Use of GPU up scaling feature in Nvidia cards
Use of GPU up scaling feature in Nvidia cards
I upgraded to a 4K 55” tv/monitor (Samsung Qn90A series that supports gaming and HDR). I have an RTX 2080Ti GPU for rendering. Native resolution is 3840x2160. To increase rendering performance I wanted to render at a lower resolution and output at full native resolution by letting P3d perform the scaling. When I set to lower resolution (full screen mode) in P3d and let it scale to my resolution I get a kind of reasonable image but it but a tad blurry. My RTX GPU has the ability to HDR render as a scaled and sharpened output at the GPU level which providers a much crisper output (I am not talking about DLSS as I know P3d first support that feature yet). How would I set up P3d graphic parameters (and Nvidia parameters) so P3d accepts a fully rendered and scaled/sharpened 3840x2160 source image? Whenever I attempt this by selecting a scaling level lower than native in the GPU control panel and native resolution in P3d I end up with the original non scaled image in P3d my GPU control panel indicates the the resolution has switched back to native 4K 3840x2160 on my GPU -which looks great but has moderate to poor performance with all of my ads-one. However when I set P3d resolutions to match GPU scaling resolution (like Nvidia recommends) I get a very sharp upscaled image rendered at the lower resolution but the image is very very high contrast with too bright of whites. Am I doing this correctly? Should the brightness and contrast change that much? How do I deal with the brightness issue? Turn off HDR in P3d and fiddle with the brightness sliders?
