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Hole in my head..help me please
Hi guys,
I’m trying to create a hole in my head effect and it’s driving me crazy. I posted a week or so ago, but I’ve still gotten no further.
I’ve shot the footage, I have a green patch over my eye that I need to mask out and reveal the empty background layer with.
I’ve tracked the green eye patch and saved it as a null layer, but now what do i do?
I basically need a mask to follow that track of the eyepatch and reveal the background.
Can anyone tell me how best to do this?
I medded with trying to keylight it instead, which is a great tool for knocking out backgrounds, but not for this.Any help would be much appreciated. I’m nearly at the point of actually drilling my own eye out to get the effect 😉
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5 Replies
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if you were going to use a mask to begin with, and track the footage, there was really no reason for the green eye patch.
since you used the green eyepatch, why not use keylight to key the area out?
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Have to agree with the above, you put the green for a reason, just key it out.
The only problem with this may be if you are working on an outdoors shot with lots of green in the background. If that’s the case just mask the general area around the face prior to keying it to be sure to only pick up the intended fields of green.
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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 -
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)
BackgroundIt’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.
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It looks okish I guess….not bad for a 1st effort right?
https://www.youtube.com/watch?v=zCvrCNIFPaM
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