Join Ben Brownlee for an in-depth discussion in this video Taming the power of the Überkey, part of mocha 3 Essential Training.
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Whenever you need to adjust a value or adjust the control point across the range of the timeline without having to change a whole range of key frames, then the uber key is for you. And we can turn the uber key on in the key controls by clicking on the U with the umlaut. There we go. So, this will show up blue. So let's see what this does. I'm going to create a new shape. Just a very simple shape that we can see, and I'm going to key frame it. Again, very simply. So it's going to get bigger and then we'll make it go smaller again.
There we go, so now it's getting bigger and smaller. Lets turn off visibility on all the other layers shall we? So we're just focused on this one. So I have three key frames there, one in the first frame, one in the end frame, and one somewhere in the middle, frame 33. So lets say I need to expand this out across the entire range of the clip. Without the uber key, I'd have to go to every single key frame and just go to each one of them here, and just expand things out by hand.
Go to the last one as well. And so that's expanded up, and let's take a look there, so we've got a much bigger shape now. Now with the uber key turned on, you can see that my icon changes, with small arrows pointing both left and right. So now if I make a bigger change, let's change this up so instead of being a square, it's more diamond-shaped. And let's look at what's going on here. You can see it's now offset all of my key frames the same distance. And as to show you that one more time, let's just bring this one over all the way to the left here, and you can see now, that's offset that key frame, again.
Turn my zoom windows off so you can see that. It's offset that keyframe again here as well. And this is useful for a number of different reasons. If I'm creating softness in my shape, I probably won't be doing that until fairly late in the process until I probably key framed most of the stuff in. So, going through a number of different key frames and changing either my inner points or my edge points can be quite a laborious task, but with the uber key, if I take my edge point now, and just lift this up. Let's change the, there we go, let's change the map color here.
You can see that now, I've got a consistent edge point going all the way through my shape. And I can remove that again, just by, if I just line that back up again there. Because I've still go the uber key turned on, that's going to line that up across all of my key frames. And the more you start to use Mocha, the more you'll switch between the uber key and the animate key for doing certain tasks. But it's also a very important that you come out of the uber key mode as quickly as you can, because what you don't want to do is you don't want to have made a big change using the uber key here.
So for example, well lets actually change that to both. I will make this one circular here. Here we go, just by right-clicking on the handle. So what we don't want to do now is we don't want to be going along and add, trying to add key frames with our uber key turned on. Because what we'll end up doing is actually just offsetting all of the previous key frames that we had. So really in that way potentialy ruining our work. So if you do want to animate, remember to come back into my animate mode here.
But if you want to make changes across the entire timeline, then the uber key is the right tool to use. Now at the time of recording, I'm using Mocha 3.2. The uber key let us do something quite interesting. And I'm just going to show this right here. I'm going to add another key frame. And I'm going to set an in and out range on my timeline. So with my range set, I'm going to come into my uber key and instead of being soft lines, I'm going to right-click and make sure that these are all very hard edges. So you can see that hard edges going between these two shapes.
Now, with my range set, let's see what happens if I go outside of that range. the uber key hasn't affected these particular key frames. Let's go outside there. So, these two key frames in the beginning and end, which were outside of my range there, haven't been affected by the uber key. So that's fairly interesting, and that looks as if it should be exceedingly useful because your uber key is only affecting things inside of our range. But this doesn't work entirely as you'd expect in version 3.2. So, let's see what happens if I just move this over to the right.
And as it, as you expect, both of the shapes within the range have been affected by that move. And what I'd also expect is the key frames outside of that range not to be affected, but let's see what happens. You can see actually the position has been changed over. The uber key in version 3.2, is not respecting the range we set inside the timeline. So when you have a number of key frames on the timeline, and you want to offset those values consistently, then just pop into the uber key mode, and you'll be able to do that very quickly, and very simply.
But just remember to come back into the animate mode when you're finished, otherwise the result might not be quite what you expected.
This course was created and produced by Ben Brownlee. We are honored to host this content in our library.
- Setting up preferences
- Understanding the planar tracker
- Creating your first project and first track
- Tracking rotation
- Tracking objects that move off-screen
- Using the Shear and Perspective tools
- Exporting tracking data to After Effects, Motion, or Final Cut Pro
- Creating a fast rotospline
- Creating complex mask shapes efficiently
- Correcting for lens distortion in your footage
- Generating a 3D camera solve