# Lumen GI and Reflections feedback thread **URL:** \ **Category:** Rendering\ **Tags:** Staff-Pick-UE, unreal-engine, Lumen\ **Created:** [February 22, 2022, 9:01pm UTC](https://forums.unrealengine.com/t/lumen-gi-and-reflections-feedback-thread/501108 "2022-02-22T21:01:05Z")\ **Posts on this page:** 1\ **Showing post:** 10
**Author:** ![Daniel\_Wright](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Daniel\_Wright](https://forums.unrealengine.com/u/Daniel_Wright)\ **Post date:** [February 23, 2022, 7:49pm UTC](https://forums.unrealengine.com/t/lumen-gi-and-reflections-feedback-thread/501108/10 "2022-02-23T19:49:35Z")
> Will lumen reflections on single layer water surfaces make it for 5.0 final? We won’t have Single Layer Water reflections for 5.0 unfortunately. It’s a glaring omission, any level using water looks broken. We’ll try to have this for 5.1. In the meantime you have to change water to opaque or stick with the SSR. > I would really like to know if there are any plans to improve support for chaos geometry collections, currently they don’t appear to generate distance fields and as a result have no representation in the Lumen scene. We’d like to implement distance fields for Geometry Collections but it would be pretty far down the priority list. Hardware Ray Tracing already supports Geometry Collections, however as a dynamically deforming mesh, it will cause an acceleration structure rebuild every frame so you’ll have to watch out for the performance cost. --- _[View the full topic](https://forums.unrealengine.com/t/lumen-gi-and-reflections-feedback-thread/501108)._