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Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 12 Dec 2025, 12:15
by radeko
I would like to recommend the Lossless Scaling from Steam.
I tested it on an LG C1 TV in chrome browser youtube videos playback.
For video, I mainly use 1080p 24-30 fps. I set the Frame Gen Multiplicator to 4-5x depending on the video. It gives me 100+ frames
Additionally, if you have an Nvidia card, it's worth enabling Nvidia RTX Super Resolution and Nvidia RTX HDR in the Nvidia Control Panel and setting HDR Peak Brightness in the Nvidia app settings.
Concerts look amazing. And every YouTube video is 120 fps and HDR.
I previously tested the SVP 4 PRO app, but it performs much worse than LSFG. While it's okay at 30->60 fps, it is not working at 30->120 fps.
Even though I have a very good graphics card RTX 5070ti
Lossless Scaling LSFG works in every app. Also in games.
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 16 Dec 2025, 16:47
by Chief Blur Buster
It is great stuff too!
Have you tried Vint on Steam?
Vint: Realtime Video Interpolation and CRT Emulation
For watching videos, it has more blur busting options than both SVP and LSS, if your purpose is watching videos.
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 17 Dec 2025, 05:51
by nuninho1980
But no demo, unfortunately and shamefully.
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 17 Dec 2025, 16:28
by William Sokol Erhard
Hi, I'm the developer of Vint.
Vint is fully DRM free, unlike other options. It does not require Steam to run, you can copy it on a flash drive and run it anywhere, and it doesn't require any network access. I specifically made it as open for the user as possible.
A side effect of that is that I am unable to let people try it for a day then lock them out. Any restricted demo would be literally impossible without adding DRM. I'm sorry you consider that shameful.
My recommendation is to buy it on Steam, figure out if it works well for you, and keep it if you like it or refund it if you don't. Valve is very generous with their refund policy.
Here's an example video upscaled with Vint:
https://www.youtube.com/watch?v=iZLhlFFI0f8
I also try to provide general expectations for performance with different hardware.
Vint's interpolation is demanding but it is very high quality.
To set expectations, Vint's interpolation will likely require setting a lower multiplier or resolution scale than LSFG on most hardware. That said, Vint's interpolation is of such a quality that a 2x Vint upscaled video can be much smoother than a 4x LSFG upscaled video despite the lower output framerate.
LSFG is a great tool and offers unique functionality for games but Vint is simply far higher fidelity.
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 18 Dec 2025, 20:46
by Chief Blur Buster
I recommend trying Vint! Try it. It's inexpensive.
Its interpolation engine is pretty high quality, and you can also instead choose to run the CRT electron beam simulator instead too!
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 18 Feb 2026, 12:54
by Supermodel_Evelynn
There is a huge stigma around running interpolation, artists specifically ask not to do it etc.
I have used LSFG etc I think everything looks better when interpolated but there is a moral concern because if the original artists did not intend for it to run interpolated generating fake frames and they see it as a insult, I would feel bad about doing it and is the main reason I stopped using it.
Interpolation feels like it fits into the same AI slop category but that may be due to the fact that AI slop just happens to be mostly interpolated and so when everyone sees interpolated videos now they associate it with AI slop.
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 19 Feb 2026, 03:48
by RealNC
Supermodel_Evelynn wrote: ↑18 Feb 2026, 12:54
There is a huge stigma around running interpolation, artists specifically ask not to do it etc.
And I ask artists to not cap the frame rate. Why should their opinion have more weight then mine?
Simply ignore them. I don't let others tell me what to think and what to do.
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 19 Feb 2026, 04:41
by purplemelon1
RealNC wrote: ↑19 Feb 2026, 03:48
Supermodel_Evelynn wrote: ↑18 Feb 2026, 12:54
There is a huge stigma around running interpolation, artists specifically ask not to do it etc.
And I ask artists to not cap the frame rate. Why should their opinion have more weight then mine?
Simply ignore them. I don't let others tell me what to think and what to do.
Jeez. Did a nuclear bomb go off recently somewhere.
They were talking about movies, tv shows and youtube. Which is why they used the word interpolation instead of frame gen.
When you interpolate it is very easy to see how it distorts the physics.
Even in older frame gen you can see the above when using a 30fps base. It depends.
Re: Lossless Scaling LSFG - youtube playback 120fps+ with HDR
Posted: 19 Feb 2026, 05:06
by purplemelon1
Supermodel_Evelynn wrote: ↑18 Feb 2026, 12:54
There is a huge stigma around running interpolation, artists specifically ask not to do it etc.
I have used LSFG etc I think everything looks better when interpolated but there is a moral concern because if the original artists did not intend for it to run interpolated generating fake frames and they see it as a insult, I would feel bad about doing it and is the main reason I stopped using it.
Interpolation feels like it fits into the same AI slop category but that may be due to the fact that AI slop just happens to be mostly interpolated and so when everyone sees interpolated videos now they associate it with AI slop.
You are confusing interpolation in general and llm generation interpolation.
Well without properly correcting ideas. The more common forms of interpolation are basically motion smoothening. Which can mean putting content where there wasnt suppose to.
You can watch youtube videos of 60fps minecraft interpolated to whatever fps. 240fps for you. It should be fine because there isn't much resolution/depth in that game.
24fps movies/tv to 30fps should also be fine for as little distortion as possible. Anything beyond and I would not feel comfortable
Blackframe insertion is actually the ultimate form of interpolation because it comes directly from the brain. So it causes no artifacts that would unpleasant to you...mostly