(10-21-2022 10:24 AM)mdrejhon Wrote: [ -> ]Now My Suggestions
1. I recommend adjusting the release notes to indicate there are latency benefits for certain laggy-buffering displays like certain OLED and DLPs. It also even reduces non-strobed LCD latency too with certain sync technologies, especially if you're using Scanline Sync with the tearline adjusted to near bottom of VBI so it's a "end-of-VBI Present()" replacing VSYNC ON's "beginning-of-VBI Present()".
2. I recommend renaming "Vertical Total Calculator" to "Vertical Total Calculator (QFT)" to make sure QFT is part of it. Ideally it should have said "Quick Frame Transport" because it is universal, not just for strobing, but I'd settle for just appending "(QFT)" to make sure users get that assocation. Instead of something obscure like "Vertical Total Calculator".
Searching Google, "Quick Frame Transport" is widely the dominant name for this, especially outside engineer circles, with the most Google search results, and it would be good to keep it in sync with existing Internet information.
Update!
One fantastic thing about ToastyX' new "Vertical Total Calculator (QFT)" feature is that it's a method of creating custom fixed-Hz modes for a VRR panel from a non-VRR GPU (e.g. older GPUs, Intel GPUs, etc)
For example, for a 120Hz VRR display, ToastyX can create a 96Hz fixed-Hz mode that looks exactly like a permanent 96fps framerate cap on a 120Hz FreeSync VRR signal.
The topology of both signals is actually identical, and the display will usually sync to a fixed-Hz signal created via Vertical Total Calculator on the working VRRmax.
It's almost like an EDID-based frame rate cap on a VRR signal -- except it's a fixed-Hz signal that can work from any non-VRR GPU. Quite useful for special applications, like connecting laptops and HTPCs to some VRR TVs.
Instructions.
1. Enable VRR setting on your television.
2. Make sure a picture is displayed at max Hz
3. Use ToastyX to create the non-VRR fixed-Hz mode
......Start from your working max-Hz mode.
......Select the setting "Vertical Total Calculator (QFT)"
......Modify the refresh rate to any refresh rate within the VRR range of your TV
......Save and test!
This will usually work (even on non-VRR GPUs, such as Intel), provided the television is correctly VESA Adaptive Sync (resizeable back porch, the same method as Vertical Total Calculator), allowing you to do custom fixed-Hz refresh rates on your TV where it would otherwise never support! The topology of a fixed-Hz QFT signal is surprisingly similar to a perfectly framerate-capped VRR signal. Most scalers/tcons treat this fine, which is also a major scientific explanation why QFT more often successfully works on VRR-compatible panels!
Several useful purposes: Useful for 48fps HFR videos, 50fps emulator, 100fps emulator, 57.1Hz arcade, 96fps double-strobe BFI simulating 35mm projector, nonstandard software frame rates, synchronization with virtual reality mirroring (e.g. 90fps 90Hz chromecast-style mirroring from headset to TV) etc.
Several hundred of fans (through different channels) absolutely adore the new Vertical Total Calculator. One of us achieved a 13ms latency reduction on a non-strobed display. Thank you!
(11-18-2022 11:07 PM)ToastyX Wrote: [ -> ] (11-17-2022 03:06 PM)Zodios Wrote: [ -> ]The big problem is that my eyes are highly sensitive to displays with 60hz (I have a headache and some dizziness from 60hz).
How can 60 Hz on an LCD panel possibly cause headaches and dizziness? If you want a higher refresh rate laptop, get a higher refresh rate laptop.
Zodios is correct.
Many of us have the problem, which is part of why Blur Busters exists, from the motion blur headaches of sample-and-hold 60Hz.
Many of us have motion blur headaches from the motion blur of 60Hz.
It's not all about flicker, but also from motion blur and/or sensitivity to 60Hz stutter (on OLED, 60Hz can still "stutter", since stutter is directly tied to flicker fusion threshold.
- Sensitivity to display motion blur; and/or
- Sensitivity to stutter of 60Hz
Remember, stutter and persistence blur is exactly the same thing (sample and hold effect) -- see variable speed animation demo
http://www.testufo.com/eyetracking#speed=-1 and stare the 2nd UFO for at least 30 seconds.
View the 2nd UFO of this TestUFO animation for 30 seconds on both 120Hz+ LCD and 120Hz+ OLED
- On LCD, the stutter blends to blur at about 50fps
- On OLED, the stutter blends to blur at about 75fps.
Scientifically it is the same principle as a vibrating music string.
Slow music string = visibly vibrates
Fast music string = blends to blur
Same for edge-flicker of low frame rate stutter stutter.
Slow sample and hold = visible stutter (edge flicker)
Fast sample and hold = blends to blur (edge blur)
Slow GtG pixel response will soften stutter, adjusting the framerate threshold where stutter blends to blur. Once GtG is zeroed out, your regular-stutter-blends-to-blur threshold is roughly equal to your flicker fusion threshold.
Regardless of whether your headache/nausea/eyestrain/motionsickness (or all) is caused by stutter or blur, 60Hz is a major ergonomic problem for SOME of us.
/25 Citations In Research Papers
/Namesake Toot Toot
/Chief
BLUR BUSTER Exits The Room