Search found 57 matches

by silikone
19 Sep 2017, 02:51
Forum: General — Displays, Graphics & More
Topic: Do all TN G-sync monitors have banding issues? Help me pick
Replies: 65
Views: 55744

Re: Do all TN G-sync monitors have banding issues? Help me p

The banding at dark levels can be attributed to the sRGB transfer function. It approximates a 2.2 gamma curve, but RGB levels below 11 are linear, thus they leave black very quickly. Not all monitors follow this function. AdobeRGB is 2.2 throughout, and this makes the very dark levels indistinguisha...
by silikone
25 Aug 2017, 14:13
Forum: General — Displays, Graphics & More
Topic: New TestUFO "Exact" Refresh Rate Test! (e.g. "119.99716 Hz")
Replies: 4
Views: 13404

Re: New TestUFO "Exact" Refresh Rate Test! (e.g. "119.99716

This is exactly what I needed! These variable refresh rates have been an enigma to me for long, and this will surely help me get a better understanding of the underlying mechanics. I am especially intrigued by toggling between 59hz and 60hz, which as expected, yield ~59.94 FPS and ~60 FPS respective...
by silikone
21 Aug 2017, 04:02
Forum: Test UFO Motion Tests
Topic: [TestUFO Aliasing Visibility] Anti-aliasing gamma correction
Replies: 1
Views: 3503

[TestUFO Aliasing Visibility] Anti-aliasing gamma correction

One thing I have noticed is that a visual pattern emerges from the line when anti-aliased. I suspect that this is due to a lack of gamma correction. Having the option to toggle this would be useful.
by silikone
31 Dec 2016, 21:49
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: What exactly causes V-sync to introduce input lag?
Replies: 27
Views: 32500

Re: What exactly causes V-sync to introduce input lag?

The pre-render buffers are filled with data that depends on old input. Although you can set the buffer size to 1; the setting is called "pre-rendered frames" on Nvidia and "flip queue size" on AMD. It's not uncommon to see something like 100ms total input lag in some cases because of this. Ah, I wa...
by silikone
31 Dec 2016, 20:11
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: What exactly causes V-sync to introduce input lag?
Replies: 27
Views: 32500

Re: What exactly causes V-sync to introduce input lag?

When the game submits the frame for output, it keeps working on new frames. It doesn't actually wait for the vblank itself. The OS/driver is doing the waiting for vblank, but the game doesn't actually care. The game can submit another frame later on, even though the previous one is still waiting fo...
by silikone
26 Dec 2016, 00:00
Forum: Software Developers / Low-Lag Code / Game Programming
Topic: What exactly causes V-sync to introduce input lag?
Replies: 27
Views: 32500

What exactly causes V-sync to introduce input lag?

NOTE: Some useful low-lag VSYNC ON code programming techniques is in Page 3 of this thread. I did a test on a G-sync monitor by recording the screen at high speed while moving the cursor around. I can conclude that in my case, G-sync right below the refresh rate has a 3D application that uses the W...
by silikone
21 Feb 2016, 20:20
Forum: General — Displays, Graphics & More
Topic: Motion test videos
Replies: 2
Views: 2206

Re: Motion test videos

I would if I could, but I honestly have no idea how to make a perfect rendition. All I could do is capture, but that is a messy process.
by silikone
20 Feb 2016, 14:34
Forum: General — Displays, Graphics & More
Topic: Motion test videos
Replies: 2
Views: 2206

Motion test videos

Are there any good motion tests in video format so one can view the exact same patterns on multiple displays and playback devices? The TestUFO tests are already very good, but they are of course limited to HTML. I would love to have them in a collection of MP4s.
by silikone
19 Feb 2016, 14:31
Forum: BENQ Zowie Tweaking — Strobe Utility / Blur Reduction / DyAc
Topic: Display timings
Replies: 3
Views: 3384

Re: Display timings

I only know one good software to see EDID data: http://www.entechtaiwan.com/util/moninfo.shtm Try it. Looking at this, it reports my current mode as being 120.4Hz, but I can't make sense of why this is. If I multiply the pixel clock and blanking resolution as reported by the program, I get a freque...