solution but why appear this warning?

 ![IMG_5977](https://europe1.discourse-cdn.com/flex005/uploads/nomadsculpt/original/3X/3/9/39a7bb22166774992b3ca32067f7cb2544734db1.jpeg)

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**Author:** ![knacki](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.nomadsculpt.com/knacki/32/1297_2.png) [@knacki](https://forum.nomadsculpt.com/u/knacki)\
**Post date:** [October 30, 2023, 12:27pm UTC](https://forum.nomadsculpt.com/t/help-light-through-glass/12891/5 "2023-10-30T12:27:36Z")

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“Always unlit” does not allow reflectance.  
It is a standard hint, no matter if you have Matcap or anything else active that doesn’t support reflectacne. Same if you are in PBR rendering mode but switching one material to unlit. 🖖

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**Author:** ![Josepmy](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.nomadsculpt.com/josepmy/32/6428_2.png) [@Josepmy](https://forum.nomadsculpt.com/u/Josepmy)\
**Post date:** [October 30, 2023, 12:49pm UTC](https://forum.nomadsculpt.com/t/help-light-through-glass/12891/6 "2023-10-30T12:49:05Z")

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ah ok ok 👌