[Kieran Hood]

Thanks for your help guys. I’m behind on what you all know…alpha inverse matte…keylight, I know not what you mean.

However, I’ve come up with a way all by myself, I’m very chuffed with myself, a little smug even.

I’ve done this:
Null object (tracking motion)
Background layer (drew the mask with add property)
Footage

This seems to have done the trick…I’m most pleased 🙂 I’ll post up my video when it’s done….I’m just waiting for some fake blood to arrive 🙂
Thanks again for your help…I’m still learning how vast AE is.
https://uk.youtube.com/user/Kie77

[Kieran Hood]

Ok, with your help I’m making progress. I replaced null object 2 with a black solid, so I now have this:

Null Object (tracking data)
Black solid (mask drawn with subtract property, it moves with the green eye patch)
Footage (I’ve chosen alpha matte to black solid 1 as it makes the hole in the eye)
Background

This is a step forward, the hole now moves with the eye, but the whole footage moves too. So the hole footage is swinging around….but the hole is remaining on the eye.
It’s like I need to pin down a layer from moving and just have the mask move.
Am I making any sense? 🙂

[Kieran Hood]

Thanks for your help guys.
I’m still not getting it…so, I have

Null Object (this is the track movements)
Footage
Null object2 (this has the mask which follows the green eye patch, i set the mask to subtract)
Background

I’ve tried moving null object 2 above the footage too…I just can’t see how to make the subtract property of the mask go through the footage.

What does inverse matte do? I gave Null object2 (the mask that follows the eye patch) an alpha inverted matte from the drop down, but didn’t see any change. Is this what you mean?

Should I be using a null object to follow the eye patch in the first place?

Thanks again for all your help

[Kieran Hood]

Ah – that’s what I thought…I shall correct this immediately 🙂

[Kieran Hood]

My God you’re right! How did I never notice this? I’ve always thought it was ‘sabre’.

Thankyou for pointing out the errors of my ways, I shall atone for my sins at once…..

[Kieran Hood]

Thank you for that kind sir. Much appreciated.