All language subtitles for 3. Manipulating Key Frames

So let's take a quick minute to talk about selecting keyframes,

and if we look at the comp,

I've set up a very simple situation here where we have a still image of earth

and we're just scaling that image up across 100 frames.

So I've got a couple of different keyframes in there just to use as an example,

and we'll go over to the Dope Sheet.

Now in the Dope Sheet,

you'll see each one of those keyframes represented by these little tick marks,

and if you hover over them, this little X appears,

and you can select these a couple of different ways.

If you left-mouse button click,

you can marquee select any one of these keyframes and just

move them around with the left-mouse button.

You can marquee select over two sets, three sets,

you can just marquee select whatever keyframes you want and move

them around in the timeline however you'd like.

It's also important to know that if you have one set of keyframes selected,

and you want to grab another set of keyframes,

you can just hold down the Shift key on your keyboard

and select whichever frames you want.

Also,

you should take a look at this little box that pops up at the

bottom to show you the selection of the keyframes.

This lets you scale the frames.

If I have multiple sets selected I can stretch and scale these out,

or I can move them as a whole.

So if you go to the edge of this little box,

the icon's going to change and it's going to let you scale these frames.

So if I don't want to have all three of these sets selected,

I can just hold down the Shift button and reselect these frames and it will

deselect them and remove them from the selection set.

So it's pretty simple here.

You can just select single frames, you can select all the frames,

you can change your selection by holding down the Shift button,

and you can use this manipulator box to just scale the whole thing.

So if we scale all these frames down and we play back this animation,

it's going to happen much, much faster.

If we scale this out, the animation's going to happen much, much slower.

Now just take a second to notice that these keyframes represent values.

So if I'm on frame 65,

the value of this keyframe is a width scale on the transform that's set to.

4290, and that's the value that we're moving around.

So right now the value of the.

42 is located on frame 65, but if I move it to frame 20,

that same value is going to appear on frame 20 now.

So, these keys are specific values that you're just sliding around in time.

So let's say I go to frame 124 and the value of my scale on frame 124 is.

816 as we see right here,

but let's say I want that same key to happen on frame 90.

Now, you do that by coping and pasting frames,

and what you can do is you can just select the frames that you want,

hit Ctrl+C on the keyboard,

and position the cursor on the frame that you want to paste those frames on,

and hit Ctrl+V, and there you have a pasted key.

Now it's important to know that if these keys become unselected,

then it won't paste the keys into the timeline.

So if I select this, and I paste these keys in using Ctrl+C and Ctrl+V,

if these keys get deselected and I move to a spot on the timeline

where I want to paste them and I hit Ctrl+V,

it will not hold that information, it will just error out.

So just make sure the keys that you want to copy are selected,

hit Ctrl+C, and then hit Ctrl+V,

and it'll paste those keys wherever you have the timeline bar selected,

and if we want to get rid of those keys,

we can just select the keys we want to get rid of,

and hit Delete on the keyboard, and it'll delete them right out.

In the next clip, we'll take a look at editing movie files in the Dope Sheet.

We can slip movie files like you would in an editing package,

we can trim clips, we can even lengthen animation by holding frames,

looping, bouncing, or inserting black frames into the animation.