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In this module, we'll take a look at the last piece of the interface.
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Even though it's the simplest, it's also one of the most important.
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It's the timeline, and it transports us around our animation as we work.
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The timeline is located at the bottom of the Viewer panel,
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and it allows us to adjust the playback settings,
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including the frame range, selecting the playback mode,
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and locking the view panel's playback range.
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This little orange triangle is the frame indicator.
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You can drag the frame indicator along the timeline to quickly
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skip to the specific frame you want to view.
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So if you left-mouse button click on this little guy,
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you can just grab him and drag him to any frame you want along the animation,
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and jump right to that frame.
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Now when you do that,
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the current frame will appear in the middle of the timeline here.
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You can use this frame indicator in the middle of the timeline to
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enter a specific frame you want to jump to as well.
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So if I go down here, I can just put frame 50 in here,
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and we'll jump ahead to frame 50.
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This frame indicator also takes simple equations,
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so if you have to jump ahead 25 frames or jump back
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25 frames from your current frame,
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you can just type in +25 or -25 into this field and
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it'll do the operation for you.
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So if I hit -25, it's going to jump that cursor back 25 frames on the timeline.
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So to go back to where we were, I'll do +25,
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and that's about as simple as it gets.
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If you put an equation in here like 10+20,
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it won't do that,
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it'll only be able to handle moving the cursor negative frames or
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positive frames in either the left or the right direction.
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I should take a second to point out too that NUKE by default is
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automatically adjusting the timeline of your Viewer panel to show the
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frame range defined by your project settings.
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So if you see down here that the frame range is between frames 1 and frames 200,
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it's drawing that information from your project settings.
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So at any time if you're in the Node Graph,
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you can hit the S button and it'll bring up the properties for
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your entire workflow in the Properties panel.
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And down here we have a frame range that's 1-200,
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so if I put 300 in here,
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NUKE is going to automatically adjust the timeline to
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be a frame range of 1-300 instead.
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If there's a specific piece of animation we want to zoom in on,
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you can just right-click down here in the timeline and drag a cursor out,
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and NUKE will automatically zoom into the frame range you have defined.
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If you want to zoom in even further,
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you can just grab it and zoom in even further.
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Now if you want to get back out to the global view again,
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you should know that there's a dropdown menu right
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here where this word Visible is.
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If I click on this, it gives me a couple of options: Global,
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Input, In/Out, and Visible.
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So right now it's just showing us the visible range,
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and that's the user defined range that we just zoomed in on.
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If I go back to Global,
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it's going to reset the slider back to the global settings,
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and like we just said, the global settings are defined by the Properties menu.
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Likewise, we can set this to the Input range.
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So if I select Input, it's going to reset the timeline to be the Input range,
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and that is basically, if you have a Read Node in your scene,
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or if you have a Read Node selected,
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it's going to adjust the timeline to be the amount of time
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that's contained inside that Read Node.
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And that of course brings us to the next option, which is In/Out.
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So if I select In/Out,
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basically it's going to give us a frame range that's
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defined by our ins and our outs, and that brings me to these two buttons here.
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This button is an in button and this button is your out button,
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and we can define what frames we want to be our in and out
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buttons by selecting a frame and then hitting that in
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button to drop the in marker.
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And then if I go to frame 150, for example,
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I can hit the out button and clip it in the out range.
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So if we skip back to the Global range,
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you'll see that these orange bars have appeared where
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we've defined our in and our out frames,
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our in frame being 50 and our out frame being 150.
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So when you've sequestered a frame range like that,
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and you use this VCR buttons at the bottom of the Display panel,
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your Viewer is going to be working within that specified range.
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So if I hit Play, and I do playback within this range,
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it's going to stop at my out just like that,
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and repeat where my in is.
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So right now we've just basically defined a temporary
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frame range in which we're working.
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This becomes important in production because there might be a
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specific set of frames that you want to look at over,
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and over, and over again to see glitching animation,
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and if you can just tell NUKE to calculate those specific frames,
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you can play them back in a loop like this,
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and modify your work, and play them back,
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and modify your work until you get the animation
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the way that you want it to look.
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So I'll stop this and I'll point out this little button
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here that's now been highlighted red.
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This little button is just to tell us that we've
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locked the Viewer in a playback range.
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So whenever we define an in and out and lock our Viewer within a playback range,
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this button's going to highlight, and we can just turn that off by clicking here,
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and now our playback will go beyond the range that we previously specified.
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And you can always just bring that back by clicking on this
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and going back to the in and out mode.
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I'd also like to point out this menu here,
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which lets you toggle between frames and timecode.
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So if you're more comfortable working in timecode,
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you can just set this option to timecode,
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and you'll get your timecode on the timeline instead of frames.
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If you're more comfortable with frames, just stick to the frame range.
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We also have these incrementing buttons down here,
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and they just let you skip forward and backward in the timeline
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by however many frames you want to define.
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So if I'm on frame 150 and this is set to 10,
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this is just going to bounce between intervals of 10 on the timeline.
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I can set this to 50 frames and it's going to bounce by
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increments of 50 on the timeline.
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So now let's take a look at flipbooking,
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and flipbooking just lets us view a range of frames in real time.
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So it's going to render out those frames that we want to
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take a look at and it's going to play them back as a movie
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file that plays it real time.
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When we hit Play on the timeline down here,
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you can see that this is far from real time because it's
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calculating the frames as it goes, and as your comps get much bigger than this,
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that speed will slow down as well.
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So if we want to see these frames played back at 24 frames per second,
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which is a standard for animation, we can flipbook things,
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and we do that by clicking on this button here,
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and this will bring up your flipbook settings.
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So if we take a look at these flipbook settings,
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this is going to be our default flipbook,
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we're going to be rendering out Viewer1,
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which corresponds to our Viewer1 right here.
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You can click this button on or click this button
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off to use a Region Of Interest, which we talked about in a previous clip.
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So if we want to,
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we can render out a single range of pixels that we define with the ROI button.
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This is our frame range, so if we want to see between frames 50 and frames 100,
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we select that there.
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Rendering the background's useful sometimes,
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that just means that it's going to run this flipbooking
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process in the background as a separate thread.
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You can check that on or not, that's up to you.
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If you have an Audio Node in your scene,
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like we've looked at in previous clips and previous modules,
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you can select it here.
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This current comp doesn't have one so we'll just say None,
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and I'm going to hit OK here, and now it's going to render those frames.
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So I'm going to come back in a second when this render's done and
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we're going to take a look at the flipbook.
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We're back, and we have our flipbook, and if you take a look at it,
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it's playing back this CameraShake Node in real time.
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So this is what our animation currently looks like.
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So that's basically all you have to know about the Viewer.
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In the next module, we'll take a look at doing a real live NUKE comp.
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We're going to take this image of earth and we're
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going to put it together for you.
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We're going to put it on top of a star field,
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and we're going to use some nodes that we haven't seen before,
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and just put together a general comp so you can see
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what a workflow looks like in NUKE, and get started.
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