pulsing video

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pulsing video

Postby Akashio » Sat Dec 07, 2002 2:48 am

How do you make the video pulse to beat like in VicBond007's "Make it Better"?
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Postby Zarxrax » Sat Dec 07, 2002 2:40 pm

Zoom.
You can do this by using the motion settings in premiere, or any number of video filers.
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Postby y2kwizard » Sat Dec 07, 2002 3:59 pm

If you use AE, you can do it extremely easily by keyframing the Scale then tweaking. You get tons of flexibility as well, for you can SELECT MULTIPLE KEYFRAMES. Can you even do this in Premiere? Not sure. I tried to real quick and nothing doing, but I coul dhave missed osmeting.
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Postby VicBond007 » Sat Dec 07, 2002 4:57 pm

zarxrax is right. Well, they're both right, but Zarxrax's way is how I did it (if you're buying After Effects to do just that, that's money better spent elsewhere, like buying me webhosting ^.~)

I'm gonna go do the screenshot thing/quick-n-dirty tutorial thing now, 'cuz...I'm bored!
"With free bagels we can live like Kings!...Kings who have to pay for their own castle in order to get the free bagels!" - Omar Jenkins
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Postby VicBond007 » Sat Dec 07, 2002 6:58 pm

OK, tutorial time. First, fire up Premiere and load up your project. To make the video bounce, your clip has to be located in video2 or higher, so drop it there. Now in your timeline, scroll around until you hear a beat. Use the arrow keys to find precisely where it starts. It helps to have the audio track showing the waveform but isn't required. That basically translates to "take the two seconds to unfold the waveform for that track."

When you find the beat, use the arrow keys to move your timeline marker one frame EARLIER. I'm sure there's some scientific way to explain this (eyes process input and sync it to audio at a delayed rate or something) but the bottom line is you're going to make your bounce start 1 frame early because any cut you make EXACTLY on the beat WILL look slightly off sync when you play it back. Yeah, it looks OK, but you can do better. When you're done, it'll look a little something like this.
Image

So your marker's set for your beatpoint, now you gotta apply motion. Right click on the clip you're going to edit and go to video options/motion.
Image
This is the motion mapper. It's not too good since it uses all absolute % values for effect timing, but it gets the job done without having to shell out the cash for After Effects. Plus you don't have to waste your time with inserting 5,000 different trials of pre-renders from after effects. If you don't like it, change the timing right from Premiere. But enough of my rambling...

If this is the first time you've ever opened the motion menu then there will be a video playing in the upper left hand corner. Pause that, it's just going to get in the way later. you'll notice that in addition to your timline marker line, a second line will appear. This is the motion mapper's own little marker and it's purpose is to show you where on your master timeline, the marker is in the motion mapper's mini timeline (relative to the clip) as pointed to by what I'll be calling the tracker marker. I don't know why, but I like the sound of it, and this is my guide so ha.
Image
Lost yet? I hope not. Every new motion mapped object has two keyframes, the start, and the end. They show up on the motion map timeline as vertical lines. The first keyframe is already selected (you can tell because there's an arrow above it). Click the "CENTER" button to assign your video a position on screen at this keyframe as center (by default the motion mapper scrolls the video left to right). Click on the end keyframe and do the same thing. Now your video is centered throughout the duration of the motion, unless of course you change it.
Image
Now you have to create a keyframe at the point which you marked on your master timeline by leaving the tracker there. Click anywhere directly underneath the motion map timeline and you'll see an arrow will follow your mouse wherever you drag it. You'll also notice the tracker marker for the motion map timeline, is moving in the main timeline also. drag around until BOTH lines disappear. This means that they're overlapping. Now on the motion map timeline, click right on the line where your new arrow is pointing.
Image
Now before you set a value, create the ending keyframe. This will make your job easier in the end. In this current video, I've got a fast bounce going on, so I want it to take only 3 frames to return to normal. So click under the motion map timeline again and watch the tracker marker in the master timeline window move 3 frames. It's not a smooth movement, so you can count 3 "clicks" worth of movement. Click on the motion map timeline again to create an ending keyframe.
Image
Almost done. Now if you want your clip to start at 100%, gradually zoom in, and then falloff sharp for 3 frames, then you can ignore this, and in case you didn't know, I'm being sarcastic.
Click anywhere between the start of the motion map timeline, and the first keyframe you made to create another keyframe. Where you create this keyframe is irrelevent so long as it falls between those two points. Drag that keyframe RIGHT UP AGAINST the first keyframe you made. This ensures that your video is zoomed at 100% until the last possible moment, and then will jump up and then zoom back out for 3 frames.
Image
Got a bunch of keyframes, but don't know what to do with them? Relax, we're almost done. Click on the first keyframe you made and in the settings dialogue near the bottom of the window, set the zoom to something obvious, but not extreme. I tend to use 300%. Now click OK. Render your timeline and you're set. If you did it right, it should look like the clip at the URL at the bottom of this post. If you screwed up, crack open the manual, because I really can't be more clear than this ^.~

Demo
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http://stompbox.dhs.org/~Evangelion/bou ... bounce.mpg
"With free bagels we can live like Kings!...Kings who have to pay for their own castle in order to get the free bagels!" - Omar Jenkins
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Postby iserlohn » Sat Dec 07, 2002 7:05 pm

For those having problems figuring out where the hell the bounce is, check the file in virtualdub at frames 24-29.
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Postby klinky » Sat Dec 07, 2002 8:20 pm

Well I may not have a better way of doing this but, I always hated motion controls.

For my segment in MI, wanted a pulsing video FX. What I did was, I just copy pasted the clip to track 1 and track 2.

Setup track1 with a image pan, no keyframes. Zoomed it in a bit. Then went along the timeline and on the beats, made track 2 transperant(using rubber bands), then made it comeback.

This seems wayyy easier then messing around with virtualdub and the motion control setting as you can see the waveform if you so like and you could key frame the image pan, to create smoother zooming effect, if you wished(I didn't want or need to).

You could also just setup track2 with your clip. Cut parts that are on the beats. Apply a image pan to one of them. Set it up with a keyframed zoom on it. Then copy, goto the next clip, right click Paste Attributes, then hit "Settings" and hit okay. Repeat for each clip and then adjust the image pan filter if you so wish. Like if you wanted to track someone with the zoom, you'd have to change the keyframes so it zooms in on said person.


~klinky
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Postby VicBond007 » Sat Dec 07, 2002 10:55 pm

That's another way of doing it. I like this way a bit more because it makes making changes easier (unless I change the speed of a clip). There's plenty of ways to approach the problem, ya just gotta think. Heck, I could do this in Lightwave if I wanted to...and really hated myself... ;)
"With free bagels we can live like Kings!...Kings who have to pay for their own castle in order to get the free bagels!" - Omar Jenkins
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Postby klinky » Sat Dec 07, 2002 11:23 pm

VicBond007 wrote:That's another way of doing it. I like this way a bit more because it makes making changes easier (unless I change the speed of a clip). There's plenty of ways to approach the problem, ya just gotta think. Heck, I could do this in Lightwave if I wanted to...and really hated myself... ;)



Think frame-by-frame would be more painful then lightwave, but yeah, lightwave would not be the best idea for this :p


~klinky
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Postby VicBond007 » Sat Dec 07, 2002 11:32 pm

yeah. Frame by frame would be bastardly.

I actually used Lightwave for motion once. The disco ball parts in my DDR2 video. painful stuff. I hate 3d editing. Thank goodness I have a friend who doesn't who bought the software which I'm still "evaluating" ;) I'll stick with 2 dimenions thank you! Life's so much easier when everything's flat.
"With free bagels we can live like Kings!...Kings who have to pay for their own castle in order to get the free bagels!" - Omar Jenkins
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Postby Akashio » Sun Dec 08, 2002 11:26 pm

hey VicBond007, what is the name of the filter you were experimenting with in premiere at 1:04 - 1:12?

Oh, and I noticed your video is 1300adv VBR. How did you encode it in VBR without making the video have a huge buffer size? It responds like it's CBR! :shock:
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Postby Zarxrax » Mon Dec 09, 2002 2:42 am

:roll: God, that comment really livened up my evening. I don't see what's so hard about the concept that people don't understand. Bitrate is what effects the filesize. The bitrate he used, with the length of his video, resulted in the filesize. If he used a higher bitrate, then he would have gotten a higher filesize. If he had used CBR, it would have been the same filesize, just not looked as nice.
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Postby klinky » Mon Dec 09, 2002 2:50 am

Zarxrax wrote::roll: God, that comment really livened up my evening. I don't see what's so hard about the concept that people don't understand. Bitrate is what effects the filesize. The bitrate he used, with the length of his video, resulted in the filesize. If he used a higher bitrate, then he would have gotten a higher filesize. If he had used CBR, it would have been the same filesize, just not looked as nice.


Ha, you're mistaken sir!

He is speaking about keyframes, not about file size !! HA HAHAHA HAHAHA OMG TEh Lamer :O

Err well VBR, tis wouldn't it still depend on the keyframes setup in the file rather then the bitrate ? VBR is just each frame uses a variable bitrate, but there is still a way to manipulate how many keyframes are in a video stream...


~klinky
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Postby Akashio » Mon Dec 09, 2002 3:02 am

klinky wrote:
Zarxrax wrote::roll: God, that comment really livened up my evening. I don't see what's so hard about the concept that people don't understand. Bitrate is what effects the filesize. The bitrate he used, with the length of his video, resulted in the filesize. If he used a higher bitrate, then he would have gotten a higher filesize. If he had used CBR, it would have been the same filesize, just not looked as nice.


Ha, you're mistaken sir!

He is speaking about keyframes, not about file size !! HA HAHAHA HAHAHA OMG TEh Lamer :O

Err well VBR, tis wouldn't it still depend on the keyframes setup in the file rather then the bitrate ? VBR is just each frame uses a variable bitrate, but there is still a way to manipulate how many keyframes are in a video stream...


~klinky


So I should just input more keyframes or what? Do I make it I frames only (that seems rather weird)?
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Postby Akashio » Mon Dec 09, 2002 3:04 am

Zarxrax wrote::roll: God, that comment really livened up my evening. I don't see what's so hard about the concept that people don't understand. Bitrate is what effects the filesize. The bitrate he used, with the length of his video, resulted in the filesize. If he used a higher bitrate, then he would have gotten a higher filesize. If he had used CBR, it would have been the same filesize, just not looked as nice.


Wow. That's like the 7,000,000th time you've misinterpreted one of my posts... Just leave... please, just leave....
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