As mentioned by others, not really. Lumen can use either software or hardware raytracing as one of its components, but it uses them for different purposes. (One

As mentioned by others, not really. Lumen can use either software or hardware raytracing as one of its components, but it uses them for different purposes. (One of the downsides of hardware raytracing is that you're limited to the very specific kinds of acceleration data structures that are supported by the GPU.) This documentation page covers some of the differences between Lumen's software and hardware raytracing modes: https://docs.unrealengine.com/5.0/en-US/lumen-technical-details-in-unreal-engine/ https://docs.unrealengine.com/5.0/en-US/lumen-technical-deta... And if you want a ridiculous amount of technical detail about how Lumen works, check out this talk: https://www.youtube.com/watch?v=QdV_e-U7_pQ https://www.youtube.com/watch?v=QdV_e-U7_pQ