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spydurhank wrote:Yeah you can do it in Visionlab. The more frequently your injured actor moves his severed limbs... the more difficult it will become to composite.
You'll want to prepare a storyboard for all the effects shots and then shoot with a stationary camera on a tripod.
1st you need a background plate without your injured actor in it. You can have other actors "doctors" if you really need them in this background layer.
2nd. Shoot your actor footage, with or without doctors depending on how you shot the background plate.
You can either use green or blue material over the actors missing limbs or simply use Visionlabs masking features to roto out the missing limbs. Wrap bandages around your actors limbs where you think they should be.
To make it look like the bandages are wrapped around "stubs"... wrap them around something circular and take a picture of them. Use several angles depending on your shots "refer back to your storyboard for this"
Import those photos into an image editing app like photoshop or gimp and erase the parts that you don't need but make sure the pics have an alpha channel.
Place your background layer on the timeline followed by your injured actor footage. Key out the blue or green material to reveal the background plate and making the illusion of your actor having missing limbs. Be wary of shadows which you may also have to roto.
Place the "nub" pics that you took on the timeline and scale them up or down as needed so they fit on the end of your actors severed limbs. Hand track them so they seem to move along with your injured actors limbs.
You may have to adjust for brightness and contrast variations between the backplate and the actor footage so be wary of that as well. You should also use a directional or Gausian blur on the "nub" pics to simulate motion blur if your actor moves his limbs too much. And also match the noise and grain "if any" from your actor footage onto the nub pcs because they are just well... pics.
Hope this helps.
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