# Shaking / Jittering reflections

**URL:** <https://forums.unrealengine.com/t/shaking-jittering-reflections/479994>\
**Category:** Rendering\
**Tags:** refraction, Reflections, jitter, Raytracing, unreal-engine, Rendering, question\
**Created:** [March 9, 2021, 3:36pm UTC](https://forums.unrealengine.com/t/shaking-jittering-reflections/479994 "2021-03-09T15:36:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![zabadoy](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@zabadoy](https://forums.unrealengine.com/u/zabadoy)\
**Post date:** [March 9, 2021, 3:36pm UTC](https://forums.unrealengine.com/t/shaking-jittering-reflections/479994/1 "2021-03-09T15:36:54Z")

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Hello,

I have this test scene I made to try out high quality rendering with raytracing. I’m having the results I expect overall, but I’m getting very weird unstable reflections, that shake and jitter all over, as you can see in this export, notably on the “e” letter : [UE\_Test - YouTube](https://www.youtube.com/watch?v=JJlz9ee5vd8&ab_channel=BazT)

Do you know what could cause that ? I have no idea…  
Please note that everything is raytrayced (AO, GI, Reflections, Translucency + Refraction. Exporting with Movie Render Queue I used Aliasing settings, bumping up Temporal Sample Count to 64 and checking “Override Anti Aliasing” as specified in documentation, might it matter.

Thank you in advance for your help.