If you gonna cheat just give up on RT - this is what precomputed shadow maps, light maps, speculate maps etc are for together with various cheats to clip shadows when they overlap or already at max &quot;darkness&quot; same thing with lights when you have multiple lights sources you usually approximate by stacking the combine illumination values for light sources of the same direction.<p>I really don&#x27;t understand why are they chasing RT.<p>Also would be nice to know how well they can actually compute shaders, do tessellation and many other things because this is one heck of a fluff piece and I can remember at least 1 of these past 20 years that proclaimed that real time RT in hardware is here.