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Rendering intelligently

From: Avid Media Composer 6 Essential Training

Video: Rendering intelligently

If there are many effects in one location, especially multiple effects stacked within a composite, it's possible you may need to render portions of your sequence. Rendering effects simply means that you are creating, or rendering, video files of the effect's result. In this movie, we'll take a look at when and how to render effects, so that you can play back any amount of video streams. So here we are, again, with our big stacked composite, and as we saw in the previous movie, we start dropping frames downstream here.

Rendering intelligently

If there are many effects in one location, especially multiple effects stacked within a composite, it's possible you may need to render portions of your sequence. Rendering effects simply means that you are creating, or rendering, video files of the effect's result. In this movie, we'll take a look at when and how to render effects, so that you can play back any amount of video streams. So here we are, again, with our big stacked composite, and as we saw in the previous movie, we start dropping frames downstream here.

I've also added a Timewarp effect, and I've made it go really, really fast, so it turns into a blue-dot effect. So we really do have to render two locations for this to play back in real time. Now, let's talk about when we would want to do this. If you export a sequence, the effects are automatically going to render when it creates the video file, so you don't need to render the effects when you just export a QuickTime. However, if you're going to tape, you're going to need to render your effects, because you need to play back at full quality.

So you'll need to render all blue-dot effects. I have one right here. And if I wanted to render, I'm just going to select the effect, and then come to my Render Effect button above the Timeline, and I choose which drive to send it to, and I'll click OK. This renders my motion effect, like so. So blue-dot effects always need to render when you're going back out to tape or when you just need to screen it.

Now, the other instance in which you would need to render is when your sequence is not playing back in real time. So if I play this out, let's go ahead and get some diagnosis bars down here in my time code track to see exactly what's going on. Ideally, we would be switching to full quality if we were going out to tape, but I'm just going to demo this in Draft Quality for now. So I'm going to go ahead and play this through by pressing spacebar.

So we had some feedback that our drives were being taxed right around here, and then we just started dropping frames. So from here on, we were having trouble, and we're going to need to render that in order for that to play back in real time. So one of the most common errors when people are rendering effects is they simply put an in point at the beginning of the sequence, put an out point at the end of the sequence, then come up to Clip and Render In/out. This is a terrible idea.

This wastes time and it wastes drive space. Let's talk about why. I'm going to go ahead and clear my in and out and I want to talk about Avid's top-down rendering method. When Avid renders V8, it also renders V7, V6, V5, V4, V3, V2, and V1. So when I render this effect, it's actually rendering the composite result of everything below it. Same thing for V7. When I render V7, it renders V7 and below. Same thing for 6, same thing for 5, and so on.

So if I render all of my effects in the sequence, it is extremely redundant, it's wasting space, and it's wasting your time; therefore, we're going to use the diagnosis bars in the time code track to render intelligently. To do this, I'm just going to add a video track, Ctrl+Y or Command+Y, and I'm going to come into my Effect palette, and I'm going to go to the Image category, and I'm going to apply a mask. Now, where am I going to apply this mask? The mask is just an effect that I can render so that I can render everything on V9 and below.

Therefore, I'm going to apply my mask from this point in the timeline on over. So I'm going to monitor V9. What I want to do is at this point, slightly before, I'm going to apply an edit on V9. Let me just deselect V8 through V1 by Shift+Dragging through my tracks. And I'll add an edit, and I will drag my mask effect over on this portion of V9, and this is the only effect I'm going to render.

I'm going to ignore everything else because all of the tracks on V9 and below are going to be rendered when I render this mask. So remember how many frames were dropped and then when we render this, Render Effect > Data drive. It's going to take just a little bit of time. And we'll go ahead and play through this, and let's see if we solved our problem. I'm going to go ahead and press the spacebar to play.

As you see, everything played back in real time, and we have absolutely no warning bars in our time code track, which means that there's no problem in the spring buffer, everything is filling up just fine, and Avid is playing back in real time. So I definitely encourage you to diagnose the areas in your sequence that need rendering, and if you're just editing, you of course have the Video Quality menu and the Format tab that you can change. But if you do need to render, make sure to render intelligently by diagnosing where the problem is occurring and then finding a targeted way to render that portion of the timeline.

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This video is part of

Image for Avid Media Composer 6 Essential Training
Avid Media Composer 6 Essential Training

87 video lessons · 14488 viewers

Ashley Kennedy
Author

 
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  1. 3m 55s
    1. Welcome
      1m 16s
    2. Using the exercise files
      2m 39s
  2. 22m 54s
    1. Touring the Select Project window
      4m 45s
    2. Exploring bins
      4m 23s
    3. Customizing user settings
      3m 36s
    4. Setting up and organizing a project
      5m 57s
    5. Saving and backing up the project
      4m 13s
  3. 57m 27s
    1. Touring the Composer Monitor and the Timeline
      2m 29s
    2. Touring the Edit interface
      5m 6s
    3. Splicing shots
      7m 43s
    4. Splicing non-linearly
      2m 43s
    5. Overwriting shots
      4m 35s
    6. Removing shots using Extract and Lift
      4m 38s
    7. Using Segment mode (Extract/Splice) to switch shots
      6m 37s
    8. Using Segment mode (Lift/Overwrite) to move shots
      6m 31s
    9. Using Extract/Splice and Lift/Overwrite together
      3m 32s
    10. Manipulating the Timeline directly
      4m 34s
    11. Creating subclips and subsequences
      3m 48s
    12. Adding multiple video and audio tracks
      5m 11s
  4. 23m 28s
    1. Understanding trimming
      3m 19s
    2. Performing single-roller trims
      5m 15s
    3. Performing dual-roller trims
      3m 54s
    4. Using Ripple Trim and Overwrite Trim
      5m 4s
    5. Understanding sync
      3m 17s
    6. Solving sync problems
      2m 39s
  5. 54m 26s
    1. Navigating with JKL
      3m 26s
    2. Using navigation shortcuts
      4m 47s
    3. Using the Command palette
      6m 4s
    4. Customizing the Timeline
      4m 54s
    5. Using bin layouts
      3m 49s
    6. Using workspaces
      6m 41s
    7. Sorting and sifting clips
      5m 57s
    8. Using the Find tool
      5m 13s
    9. Using markers
      5m 54s
    10. Using PhraseFind
      3m 21s
    11. Using ScriptSync
      4m 20s
  6. 20m 42s
    1. Trimming with JKL
      4m 53s
    2. Performing Slip edits
      6m 1s
    3. Performing Slide edits
      5m 39s
    4. Performing Replace edits
      4m 9s
  7. 27m 17s
    1. Reading audio levels and pan
      5m 42s
    2. Using the audio mixer
      10m 1s
    3. Keyframing audio
      7m 6s
    4. Recording audio adjustments on the fly
      4m 28s
  8. 55m 1s
    1. Using Quick Transition effects
      4m 6s
    2. Using the Transition Manipulation tool
      3m 12s
    3. Using the Effects palette and the Effect Editor
      6m 1s
    4. Keyframing segment effects
      5m 30s
    5. Nesting and auto-nesting
      5m 54s
    6. Saving effect templates
      3m 23s
    7. Building basic composites using vertical effects
      4m 7s
    8. Using the picture-in-picture (PIP) effect
      5m 14s
    9. Using the Color effect
      4m 24s
    10. Creating basic motion effects
      6m 55s
    11. Using Timewarp
      6m 15s
  9. 11m 48s
    1. Understanding system performance
      6m 13s
    2. Rendering intelligently
      5m 35s
  10. 26m 44s
    1. Analyzing footage for problems
      2m 27s
    2. Using the Y-Waveform monitor to set whites and blacks
      7m 16s
    3. Using the RGB Parade to correct color casts
      5m 50s
    4. Using the Vectorscope to improve skin tones
      5m 34s
    5. Using auto color correction
      5m 37s
  11. 30m 10s
    1. Formatting and enhancing text using Avid Marquee
      5m 32s
    2. Using Marquee to apply shapes and gradients
      5m 18s
    3. Using title templates
      3m 45s
    4. Bringing the title into Media Composer
      3m 54s
    5. Revising the title
      2m 17s
    6. Creating rolling and crawling titles
      5m 14s
    7. Using AutoTitler
      4m 10s
  12. 32m 37s
    1. Importing files
      6m 47s
    2. Linking to files using AMA
      3m 36s
    3. Linking to hi-res stills
      5m 59s
    4. Using the Avid Marketplace
      2m 50s
    5. Using the Capture tool
      5m 19s
    6. Capturing footage
      3m 41s
    7. Batch capturing
      4m 25s
  13. 12m 58s
    1. Deleting material from the bin
      5m 29s
    2. Understanding the Media tool
      4m 46s
    3. Deleting unreferenced clips
      2m 43s
  14. 17m 35s
    1. Preparing your sequence for output
      5m 44s
    2. Performing a digital cut
      5m 26s
    3. Exporting your sequence as a file
      6m 25s
  15. 19m 2s
    1. Solving offline media
      6m 48s
    2. Re-linking media
      3m 0s
    3. Resetting Avid settings
      5m 9s
    4. Using the Avid Attic
      4m 5s
  16. 44s
    1. Additional resources
      44s

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