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walk cycle from bluescreen shot on AE?
hello,
I have access to a small blue screen. I am trying to create bluescreen footage of a girl walking for about 2-3 minutes from left to right…the studio isnt big enough to shoot all of that and i dont have access to a treadmill…
I was wondering if there’s any way to loop/cycle her walk so to make it look like she’s continueosly walking for 2-3 minutes, and in between sometimes stoping/sitting/getting up/
is this reasonably possible whlst still looking good? the girl will be sillouhette so im only interested in getting the motion right…
thank you.
thanx for the help.
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6 Replies
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Yeah, if it’s just silhouette you’re in luck. You can take as little as one walk cycle and loop it. I’d recommend using a fast shutter to avoid having to work with motion blur. Also, pull the walk cycle from a few steps in, not the first set – it’ll loop better.
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thanks for the help,
do you know what the best tools in ae is for this? im not good with expressions… would i just use time effects for this? and could i loop a walk cycle + add parts when she’s not walking and blend it to look smooth…? any thoughts of a good plugin/effect for that?
thanx for the help.
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That’s the thing that probably won’t work so well. How do you take this robotic walk and blend it with a natural walk/stop/sit?
I think unless you do some clever animation or scene blending you’re going to see a jump. Expect that going in and you won’t be surprised when you have to play with the transition for an hour or two.
Also, I hope I don’t have to mention this, but when the talent is on frame left, you’ll see more of their front. When they are on the frame right you’ll see more of their back (assuming they walk left to right). It’s those 2 cycles where they are as close to center as possible that you want to build your work from. Otherwise they will look like they are walking in a Escher painting.
As far as the key goes, use Kelight to remove the background and review this tut for a possible mask. And/or remember the Effects > Generate > Fill.
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That would be this tut:
https://library.creativecow.net/articles/rabinowitz_aharon/junk_mattes/video-tutorial.php -
If somebody’s paying for this, get a wide bluescreen, not small. You want her to walk over the longest stretch possible so you have as many walk cycles as possible to choose from.
Mark the floor in regular intervals so her pace is the same length throughout.
Get a metronome so she walks at the same pace.
Shoot from as far away as you can to minimize perspective distortion.
Since she’s in silhouette, dress her in colours opposite the background. Maybe black, then light the background well. Yes, the background should still be a saturated green or blue.This will be a lot of work matching her walk. Do some tests, maybe on a wall with a bright sky behind. Hey, why not do the final that way? Anyway, do the tests to know what needs to be in place on set, how to shoot it, and so on. Then try to cur a cycle together, with sitting and so on.
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thank you guys i’ve got access to a bluescreen studio but its relatively small…ill try and see how it goes with looping the walk cycle..i know it wont come out too great, but worth a shot!!
how are things liek that done in film sets? do they just get an extremely long chromakey background and move the camera on a rail?
thanx again.
thanx for the help.
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