Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Bouncing DVD Logo

bouncingdvdlogo.com

Post reply on HN
Print view View original

241–250 of 293 posts

Re: Bouncing DVD Logo

#241

Post by tiborsaas »

ComputerGuru wrote: post #11

In 1999, my DVD player could do this smoothly without any hitches or glitches. In 2020, my Xeon can't render this fast enough to avoid stutters. Either code quality has gone way down or my DVD player had a faster CPU.

Because it was not coded with performance in mind. It updates the position left and top properties forcing the browser to re-render on each frame. What it should be doing is use CSS transforms so that only the GPU would be doing the updates.

Or use canvas and this won't be a matter of DOM manipulation.

Re: Bouncing DVD Logo

#242

Post by blattimwind »

PunksATawnyFill wrote: post #215
nelblu wrote: post #209

Earlier quoted context omitted.

I still buy DVDs because I like classic movies and for those movies it doesn't matter whether you watch in dvd quality or Blu-ray. Plus DVD rips are significantly smaller in size and even though I have Blu-rays for some movies I don't have a Blu-ray player on my computer to rip them. So effectively my preference is to buy DVD, unless it's a relatively modern movie (post 90s)

Not true. Movies were of course shot on film, which has way higher resolution than DVD. Even old TV shows look better than ever, as long as they were scanned from film. Look at the original Star Trek or Twilight Zone on Blu-Ray.

As far as I know lots of TV shows were not shot on film but rather on tape, which naturally limits quality to PAL/NTSC, since that's what gets recorded on tape. Similarly the archives of broadcasters are/used to be tape.

Re: Bouncing DVD Logo

#243

Post by jrockway »

billfruit wrote: post #221
leshenka wrote: post #211

Earlier quoted context omitted.

I frequently use apps with "night" theme (black background, white UI controls). You know how Android apps have "back" button on the top-left corner, right? There is also a navbar (back/home/recent buttons). In my case it's a white-ish rectangle that's almost always present on screen. By the time Samsung added an option to hide it, the damage was already done. I have them both burnt in on my screen. I first noticed th…

It does not seem to be a permanent thing though in OLEDs, after some normal usage it recovers perhaps.

I have an early OLED TV that I burned in (left it on for some reason while I was asleep, displaying YouTube). A few years later there is no longer any evidence of the burn-in; it was very apparent at first, but went away quickly with normal use.

Re: Bouncing DVD Logo

#244

Post by rkul »

Groxx wrote: post #15
_bxg1 wrote: post #2

Makes me think of this https://www.youtube.com/watch?v=QOtuX0jL85Y

I always think of https://www.youtube.com/watch?v=m8NAlDOCG6g when anything dvd-logo-related comes up

They should have edited the guy's phone screen too at 0:15 to complete this masterpiece.

Re: Bouncing DVD Logo

#245

Post by m4rtink »

airstrike wrote: post #149
zorpner wrote: post #107

Earlier quoted context omitted.

I think my favorite contextual example of this is the opening line from Neuromancer: "The sky above the port was the colour of television, tuned to a dead channel." Means something very different now.

I guess that means perfect blue skies these days haha

Or black sky with a moving "NO SIGNAL" notification box. That would actually fit to a cyberpunk novel I guess. ;-)

Re: Bouncing DVD Logo

#246

Post by jksmith »

kens wrote: post #60

As a historical note, the bouncing logo wasn't just for fun, but was important to prevent screen burn-in on CRTs. If you had a static image on a CRT for a long time, it could damage the phosphor. Sometimes you could even see the image when the screen was off! This was the original purpose of screensavers, which saved your screen from damage. Displaying a dynamic image prevented one part of the screen from being overu…

I always wanted to do a theme for AfterDark involving spinning mummies unwrapping as they floated across the screen.

Re: Bouncing DVD Logo

#247

Post by WhyNotHugo »

kens wrote: post #60

As a historical note, the bouncing logo wasn't just for fun, but was important to prevent screen burn-in on CRTs. If you had a static image on a CRT for a long time, it could damage the phosphor. Sometimes you could even see the image when the screen was off! This was the original purpose of screensavers, which saved your screen from damage. Displaying a dynamic image prevented one part of the screen from being overu…

I really wish modern vendors would stop shipping screensavers -- or at least refuse to disable them on non-CRT monitors.

The energy waste, battery degradation, and keeping the CPU/GPU awake longer are all huge wastes. Sadly, screensavers are nothing but wasteful nowadays.

Re: Bouncing DVD Logo

#249

Post by aasasd »

extrapickles wrote: post #173
aasasd wrote: post #165

Earlier quoted context omitted.

I still don't know what it is about 60 Hz that made me see the flicker plainly as a strobing light. TVs at 50 Hz—nothing (other than being generally bleh back then). Had to use 800x600 instead of 1024x768 just to have 85 Hz instead. On LCDs, I still can see faint flicker on some static backgrounds, and I think 60 Hz might play a role here too—though it seems to also depend on the brightness and Flux being on or off.…

The LCDs you see this on are 6-bit color displays using temporal dithering to pretend to be 8-bit color.

Should this be the case with a Macbook, even if a sorta old one? Because that's the machine I've seen the flicker on, for the past bunch of years.
Post reply on HN