#downsampling

[pictureamoebae]

Mass Effect: Andromeda

Crossing my fingers that hattiwatti makes a version of his Cinematic Tools for ME:A. The game has Ansel support but it’s buggy (it removes some post-processing, even if only using the freecam - for example it strips ambient occlusion and some other shadowing). Still, with some perseverance and a hundred different tools it’s possible to take some nice shots.

[hq: 1, 2]

My Sara, if anyone is interested: http://imgur.com/a/lvRGa

[moosestrikesout]

[baglieg]

Content adaptive image downsampling algorithm by Kopf, Shamir & Peels, 2013: Content-Adaptive Image Downscaling (johanneskopf.de)

This is an algorithm for downsampling images that may produce better results than simpler popular methods such as nearest-neighbor or bicubic sampling. Notably, if you switch off one of the edge smoothing features, it doesn't mangle pixel art as much as other methods do.

Somebody translated the authors' pseudocode into MatLab code here (easier to read if you speak programmer better than you speak mathematician): Content-Adaptive-Image-Downsampling/downsampling.m at master · AyushRai09/Content-Adaptive-Image-Downsampling · GitHub

[pictureamoebae]

how do you get such large screenshots?

It depends which game I’m playing.

My No Man’s Sky screenshots use DSR (Dynamic Super Resolution). With nvidia cards (don’t know about AMD) you can turn on DSR in the control panel and specify which resolution multiplications you want to enable. Then, in games that support higher resolutions, you can choose your preferred resolution in the graphics options. I choose either 4K or 5K for NMS. DSR means the game is then downsampled -- which means it renders at 4/5K but is shrunk back down so it fits on my 1440p monitor, and any screenshots I take will be at that larger size. Downsampling requires a good deal of power from your PC’s hardware.

In The Sims 4, I hotsample, which is similar to downsampling but requires less raw power and is more flexible. Not all games support hotsampling, but on the plus side you don’t need a specfic brand of GPU to do it. I use a program called SRWE to hotsample. I wrote a tutorial explaining what it is, and taking you through all the steps needed to set it up and use it. It uses Mass Effect: Andromeda as its example, but you follow the same steps for TS4.

If you need any more help just let me know.

[vikoooy]

[Gamedesign-ABC] A wie Antialiasing

[Gamedesign-ABC] A wie Antialiasing

Willkommen zu einem neuen Format! Oft genug liest man in Artikeln oder Einstellungen in Videospielen irgendwelche Fachbegriffe, mit denen man nichts anfangen kann. Um ein wenig Licht in den Begriffe-Dschungel zu bringen, werde ich über die nächsten Wochen im Gamedesign-ABC* mal mehr, mal weniger bekannte Begriffe erläutern. Beginnen werde ich diese Reihe mit dem schönen Wort Antialiasing, was…

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[alcowarlock]

Sorry mates, but can anyone tells me ‘bout downsampling in Skyrim? (with ENB, NOT SE version) Just if in FO4 it was easy to do, even with my old v\card, but in Skyrim I can’t do this... When I changed resolution via NVidia CP, Sky just crashin’ on desktop before loading (it’s loading, aaaand... crash! without any warnings), even with ENB changes (AddDisplaySuperSamplingResolutions=true) and SkyrimPrefs.ini changes. Even If I disable ENB effects before loading. Is there something wrong am I doing? GeForсe GTX 960. 

[pictureamoebae]

What is hot sampling? Or can you steer me to the noob section of a helpful forum lol.. Tysm.

Hotsampling is similar to downsampling. The same end result but a different way of achieving it.

Here is a comparison of a DA:I picture taken at 1920x810 and again at 6k resolution (6144x2592). You’ll notice a big difference in image quality.

If you downsample a video game it means you’re rendering the image at a larger resolution than your monitor’s native resolution and shrinking it back down so it fits on the screen. 

So, for example, if you have a 1920x1080 monitor, you could downsample by forcing your graphics card driver to render the game at, say, 2560x1440 and shrink it back down to 1920x1080 so you can see the whole image. What it’s doing when it renders at 1440p is utilising more pixels than can normally be displayed by your monitor. That means more information is able to be rendered, rather than some information having to be interpolated. When viewed at your regular monitor size, this results in a cleaner, sharper image. Downsampling is an excellent form of anti-aliasing as a result.

The big drawback to this is that a lot more power needs to go into rendering all those extra pixels, even if the image is resized (downsampled) to fit on your monitor. Therefore, you need a pretty hefty PC to be able to play while downsampling, particularly if you want to go to 4k and beyond. With more demanding games this can be difficult to do, even with good GPUs.

Hotsampling is particularly useful for people who take screenshots but who aren’t necessarily that bothered about playing the game while downsampling. For these people, graphical fidelity is most important for the end shot, rather than during the experience of playing. 

Hotsampling lets you play at your native resolution (so, in our example, 1920x1080), but when you’re ready to take a screenshot you can momentarily render the image at a much higher resolution (so 2560x1440, or 3840x2160, etc). While it’s at this larger size it won’t fit on your monitor, so you’ll only be able to see some of the image. Once you’ve taken the screenshot, you can change the resolution back to native again. The screenshot will show the full image -- even the parts that didn’t fit on your screen -- and it will be at that larger size, so then when it’s displayed on a smaller screen it is downsampled - either automatically by a browser or manually if you choose to resize it in an image editor. 

The end result of both is the same: you get a screenshot that is larger than your native monitor resolution which, when resized in some way or another and viewed on your monitor, gives you better image quality. The benefit of hotsampling is that you can continue to play the game without constantly taxing your computer, and can theoretically as a result push the resolution of the screenshots further than you would otherwise be able to do.

There are various tools available that let you hotsample, but not all games are compatible. Downsampling, however, is relatively easy to do in many games now, thanks to technology like nvidia’s DSR (dynamic super resolution).

I hope that explained what it is. If you want help in achieving it in a particular game, let me know and if I’ll try to help, or at least point you in the right direction. The two main tools I use for hotsampling are SRWE and WBG. I prefer SRWE, and it’s still in active development to ensure compatibility and functionality. 

[a-turbid-flow]