Replies – Forums – Alex Cameron

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Alex Cameron
November 25, 2013 at 11:17 pm in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

Hey Conrad,

I’ve been able to make huge strides based on the the advice you’ve given me, so thank you very much for your time. I’ve got the footage doing what I want in Nuke and After Effects, now I think it’s time to add a little bit more realism.

Because the footage is hand held that means the light is constantly shifting around. While the effect looks okay as it is now it’s missing the changing light over the tracked area which I think would help really sell the effect.

My question is: do I add in a 3D light in After Effects or should I do it in Nuke?

My gut is telling me that Nuke is the better option since I can actually do a camera solve to help recreate the room in 3D.

However, I’m unable to just export the effect without the background. Here’s what I mean:

The Classic Color Burn on the top layer only works if that bottom layer is visible. If I turn it off it won’t work. Which has be in a bit of a jam when it comes to adding a light into the scene in both Nuke and After Effects…
Alex Cameron
November 20, 2013 at 3:34 pm in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

Great, thank you Conrad. I’ve seen a few tutorials regarding object removal in Nuke, are there any you think I should check out?
Alex Cameron
November 19, 2013 at 5:14 pm in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

Hey Conrad, I played around with Nuke last night and it worked like a charm. I inverted the corner pin data then exported the footage as a tiff sequence over to After Effects, applied the effect, then rendered a tiff sequence and imported it back into Nuke.

Does that seem inefficient to you?

Also, I’ve never played with rotopaint in Nuke, do you think it’s possible to remove my hand from the footage to create a clean plate or is it too big for object removal?

Thanks for your help!
Alex Cameron
November 19, 2013 at 1:01 am in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

I figured I was missing something obvious in Mocha. I looked around the program and still can’t find where to do it. Is it under the stabilize tab?

Thanks for your input!
Alex Cameron
November 18, 2013 at 6:42 pm in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

Excellent, I’ll try this out with Nuke then. I’m assuming I can just attach a write node to the stabilized footage so I can toss it back to After Effects and achieve the effect?

Thank you Conrad!
Alex Cameron
November 18, 2013 at 6:04 pm in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

Yes! This is what I’m looking for. Do you know if Nuke be able to pull this off? What would I even begin googling for, “reverse corner pin technique”?
Alex Cameron
November 18, 2013 at 3:11 pm in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

Dave, I went back and edited my original post. I shot some quick footage to give a crude demonstration of what I’m looking for.
Alex Cameron
November 17, 2013 at 8:29 pm in reply to: How can I extract and “flatten” footage that’s been tracked with Mocha to work with it directly in 2D?

Nah, I’ve used AE for quite a while but this is my first project that involves tracking.

The hand gets in the mix because it’s going to touch the wall, as the hand gets removed we see that there’s an imprint of the hand on the wall.

I’m definitely not thinking about hand keying as that would indeed be a nightmare, that’s why I wanted to use green screen. The blue thing is just to highlight the tracked area. I should have made it green as that’s what’s going to be the rough size of the green screen patch.

What I want, in the end, is to have a patch of green screen on the wall. Track it. Take that portion of the green screen, key it out so it’s just the hand and replace it with the hand imprint footage as the hand moves out of frame. It would be infinitely easier to key out and work with if I could actually look at that tracked section in 2D as opposed to having it move all over the place as it does right now.
Alex Cameron
July 18, 2012 at 6:58 pm in reply to: After using Merge Clips in CS6, the resulting file now has two audio tracks

So according to Adobe’s website: https://help.adobe.com/en_US/premierepro/cs/using/WS2bacbdf8d487e582-73725e6a12e5a6165d0-7fff.html

At the very bottom they list limitations, one of which being “Merged clip audio results in mono track audio only.”

Which I was familiar with before posting this. It doesn’t seem however that the two tracks are mono it looks like they are two separate stereo tracks. If I mute one I still get audio in both speakers even though I muted the “right” track.

Here’s what they look like in the audio mixer

The original only has the left most track.

I guess the only thing to do is just deal with it or render out each clip uncompressed to have that single audio channel.