I’m not sure what they’re trying to achieve with their VXGI work - if they are seriously going to stick with their ‘Maxwell only’ line then no one will ever use it for games. You would always need to have a fallback to Lightmass for AMD / non-Maxwell users which are going to be about 98% of your playerbase, and for that 2% the extra work doesn’t seem worth it. And it won’t be supported on consoles because PS4 and Xbone are AMD APU’s.