- [Instructor] The playback controls
are used to play, stop, loop,
and single step through your shot.
There are even some keyboard shortcuts
that you'll want to know about.
So let's start with the forward here
and the reverse controls over here.
So I can go play forward and stop.
Notice that the play button becomes its own stop button.
So I can go reverse, stop.
Now the forward, reverse, and stop buttons
are also keyboard shortcuts J, K, and L.
These are the same ones used in most editing systems.
However, for them to work,
the cursor must be on the timeline
or up here in the viewer.
So I can go L to play forward, K to stop,
J to play backwards, K to stop.
We also have single frame control.
Single frame forward, single frame reverse,
and you have keyboard shortcuts
are the left and right arrow keys.
So right arrow, right arrow, left arrow, left arrow.
This is your jump to the first frame
and jump to the last frame buttons.
Now these are key frame buttons here.
Jump forward to the next key frame,
jump back to the last key frame,
but to see them,
we have to have key frames up here on the timeline.
So let's open up our transform node with a double click,
and we do have key frames.
You can see them up here,
the little blue ticks on the timeline.
Those would be easier to see
if I clear my playback cache.
There you go, okay.
Key frames, blue tick marks.
So let's say that my playhead is here,
and I can go forward to the next key frame
or back to the previous key frame.
This is the skip number
for jumping forward or backwards 10 frames.
I'll edit this number here,
which is the current frame number.
I'll type in a 10, which jumps the playhead to frame 10.
And now I can go forward 10, you see, 20,
forward 10 to 30, forward 10 to 40.
And you can change this number
by simply selecting it and typing in a new number.
Okay, now I'm going back five and back five.
Now that we've seen how the playhead controls work,
we're ready to learn about Nuke's timeline.