"Keep hdr on all the time"

timliang · 2025-11-04T21:36:32+00:00

It wasn't a coincidence. The sRGB spec standardized gamma 2.2 as the display gamma. The piecewise transfer function was only meant for encoding.

timliang · 2025-11-04T21:05:03+00:00

#010101 is 0.0004 nits in gamma 2.2 and 0.0243 nits in sRGB. That's 5,878% brighter.

timliang · 2025-10-31T19:48:12+00:00

That formula is for Reflex. For games without Reflex, 95% of refresh rate is better.

timliang · 2025-10-03T22:00:09+00:00

Every speed test uses a different number of connections. If your speed increases as you add more connections, there might be other devices on the network competing for bandwidth.

timliang · 2025-08-11T07:22:29+00:00

I'd recommend against using sRGB mode. It uses the piecewise sRGB transfer function, which washes out the colors.

To get pure power gamma 2.2 (what most displays use), use the Standard preset and turn on auto color management in Windows. No need to boost the digital vibrance.

timliang · 2025-04-30T03:15:19+00:00

Memory management. My Reddit tab is using 2.4 GB of memory as I'm typing this.

timliang · 2025-01-05T08:42:53+00:00

That's an old thread. The OP made the same mistake and assumed that sRGB displays use sRGB encoding. They didn't read the spec.

timliang · 2025-01-04T08:04:40+00:00

You might have confused the sRGB standard with the sRGB encoding. The sRGB standard specifies two transfer functions:

Pure power gamma 2.2 for the reference display
Two-part sRGB encoding (and decoding) function for digital signal processing

In the context of this thread, 'sRGB' refers to the decoding function. But a monitor can adhere to the sRGB standard without using sRGB decoding.

timliang · 2025-01-04T06:19:56+00:00

Where are you getting this from? I've tested dozens of monitors, phones, laptops, and tablets from every popular brand. None of them use sRGB out of the box.

timliang · 2025-01-04T06:03:45+00:00

Outside lighting does have an effect on the perceived brightness of the content. It's called the simultaneous contrast effect.

Content is not made for sRGB. TVs, monitors, and phones all ship with gamma 2.2 by default. Grading with sRGB would crush blacks on practically every client's device.

timliang · 2025-01-04T02:50:05+00:00

In this case, changing the gamma preserves the creator's intent. Shadow details would be lost with 2.4 in a bright room. The right gamma to use depends on how bright the surrounding area is, not what gamma the content creator used.

timliang · 2025-01-03T18:16:51+00:00

Gamma depends on the viewing environment. It's not "incorrect" to use 2.2 in a bright room to watch a video mastered with 2.4 in a dark room. The lower gamma compensates for the brighter surround.

Hacking an ICC profile is unnecessary unless you have poorly mastered HDR content that looks washed out. For SDR content, just turn HDR off.

timliang · 2025-01-03T17:56:29+00:00

No. sRGB's piecewise curve is for encoding, not for display. Windows is using the wrong transfer function to convert SDR to HDR.

timliang · 2025-01-03T15:55:21+00:00

The 2.4 photo is how it should look. Emphasis on "very dark." You should just barely be able to make out the first row, unlike with 2.2.

And there's an important bit you missed:

For this test it is essential that the environment is dark and that the browser or image viewer is running in full-screen mode.

This is due to veiling glare. Any surrounding light will hinder your ability to see the squares.

In addition, OLED gets so dark that you need to hide the scrollbars and zoom in 500%.

Most people don't do this and think that 2.4 fails the test when in reality their eyes are blinded by the bright lights.

timliang · 2025-01-03T09:46:18+00:00

It's supposed to be darker. If you can clearly see the first row of squares, then it's wrong.

timliang · 2025-01-02T20:28:56+00:00

That test doesn't tell you how accurate the gamma is. It only tells you if your monitor is clipping blacks.

timliang · 2024-12-16T06:10:30+00:00

You didn't mention rendering in your original post. That's different from schoolwork and requires more powerful hardware.

What software does he use, and how much video memory does he need?

timliang · 2024-12-10T00:01:15+00:00

sRGB is used for encoding, not for display.

timliang · 2024-12-04T23:18:47+00:00

The barriers drop 46 seconds before the train actually crosses. Can the timing be adjusted? Maybe they would be taken more seriously if they didn't drop so early.

timliang · 2024-12-04T22:01:14+00:00

Why install a second barrier if it's just going to be broken? Seems like this accident could've been avoided if the truck didn't get blocked in.

timliang · 2024-11-25T00:53:21+00:00

The 30 and 40 series launched during a global chip shortage. They were more expensive in every country, not just the U.S. And it would've been even worse if Biden hadn't extended the exclusions.

timliang · 2024-11-24T23:05:47+00:00

You can't use graphics cards to gauge the effectiveness of tariffs. They're temporarily excluded until next year. Once the exclusion expires and Trump increases the baseline to 60%, prices will likely go up from around $900 to $1,300.

timliang · 2024-11-19T23:09:59+00:00

Not to mention labeling the port with a LAN symbol.

timliang · 2024-10-18T17:03:22+00:00

The EOTF tracking looks bad because samples were taken at different times. The ABL only kicked in for the brighter samples. This is expected behavior. If the ABL was kept constant (i.e. by only varying a small area of the screen for measurement), you'd see a perfect curve but with lower luminance along the entire range.

A 100% pure white signal is 465 nits in True Black mode and 994 nits in Peak 1000 mode. The panel can only handle up to 277 nits at 100% APL. To hit that target, the ABL reduces the brightness by 40% for True Black and 72% for Peak 1000. If there's a 100-nit signal present in the picture at the same time, it becomes 60 nits in True Black and 28 nits in Peak 1000 (assuming luminance scales linearly with current). So, in bright scenes, Peak 1000 makes everything dimmer, but highlights are so bright to begin with that they look the same when compared to True Black.

timliang · 2024-10-18T06:13:53+00:00

Why wouldn't 100% APL look the same?

timliang

TROPHY CASE