Lossless Scaling

Released: Dec 28, 2018
Platforms: Windows
Last updated: 05 Sep 2026, 11:35 GMT

Updates & announcements

20 posts

14 Jul 2025Developer post
Performance Mode Hotfix
Resolved a critical bug that impacted quality in LSFG 3.1 Performance mode. Fixed an issue where holding down a key wouldn’t repeat input if it was part of a scaling hotkey combo. Added Macedonian localization. Big thanks to everyone helping make LS better. Also, check out the ex
Resolved a critical bug that impacted quality in LSFG 3.1 Performance mode.
Fixed an issue where holding down a key wouldn’t repeat input if it was part of a scaling hotkey combo.
Added Macedonian localization.
Big thanks to everyone helping make LS better.
Also, check out the excellent work by PancakeTAS on running LSFG on Linux:
https://github.com/PancakeTAS/lsfg-vk
Have fun!
Original post
11 Jun 2025Developer post
LSFG 3.1
This update introduces significant architectural improvements, with a focus on image quality and performance gains. Quality Improvements Enhanced overall image quality within a specific timestamp range, with the most noticeable impact in Adaptive Mode and high-multiplier Fixed Mo
This update introduces significant architectural improvements, with a focus on image quality and performance gains.
Quality Improvements
Enhanced overall image quality within a specific timestamp range, with the most noticeable impact in Adaptive Mode and high-multiplier Fixed Mode
Improved quality at lower flow scales
Reduced ghosting of moving objects
Reduced object flickering
Improved border handling
Refined UI detection
Introducing Performance Mode
The new mode provides up to 2× GPU load reduction, depending on hardware and settings, with a slight reduction in image quality. In some cases, this mode can improve image quality by allowing the game to achieve a higher base frame rate.
Other
Added Finnish, Georgian, Greek, Norwegian, Slovak, Toki Pona localizations
Have fun!
Original post
08 Mar 2025Developer post
Adaptive Frame Generation
AFG Introducing Adaptive Frame Generation (AFG) mode, which dynamically adjusts fractional multipliers to maintain a specified framerate, independent of the base game framerate. This results in smoother frame pacing than fixed multiplier mode, ensuring a consistently fluid gaming
10 Jan 2025Developer post
LSFG 3
Happy anniversary, LSFG! LSFG 3 is built on a new, efficient architecture that introduces significant improvements in quality, performance, and latency. Key improvements include: Better quality: Reduced flickering and border artifacts, with noticeable enhancements in motion clari
Happy anniversary, LSFG!
LSFG 3 is built on a new, efficient architecture that introduces significant improvements in quality, performance, and latency.
Key improvements include:

Better quality: Reduced flickering and border artifacts, with noticeable enhancements in motion clarity and overall smoothness.
Lower GPU load: A 40% reduction for X2 mode compared to LSFG 2 (non-performance mode). Over 45% reduction for multipliers above X2 compared to LSFG 2 (non-performance mode). The "Resolution Scale" feature remains an excellent way to further reduce GPU load. For instance, setting it to 90% roughly aligns with the LSFG 2 "Performance" mode.
Improved latency: Latency testing with the OSLTT tool (at 40 base FPS, X2) shows approximately 24% better end-to-end latency compared to LSFG 2.
Unlocked multiplier: LSFG 3 also introduces an unlocked multiplier, now capped at X20. While this offers greater flexibility, the following recommendations apply for optimal results: Base framerate: A minimum of 30 FPS is required (40 FPS or higher is preferred, with 60 FPS being ideal) at 1080p. For best overall experience, locking the game framerate is recommended. This helps to avoid 100% GPU load (reducing its impact on latency) and ensures smoother framepacing. For higher resolution use at higher than recommended framerates or use the "Resolution Scale" option to downscale input to 1080p: For 1440p, set it to 75%. For 4K, set it to 50%. Higher multipliers (e.g., X5 or above) are best suited for high refresh rate setups, such as: 48 FPS × X5 for 240Hz. 60 FPS × X6 for 360Hz. 60 FPS × X8 for 480Hz.
By CptTombstone:
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We’re also happy to announce the Lossless Scaling 3.0 UI Update Beta! To join the beta testing, follow these steps:
Open Steam.
Navigate to Lossless Scaling in your library.
Right-click and select Properties.
Go to the Betas tab and select "beta" from the dropdown.
Your feedback on the new UI is invaluable as we continue to improve!
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On a side note, the DXGI Capture API is working again in Windows 11 24H2, thanks to the KB5046617 update. Much appreciated, Microsoft.
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Have fun!
Original post
05 Jan 2025Developer post
Announcing LSFG 3
We’re excited to unveil LSFG 3, featuring significant improvements in quality, performance, and latency! It will officially launch on January 10, celebrating the anniversary of the LSFG 1 release. Thank you for being part of our journey, stay tuned for more updates!
16 Nov 2024Developer post
Resolution Scale, SGSR v1, and Windows 11 24H2 Compatibility
Introduced a new "Resolution Scale" option for LSFG. This feature allows input frames to be processed at a reduced resolution while generating output at the original resolution. For example, when playing at 1440p, setting the scale to 50% enables LSFG to generate 1440p output fro
Introduced a new "Resolution Scale" option for LSFG. This feature allows input frames to be processed at a reduced resolution while generating output at the original resolution. For example, when playing at 1440p, setting the scale to 50% enables LSFG to generate 1440p output from a 720p input. This provides a performance boost with only a minor quality trade-off (depending on the game). Note that this is not related to image scaling; rather, it reduces the amount of information available to LSFG for motion estimation.
LSFG 1.1 has been fully replaced by LSFG 2.3 and is no longer available. For instance, at a resolution scale of 90%, LSFG 2.3 Performance is both faster and of higher quality. If you still wish to use LSFG 1.1, LS 2.11 remains available in the Betas section on Steam.
Introduced SGSR v1, a highly lightweight spatial upscaler. For more details, visit the official page: https://github.com/SnapdragonStudios/snapdragon-gsr.
With the latest Windows 11 24H2 update, Microsoft changed how the Desktop Duplication API (DXGI) functions, making it heavily reliant on MPO (Multiplane Overlay) support. Without MPO, DXGI cannot reliably distinguish between updates from game window and the LS window when both are displayed on the same monitor. This prevents it from capturing only new frames, thereby breaking the existing framepacing algorithm. MPO support varies between systems, and there is no definitive way to determine why it is supported on some setups and not on others. You can use dxdiag to check if your system has MPO support. In some cases, you might be able to work around the issue. For instance, if you have two monitors connected, disconnecting one may force the remaining monitor to support MPO. As of the 24H2 update, DXGI is no longer a reliable capture method unless Microsoft changes its approach or Nvidia and AMD improve MPO support in their drivers. On the other hand, Microsoft has addressed a five-year-old bug in the Windows Graphics Capture (WGC) API, which previously prevented it from capturing only new frame updates. Starting with version 24H2, WGC now works as expected for the most part. Essentially, DXGI and WGC have switched roles in this update. WGC capture in LS has been updated with a new framepacing algorithm to replace DXGI on newer systems while maintaining the same behavior as before on older systems. DXGI continues to function normally up to version 23H2, but beyond that, it depends on MPO support. While WGC generally offers some advantages over DXGI, such as allowing LS to be recordable by most tools, it also has drawbacks without MPO support. Specifically, in games where a hardware cursor is displayed and VRR is enabled, WGC disables independent flip mode globally. This can lead to issues with LS and VRR functionality. Starting with Windows 11 24H2, MPO support becomes highly desirable. We can hope that future updates from Microsoft, Nvidia, and AMD will address these challenges. Notably, there have been reports that DXGI is functioning correctly again on the Windows 11 Dev branch.
Original post
11 Aug 2024Developer post
X4 Frame Generation & G-Sync Support
- LSFG 2.3 introduces X4 frame generation mode, generating three intermediate frames. The recommended usage scenario starts with the game's base framerate of 60 frames and for monitors with a high refresh rate of 240 and above, but can also be used with lower framerates (where th
04 Aug 2024Developer post
Quality fixes
- Reduction of LSFG artifacts on patterned textures and in dark scenes, especially noticeable when HDR is enabled. - LS1 sharpening correction, now the value 0 should match the original. Improved colors with HDR. - Added Portuguese and Serbian translations
18 Jul 2024Developer post
Framepacing and LSFG updates
This version aims to improve smoothness, framerate stability and latency for a wide range of GPUs. - LSFG 2.2 updates the UI detection part by reducing the level of over-detection, which eliminates some artifacts caused by UI detection and has a positive effect on the overall smo
06 Jun 2024Developer post
X3 Frame Generation
- Introducing the X3 frame generation mode. LSFG 2.1 can now generate two intermediate frames, effectively tripling the framerate. X3 has increased GPU load by approximately 1.7 times compared to X2 mode. At the same time, LSFG 2.1 Performance and LSFG 1.1 have been optimized to
08 May 2024Developer post
Introducing LSFG 2.0
- Enhanced architecture for processing large-scale movements, enabling efficient usage at lower frame rates. Hence, the minimum recommended base frame rates are 30/40 for 1080p/1440p resolutions respectively, with 60 FPS and higher recommended for an optimal experience. - Noticea
04 Apr 2024Developer post
General improvements and bug fixes
Reduced distortion/ghosting artifacts for LSFG that could occur at certain resolutions and low frame rates. Changes to DXGI capture that may improve frame rate stability and address possible other issues. Read the full changelog here .
07 Mar 2024Developer post
LSFG 1.1 – New UI detection model
Part of the LSFG has been reworked to detect UI more effectively. As a result, a significant reduction in UI ghosting and less impact on the main image in case of incorrect detection. Read the full changelog here .
09 Feb 2024Developer post
New frame capture API
New DXGI frame capture API, that should fix most performance issues, also allows the LS to be tied to the game's framerate and simply double the number of frames when frame generation is used. For the best LSFG experience, it is still recommended to lock the game's framerate to h
09 Jan 2024Developer post
Introducing Frame Generation - LSFG
Introducing LSFG 1.0 - a universal frame generator that can be used for most games and not only. Designed from the ground up using machine learning to run on a wide range of GPUs, including integrated graphics cards. Can be used with or without scaling. The recommended minimum to
09 Aug 2022Developer post
Introducing a new scaling type - LS1
Based on machine learning, LS1 is a small and fast general-purpose neural network optimized for scaling factors in the 1x–2x range. LS1 has similar performance and image quality to FSR, while surpassing it in many cases. There have also been many other changes since the release o
Based on machine learning, LS1 is a small and fast general-purpose neural network optimized for scaling factors in the 1x–2x range. LS1 has similar performance and image quality to FSR, while surpassing it in many cases.
There have also been many other changes since the release of version 2.0, the last major announcement. Summary for those who do not follow updates in the community:

New scaling types: Anime4K, Sharp bilinear, xBR
Cursor scaling option
Latency improvements
Experimental VRR support
Stretch to fullscreen mode
Windowed mode
Crop input option
Multi-display mode
I look forward to your feedback,
Have fun!
Original post
02 Mar 2022Developer post
Stand with Ukraine!
Due to the attack of the Russian Federation, I was forced to leave my home. Program development has been suspended indefinitely. You can support Ukraine, all income from sales of this program during the war will be directed to the needs of the Ukrainian army and the affected popu
01 Dec 2021Developer post
2.0 released!
What's new: UI: Completely new UI with themes support; Support for game profiles: you can still use the hotkey or scale button - game profile will be applied automatically, or you can use the auto scale option to let the game window to be scaled automatically whenever it is activ
What's new:
UI:

Completely new UI with themes support;
Support for game profiles: you can still use the hotkey or scale button - game profile will be applied automatically, or you can use the auto scale option to let the game window to be scaled automatically whenever it is activated (including window activation when the game starts);
Ability to choose preferred GPU (may be useful for laptops);
Option to run as administrator;
Option to start minimized at Windows startup;
Option to minimize to tray;
New settings storage;
Localizations for:

French
German
Portuguese, Brazilian
Russian
Spanish
Turkish
If you would like to translate the program into your own language, you can help me with this on Crowdin.
If your language is not listed please tell me to add it.
Core:

The latency has been improved. The "Low Latency" option has been removed as unnecessary;
LS will create a driver profile for itself on first launch to set "Prefer Maximum Performance" (NVIDIA only, relaunch required to apply profile);
FSR updated to 1.0.2 version, NIS updated with a fix;
Got rid of the old Windows API which was used for integer and nearest neighbor scaling. Now that uses modern way of capturing and scaling which paves the way for adding a large number of new scalers for pixel art graphics. The rendering options are now the same for all types of scaling.
What has been removed:

Shortcut support;
Alignment option;
Hide cursor option;
Multi-display option;
Anti-aliasing option;
Low latency option.
If you miss the previous version 1.6.0:
Steam > Library > Lossless Scaling > Properties > Betas > legacy1.6 - Lossless Scaling 1.6.0
To discuss the new version go here
Original post
18 Nov 2021Developer post
1.6.0 released - NVIDIA Image Scaling is here!
Added another great upscaler - NIS (NVIDIA Image Scaling). Notes: The sharpness setting is unified for both FSR and NIS in the range , where 1.0 is the maximum sharpness. Have fun!
13 Sep 2021Developer post
1.5.7 Released
This is the 20th update since the release of the first version 1.4.0 with FSR support. I decided to post it as a major update to tell about the main changes that happened during this time for those who do not follow the forum. The main efforts were spent on polishing the program,

Updates & announcements

Quality Improvements

Introducing Performance Mode

Other

AFG

Capture

Other

Latency

Tutorial

What's new:

UI:

Core:

What has been removed: