Unfortunately it's still extremely expensive to do so. DXR documentation tells you to keep any hit shaders simple. It's also possible to fix transparency order

Unfortunately it's still extremely expensive to do so. DXR documentation tells you to keep any hit shaders simple. It's also possible to fix transparency ordering in rasterization using OIT and there is some hardware support for it (ROV), but it's also expensive and can be hard to do right so many games choose rough sorting