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Show HN: The text disappears when you screenshot it

unscreenshottable.vercel.app

21–30 of 204 posts

Re: Show HN: The text disappears when you screenshot it

#21
post #17

This game disappears if you pause it: https://youtube.com/watch?v=Bg3RAI8uyVw

This is great - seems to be the same effect of hiding a shape using an animated noise pattern on a background of static noise.

They even provide the source code for the effect:

https://github.com/brantagames/noise-shader

Re: Show HN: The text disappears when you screenshot it

#24
post #20

Another idea I had with this concept is to make an LLM-proof captcha. Maybe humans can detect the characters in the 'motion' itself, which could be unique to us? - The captcha would be generated like this on a headless browser, and recorded as a video, which is then served to the user. - We can make the background also move in random directions, to prevent just detecting which pixels are changing and drawing an outli…

[deleted]

Re: Show HN: The text disappears when you screenshot it

#25
I first saw this effect in a video from Branta Games.

https://www.youtube.com/watch?v=Bg3RAI8uyVw

The effect is disrupted by introducing rendering artifacts, by watching the video in 144p or in this case by zooming out.

I'd love to know the name of this effect, so I can read more about the fMRI studies that make use of it.

What I've found so far:

Random Dot Kinematogram

Perceptual Organization from Motion (video of Flounder camouflage)

https://www.youtube.com/watch?v=2VO10eDIyiE

Re: Show HN: The text disappears when you screenshot it

#26
post #20

Another idea I had with this concept is to make an LLM-proof captcha. Maybe humans can detect the characters in the 'motion' itself, which could be unique to us? - The captcha would be generated like this on a headless browser, and recorded as a video, which is then served to the user. - We can make the background also move in random directions, to prevent just detecting which pixels are changing and drawing an outli…

As if captchas aren't painful enough for visually impaired users...

Re: Show HN: The text disappears when you screenshot it

#29

Has anyone tried a long exposure to see if the motion smears into something discernible? Obviously harder to expose a bright screen without some ND since the shutter speed is the phone's main exposure control

How do you take a “long exposure” screenshot? Isn’t every screenshot a perfect digital copy of a single frame or a full on video?

Re: Show HN: The text disappears when you screenshot it

#30

Has anyone tried a long exposure to see if the motion smears into something discernible? Obviously harder to expose a bright screen without some ND since the shutter speed is the phone's main exposure control

How do you take a “long exposure” screenshot? Isn’t every screenshot a perfect digital copy of a single frame or a full on video?

Clearly, I meant using a camera, and I'm guessing you knew that too
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