AMD’s FSR has received a positive response across the gaming and tech community by delivering a hardware-agnostic (in a sense) open source solution comparable to NVIDIA. AMD FSR runs on both NVIDIA GeForce and AMD Radeon GPUs, with a few developers How easy it is to implement in-game It looks like people are digging Source code We have discovered that the technology behind the FSR may be a bit too similar to what NVIDIA has been offering in the control panel for some time.
AMD FSR may be a bit too similar to NVIDIA’s Lanczos upscaler revealed in the source code, but NVIDIA GPUs have been in technology for some time and can be enabled in all games.
As discovered by Alexander Battaglia of Digital Foundry, AMD FSR (FidelityFX Super Resolution) technology is a modified version, but based on Ranchos luxury. The FSR algorithm actually consists of two main paths: EASU (edge adaptive spatial upsampling) and RCAS (robust contrast adaptive sharpening). The EASU path is suitable for low-end GPUs on desktops and laptops because it provides space-only scaling at a relatively low cost.
We recommend that you read the FSR documentation. The 2-tap Ranchos is a space-up scaler. pic.twitter.com/gAEika6zma
— Alexander Battalia (@Dachsjaeger) August 4, 2021
It is mentioned in Open source code An FSR presentation that the EASU scalar uses a modified fast approximation method for the standard Ranchos (size = 2) kernel. The modified FSR version of the Lanczos filter also eliminates negative lobes, also known as ringing, by using the closest 2×2 input texels or 2-tap approximation.
At the heart of the FSR is a state-of-the-art algorithm that detects and recreates high-resolution edges from the source image. These high resolution edges are a key element needed to transform the current frame into a “super-resolution” image.
FSR provides consistent upscaling quality regardless of whether the frame is moving or not. This provides a quality advantage over other types of upscalers.
The FSR consists of two main paths:
Upscaling path called EASU (Edge Adaptive Spatial Upsampling) Also performs edge reconstruction. In this path, the input frame is analyzed and the main part of the algorithm detects gradient inversions from the set of input pixels (essentially looking at how adjacent gradients differ). Gradient inversion intensity defines the weight applied to pixels reconstructed at display resolution. Sharpening path called RCAS (Robust Contrast-Adaptive Sharpening) Extracts pixel details in an upscaled image.
interesting. After all, it’s a variant of Ranchos. Before the FSR was released, I asked AMD about this (it looked like Lanczos-y to me), and they said the upscaling algorithm was “fully developed in-house”. .. It doesn’t seem to be completely accurate right now …
You may want to read the FSR documentation, 2 tap Lanczos is the spatial upscaler. pic.twitter.com/gAEika6zma
— Alexander Battaglia (@Dachsjaeger) August 4, 2021
Interesting. So it is a Lanczos variant after all. Prior to FSR being released, I had asked AMD about this (it looked Lanczos-y to me), and they said that the upscaling algorithm was "developed entirely in-house". Which doesn't seem to be entirely accurate now…
— Ryan Smith (@RyanSmithAT) August 4, 2021
Battaglia further states that the technology has been available in NVIDIA’s control panel for several years.[3D設定の管理]Within the panel, users can enable GPU scaling and control image sharpness with more taps than FSR for high quality. It works on older Turing & Pascal GPUs and is globally applicable to all DirectX 9, 10, 11, 12, Vulkan, and OpenGL games.
This is not the most efficient way to upscale your game, as there are certain restrictions that apply to the use of this method compared to AMD’s FSR and NVIDIA DLSS implemented on a per-game basis. There are the following restrictions.
Currently, the following restrictions apply:
Scaling is not supported on MS Hybrid systems. HDR display driven by pre-touring GPU does not support scaling Scaling does not work in VR Scaling does not work on displays that use the YUV420 format. Scaling uses aspect ratio scaling, not integer scaling Sharpening does not work on HDR displays GPU scaling means that the game is only played in full screen mode Window mode or borderless window mode. Some G-SYNC displays have a 6-tap / 64-phase scaler for better scaling. Provided by Turing’s 5-tap / 32-phase scaler. To prevent the application or DWM from accidentally triggering scaling, change it first. Select the required (application. Turing’s 5-tap-up scaler may not connect to a particular monitor based on the monitor vblank timing. Turing’s 5-tap-up scaler may not work if the input resolution is greater than 2560px In either x-dimensional or y-dimensional. Scaling is automatically turned off when you switch display devices. Of the control panel[デフォルトに戻す]The option does not currently restore the upscaling resolution.
via NVIDIA
Also, because this upscaling method works across the screen, the game UI or menus are blurry compared to a good solution where the developer knows for sure which screen elements need to be upscaled. It may become unreadable. And it’s not. AMD has chosen Lanczos Upscale as the basis for its FSR technology, made it open source for ease of integration within AAA titles, and made improvements in several ways while allowing it to be applied for general purposes as Jarred Walton. It’s interesting. Toms Hardware I’m pointing out.
“As a former software developer, it’s much easier for an administrator to turn a new feature into a green light if the new feature isn’t a small part of the potential user and benefits 100% of the intended user base. You can prove that. Needs Among many, they exceed the needs of a few and those who do.
Of course, the proof is eating pudding, and FSR pudding is about as tasty as natively rendered pudding. It may not be a little mixed, but you will hardly notice it, at least if you are using super quality or quality profiles. Don’t get too absorbed in congratulating AMD for creating something new and useful when what we really need to do is ask what took so long. “
Jarred Walton-Tom’s Hardware
It’s also pretty clear that AMD’s FSR will be a great technology, but for those who want to try it, an interesting comparison is to compare games that use FSR and see what NVIDIA’s luxury looks like to it. Is to confirm. This is almost possible with NVIDIA GeForce graphics cards for the last two years, including GeForce 10 and 16 series products.But this is only useful for AAA game titles that you don’t have FSR or DLSS Lanczos filters via the NVIDIA Control Panel are a good option for support in this case.
News source: Tom’s hardware
https://wccftech.com/amd-fsr-based-on-modified-lanczos-upscaler-enabled-on-nvidia-gpus-using-control-panel-in-all-games/ AMD FSR based on the modified Ranchos Upscaler can be enabled on the NVIDIA GPU using the control panel to get similar results in the game
