It appears that LumenScene's Hardware Ray Tracing is causing light leaking into a sealed room (which should be perfectly black).
This bug does not appear to happen on AMD GPUs.
1. Download Licensee's test project and open on a device with a NVIDIA GPU (see addl. info URL)
2. In the room at an angle, observe massive light leaking
3. In axis-aligned room, observe no light leaking
4. In the room at an angle, remove the plant meshes. Observe that the light leaking stops.
4. Change the material on the plant mesh to something opaque (such as WorldGridMaterial). Observe that the light leaking changes, but remains.
5. Disable “r.LumenScene.DirectLighting.HardwareRayTracing” and observe the leaking stops. (You might need to toggle “r.Lumen.HardwareRayTracing” off then on again to get a full clear of the mesh cards, because it might keep bouncing the previously leaked light around.)
6. Observe that scaling up some of the meshes to ensure that there are no minute gaps does not stop the leaking.
error message when install in U.E 5.3 - IS-IN-FCO2-82
I am not able to find world outliner how to enable it?
When I open UE4 4.24.3 it appears that. Does anyone know how to solve?
How can i modify the param name in EQS node
Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows
Delay nodes occasionally don't fire the "Completed" output in a nativized build
Teleporter in the Creative Hub is Locked and cannot be accessed
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-213095 in the post.
| 1 |
| Component | UE - Graphics Features - Lumen |
|---|---|
| Affects Versions | 5.3.2 |
| Target Fix | 5.6 |
| Created | Apr 23, 2024 |
|---|---|
| Updated | Oct 18, 2024 |