This Unreal Engine 5.5 video is about reproducing the Umbral Effect from Lords of the Fallen (2023).
We start by talking about Features vs Games and Releases, and then build our Umbral Cube, which will have the Material and Collision applied for the Umbral Effect. We then make a Material Parameter Collection (MPC) so that we can conveniently pass Umbral Cone and other settings to all the Actors using Umbral Materials. Next, we add the Update Cone function to the Third Person Character that updates the MPC Values. After that, we move on to starting the Umbral Material Logic, which will ultimately set the Material’s Opacity. We follow that up with adding softer edges to the visible area, the logic for Cone Length, and making it visible on Player Input. We then add Full Umbral Transition logic, and then include the ability to collide with the Umbral Actors when they’re visible.
And an image of the Material for your convenience - Alamar's Domain Umbral Effect Material - Album on Imgur
https://dev.epicgames.com/community/learning/tutorials/l3oj/unreal-engine-how-to-make-the-lords-of-the-fallen-umbral-effect