Scanline sync is AMAZING !

Ask about motion blur reduction in gaming monitors. Includes ULMB (Ultra Low Motion Blur), NVIDIA LightBoost, ASUS ELMB, BenQ/Zowie DyAc, Turbo240, ToastyX Strobelight, etc.
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RealNC
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Re: Scanline sync is AMAZING !

Post by RealNC » 01 Feb 2019, 13:21

pwn wrote:The author of the topic indicated that he does not have restrictions on FPS, I do not understand something?
Scanline-sync will cap your FPS to your refresh rate, just like vsync, but without the input lag of vsync. That's what it does. If you're running the monitor at 120Hz, you will get 120FPS.
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Re: Scanline sync is AMAZING !

Post by pwn » 01 Feb 2019, 13:23

RealNC wrote:
pwn wrote:The author of the topic indicated that he does not have restrictions on FPS, I do not understand something?
Scanline-sync will cap your FPS to your refresh rate, just like vsync, but without the input lag of vsync. That's what it does. If you're running the monitor at 120Hz, you will get 120FPS.
Thanks for the answer!
Now it is clear, the author of the topic misled me.

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Chief Blur Buster
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Re: Scanline sync is AMAZING !

Post by Chief Blur Buster » 01 Feb 2019, 16:56

pwn wrote:Thanks for the answer!
Now it is clear, the author of the topic misled me.
No, the author is correct.

When the author said "no limit on fps ingame", it means the author avoided the "fps_max" setting.

The game's framerate limit is disabled.
So the framerate-limiting is done by RTSS instead of the framerate-limiting by the game fps_max setting.

You just misunderstood the author.
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pwn
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Re: Scanline sync is AMAZING !

Post by pwn » 01 Feb 2019, 17:37

Chief Blur Buster wrote:
pwn wrote:Thanks for the answer!
Now it is clear, the author of the topic misled me.
No, the author is correct.

When the author said "no limit on fps ingame", it means the author avoided the "fps_max" setting.

The game's framerate limit is disabled.
So the framerate-limiting is done by RTSS instead of the framerate-limiting by the game fps_max setting.

You just misunderstood the author.

Thank you for the clarification

BlurZapper
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Re: Scanline sync is AMAZING !

Post by BlurZapper » 10 Mar 2019, 13:41

Hello just wanted to make some comments about this using ULMB with 100 and 120hz, at 1440p. It works pretty well, I just set the scanline to 1400-1440 (doesn't matter) and I see zero tearing with ULMB on, vsync off. I guess this is the best method to do now instead of the old RTSS -.01 framerate limit?

Its getting a little confusing these days I need to list the two old methods I have:
1. ULMB (100hz/120hz) Vsync on, RTSS -.01 framerate limit. This takes away the vsync lag (worked great)
2. ULMB (100hz/120hz) Vsync off, RTSS - .01 framerate limit. This used to keep a horizontal tear which I could never keep constant, and have slightly faster mouse response from screen.

Now with this new option all thanks to BlurBuster I can replace both above options (at least from my understanding) with:
1. ULMB Vsync off, scanline 1440. No stuttering (as long as GPU is not choked), no tearing, with the benefit of quick frame draws.

So I don't need to worry about bumping the frame limit below refresh anymore since vsync is off. Any added comments would be great, so I can understand this better.

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Re: Scanline sync is AMAZING !

Post by RealNC » 10 Mar 2019, 14:46

BlurZapper wrote:Hello just wanted to make some comments about this using ULMB with 100 and 120hz, at 1440p. It works pretty well, I just set the scanline to 1400-1440 (doesn't matter) and I see zero tearing with ULMB on, vsync off. I guess this is the best method to do now instead of the old RTSS -.01 framerate limit?
Yes. You are effectively getting input lag that equals vsync off (or g-sync) at that specific frame rate cap.
Its getting a little confusing these days I need to list the two old methods I have:
1. ULMB (100hz/120hz) Vsync on, RTSS -.01 framerate limit. This takes away the vsync lag (worked great)
Not entirely. It eliminates vsync backpressure latency, but some of the "core" vsync lag is still there (about 1 frame of latency.) ssync with vsync off on the other hand completely eliminates vsync lag altogether; even that last 1 frame.
2. ULMB (100hz/120hz) Vsync off, RTSS - .01 framerate limit. This used to keep a horizontal tear which I could never keep constant, and have slightly faster mouse response from screen.
ssync is the same as that, except it can control the tearline position without any latency cost.
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BlurZapper
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Re: Scanline sync is AMAZING !

Post by BlurZapper » 10 Mar 2019, 15:43

Awesome, thanks for describing both the old and new methods. You and Blurbuster always give the best, quickest advice!

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