How do I capture Ultra High-Resolution images at 8K, even though my monitor is only 1080p?
How do I capture Ultra High-Resolution images at 8K, even though my monitor is only 1080p?
I require capturing exceptionally detailed screenshots from my video games, and Nvidia DSR allows my system to operate at a maximum resolution of 3840x2160 at a 4.00x upscale. However, I’m seeking to acquire images with resolutions of 7680x4320 or preferably even greater than 4K. My display is set to 1920x1080, and I’m not concerned whether my computer utilizes a custom resolution for this purpose; my primary objective is to obtain high-resolution captures directly within the games themselves.
It’s impossible to achieve genuine 4K visuals this way. A screenshot created using DSR, even simulating a higher resolution, won't produce an actual 4K image due to your monitor’s inherent 1080p limitations. DSR artificially increases the resolution internally, but then reduces it back to your screen’s display size. Without this downsampling, your monitor couldn't even show the enhanced image.
Similarly, attempting to upload simulated 4K video to YouTube will result in it being treated as 1080p content. Scaling it up to 1440p might appear better than 1080p because YouTube uses a significantly higher data rate to transform the 1440p footage, but it won’t replicate true 1440p pixel density.
If you intend to display this content in a slideshow format on YouTube or similar platforms, I suggest limiting the resize to 1440p. Attempting further enlargement will quickly expose the lack of actual pixels.
I have videos illustrating the differences between a standard 1080p upload and one resized to 1440p, demonstrating how YouTube’s increased 1440p conversion bitrate compensates for the reduced pixel count. For example, you can easily notice pixelation towards the end of a car chase scene in the first video compared to the second, which was resized. This is because YouTube uses approximately 3 to 4 times more data per frame for 1440p conversion, despite having fewer pixels than 1080p. That’s why they recommend a bitrate of 12,000 for 1080p videos and 30,000 for 1440p.
Therefore, when undertaking this project, consider not just the changes on your system but also the conversion bitrates offered by the hosting service you choose.
If a slideshow is your goal, I recommend Avidemux – it’s straightforward and produces good results with minimal effects, including fade-ins and fade-outs, and Lanczos3 resizing. Its simplicity ensures speed and stability during encoding. However, it employs ABR (Average Bitrate) encoding, which is significantly superior to VBR (Variable Bitrate). I suggest using Two-Pass ABR with a bitrate of 30,000 and resizing to 1440p using x264 and an MP4 mixer.
The task is complete. You can achieve this as well.
My monitor resolution is 3440 by 1440, and I’ve obtained screenshots at a resolution of 6880 by 2880.
https://steamcommunity.com/sharedfiles/f...=474409531
Assuming my recollection is accurate, I accomplished that feat with the assistance of Nvidia Ansel.
Indeed, my prediction was accurate; please examine the attached image and its resolution:
https://www.nvidia.com/content/dam/...ll...verlay.png