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As you have no doubt gathered, Final Cut Pro X contains a feature called Background Rendering. This simply means that if you leave your computer alone for X number of seconds then the application will begin rendering any effects or video that need to be rendered. It does this in the background so that you can continue working. Now at the time of its release this was actually a pretty revolutionary addition, since the other top editing programs still did not contain such a feature. In most other applications when you render, you have to commit all the system's resources to it.
Final Cut's default background render time is set in preferences, so I'm going to go to Final Cut Pro and Preferences, and I come to Playback. As you can see, Background Render is on, and it says Start after 5 seconds. Now personally I think this timing is a little short. That's because if I'm designing titles or effects or whatever, and I'm still in the process of creating them or even just trying something out, then the program is going to begin rendering.
This can be kind of wasteful since it may render effects that you won't actually be using in your finished sequence if you're not done with them. Also you may not even need background rendering all the time if you have got a robust system, because its real-time playback can be quite good. So you can bump this number up. I think I will, so I'll go ahead and just type in "60" seconds. And if you're worried about drive space, you can always just turn background rendering off altogether and then manually render every time you need to.
I'm going to turn mine on for now. Speaking of Manual Rendering let's talk about that, there are two manual render settings, Render Selection and Render All. So I'm just going to come down to my 9.14 sequence, and let's just apply several effects, so it'll call for a render. I'm going to open up my video browser by pressing Cmd+5, and let's fit everything in by pressing Shift+Z, and we'll go ahead and select all of my b-roll here, and let's just give it a look, we'll give it a Bleach Bypass look, and I'll go ahead and double-click.
So now as you can see, all of these clips need to be rendered as indicated by the orange bar above them. They'll still most likely play in real time okay, but if I want to guarantee playback, I'll need to render, which creates new media files with the effects in place. But now that I set my background render to 60 seconds. It's actually not going to render for another minute. So if I want to force a render, I'm going to have to do this manually. I just come up to Modify, and then I have Render All or Render Selection. Render Selection is going to render anything that I have got selected in my sequence, so everything that I have outlined in yellow right now, whereas Render All is going to render anything that needs rendering in the timeline.
So you'll certainly need to use these manual options if you have turned off background rendering, or if you just want to trigger a render before the background render starts. You might want to remember these keyboard shortcuts, we have got Ctrl+R and Ctrl+Shift+R, All right, so I'll go head and render my selection, Ctrl+R. Now everything is going to start rendering. You can see here that the progress is going from 0 to 100%. If I'm ever curious as to this progress, I can click on this, and it will tell me exactly what's going on.
I'm going to go head and close this, and as you can see my orange line is disappearing, everything is rendering, and now I should be able to watch the sequence just fine. (video playing) Rendering is an important part of the editing process, and it's important that you make some decisions about this in order to streamline your workflow. Also just to reiterate, in this movie we talked primarily about executing renders, later in the course when we discuss media management, we'll talk about deleting our unused render files.
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