Okay, in the editor or in the .ini file (whatever you perfer) do this:
- Enable Virtual Textures
- Support Hardware Ray Tracing
- Use Hardware Ray Tracing when available
- Shadow Map Method set to VSM (Virtual Shadow Maps)
- Generate Mesh Distance Fields
- Disable Allow Static Lighing
I guess you would like to only use Lumen in the project, otherwise don’t do the 6th step.
So, go with this and compile the shaders after that you can turn off the 3th & 4th if you want. If you have Nanite I would go with VSM (Virtual Shadow Maps).