Ue5 uses DLSS (super sampling) to improve the FPS of the scene away from the optimization scheme of Caton

One 、 What is a graphics card DLSS technology ？

  from ：        What is a graphics card DLSS technology ？ - You know

        DLSS yes Nvidia One of the most innovative features released in recent years . It was originally designed to compensate for the loss of graphics card performance when using ray tracing , With this unique AI technology ,DLSS It can significantly improve the performance of the game while maintaining the display quality , Because of this , Released in subsequent iterations DLSS 2.0 Also become NVidia An independent function of the graphics card .

1、 to the end DLSS What technology is it ？

        DLSS Full name Deep Learning Super Sampling（ Deep learning supersampling ）. It is a video rendering technology ,Nvidia Using neural network supercomputers , Train their AI through deep machine learning , The specific way is to constantly let AI automatically compare ultra-high resolution still images （SSAA Super sampling anti aliasing version ） And low resolution images , Make artificial intelligence have the ability to infer the method to improve the image resolution from low to high . in other words , This technology renders graphics at a lower resolution to maintain high performance , Then apply various effects to output the overall effect of high-resolution image .

This technology is needed hfr （ Greater than 60 FPS） and high The resolution of the （4K） Running games are especially useful . for example , Use DLSS function , With 1080p Resolution rendering game frames , This load makes it easier to achieve a higher frame rate , Then zoom in to 4K Resolution output , So as to bring Ultra HD image display quality .

DLSS Technology depends on RTX Special hardware of graphics card Tensor The core . So at present, only RTX 20 Series and RTX 30 Series has this function . however RTX 30 The series is configured with Nvidia Second generation Tensor The core ,DLSS Better performance .

2、DLSS Performance improvements

        DLSS The main advantage of technology is that it can improve the frame rate of the game . How much performance improvement can be achieved depends on the original resolution 、GPU、DLSS Specific settings . Users can choose different DLSS Pattern , such as quality 、 Balance and Performance mode .

Use Quality model , You can get the best visual quality and the lowest performance improvement , Performance mode Can bring up to 70% Performance improvement of , But the visual quality will be greatly reduced , Balance mode The options are in between .

3、DLSS Development stage

        DLSS 1.0 And Nvidia Of NGX Use with supercomputers , For training based on AI Rendered RTX Video card Tensor The core .

AI After the network completes the training of the new game ,AI The model will be distributed to RTX In the video card . such ,RTX Video card Tensor The core has the same AI function , As long as the game supports DLSS function , Can play DLSS Performance of .

DLSS 1.0 The performance can be improved about 2 times , But many games didn't support .

2020 year 3 month ,Nvidia Released DLSS 2.0, This is a DLSS Updated version of , It uses a new deep learning neural network , Just render 25-50% The pixel （DLSS 2.1 Super performance mode requires only rendering 11% The pixel ）, And use new time feedback technology , And DLSS 1.0 Compared with clearer details and better stability . Because it can be used more effectively Tensor The core , So the speed ratio DLSS 1.0 It's getting close 2 times , It can achieve higher frame rate and eliminate pair GPU、DLSS Setting and resolution limits .

because DLSS 2.0 Not through a single game AI Training , Its implementation method is more general , in other words DLSS 2.0 Of AI The quality of the algorithm can be continuously improved with continuous training , therefore DLSS 2.0 Better compatibility with games .

2020 year 9 month ,Nvidia Released DLSS 2.1, Added for ultra high resolution Games Super performance mode 、 Yes VR Game support and support dynamic resolution . As long as the game's rendering engine supports dynamic resolution , It allows the source frame to dynamically change the resolution , The output image size remains unchanged .

4、DLSS 2.0 Optional mode

        DLSS 2.0 share 3 Optional image quality modes ： quality 、 Balance and performance ,DLSS 2.1 Also added Super performance Pattern . performance Mode improves performance but also reduces image quality .

Use 2.0, performance Mode improves performance most significantly , The game can be changed from 1080p Upgrade to 4K, This is a 4 Zoom in （2 Times the width and 2 Times the height ）. Balance The mode reaches 3 Zoom in , and quality Mode use 2 Zoom in .DLSS 2.1 Introduced Super performance The pattern is 16 Zoom in , You can configure RTX 3090 The machine of the graphics card is 8K The resolution of the (7680 x 4320) Run the game .

        DLSS The iteration of makes it possible to display better image quality in the image area with moving objects . In the fan blade image above DLSS 2.1 This version of rendering looks better than using DLSS 1.0 The image of is much better .

5、 Which graphics cards support DLSS

Nvidia Of RTX 20 Series and 30 The series fully supports DLSS.

• GeForce RTX 2060
• GeForce RTX 2060 Super
• GeForce RTX 2060 12GB
• GeForce RTX 2070
• GeForce RTX 2070 Super
• GeForce RTX 2080
• GeForce RTX 2080 Super
• GeForce RTX 2080 Ti
• GeForce RTX 3060
• GeForce RTX 3060 Ti
• GeForce RTX 3070
• GeForce RTX 3070 Ti
• GeForce RTX 3080
• GeForce RTX 3080 Ti
• GeForce RTX 3090

        RTX 30 series DLSS Better performance than the RTX 20 series , because RTX 30 Series of graphics cards are equipped with the second generation Tenso The core , It can provide higher single core performance .

6、DLSS The future development of Technology

        DLSS Technology may eventually become Nvidia RTX One of the most influential functions of the graphics card . The ray tracing effect is very beautiful , But this function consumes the computing power of the graphics card , It often has a considerable impact on the performance of the graphics card , and DLSS At present, technology is not as powerful as we hope , but DLSS It provides us with a balanced solution , Make the game run with higher resolution and higher frame rate .

DLSS When it was first released, it seemed to be a niche function of low-end graphics cards , But that's not the case . contrary ,DLSS It can also improve cyberpunk on high-end graphics cards 2077 And control the visual quality of games , While maintaining a high frame rate .DLSS Technology not only improves the performance of low-end graphics cards , At the same time, it has also become the future development direction of high-end graphics cards .

NVidia Of RTX 3090 The video card has 24GB Explicit memory of , When raytracing and DLSS When the function , Can be 8K Resolution rendering 《 Wolfenstein ：Young Blood》 Such games . Even though 8K Resolution is far from universal , but 4K However, the display of has become more and more popular . Gamers can 1080p or 1440p Rendering , And use DLSS Output 4K High resolution and keep 50-60fps, That is, higher frame rate without obvious loss of image quality .

DLSS Technology will continue to iterate , At the same time, there will be more games and DLSS Technical compatibility .

7、AMD Is there a similar technology ？

        AMD stay 2021 In, a new solution was announced called FidelityFX Super Resolution abbreviation FSR, This is for NVIDIA Of DLSS（ Deep learning supersampling ） Technical response .

Nvidia Of DLSS and AMD Of FSR All help the graphics card balance between performance and resolution , But these two technologies are implemented in completely different ways .NVidia DLSS Technology depends on Neural Networks 、 Supercomputer processing and artificial intelligence , and FidelityFX Use software algorithms to achieve similar results . in addition DLSS Technology can only be owned Tensor The core RTX Work on the graphics card , and AMD Based on software implementation , therefore FSR Compatible with various graphics options .

Two 、UE5 combination DLSS Solutions for

2.1 download DLSS Shanyueji sharing

2.2 Will download DLSS Copy to the engine directory

 

2.3 open UE5 The project of , Choose to install DLSS plug-in unit ：

2.4 Then restart the project , Set parameters ：

 Quality For the highest quality .

Run to see the effect ,end......