[Kieran Hood]

Hi guys,
I’ve been exploring this further and found a product called ‘Mocha’ by Imagineer systems. It looks great, perfect for 2d tracking, unlike boujou which is designed for 3d tracking.

The exciting news is, Mocha is built in to Adobe After Effects CS4!

I’m downloading a trial version of Mocha. I can do some pretty complex shots and allows the tracked feature to run out of shot.

My shot has some trees in the way, it’ll be interesting to see how it handles this shot.

[Kieran Hood]

Thanks Kevin. I’d not seen this tutorial, I’ve seen alot of his others which are great, this was a really good suggestion. Thankyou.
I’m using boujou to mask out the plane, this might help as Andrew explains that boujou doesn’t like moving parts.

You make a good point about AAE’s tracker. It does like a proper contrast. I could may tinker with some filters to help it find the edges.

I see Creative Cows very own Pete O’Connell has some track tutorials with a skateboarder and he uses lots of singular tracking points. I’ll see if I can maybe adopt that method too.

Thanks again for your help.
Regards,
Kieran
PS: I’ll let you know how I get on.

[Kieran Hood]

Hola Alejandro,

I had no idea veoh was blocked in so many countries, I just checked and it’s about 200 countries.

Ok, I’ve uploaded the same video to youtube.

Youtube version: https://www.youtube.com/watch?v=P9d6oI_cT9c

Veoh version (clearer): https://www.veoh.com/videos/v16680867Ryyw9gWg

Many thanks,
Kieran

[Kieran Hood]

It looks okish I guess….not bad for a 1st effort right?

https://www.youtube.com/watch?v=zCvrCNIFPaM

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[Kieran Hood]

What a fantastic site. Thanks Mike

[Kieran Hood]

Dave, thankyou so much. I finally cracked it.

The final solution is:

Null object (with tracked data)
Background (contains mask in Add mode) layer linked to Null 1
Footage (set to Alpha inverted matte)
Background

It’s starting to make sense. To link a mask to tracking data you have to put the mask onto a matte layer. I’m still a tad confused but it works. It would be so much easier if you could just link a mask to tracking data, but hey.

Thanks again everyone for your help. I’ll show you the final video when its finished.

[Kieran Hood]

I’d love to keylight it out, it’d save so much stress. But when I do, to lose the green the background really pixellates as I raise the screengain and lower the white.

Is there some other setting I can use to kill the green? I use the eye dropper to choose the green and end up raising the screengain to about 130 and lowering the white to about 20 and I just loose all quality. For a number of frames the green eyepatch just goes gray.

Using the motion tracker I can map a mask onto the eyepatch and it moves smoothly, I just can’t get it to cut through the original footage and onto my clear backdrop.

Dave, yeah, I have a clear frame of the empty background.

Thanks for your help,
Kieran

[Kieran Hood]

Very good point. I like the way you think. I’m going to use fake bllod type makeup around my eye, but yes you’re right, using a little bit of blood from an action essentials plug in I have will help polish it up a little.
Thanks everyone for your help, I’ve learnt alot trying to do this effect. That keylight plugin is marvellous.
I plan on having the little video shot and up on youtube in the next week….I’m now waiting for my bottle of blood to arrive 🙂
https://uk.youtube.com/user/Kie77

[Kieran Hood]

Wow, I’m playing with keylight now. What an amazing tool. This could be the way. Thankyou

[Kieran Hood]

Ach – not so smug anymore. I thought I had it, but my method meant the same bit of background is mapped to my eye.
Steep learning curve this….