Translucent Reflections behind Glass

[NV96 (NickVeech)]

Hi there. During my recent project, bulding with alot of glass walls, i came upon something. When looking through a glass panel all specular reflections on the glass wall across vanish.
I was wondering if I set up something wrong in my project or its just a current limitation of the engine.

Im using UE5 with Lumen (global and reflections) and raytracing translucency reflections enabled. hardware ray tracing ect also enabled in the project settings.

Attached are two screenshots. One behind glass without the reflections and one infront of the glass.

Maybe someone can help me out here:)

[alberto]

Hello @NV96,
take a look to this post from this point, I think it can help you!

Gpu crash/d3d device removed error?

Sorry @Joshuab_artist there is something I’m not sure you know. The editor is not the final render, like in each 3d software as 3ds max or Blender. You can use raytracing with measure… In the editor, I use Lumen reflections and in final render raytracing… You can see in the metahuman project, that there are profiles for the movie render queue, there you can add as many variables and settings as you like… [image] Example car configurator has a lot for raytracing: [image] There is a huge …

[NV96 (NickVeech)]

So you can get these reflections only for renders by using console variables in the movie render queue? or is there a way to see them in the editor by manually changing certain ray tracing parameters?

[alberto]

You can see it in the editor too of course just texting the variables:

[alberto]

Also you can take a look to the documentation, sure explain better than me hah

Hardware Ray Tracing and Path Tracing Features

[Dwild97]

Hey did you ever manage to figure this one out? How to have glass reflection behind other glass in lumen?