Need to have a ghost walk across a road. I want her to be slightly transparent and have a soft glow to her. I'm not sure how to do this,am basically just researching the scene right now. Are there more ways to shoot this? Would I need to do it with green screen? How difficult would this be? Many thanks!
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After Effects Ghosts
- Thread starter romantico
- Start date
Green screen is one solution, but tricky to get the camera to match the road shot(unless you have a really big studio). Film the road, record and measure everything (angles on camera, angles on road, distances/etc). Film the actor walking on the road (for reference) then set it up in the studio with a green screen using the reference footage to make sure it looks right.
If it were me I'd just film the road with the actor crossing the road. Time how long that shot is, then film the road with no actor for the same length of time. I'd then roto the actor out (I'd use Mocha v2 AE). Then I'd comp the actor over the second shot with some opacity, blur, and glow. Skip the green screen entirely.
Key trick to this is making sure your clean plate is the same length as the action plate and trying really hard to make sure the scene doesn't change much between shots.
Rotoing the actor shouldn't be that hard(but will take time). You might even be able to use the clean plate to make a difference matte as a starting point. Lots of way to extract one person from a scene. The closer you are to the actor the harder it will be (hair/clothing details) but a medium shot is usually very doable.
If you want to move the camera while doing the shot your now talking about a motion control rig that can repeat a camera move.
This is all pretty simple stuff though, just have to play with it. Easy to run some tests until your happy with how to do it. You can get away with a lot of bad roto work when doing ghosts, since the blur and glow hide mistakes easily. I'd bet there are a dozen tutorials on ways to do this on the net, you might want to google for it.
If it were me I'd just film the road with the actor crossing the road. Time how long that shot is, then film the road with no actor for the same length of time. I'd then roto the actor out (I'd use Mocha v2 AE). Then I'd comp the actor over the second shot with some opacity, blur, and glow. Skip the green screen entirely.
Key trick to this is making sure your clean plate is the same length as the action plate and trying really hard to make sure the scene doesn't change much between shots.
Rotoing the actor shouldn't be that hard(but will take time). You might even be able to use the clean plate to make a difference matte as a starting point. Lots of way to extract one person from a scene. The closer you are to the actor the harder it will be (hair/clothing details) but a medium shot is usually very doable.
If you want to move the camera while doing the shot your now talking about a motion control rig that can repeat a camera move.
This is all pretty simple stuff though, just have to play with it. Easy to run some tests until your happy with how to do it. You can get away with a lot of bad roto work when doing ghosts, since the blur and glow hide mistakes easily. I'd bet there are a dozen tutorials on ways to do this on the net, you might want to google for it.