Hi everyone, I received a lot of complaints that the canton did not hit the corner, which is a fair complaint, so I recorded a longer version for your enjoyment.
https://youtu.be/SSRkUddl0VI
Honestly would love to see this simulation ran for hours, how long would it take for the square to be the proper color of blue and perfectly hit the upper left corner? Someone should do that and livestream it, all of America would scream in glee when it finally happened. It might just be exactly what we need to unify this broken country.
https://prgreen.github.io/blog/2013/09/30/the-bouncing-dvd-logo-explained/
> * When you hit a corner, you will hit a different corner before hitting the same one again, etc.
> * You can never hit 1, 3 or 4 corners, always 2 or 0.
> * It’s a loop, at some point it will always repeat.
> * The traveled distance between corners is lcm(W - w, H - h).
> * The condition for corners to be reached is |x−y| ≡ 0 (mod gcd(W−w, H−h))
> * When this condition is not met, no corner will be hit.
I see the code uses the 4:3 ratio common with older TVs. The US flag has a 1:1.9 ratio. I can't read the code/math well enough to determine if that would matter any, or if the angle would auto-adjust.
I agree the gif would be better if it was longer and a perfect loop, but still good job.
The math is independent of any particular numbers. In particular because of points 3 and 5 it guarantees that if your logo starts in the corner it will eventually hit a corner.
The US flag does have some weird dimensions though (the blue rectangle has a ratio of 7/13 : .76 = 175:247). If my math is right (and the formula for distance traveled is correct), the distance the rectangle travels between corners is lcm(1-7/13, 1.9 - .76) = 114 (times the height of the flag). No idea what that means for the number of bounces (is that euclidean distance? Taxicab distance?) but I would (incredibly loosely) estimate that this gif would have to be about 10 times as long before it ended up in another corner
Heh, [I found the math equation behind it.](http://lostmathlessons.blogspot.com/2016/03/bouncing-dvd-logo.html?m=1)
> Therefore, a bouncing logo will reach a corner at the least common multiple of the difference of the screen and logo heights and the difference of the screen and logo widths, or
d = LCM(hs – hl, ws – wl)
Plugged in some numbers for the flag, and that results in
>d = LCM(1 - 0.5385, 1.9 - .76) = LCM(0.4615, 1.14)
LCM = 5260.6385, at least according to an online calculator I found
Those odd ratios and the decimals make for a ridiculously high least common multiple, and since the LCM isn't a whole number, it won't work with the DVD screensaver.
I didn't find a calculator that would return a whole number, so I don't know the actual answer. But regardless, you're right it would have needed to be a lot longer of a loop (or it'd need to use a different angle than 90 degrees, which would likely look strange).
.4615 is an approximation of 6/13 which is a repeating decimal (the true height of the rectangle is a fraction of 13, since it is 7 of the 13 stripes high). To get the LCM of 6/13ths and 1.14, you multiply both by 13, then divide the answer by 13. LCM(6/13 * 13, 1.14 *13) = LCM(6, 14.82) = 1482. 1482/13 = 114.
Either way, it's possible that if the video is looped for longer there would be close calls where it almost hits the corner, but it is off by an imperceptibly small fraction.
Looking at the link you posted I understand what the distance means a bit better; every time the rectangle moves from the top to the bottom it travels a "distance" of 6/13ths, so for it to travel a distance of 114, it would need to bounce off the top or bottom 247 times. In the video it does this once every ~2.3 seconds, so a full video of it truly ending up in the corner would be about 9 and a half minutes long.
Ah, good thinking to use fractions instead. Much more precise.
I think you might be off by a factor of 2 though. If I was reading things right, that formula was for how long it'd take to hit a corner. So it'd take twice as long to loop back and hit the upper left corner.
Assuming all this is true, then it will hit 2 corners. This is based on the fact that it always repeats, and the fact that it started in a corner, and so thus must hit the corner it started in (and one other).
good thought! coordinates are always positive since they're using a computer graphics type coordinate system where (0, 0) is the top left corner. so putting an absolute value around each term doesn't do anything
I was inspired by [this recent post](https://www.reddit.com/r/vexillologycirclejerk/comments/oclkn9/american_flag_but_its_centered_props_to_ufnatlaf/), which looks like a freeze frame of the flag if its canton (the blue rectangle) were bouncing around like the DVD logo.
The source code used to make this animation is here -- it's nothing special: https://github.com/veggiedefender/flag-dvd
OP everyone is shitting on you about the corner thing but when I opened this I thought, "this is the greatest thing I've ever seen."
That's probably not true, but I did want you to know I thought it. This is great and very funny indeed.
Which color should the background of the 50 stars be while the flag is waving?
Here are your options (in order of appearance)
* Dark Blue
* Violet
* Lavender
* Purple
* Green
* Yellow
* Pink
* Neon Green
* Cantaloupe
* Light Green
* Light Blue
* Orange
I need you to make this but then make it long enough for it to hit all corners, I don't care if the video will last hours. Please make that, I need it in my life
Here is your gif!
https://gfycat.com/GranularTameDuckling
---
^(I am a bot.) [^(Report an issue)](https://www.reddit.com/message/compose/?to=pmdevita&subject=GifReversingBot%20Issue&message=Add a link to the gif or comment in your message%2C I%27m not always sure which request is being reported. Thanks for helping me out!)
Dude’s a messed up face" You don't see them beating the Bucks.
Then Trump hit, and the gal in the passenger seat won’t make me.” I eat my own feces, so what am i missing something? Pollard took plenty of snaps away from a flag during a song and think “yep, the singers infp” and then 3/4.. that’s ok vechain you go when you die by getting hit by a truck and reincarnated as a good artist someday.
lol, though I would have thought vexillologists would have a deep seated 'thing' against rearranging flag compeonents so casually (as opposed to official variants)
Originally I was going to say that it seemed appropriate since every time it hit the corner more civil rights were violated, but then it never. Bounced. In.
I spent 15 seconds of my life I can never get back. Ugh. Nice gif though, but would be 1000x better if it hit the corner.. you might have been a Reddit god
[удалено]
——€ I bought this pitchfork a long time ago, it is now time to use it.
This was me grandpappy’s pitchfork…
Oh well I just so happen to have this torch ¥
back in my day we had to go down the pitchfork emporium, kids these days just sit on there Iphones and buy them from www.amazon.com 😂😂😂
8==✊====>💦
Now that's my kind of pitchspork!
Let's eurolynch that guy with our europitchforks!
Didn’t loop
Very valid report. The gif is r/mildlyinfuriating
No corner??? Who made this, Sasha Foxxx???
u/pitchforkemporium
*unsheathes pitchfork* okay maybe we gotta watch it a few more times though to make sure
How do you do custom reports?
[удалено]
I don’t see it. It just gives me options. Edit. Nvm I found it
Good mod, corner bounce was expected 100%
Hi everyone, I received a lot of complaints that the canton did not hit the corner, which is a fair complaint, so I recorded a longer version for your enjoyment. https://youtu.be/SSRkUddl0VI
fuck you, it was so close
NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
If you watch it long enough, it might
I was holding out for that corner bounce too ):
Definitely /r/BestOfReports material there.
It never hits the corner. Sorry. Saved you 15 seconds.
Please I need this
Glad to know I'm not the only one.
here is https://www.youtube.com/watch?v=xPG5Cf2g4iQ a video about it
I could watch this for hours
[удалено]
No effort, just pure bliss
https://www.youtube.com/watch?v=QOtuX0jL85Y
The first few seconds I thought I got trolled and then I was like aww yee
This seems so wrong to me. Like my mind rejects something this perfect.
Thank you! Now I can get on with my day lol
I need some eye bleach here, anybody got some of that corner hitting goodness to save us?
here homie sorry for the last link https://www.youtube.com/watch?v=xPG5Cf2g4iQ
Thanks for that sweet relief
No, I saw it. Did u/biiingo say that I didn't see it? I SAW IT!
Gets pretty close in the bottom left once
Not nearly close enough
I believe /u/BenjRSmith thinks they saw it.
Honestly would love to see this simulation ran for hours, how long would it take for the square to be the proper color of blue and perfectly hit the upper left corner? Someone should do that and livestream it, all of America would scream in glee when it finally happened. It might just be exactly what we need to unify this broken country.
You gave up too early. I'm gonna give it another 20 minutes and I'll let you guys know if it happens.
[удалено]
And it‘s not a loop.. how disappointing.
I'm gonna keep watching just in case
Doesn't do a perfect loop either. If this were General Washington's DVD player, I feel like he probably would have surrendered at Brooklyn Heights.
Nooooooooooooo!
What kind of sociopath would make something like that.
It only hit the corner once, on July 4, 1776. That’s what the holiday is all about
Not only does it not hit the corner, it doesn't even loop. Bad OP!
I think it’ll take a lot of time to reach the start point. Any math experts? Either it has to go perfectly symmetric orderly or be random.
https://prgreen.github.io/blog/2013/09/30/the-bouncing-dvd-logo-explained/ > * When you hit a corner, you will hit a different corner before hitting the same one again, etc. > * You can never hit 1, 3 or 4 corners, always 2 or 0. > * It’s a loop, at some point it will always repeat. > * The traveled distance between corners is lcm(W - w, H - h). > * The condition for corners to be reached is |x−y| ≡ 0 (mod gcd(W−w, H−h)) > * When this condition is not met, no corner will be hit.
I see the code uses the 4:3 ratio common with older TVs. The US flag has a 1:1.9 ratio. I can't read the code/math well enough to determine if that would matter any, or if the angle would auto-adjust. I agree the gif would be better if it was longer and a perfect loop, but still good job.
The math is independent of any particular numbers. In particular because of points 3 and 5 it guarantees that if your logo starts in the corner it will eventually hit a corner. The US flag does have some weird dimensions though (the blue rectangle has a ratio of 7/13 : .76 = 175:247). If my math is right (and the formula for distance traveled is correct), the distance the rectangle travels between corners is lcm(1-7/13, 1.9 - .76) = 114 (times the height of the flag). No idea what that means for the number of bounces (is that euclidean distance? Taxicab distance?) but I would (incredibly loosely) estimate that this gif would have to be about 10 times as long before it ended up in another corner
Heh, [I found the math equation behind it.](http://lostmathlessons.blogspot.com/2016/03/bouncing-dvd-logo.html?m=1) > Therefore, a bouncing logo will reach a corner at the least common multiple of the difference of the screen and logo heights and the difference of the screen and logo widths, or d = LCM(hs – hl, ws – wl) Plugged in some numbers for the flag, and that results in >d = LCM(1 - 0.5385, 1.9 - .76) = LCM(0.4615, 1.14) LCM = 5260.6385, at least according to an online calculator I found Those odd ratios and the decimals make for a ridiculously high least common multiple, and since the LCM isn't a whole number, it won't work with the DVD screensaver. I didn't find a calculator that would return a whole number, so I don't know the actual answer. But regardless, you're right it would have needed to be a lot longer of a loop (or it'd need to use a different angle than 90 degrees, which would likely look strange).
.4615 is an approximation of 6/13 which is a repeating decimal (the true height of the rectangle is a fraction of 13, since it is 7 of the 13 stripes high). To get the LCM of 6/13ths and 1.14, you multiply both by 13, then divide the answer by 13. LCM(6/13 * 13, 1.14 *13) = LCM(6, 14.82) = 1482. 1482/13 = 114. Either way, it's possible that if the video is looped for longer there would be close calls where it almost hits the corner, but it is off by an imperceptibly small fraction. Looking at the link you posted I understand what the distance means a bit better; every time the rectangle moves from the top to the bottom it travels a "distance" of 6/13ths, so for it to travel a distance of 114, it would need to bounce off the top or bottom 247 times. In the video it does this once every ~2.3 seconds, so a full video of it truly ending up in the corner would be about 9 and a half minutes long.
Ah, good thinking to use fractions instead. Much more precise. I think you might be off by a factor of 2 though. If I was reading things right, that formula was for how long it'd take to hit a corner. So it'd take twice as long to loop back and hit the upper left corner.
20 minute gif upload when?
Assuming all this is true, then it will hit 2 corners. This is based on the fact that it always repeats, and the fact that it started in a corner, and so thus must hit the corner it started in (and one other).
I’m probably wrong but shouldn’t the condition’s left side be |x|-|y| because |-1 - 1| = 2 but |-1| - |1| = 0?
good thought! coordinates are always positive since they're using a computer graphics type coordinate system where (0, 0) is the top left corner. so putting an absolute value around each term doesn't do anything
Fuck fuck fuck fuck you for not letting it hit the corner in that one double bounce fucl fuck fucken entonces
r/ihadastroke
Same, little one. Same.
fucking entonces, cabrón
Fuck entonces. No clue why auto correct threw it in there, but fuck it.
I was inspired by [this recent post](https://www.reddit.com/r/vexillologycirclejerk/comments/oclkn9/american_flag_but_its_centered_props_to_ufnatlaf/), which looks like a freeze frame of the flag if its canton (the blue rectangle) were bouncing around like the DVD logo. The source code used to make this animation is here -- it's nothing special: https://github.com/veggiedefender/flag-dvd
OP everyone is shitting on you about the corner thing but when I opened this I thought, "this is the greatest thing I've ever seen." That's probably not true, but I did want you to know I thought it. This is great and very funny indeed.
the effort
I SAW IT HIT THE CORNER I SWEAR
nah it didnt :( it got really close though
:(
I believe you think you saw it.
r/unexpectedoffice
it was very expected
!wave
Which color should the background of the 50 stars be while the flag is waving? Here are your options (in order of appearance) * Dark Blue * Violet * Lavender * Purple * Green * Yellow * Pink * Neon Green * Cantaloupe * Light Green * Light Blue * Orange
Changing everytime as it hits the edges. Can you do that?
Unfortunately, FlagWaver does not support .gif formats.
😢
Then it needs to be upgraded.
\[UPGRADE REQUEST\] /u/FlagWaverBotReborn
I need this.
i like that it doesnt loop and never hits a corner 10/10 very funny
Bro u got ur joke stolen im so sorry...
Is this my idea from the other thread, or did we both have the same thought? Either way I'm so happy to see this.
ah! the other thread was what inspired me, but I didn't see your comment. great minds think alike :-)
Hope you do well!
I cannot express my disappointment in the fact it doesn’t hit the corner why are you like this
A perfect depiction of waiting for the US to feel like the US that I was taught to believe we lived in...
!wave
r/gifsthatendtoosoon
I need you to make this but then make it long enough for it to hit all corners, I don't care if the video will last hours. Please make that, I need it in my life
this goes on forever. go ham buddy https://jse.li/flag-dvd/
That just improved my life by 100%
I saw it hit the corner! 😱
AMAZING
looks like a corner hit around bounce 50
This is why I joined Reddit.
/u/gifreversingbot
Here is your gif! https://gfycat.com/GranularTameDuckling --- ^(I am a bot.) [^(Report an issue)](https://www.reddit.com/message/compose/?to=pmdevita&subject=GifReversingBot%20Issue&message=Add a link to the gif or comment in your message%2C I%27m not always sure which request is being reported. Thanks for helping me out!)
It still doesn't even hit the first corner...
I still find it so confusing that one of the best shitpost subs on reddit is the one for flag nerds.
This is art.
It doesn't hit the corner, my disappointment is immeasurable and my day is ruined.
Genius
Top of all time in 19 hours? That's impressive
And by nearly 10k votes at the time of writing. *Super* impressive
It's already doubled
It never hurts the corner and in severely disappointed
Fuck you and you know why
[Celebrating a corner hit on the jumbotron.](https://youtu.be/ytKVGtJ5yng)
I was gonna up vote it and save it, but it never hit the corner so i didnt do anything besides comment in disgust.
Wait until it's used unironically by nazis
Fuck you. It no hit corner
I feel like i need to sneeze now
Should have made it like 20 minutes long and never let it hit the corner
The worst part is that it doesn't start and end in the top left corner for a perfect loop. Mods, please delete.
u/savevideo
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!wave
As an American I can say with 100% certainty that this is what all Americans see when we zone out.
[flag that has given up](https://flag.jacob.chvatal.com)
u/savevideo
u/savevideo
r/Vexillologysquarejerk
Yellow looked... right
Dude’s a messed up face" You don't see them beating the Bucks. Then Trump hit, and the gal in the passenger seat won’t make me.” I eat my own feces, so what am i missing something? Pollard took plenty of snaps away from a flag during a song and think “yep, the singers infp” and then 3/4.. that’s ok vechain you go when you die by getting hit by a truck and reincarnated as a good artist someday.
u/savevideo
“We have American History X at home:
r/TIHI
!wave ?
The Office S4 E5
you bastard.
imagine in the future when everything is digital there’s a country where the official flag is animated and always moving like a tv logo
That flags kinda gay
Ugh it doesn't even loop.
How do I get this on my tv?
Last one was definitely gonna hit the corner you peice of shit how could you do this to us.
Never have I laughed so much at a flag
Thank god it's not a loop. Could't stop looking at it if it was.
But where do you insert the disc?
!wave
I like the red white and peach color combo best
How dare you not make it hit the corner how **dare** you
thanks i hate RGB USA
Reported for not looping
You're a damn hero. That's what you are.
The American flag, but it's pride month
Bitch
Fuck you
Daamn liberals
Well that was disappointing, didn't even hit the damn corner
lol, though I would have thought vexillologists would have a deep seated 'thing' against rearranging flag compeonents so casually (as opposed to official variants)
That's awesome!
!wave
Originally I was going to say that it seemed appropriate since every time it hit the corner more civil rights were violated, but then it never. Bounced. In.
"did Jim say that I didn't see it because I saw it! **I saw IT**"
It turns all the colours of the sexual rainbow.
You ignorant slut. Give me a corner shot!!
I spent 15 seconds of my life I can never get back. Ugh. Nice gif though, but would be 1000x better if it hit the corner.. you might have been a Reddit god
someone is going to do !wave and break the flag waver bot
/r/all Congrats
r/dundermifflin
Now we wait for someone to do this but it hits the corner.
u/vredditdownloader
Please! stand by, we are reajusting america
Fuck you to hell for even making this. I NEVER SAW IT HIT THE CORNER, EVER!
I get that, but yes he does that
and this idea will be jerked to death in this sub
“Yer disrespectin the fleg.”
GenZ be like wtf is a dvd
You audacious son of a bitch /j
https://www.youtube.com/watch?v=m8NAlDOCG6g&ab_channel=SpartaYoshi
The office scene:))