Hello @Manking-1I it is possible to use it,will leave you the documentation about ray tracing so you can check if you have the correct ray tracing options enabled. There might be something causing your problem, and it could be that if Nanite is enabled for an object, ray tracing features use the Nanite Fallback Target (or fallback mesh) to cast shadows for standalone ray traced shadows. Because the fallback target often has fewer triangles than the Nanite mesh, this can cause visual artifacts since rays are traced against the triangles of the mesh. You can disable Nanite for this object or increase the Fallback Target value to reduce any artifacts.