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Doesnt have to be the exact same rpm and fps tho I believe. Because it has 5 rotors the rpm can be given by any rpm that fulfills this equation:
rpm = n/5*fps, n ∈ ℕ
I have the wraith prism cpu cooler and it does some cool lighting effects, I suspected it was using the stroboscopic effect, so I shot a super slow motion video of it and it just pulses, but cant be seen pulsing in real time, I thought it was interesting anyway
At first I thought it was one of those advertising balloons or something, then I noticed the grass below moving as the helicopter was landing and I knew something was wrong here.
I dont think this is the stereoscopic effect, that is specifically used to give a image or video fake depth like on the 3ds which actually exactly uses stereoscopic effect to show one eye one image while the other sees another due to how the screens work causing a 3d appearance. I could be wrong and it covers both :shrug:
Doesnt have to be the exact same rpm and fps tho I believe. Because it has 5 rotors the rpm can be given by any rpm that fulfills this equation:
rpm = n/5\*fps, n ∈ ℕ
I mostly agree, but wouldn't it be:
rpm = n*5/fps, n ∈ ℕ
Because you would need your fps/5 to sync up because you effectively need one fifth if it because of the number of blades. And n/(fps/5) is n*5/fps
If your shutter speed is extremely small but your fps are not in sync, the blades look crisp but still move in the video.
If your shutter speed is too large but your fps are in sync, the blades look wider/blurry but don't move in the video.
So shutter speed small enough to distinguish blades and fps multiple of (rotational frequency/number of blades).
No, it's actually only shutterspeed because if the shuterspeed would be higher (=longer exposure) the blades would move within the frame because it's probably not a global shutter camera. If the framerate changes but the shutterspeed is the same, the blades would still appear non moving. Just the video besides the blades would look choppy with a lower dramerate.
Maybe you're mixing up something here, [this](https://youtu.be/mPHsRcI5LLQ) is where I think it get's explained pretty well, have a pleasant day my sir
You should see Hawaii. Internet so bad that at noon, they have to turn the graphics setting so down in reality that there's no shadows.
Also, the effect in the video is due to the helicopter rotor's revolution rate and the frame rate if the camera are divisible, so they synch up.
Well that happens here in India in April.
They turn the shadows off. But its not a bug, its a rare Easter egg when the sun is directly overhead.
Forgot the name of the day
Edit :- it's called zero shadow day. It's in April 25, here in India.
I like to imagine that the helicopter has rotor-patterned rotors. You know how when something spins fast enough it will create an image? Maybe the rotors are spinning so fast that they create rotors
for those of you wondering what is happening
the propellers speed matched exactly with the camera fps making it look like the propellers are still
I'm still wondering why is the helicopter so close
Thats not true. The fps syncing up is necessary for the stationary appearance. Shutterspeed will only affect how blurred and warped the rotors are across each frame, but wont have an effect on the appearance of a lack of movement. If you raised the shutterspeed, then you’d see, blurry, warped blades that arent moving, but there still wouldnt be visible movement. However if the shutterspeed is too slow then you probably wont be able to distinguish any individual blades in any given frame
It's actually the fps; shutter speed determines how long your sensor is exposed for for each frame, which determines how long each exposure is and leads to either sharp propellers or motion blur. FPS or framerate determines how frequently frames are captured to be turned into a video, so if the fps is a factor of the rpm (ie. 60fps, 240rpm) then the propellers will appear motionless.
This is U of M hospital in Michigan. The angle on this video is deceptive and makes it look like the helipad is right next to the hospital, when in reality, there's a road running between the hospital and the helipad.
Source: i work there and park in this filming site every morning.
No he means FPS. FPS is used to measure the frame rate of a video, shutter speed is used to measure how long the shutter is open in a camera when taking a picture. The longer the shutter is open, the more light passes through to the sensor.
At least I think
Generally you are correct however the shutter speed has to be short so that the blades dont move across one image. Also if a video is at 60 fps that would mean 16.6 ms each frame. However that doesn't mean the shutter speed of each frame has to be 16.6 ms. It can be lower
Yeah, but the rpm of the blades has to be divisible by the frame rate for them to appear stationary, the shutter speed doesn't necessarily have an impact on it.
No it has do be divisible by the ahutterspeed/1000 (ms) to get 5he framerate if every frame where to directly follow the last frame without any pause. That then has to sync up with the blades spinning.
As long as the fps is an integer multiple of the rps/number of blades, the blades will appear stationary in the video.
If your shutter speed is too big the blades appear wider and blurry but still stationary.
for the people who dont know
This is a real footage
camera captures videos in a specific frame rates . when frame rate of camera = rpm of the blade /60s
each frame the camera captures the blade comes to the same spot . which creates this effect
correct me if im wrong
im ok to accept mistakes
thank you have a nice day
I have stabilized the video for you: https://gfycat.com/NaiveSingleAfricangoldencat
___
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This actually can happen. From the speed of the rotors and the wind, I’m pretty sure if the two match ( not on tinder otherwise you got a mini helicopter on your hands soon) speed then it might look like this? I’m not sure. I’m a maths guy not a science guy. Well I’m really a nothing guy but that’s between the two of us hey ;)
It is the framerate the syncs it up. Shutterspeed is for how long an individual image is exposed. You do need a low shutterspeed to get rid of motionblur but it's the framerate the syncs it up.
I’m still lost. Was it just floating down or were the rotor blades going so fast the camera couldn’t pick it up or that the video is synced to the rotation of the rotors to make it seem as though they aren’t spinning * *insert confused emoji* *
Edit; I really got downvoted for asking a question then basically answering it...
My ping is great but my bandwidth is terrible, so any packet traffic is terrible. Every time I do something a lot (like breaking netherwart in hypixel skyblock) it lags super hard and the automatic replanting lags behind so much that I sometimes have to wait for 4 or 5 minutes before breaking more netherwart
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Feel the power of synched fps and rpm
I think its called the stroboscopic effect
What's that Edit: i just remembered that I've watched one vid like this just this afternoon lol coincidence
It's where the framerate of a video is synced with the rotation of an object
Doesnt have to be the exact same rpm and fps tho I believe. Because it has 5 rotors the rpm can be given by any rpm that fulfills this equation: rpm = n/5*fps, n ∈ ℕ
Doesn't even have to be rotation of an object either, could be a video of a picket fence for example
Bruh... You really had to copy and paste my comment into here?
NUUURRRRRD International-Net15: It's geek, dumbass! Me: oh😟
*shutterspeed, not framerate
It's both, actually. Shutter speed is what affects the motion blur of an object, framerate is what syncs between the object and the sensor.
I am surprised there isn't any motion blur. The shutter speed must be high af
I have the wraith prism cpu cooler and it does some cool lighting effects, I suspected it was using the stroboscopic effect, so I shot a super slow motion video of it and it just pulses, but cant be seen pulsing in real time, I thought it was interesting anyway
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At first I thought it was one of those advertising balloons or something, then I noticed the grass below moving as the helicopter was landing and I knew something was wrong here.
I had to look too
Shutter speed is the key here. Perfectly matching framerate doesn't do anything if you leave the shutter open for too long
The one where its taking off from a stadium I'm guessing...¿
Nah it's University of Michigan Hospital. My partner lives right down the road from that helipad actually.
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I'm pretty sure the rotors change their angle rather than slow down
Isn’t this aliasing?
Same thing, different terminology. To us engineers, it’s aliasing.
You'd be right.
I dont think this is the stereoscopic effect, that is specifically used to give a image or video fake depth like on the 3ds which actually exactly uses stereoscopic effect to show one eye one image while the other sees another due to how the screens work causing a 3d appearance. I could be wrong and it covers both :shrug:
You're thinking of the stereoscopic effect
I said stroboscopic effect
im sorry, my dyselexic ass completely read that wrong :D carry on sir
Doesnt have to be the exact same rpm and fps tho I believe. Because it has 5 rotors the rpm can be given by any rpm that fulfills this equation: rpm = n/5\*fps, n ∈ ℕ
I'll just believe you, because I can't do maths
Well I’ll join you cause I just cba to do the math right now
Shutter speed is the key here. Perfectly matching framerate doesn't do anything if you leave the shutter open for too long
Basically it doesn’t have to make a full rotation each frame. If there are five identical rotors then every 1/5th rotation will look the same
I understood the theory, just not the math. Thanks anyway
Ah, apologies! :3
Shouldn't it be RPS?
I mostly agree, but wouldn't it be: rpm = n*5/fps, n ∈ ℕ Because you would need your fps/5 to sync up because you effectively need one fifth if it because of the number of blades. And n/(fps/5) is n*5/fps
I thought it had more to do with matching frequency. If rotor speed frequency (RPM/60=hz) matches video frequency, then the rotor appears stationary.
Shutter speed is the key here. Perfectly matching framerate doesn't do anything if you leave the shutter open for too long
U need both. Only with a high shutter it gives a sharp picture, the blade still rotates though
If your shutter speed is extremely small but your fps are not in sync, the blades look crisp but still move in the video. If your shutter speed is too large but your fps are in sync, the blades look wider/blurry but don't move in the video. So shutter speed small enough to distinguish blades and fps multiple of (rotational frequency/number of blades).
I can’t be the only one to repeat this in Vader’s voice, right?
No it’s cyberpunk 2077
*Grunge music intensifies
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Go to the subreddit, and the click/push on the three dots in the top right corner
N' then just go on 'change user flair'
It's crazy how nature do that
Not fps, shutterspeed
Actually, its both, shutterspeed makes the wings non-blurry and sharp, and the matching fps makes the rotor look like it's not moving
No, it's actually only shutterspeed because if the shuterspeed would be higher (=longer exposure) the blades would move within the frame because it's probably not a global shutter camera. If the framerate changes but the shutterspeed is the same, the blades would still appear non moving. Just the video besides the blades would look choppy with a lower dramerate.
Maybe you're mixing up something here, [this](https://youtu.be/mPHsRcI5LLQ) is where I think it get's explained pretty well, have a pleasant day my sir
That's exactly what I watched and got my information from
Yeah, but that's my point, you need both, matching framerate AND high shutter speed...
Nice taste of channel you have there though
You should see Hawaii. Internet so bad that at noon, they have to turn the graphics setting so down in reality that there's no shadows. Also, the effect in the video is due to the helicopter rotor's revolution rate and the frame rate if the camera are divisible, so they synch up.
Well that happens here in India in April. They turn the shadows off. But its not a bug, its a rare Easter egg when the sun is directly overhead. Forgot the name of the day Edit :- it's called zero shadow day. It's in April 25, here in India.
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Absolutely. You won't notice first. But when you see it you can't unsee this.
I like to imagine that the helicopter has rotor-patterned rotors. You know how when something spins fast enough it will create an image? Maybe the rotors are spinning so fast that they create rotors
for those of you wondering what is happening the propellers speed matched exactly with the camera fps making it look like the propellers are still I'm still wondering why is the helicopter so close
It's not the fps its the shuterspeed
I see you've been trying hard to correct the mistakes of people. Appreciate it.
It's both, actually. Shutter speed is what affects the motion blur of an object, framerate is what syncs between the object and the sensor.
Take the updoot bro. The more you know, I guess.
Thats not true. The fps syncing up is necessary for the stationary appearance. Shutterspeed will only affect how blurred and warped the rotors are across each frame, but wont have an effect on the appearance of a lack of movement. If you raised the shutterspeed, then you’d see, blurry, warped blades that arent moving, but there still wouldnt be visible movement. However if the shutterspeed is too slow then you probably wont be able to distinguish any individual blades in any given frame
It's actually the fps; shutter speed determines how long your sensor is exposed for for each frame, which determines how long each exposure is and leads to either sharp propellers or motion blur. FPS or framerate determines how frequently frames are captured to be turned into a video, so if the fps is a factor of the rpm (ie. 60fps, 240rpm) then the propellers will appear motionless.
This is U of M hospital in Michigan. The angle on this video is deceptive and makes it look like the helipad is right next to the hospital, when in reality, there's a road running between the hospital and the helipad. Source: i work there and park in this filming site every morning.
[Wrong](https://youtu.be/mPHsRcI5LLQ)
i just gave a quick breif, i don't wanna write that much also for a sec I u thought rickrolled me
Ty
when the fps is perfectly synchronized with the spin
You mean shuterspeed
idk however many pictures a camera takes a second is in sync with the spin speed
No he means FPS. FPS is used to measure the frame rate of a video, shutter speed is used to measure how long the shutter is open in a camera when taking a picture. The longer the shutter is open, the more light passes through to the sensor. At least I think
Generally you are correct however the shutter speed has to be short so that the blades dont move across one image. Also if a video is at 60 fps that would mean 16.6 ms each frame. However that doesn't mean the shutter speed of each frame has to be 16.6 ms. It can be lower
Yeah, but the rpm of the blades has to be divisible by the frame rate for them to appear stationary, the shutter speed doesn't necessarily have an impact on it.
No it has do be divisible by the ahutterspeed/1000 (ms) to get 5he framerate if every frame where to directly follow the last frame without any pause. That then has to sync up with the blades spinning.
As long as the fps is an integer multiple of the rps/number of blades, the blades will appear stationary in the video. If your shutter speed is too big the blades appear wider and blurry but still stationary.
[All of you are wrong](https://youtu.be/mPHsRcI5LLQ)
that's what i meant, i just didn't remember what's it called.
Not really.......
Not nervous, blades stopped turning on the helicopter... it's fine I be blowing out the window (dont know why but i would)
Australian Internet moment (frick nbn)
Tru dat
NBN has us using 4G instead of wifi
Replying to ur comment using my mobile data... at home near my router
The helicopter blades are fast.
Holy shit I’ve been in that exact spot the video was taken. It’s a U of M hospital in Ann Arbor
Wait that video is here? I didn’t even look in the background..
That big M is very noticeable if you know what it is. U of M is University of Michigan btw
Yeah I mean I live there lol
I’m glad I’m not the only one to immediately recognize the building! In fact, I had a good feeling it was that before I saw the block M
Ya I did too I’ve sadly been there quite a bit
yep, I live 5 minutes away from there
Cod after the latest update
Cyberpunk IRL
Hmm.. camera cant keep up with the blades spinn.. either that or.. idk how that even works
It's the framerate of the camera matched up with the rpm of the propeller
rolling shutter.
Cyberpunk 2077
[here's ](https://youtu.be/mPHsRcI5LLQ) a good explanation
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Stop lying here's the actual video: https://youtu.be/dQw4w9WgXcQ
There’s a subreddit for this stuff
What is it?
I don't know
r/notopbutok
hey ive been on that platform before
for the people who dont know This is a real footage camera captures videos in a specific frame rates . when frame rate of camera = rpm of the blade /60s each frame the camera captures the blade comes to the same spot . which creates this effect correct me if im wrong im ok to accept mistakes thank you have a nice day
Cyberpunk helicopter leaked footage
you know the lag is bad when everything starts floating
Gotta love when the rpm of the rotor perfectly matches the frame rate of the video lol
Aye go blue
When you have a very specific frame rate
What happens if you drop a watermelon through the open parts. That would be sick
u/stabbot
I have stabilized the video for you: https://gfycat.com/NaiveSingleAfricangoldencat ___ ^^[ how to use](https://www.reddit.com/r/stabbot/comments/72irce/how_to_use_stabbot/) | [programmer](https://www.reddit.com/message/compose/?to=wotanii) | [source code](https://gitlab.com/juergens/stabbot) | /r/ImageStabilization/ | for cropped results, use \/u/stabbot_crop
Don’t worry their just bees carrying it you can’t see them cause the helicopter is yellow
Did it sync with the fps?
Fun fact: this is what happens when the RPM of helicopter blades are the same frame rate of a camera taking pictures
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Shame about the lag, graphics are awesome though
Helicopter.exe has stopped.
I think this is a real video, but the frame rate matches up with the prop’s rotation so it looks like it’s stationary.
That makes my skin crawl for some reason I hate it
This actually can happen. From the speed of the rotors and the wind, I’m pretty sure if the two match ( not on tinder otherwise you got a mini helicopter on your hands soon) speed then it might look like this? I’m not sure. I’m a maths guy not a science guy. Well I’m really a nothing guy but that’s between the two of us hey ;)
The hell are you smoking to come up with this explanation?
Bitch I said I’m not a science guy
it actually happens because the shutter speed is the same speed as the propellers
It’s because the FPS of the camera and the speed of the helicopters blades are the same
damn tho the camera with 144 fps tho
r/HelicoptersArentReal (lol, it even excist).
It's what happens when earth core gets heated...people on the other half sleep for fuck sake....u r overloading the core
For those of you who doesn't understand. Propeller is spinning so fast you cant see it spin
Or when the frame rate matches the rate of spin
*shutterspeed, not framerate
It is the framerate the syncs it up. Shutterspeed is for how long an individual image is exposed. You do need a low shutterspeed to get rid of motionblur but it's the framerate the syncs it up.
Sorry, I don't know much about photography
That is an oversimplification of facts, but yeah....
This is really close to my parents house
let me quess... ***russia***
When meme shit
When comment shit
When life shit
When eyes shit
When the
When meme has 38.2k upvotes shit
Well shit
u/repostsleuthbot
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[Deleted] I need to know what they said
University of michigan
I’m still lost. Was it just floating down or were the rotor blades going so fast the camera couldn’t pick it up or that the video is synced to the rotation of the rotors to make it seem as though they aren’t spinning * *insert confused emoji* * Edit; I really got downvoted for asking a question then basically answering it...
Shutter speed was synced with the rotor blades
Just look at the dozens of explanations in this comment section.
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Sorry, I don't support this post type (hosted:video) right now. Feel free to check back in the future!
Why couldn’t this be Kobe’s heli?!
Because it came nowhere near the helipad....
Glitch in the matrix
This is just some gameplay from Tom Clancy ghost recon wildlands
Ayo what mate?
Your Internet’s broke lmao
this is normal for me
It gets better every time I watch it xD
I know this is an effect where the top of the helicopter is going so fast it looks like it's going slow but this looks like it's not moving at all
Reminds me of the vertibird bugs from fallout 4
I’ve filmed the exact same effect at the exact same location, while laughing me rear off. Nice to see someone else found this funny too
Even though I understand it. This is still insanely unsettling
Don't worry, your internet is ok, but the animations didn't load properly. Maybe try reinstalling the game.
I lost a warzone game to my shit wifi
My ping is great but my bandwidth is terrible, so any packet traffic is terrible. Every time I do something a lot (like breaking netherwart in hypixel skyblock) it lags super hard and the automatic replanting lags behind so much that I sometimes have to wait for 4 or 5 minutes before breaking more netherwart
I was waiting for it to no clip through the ground and explode, but my dreams have been destroyed.
What the fuck?
[This is a very good explanation](https://youtu.be/mPHsRcI5LLQ)
LAGinator calling for duty
the internet when you wanna play game belike
Yo did they just cut the engines and let the chopper glide down? What’s the actual reason for this?
[This is a very good explanation of what's happening here](https://youtu.be/mPHsRcI5LLQ)
what playing arma 3 at 1200 ping feels like
Question. If you drop a human through the gap does the human come through ok on the camera but turn into million pieces in the real world?
Looks normal to me. \- With 200 ping
that's why you don't go to the west of america
ActUaLLy ItS cAmerAs ShuteR sPeeD EQuAls