Anti-Grav Helicopter
The FPS of the camera synced up with the revolutions per second of the helicopter, creating a cool effect.
EDIT:60,747 Pageviews on this page as of 6:20 1/28/2008. Wonderful!
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Wow that’s great, you just learned how to use your 3Ds max.
or, you just sync the fps of the camera to the rotor speed…!
“or, you just sync the fps of the camera to the rotor speed…!”
That is how it was done
… i guess people dont read the post anymore… heaven forbid this dude makes a post with out a pic or vid…
Yeah this blogs top 2 posts both have vids. Here’s the other: http://cipherblog.net/2007/12/27/marriage-proposal-allaiphone-ad/
wow that really cool
I love how the people who mention programs obviously have never used them. (It’s so Photoshopped! Or it’s 3Ds max!). Helicopter rotors go from 8-11 rotations per second. Most video for TV is 30FPS, 24 for cinema. I’ve seen this before, but not for so long. Cool!
yeah I’ve seen it too… we had a really nice camera for school and you could manually adjust the FPS, we turned the knob and looked in the monitor until it did this. But when the helicopter climbed the rotor speed slowed a little and we lost it.
simple, but really cool.
nice
Staff edit: Jojo, do not insult other people or use offensive language or you will be blocked from commenting.
We have 8 comments (not counting mine) per 45000 page views!
This video is pretty stupid, they could have taken out the blades or something…
GOOD grief people the guy said he synced the rotation and fps give him a break it is a good vid
Okay, the effort is there, yes, I suppose I’ve adopted the negativity of the fact that it’s impossible and ridiculous. From the other aspect, yes it’s good, and cool too.
Yes, adjusting the frame rate of the camera to the blades is a neat way of doing this. Because you can still see some small blade movement, it obviously cannot perfect, but still a very, very cool thing.
Good job and I am sure it was fun to do.
Why’s everyone being so mean? It says *right underneath the video* that the frames are in sync with the blades. Of course it’s “fake,” there’s no such thing as antigravity..it’s just a cool video.
I like the mix of cynical and anti-cynical we have going here! =)
Very well done!
@Lerih Thanks!
@jack Yep!
That is *so* photoshopped
So?
If any of you have any clue about physics or have had to time a rotating object (like timing a car) you would under stand this. It’s all about FPS! You can do the same thing with a variable speed strobe light and a fan. Or have you noticed how driving next to a car doing around 60mph, the wheels look like they stop or even start to “spin” backwards? same concept. this is because the human eye has a resolution of about 60fps. Do some research before you throw out a program effect!
Great work!
Думаю понравится любому!
I get the FPS synced up with the blade rate. But would that cause the shadows of the blades to be seen on the helicopter? Confused on that part.
yes of course it would, think of each frame as saving a moment in time.. its like a really long flip book, at the instant that frame took its picture, there would be a shadow where-ever the blade is at that moment, if you repeat that at the same rate at which the blades are spinning you would have the shadow in the same spot every time (when the blade went around), so the shadow is in the same spot…..
It’s aliasing.
Curious George
The shadows are always there. When the camera stores a frame, the blades happen to be revolving and always being at the same point.
And shadows are always there - just because the blades are rotating fast doesn’t mean they outrun light =) Why wouldn’t the shadows be there?
Urban Bomber
60 mph has nothing to do with 60 fps, so please don’t lecture everyone here about your in-depth knowledge of physics.
It’s called aliasing- which is when the sampling rate is not high enough to capture the phenomena being observed. High frequencies wrap according to the Nyquist criteria around into low frequencies (That’s why sometimes wheels look like they are spinning slowly or even stopped, as with this video). The same thing happens with computer graphics - the sampling rate (number of pixels) is not high enough to display an sharp edge attempting to be rendered, and you get blocky edges.
Ah, thanks, jeff and JD! Sorry, it should have been obvious, I guess, haha.
“Or have you noticed how driving next to a car doing around 60mph, the wheels look like they stop or even start to “spin” backwards? same concept. this is because the human eye has a resolution of about 60fps”
60mph and 60fps are not equivalent…
Ackmey and JD, Urban Bomber never said the two were related. He just said that around 60mph, it starts to look like the wheels are stopping or going backwards. He never said at exactly 60mph, because of our 60mph frame rate, the wheels appear stopped, did he?
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