# Translucent Objects Aren't Affected by Refraction **URL:** \ **Category:** Rendering\ **Tags:** refraction, translucent, unreal-engine, masked, bug-report, question\ **Created:** [February 13, 2018, 10:47pm UTC](https://forums.unrealengine.com/t/translucent-objects-arent-affected-by-refraction/417250 "2018-02-13T22:47:05Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![CampionJK](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CampionJK](https://forums.unrealengine.com/u/CampionJK)\ **Post date:** [February 13, 2018, 10:47pm UTC](https://forums.unrealengine.com/t/translucent-objects-arent-affected-by-refraction/417250/1 "2018-02-13T22:47:05Z")
Hello, I’m running into an issue where objects (or particles) with a material set to a blend mode of Translucent aren’t distorted when seen through an object with refraction set. Objects (or particles) set to a blend mode of Masked do still get affected by refraction. Steps to re-create: 1. Create a new blank project. 2. Create a new material (M\_Refraction) and set its blend mode to translucent. 3. Give M\_Refraction an opacity of 0 and a refraction of 1.4 (So it’s noticeable.) 4. Create a second new material (M\_Transparent) and set its blend mode to translucent. 5. In the level place an object with M\_Refraction assigned to it in front of an object with M\_Transparent assigned to it. The object with M\_Transparent won’t be affected by the refraction of the object with M\_Refraction assigned to it. If you change the blend mode of M\_Transparent to masked it will start being affected by the refraction of the object with M\_Refraction assigned to it. While trying to troubleshoot this I came across this question: [http://answers.unrealengine.com/questions/73313/refraction-not-working-on-particles-in-lit-mode.html](http://answers.unrealengine.com/questions/73313/refraction-not-working-on-particles-in-lit-mode.html) in which the person asking the question was using a material with a blend mode set to transparent, so I think what I’m running into is not the expected behavior. Thanks! ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [February 14, 2018, 6:20pm UTC](https://forums.unrealengine.com/t/translucent-objects-arent-affected-by-refraction/417250/2 "2018-02-14T18:20:56Z")
Hello, We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue. [https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form](https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form) Thanks ---
**Author:** ![CampionJK](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CampionJK](https://forums.unrealengine.com/u/CampionJK)\ **Post date:** [February 15, 2018, 10:25pm UTC](https://forums.unrealengine.com/t/translucent-objects-arent-affected-by-refraction/417250/3 "2018-02-15T22:25:23Z")
Thanks, I’ve submitted a bug report and if a bug gets added to the public tracker I will comment here with its number! ---
**Author:** ![CampionJK](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CampionJK](https://forums.unrealengine.com/u/CampionJK)\ **Post date:** [February 20, 2018, 6:52pm UTC](https://forums.unrealengine.com/t/translucent-objects-arent-affected-by-refraction/417250/4 "2018-02-20T18:52:10Z")
This issue has been logged with the tracking number UE-55270. [http://issues.unrealengine.com/issue/UE-55270](http://issues.unrealengine.com/issue/UE-55270)