Does anyone have an opinion on what to use for rotoscoping video?
I know it can be done with photoshop frame by frame, but does After Effects or Motion have a more efficient method of rotoscoping? Are there any other programs out there that do a good job?
For an example, lets say there is a talent standing in the middle of a neighborhood, the camera is moving, and I wanted to place a robot behind the talent and/or trees.
What would be the easiest or fastest way to do a fair quality rotoscope of that?
Thanks a lot for the input!
Spencer Stewart Wrote:
You can do that in Mirage without exporting (it is a raster animation/compositing program, basically you have layers like photoshop and each layer has frames).
Depending on the complexity of your original footage, it may be possible to track an insertion area [Mirage does this through the 'rototracker'], but usually you will have to at least tweak frame-by-frame when rotoscoping, often you will need to edit many frames.
Depending on your background, you may be able to key out the area (or most of the area) where the robot would be inserted [chroma, luma, etc], making your job a bit easier.
Note: if you want to try it out and see what i mean, mirage had a 30 day full use trial last time I checked.
For that, you will not want Photoshop, it would be next to impossible. You will need After Effects for that. For example, I just did a clip today with a moving camera. Two actors were running with a lightsaber keyed in behind a tree and a car. After you get footage of the robot or whatever(it would have to be greenscreened or similar), in After Effects you can place that on top of the original footage. Then you can keyframe it, so that the robot will be in the same position in each frame. Then you can add masks to the robot layer and keyframe those - which is like making parts of the robot invisible when a tree or person would be in front of it. And you will have to go frame by frame for the best result, I really know of no other way.
I'll have to check out mirage. Sounds pretty promising. The tracking function seems like a dream. Will it work under an NLE, like FCP?
I was considering to make a portable green screen to cheat out some of the rotoscoping too. Have it behind the actor, then tape a clean slate, and later composite the robot in-between the two layers. Was that what you had in mind?
It sounds like it would add a lot of time in the edit bay if we had camera movement, so we'll probably just lock all the shots then add pseudo-camera movement in post.
Also, I would like to affirm one last thing: I should record in progressive scan, rather than interlaced, right?
Thanks a lot for your time and information.
Progressive emulates the look of film more. Also, if you intend to show your film on the computer, use progressive. If there's a chance of showing it on the TV, then use interlaced (which is what television uses). If you will use both, stick with interlaced(although I've had no problems mixing interlaced and progressive yet.)[/quote]