roto

surf

surf

Veteran
I am working on a close up shot, and I have decided to so some rotoscoping on the face. I have used to clone tool (45 clones) and I have made the first frame. It is cool. But the head on the pic moves a little. So all my work goes to nothing in the 3rd frame. So I have decided to motion track the move. But how can I apply the data efficiently to all that 45 clones?
 
I don't think you actually track clone/paint strokes in AE. If you can put them on a seperate 3d layer you can use this method that I posted in a different thread.

oneinfiniteloop said:
Here's the easiest way to do this:

1. On your foreground layer open up the Tracker Controls under the Window menu.

2. Select stabilize as the track type and find a track point on your foreground. This is the most important part, you need to find a point that is high contrast, and isolated from like color values.

3. Once you have your tracker set, hit the play button on the Tracker Controls and AE will start the track.

4. Once you get a clean track (which shouldn't be too hard in your case with slight movement) go back to the first frame and make your foreground a 3D Layer.

5. Go to Layer->New->Camera, and add a 3D camera. Parent that camera to the foreground layer with the tracking data and save.

Voila! You are done. Now, whenever you add a element to your comp and make it a 3d layer it is automatically tracked in. Very simple and effecient.
Click to expand...

In your case the foreground would be the original plate of the head with no roto, and the clone strokes is the elements.

I can't remember if the cloning can be on it's own layer (I'm leaning towards not) so in that case you can use the alpha channel of the clone strokes as a track matte, then use that as the 3d layer. This way you can have your strokes isolated, and the video on another layer and the above tracking tip will work. This is the best way I've found to do such things in AE.
 
got it!
I have done the roto with vector paint. then only that is seealbe, the original picture is not. then I add the original pic to the comp to a lower layer, track a point on the face, and apply the data, to the vector paint layer. I had to correct the postion (the anchor point, because the position contained the tracked data) in 3 frames. and finally it is done
 
roto is painful in AE. Its a simple nightmare with none of the
finesse controls you really want. I roto in commotion or shake, with
shake starting to take the lead in that balance, but commotion is
perfectly capable. I highly suggest tracking down a copy as its now
a dead app and goes for pennies on ebay, etc. It'll pay for itself in a
few hours :)
 
I've heard great things about commotion, and I just recently switched over to shake from AE after spending too much time on complex roto tasks that were far more manageable in shake.
 
I dunno Greggl, they added rotobezier to AE7 and it works basically the same as commotion to me. I use shake too, but lately for quick rotos, AE7 has done the trick. The key, as always, is to use as few nodes as possible, and as many eliptical shapes as possible, and really understand the motion of the scene. Remember, it is less important to have an exact cut out of the object as it is to get the motion right. Too many points and adjustments temporally lead to swimming issues, etc.

I'de never use any paint or clone tool, but I've heard of people who do. Seems painful to me! Stick to Rotobeziers in whatever program you use!
 
i havent seen the bezier rotos in 7.. if they have em, with autokey for object/control point, thats a BIG step in the right direction. offsets, motion blur and assign trackers
is bonus, but AE has lacked the core tools for WAY too long.

Hehe.. if they can work out their multiplication assumotions and get a workable
node system in place, it'd be a decent app :)
 
Greggl said:
i havent seen the bezier rotos in 7.. if they have em, with autokey for object/control point, thats a BIG step in the right direction. offsets, motion blur and assign trackers
is bonus, but AE has lacked the core tools for WAY too long.

Hehe.. if they can work out their multiplication assumotions and get a workable
node system in place, it'd be a decent app :)
Click to expand...

Many people share these frustrations. After using shake for roto work I find it much more manageable than AE. Sometimes when working with lots of masks, AE can get frustrating.
 
I have made today the second shot. oh, the head is moving a little to the back, and I could not manage the roto as good as in the first shot, because, I had to scale it too, and that does not work as good as I want :S
 
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