- This topic has 1 reply, 2 voices, and was last updated 12 years, 7 months ago by .
-
Posts
-
Hi, I’m entirely new to this, so please bear with me if this is a really stupid question..
For a project, I’m looking at changing the background of a walking subject in film footage to something more surreal – but I don’t have access to a blue screen to do some overlapping… Do you know what would be the easiest way to achieve this?
I would also like to clip an image to the subject and have her interact with a 3d object (a sink). The camera rolls from left to right, following her.
Also, for the (to be)painted background, is this done in Photoshop or Motion(Apple)?
Thank you – I’m having a lot of trouble finding this sort of information, so I would be very very grateful for any advice!
Thanks again!
For a project, I’m looking at changing the background of a walking subject in film footage to something more surreal – but I don’t have access to a blue screen to do some overlapping… Do you know what would be the easiest way to achieve this?
By overlapping im guessing you are trying to say keying. You could isolate your subject by two methods, keying or rotoscoping.
If you don’t have access to a specially formulated green/blue screen, you could do a poor mans chroma key by purchasing a pure green/blue paint or cloth and light the screen well.I would also like to clip an image to the subject and have her interact with a 3d object (a sink). The camera rolls from left to right, following her.
Add tracking markers on the screen to matchmove to the camera. You may also need markers on the subject to track any 3D object. But a careful wardrobe selection could help you avoid adding any extra markers that would have to be cleaned up in post.
Also, for the (to be)painted background, is this done in Photoshop or Motion(Apple)?
Photoshop. But it depends on the background and the camera motion. If the BG is far away then there will not be much perspective change. so a still image may work. If you limit the camera to a nodal pan, again there will not be any perspective change in the BG.
- You must be logged in to reply to this topic.