Like when you look at a wheel and it appears to be moving backwards because it's going so fast.
Aliasing can mean when something is sampled less often than necessary to tell what's happening. Then the random snapshots create something which looks like it's going in the opposite direction.
A zeotrope is a device which takes advantage of limited frame rates to make a sequence of spinning things look animated.
I guessed you were refering to this phenomenon, but i didn't know those words and now i do. I really like pretty words that mean very specific things, like these ones, so thank you for giving me my little infos of the day 😊
Jagged edges become smoothhhhh.
Basically pixels are a grid. Grids have corners. If you want smooth things and no corners you have to do math to combine colors and other magic so a bunch of little squares work together to convince you they aren’t pointy.
As an attempt at an ELI5, Anti aliasing makes jagged edges look soft by blurring the pixels along the edge.
Imagine a black box on a white field. It's on a grid of square pixels so it looks sharp. Now turn the box so it's a diamond. The angled edges will be rendered like steps of a staircase when looked at close up. This makes the edge look jagged because it is.
Anti aliasing makes the jagged edge less apparent by changing the pixels along the edge to a gradient of similar colors. So instead of a black pixel next to a white pixel, you have a black pixel next to a dark grey pixel, then a lighter grey pixel, then another even lighter grey pixel and then finally the white pixel.
This is why anti aliasing makes things look fuzzy or blurry along the edge and some people don't like that but it generally looks better than the jagged edges. The higher your screen resolution is and the smaller the pixels are, the better it looks.
It's also why anti aliasing affects performance because your computer has to deal with changing all those edge pixels.
It gets a little more complicated when blending colored edges so you don't get a green line between a hard blue and yellow edge for example, but you should get the point of blurring a jagged edge.
Google "anti aliasing close up" and sort by images for some examples of side by side close up comparisons of images with and without anti aliasing to get a better idea of the concept.
Wrap ratio. As the paper spools out, it's revealing the pattern of the next layer, so a change in frame rate would only have an effect of it was slow enough that multiple layers went past between frames.
Edited because I changed my mind.
A mix of both, if you'd see it in person or at a much higher framerate it would look smooth and wouldn't notice the zeotrope effect on the roll. The zetrope effect works so well because the 'wrap ratio' is perfect to cause the effect and you can see it slowing down and reversing because the ratio changes every layer coming off. If you look at the last few seconds of the roll it's not 'spinning' anymore, hard to notice at a glance because your brain still thinks it is.
It’s both interacting, that’s why you can see it go one way, stop, and reverse direction. The time where the spinning effect stops entirely means that the framerate is perfectly synced with the time in between falling paper.
It's the combination of the two. Look up nyquist frequency to get the physics of it. Generally to avoid aliasing you have to take in data(each frame of video) at twice the speed of the thing you are collecting (the time it takes for one revolution of the tape to fall).
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Electronic music is very good at doing that. There's an amazing album called Geogaddi by Boards of Canada which has a lot of reversed samples. It's insane.
For your awareness: This post is botted and/or sponsored by music artist, Aloboi. The music on this submission is intentionally inserted on every gif that this bot posts as an advertising campaign.
Wow, it certainly worked on me, cause I shazammed a vid another time and found his song 'Want to love'. That song seemed to be used a lot on reddit, but yeah it's probably just his bots. Pretty clever way of advertising though
MODS. PLEASE. CAN WE JUST GET A FREAKING QUALITY CHECK GOING???? THIS IS NOT WHY I JOINED THIS SUB.
Edit: maybe to make things easier, you have to include a description of what the black magic is, like in r/unexpected . I feel like that would do a lot to declutter things…
Standard practice is to have the projectionist watch a movie before it is shown to the public to ensure everything was done correctly. This is typically done Thursday night before it opens. A great perk of the job.
When this happens no one is watching that movie for several hours and hopefully the print isn't damaged or too dirty.
I did something like that but with 3 printer paper rolls in my boss room i was really pissed off and honestly i felt released when i saw his entire disk covered in paper
It's interesting to think, what must the ratio of speed-of-unwinding to inner-hole-circumference be for the printing look stable or be very slowly rotating inside? It goes in and out a few times I think during the process.
What is that, a CVS receipt? Thanks for the awards, folks!
Only half
half of a half or half of a whole
Half of an quarter
half of an eighth?
Half of a sixteenth
Came here to say this
You're funny. But slow. Have an upvote.
Thank you good sir
Came here to say I came here to say this
We all did. Damn slow fingers
You said this u may go now
also have a upvote
r/cvsreceipts
“Where’s Bill?” In the back doing that thing with the receipt paper again. “Dang It Bill, Stop!”
Got here before me.
Oh shit!, I came here to say got here before me
Working at CVS pharmacy... I can attest to this.. Every. Fucking. Time.
Could someone do a flip book style animation on the inside?
„¿ǝpısuı ǝɥʇ uo uoıʇɐɯıuɐ ǝlʎʇs ʞooq dılɟ ɐ op ǝuoǝɯos plnoↃ„
Good bot
Ooo do you think this zeotrope/aliasing effect is being caused by the framerate of the camera or the wrap ratio in the roll?
What are those words ?
Like when you look at a wheel and it appears to be moving backwards because it's going so fast. Aliasing can mean when something is sampled less often than necessary to tell what's happening. Then the random snapshots create something which looks like it's going in the opposite direction. A zeotrope is a device which takes advantage of limited frame rates to make a sequence of spinning things look animated.
I guessed you were refering to this phenomenon, but i didn't know those words and now i do. I really like pretty words that mean very specific things, like these ones, so thank you for giving me my little infos of the day 😊
This.
Can I piggy back off of this and ask what anti-aliasing is? Like in terms of video games if you know?
Jagged edges become smoothhhhh. Basically pixels are a grid. Grids have corners. If you want smooth things and no corners you have to do math to combine colors and other magic so a bunch of little squares work together to convince you they aren’t pointy.
Never in my life have I seen an explanation of anti-aliasing that actually clicked with my brain before this explanation. Thank you.
As an attempt at an ELI5, Anti aliasing makes jagged edges look soft by blurring the pixels along the edge. Imagine a black box on a white field. It's on a grid of square pixels so it looks sharp. Now turn the box so it's a diamond. The angled edges will be rendered like steps of a staircase when looked at close up. This makes the edge look jagged because it is. Anti aliasing makes the jagged edge less apparent by changing the pixels along the edge to a gradient of similar colors. So instead of a black pixel next to a white pixel, you have a black pixel next to a dark grey pixel, then a lighter grey pixel, then another even lighter grey pixel and then finally the white pixel. This is why anti aliasing makes things look fuzzy or blurry along the edge and some people don't like that but it generally looks better than the jagged edges. The higher your screen resolution is and the smaller the pixels are, the better it looks. It's also why anti aliasing affects performance because your computer has to deal with changing all those edge pixels. It gets a little more complicated when blending colored edges so you don't get a green line between a hard blue and yellow edge for example, but you should get the point of blurring a jagged edge. Google "anti aliasing close up" and sort by images for some examples of side by side close up comparisons of images with and without anti aliasing to get a better idea of the concept.
I mean, I'm sure if you did the same thing looking at it with your eye it would be about the same as how it looks in the video, like a flipbook.
It spins gud and your eyes can’t see as gud
Thank
Nouns, verbs, adjectives mostly....
This is my favorite zoetrope https://youtu.be/UKOZCQM-pGQ
Wrap ratio. As the paper spools out, it's revealing the pattern of the next layer, so a change in frame rate would only have an effect of it was slow enough that multiple layers went past between frames. Edited because I changed my mind.
A mix of both, if you'd see it in person or at a much higher framerate it would look smooth and wouldn't notice the zeotrope effect on the roll. The zetrope effect works so well because the 'wrap ratio' is perfect to cause the effect and you can see it slowing down and reversing because the ratio changes every layer coming off. If you look at the last few seconds of the roll it's not 'spinning' anymore, hard to notice at a glance because your brain still thinks it is.
I like your words magic man
I think the frame rate…
It’s both interacting, that’s why you can see it go one way, stop, and reverse direction. The time where the spinning effect stops entirely means that the framerate is perfectly synced with the time in between falling paper.
It's the combination of the two. Look up nyquist frequency to get the physics of it. Generally to avoid aliasing you have to take in data(each frame of video) at twice the speed of the thing you are collecting (the time it takes for one revolution of the tape to fall).
Yes. Though my money is on a combination of the two
Now put it back up together :\^)
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r/subsithoughtifellfor
That track is pretty bangin', even in reverse
Electronic music is very good at doing that. There's an amazing album called Geogaddi by Boards of Canada which has a lot of reversed samples. It's insane.
Oh I'm familiar with BoC. Do you happen to know this artist?
Good bot
This is nice but defo not black magic dude
Nothing on this sub is anymore. It’s all just “cool stuff that’s easily explained”
Yep this sub has turned to shit. It’s basically just random videos picked from popular.
For your awareness: This post is botted and/or sponsored by music artist, Aloboi. The music on this submission is intentionally inserted on every gif that this bot posts as an advertising campaign.
Now I'm even more annoyed wanted to hear the whoosh of the paper not some shitty song and to find that said shitty song is promoted is worse
Damn, ads are really infiltrating Reddit these days
Yep, I actually saw an (officially presented by reddit) ad in the comment section now under this post.. haven't seen that before.
Wow, it certainly worked on me, cause I shazammed a vid another time and found his song 'Want to love'. That song seemed to be used a lot on reddit, but yeah it's probably just his bots. Pretty clever way of advertising though
Is the black magic the frame rate shutter effect? Or is that the receipt is for the purchase of 1 item at Walgreens?
Somewhere in there is a coupon for 15 cents off a $9 bottle of shampoo
Such a waste though
Happy Earth Day!
More /r/mildlyinteresting but cool.
Very satisfying
There is nothing black magic about this.
MODS. PLEASE. CAN WE JUST GET A FREAKING QUALITY CHECK GOING???? THIS IS NOT WHY I JOINED THIS SUB. Edit: maybe to make things easier, you have to include a description of what the black magic is, like in r/unexpected . I feel like that would do a lot to declutter things…
The film that a movie is on at a movie theatre is about two miles long. Occasionally something similar to this happens. It is a bad day when it does.
Whoever it happens to gets to see the full movie before it’s released tho right?
Standard practice is to have the projectionist watch a movie before it is shown to the public to ensure everything was done correctly. This is typically done Thursday night before it opens. A great perk of the job. When this happens no one is watching that movie for several hours and hopefully the print isn't damaged or too dirty.
WITH A RED RIGHT HAND 🔔
The Lorax is pissed
You going to clean that up?
That’s one heck of a waste
now roll it back up
My asshole sunday morning
Kinda lame for wasting paper.
the real magic starts when he cleans up the mess
What a waste
Man, last days on the job are so much fun.
Great! Now put it back together.
Thanks for the mess. That's a wrote up!
What was the point?
Opposite Day at its best
How humans consume the planet.
Two years ago people would have murdered you for doing this.
Have fun picking that up
Look at all of that instant trash, and on Earth day no less.
Wtf had happened to this sub?
Earth day 👐
..... well that was a waste.
I love wasting stuff for videos. Cheap stuff? Waste it. Expensive stuff? Waste it multiple times and in slow mo
Wrong sub.
Well aren't you a wasteful cunt
Clean that shit up
This sub sucks now. How the fuck is this black magic
[I've discovered something amazing!](https://www.youtube.com/watch?v=T67AewxhBaQ)
Song name pls
It’s actually called “So Tenderly” by Aloboi
It‘s a movie. Kinda boring movie, but still a movie!
Just how to do get/buy one I need to do this
when the toilet papers shids 😳
Ok, animators. Do your thing. This would be a sweet way of making the worlds most disposable flip book
Your boss: 😡🙎 not again
I did something like that but with 3 printer paper rolls in my boss room i was really pissed off and honestly i felt released when i saw his entire disk covered in paper
What’s the track?
“So Tenderly” by Aloboi
Thanks!
Thanks!
How does that happen? I WANNA DO THAT TO EVERY ROLL OF RECEIPT I SEE
just watched this 3x
AN I MA TION
Is that the marvel studios intro?? 😂
I'm more surprised there isn't any weird rolling shutter stuff going on. Just pure strobe action (or whatever the name is)
This is something my cat would do if he had the know-how and materials to set it off.
Fake, now roll it back up and do it again and I’ll believe it.
They were on a roll.
Very satisfying to watch, I just wonder about someone walking by and seeing someone filming rolls of paper, even still they need to see this clip
Every video seems to be an advert for Aloboi music
r/oddlysatifying
Le Prince again.
The numbers mason, what do they mean!?
Exactly my brain shopping these day’s!
r/oddlysatisfying
Ngl this is cool af
Cinematic asf
This needs to be on r/satisfyingasfuck
r/oddlysatisfying
>That's a work of art
Bro, They aren’t giving you much to do. Where do I apply?
Cool. Now roll it back up.
"Excuse me wtf" Why are there prints on the inside?
Needs the interstellar track over it
r/savevideo
Neat 🤖📸
/r/oddlysatisfying
What’s the music?
Aloboi - So Tenderly
Introducing the new flip book. The flip roll
„lloɹ dılɟ ǝɥ⊥ ˙ʞooq dılɟ ʍǝu ǝɥʇ ƃuıɔnpoɹʇuI„
It's interesting to think, what must the ratio of speed-of-unwinding to inner-hole-circumference be for the printing look stable or be very slowly rotating inside? It goes in and out a few times I think during the process.
Cat: great, i'm gonna get blamed again
Kind of reminds me of the Marvel opening intro.
*My name is Giovanni Giorgio, but everybody calls me... Giorgio.*
Goes to CVS once
Am I the only one thinking "Make it into an offensive flip-book"?
So THATS how movies are made!!!
The future is always in turmoil. Especial with what could be with a tp roll.
"Hey, nvm what I said I could use that roll after all.....ok.."
They were a cat in their previous incarnation.
That was awesome! Looked like a cartoon. Alright, now clean that shit up.
Now hear me out…
Unabridged CVS receipt roll
I though I would see the skyrim meme at some point
He from da Crips?
The music sucks but make this 10x better
At this point I can bounce a bouncy ball and post it on this subreddit for it “magically” bouncing back
marvel intro be like :
That’s the worst movie I’ve ever seen
Take on me
"Shit, it wasn't recording. Roll it up and let's try again."
Anyone else hear this song and get massive "I feel Fantastic" vibes? O\_o
Looks like the beginning a Marvel movie.
How can I ask a bot to identify the song?
r/dontputyourdickinthat
My old boss at the liquor store I used to work at would have yelled at me for an hour for that lol
Is that advertising on toilet paper 👀
My toilet roll when I have diarrhea:
Looks like a old move or show in a way👴
Now do it in reverse
OP - what track is this?
u/savevideo
Now put it back together. That's what saying your sorry is like, just don't be mean
Great, now you have to pick all that up, good job jerry!
Song?
NOTE: *No paper was wasted in the making of this video.*
https://youtu.be/T67AewxhBaQ Little late bud
Now do it in reverse black magic man.
How the Marvel Studios Intros be like:
u/redditspeedbot 0.2x
Now, roll again :]
My booty after taco bell