Yes it autodetects resolution from desktop so if you run 4k 150% it will target 1440p not 2160p because your desktop is not pure native 4k, stupid autodetection of resolution. It's in the readme. Without DLSS it would look considerably better and given more details by artists also closer to a movie.
Trying the other demos now, had to freakin' sleep.
Atomic Heart: allows me 1080p and 1440p (don't have 4k+). Enable/disable DLSS, finallly! With DLSS it again looks like a blurry potato, hardly any better than RT off because the use of RT is small and easily faked otherwise. No GI or AO, only the not so important reflections and shadows. No demo seems to be PT, it's all just Unreal demos hybrid rendered with a couple of effects traced. Without DLSS looks less blurry and crappy but still a far cry from great. Looks quite fake since it only has very few features traced. Performance 40-60fps DLSS, 25,35-50fps no DLSS. Not a big difference but some scenes tank without DLSS. Loading the game causes 8GB VRAM usage, running it only needs 4GB. No idea what's it loading so long in all these demos, just Unreal being it's old slow self. Damn thing doesn't even register itself in Windows as an installed app so it doesn't appear on the uninstall list.
Justice... already managed to crash that thing. it launched in Windowed mode, click maximize... freezes and closes. XD
DLSS looks... well edges aren't as bad as previous demos but it also applies a heavy sharpen which looks ugly and cheap, might have as well used bicubic scaling with a high sharpening parameter. Without DLSS some scenes tank down, at least the low above river one does, otherwise the demo runs fairly fast with tracing unlike other two. Oh wait, it doesn't use Unreal, so yeah, who would have guessed right? Everything often runs faster than UnrealSnail since Unreal 1 was made. Ansel doesn't work, configs are probably locked, all I can find are some Editor config remains. Upper fps limit is set to monitor refresh and probably Vsync. 35-75fps (75Hz max) no DLSS. Probably the only demo that shows effects well and allows their toggle. Some things could be faked I think but other are clearly off screen reflections, dynamic shadows (SOTTR demo like), ...
None of the demos seem to run in exclusive fullscreen I think. All only windowed fullscreen.
For what the demos show there really isn't need for them to be several GB large or eat crap ton of RAM while running, yet they do. You could ship a whole game in their size.
Last edited by JackCY; 04-13-2019 at 05:50 AM.