Roto question (blurred areas) ...

[scrimski]

Unlike Shake or Fusion you don't have a seperate mask for the feather(you may feather the whole mask with a certain amount, but may not change the shape of the feathered part). Try two masks with a transparency set to 50% covering the motion blurred part before and behind the arm.

[ScottKane]

Have you added motion blur to the msk? just asking

[everlite]

No, though to be honest it's still in progress. Would this help to do you think? I also noticed yesterday that you can apply motion blur to select mask handles, would this also be helpful?

- Dave.

[ragecg]

Just curious, but are you already too far along in this shot to simply stabalize it, and apply the tracking data to a clean plate, thus avoiding the roto process?

Just wondering.

However, if it is just for learning the roto process, then just ignore me:)

[everlite]

Hi,

No i'm not doing this for work, just learning the basics of rotoscoping. Though saying that is there a better way ...

Probably best if i start from the beginning :)

Please see this clip:

http://www.istockphoto.com/file_closeup.php?id=2955261

I'm going to completely alter the backgroud, beef up the mountains and maybe make it look a little LOTRs like, add a more interesting path, and change the guys hat. So given that is there another option of say adding in the path without rotoing the guys out first?

Cheers - Dave.

[ScottKane]

If you make the masks with motion blur, and just practise a bit and make nice rotoscoping that will fix the problem and it wont be noticable cause its fast motion

[everlite]

yeh i tried that but the width of the motion blur is less than the width of the blur in the plate, as above. But so far it aint looking too bad and going smoothly, this is a first for me so it's new ground. Any tips for rotoing in AE?

- Dave.

[eodmpink]

yeh i tried that but the width of the motion blur is less than the width of the blur in the plate, as above. But so far it aint looking too bad and going smoothly, this is a first for me so it's new ground. Any tips for rotoing in AE?

- Dave.

You can get more motion blur by increasing the shutter angle in composition advanced settings.

[ragecg]

One more thought, I looked at the video, and I noticed that camera is "locked-off", meaning, it doesnt move during the shot.

This means that you MIGHT have some luck with taking the first frame of the shot as your "clean" plate, and then using that as a difference matte to in essence, matte-out the guy automaticly.

..isolating the background in the process:)

....just some thoughts:)

Good luck!

[everlite]

Cheers,

matte-out the guy automaticly

Yeh the camera's locked off, though it moves a few pixels but i've compesated for that. i understand what you mean by taking the first frame as a matte, but if i need to extract the guy i'm guessing the only way i can do this is by rotoing him out.

In the end i want the guy on a seperate layer so i can place other layers in front of and behind him. So far i've just gone through and roto'd him out which don't look too bad. One thing that i'm a little confused by is the edges tend to flicker slightly, should i feather the masks and add a little motion blur do you think?

- Dave.

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