… for Apple Motion

Tip #775: Examine and Alter Media Clip Properties

Larry Jordan – LarryJordan.com

Inspector > Media changes the character of the media itself.

The Inspector > Media pane for a selected clip in Apple Motion.

Topic $TipTopic

Have you ever selected a clip in Motion, then looked at the source media controls in the Inspector? Yeah, me neither. But there’s some cool stuff there. Take a look.

To show this pane:

  • Click Media in the Project pane.
  • Select the clip you want to review.
  • Open Inspector > Media (see screen shot).

This pane allows you to change:

  • Alpha (transparency)
  • Color space
  • Pixel aspect ratio
  • Field order (interlacing)
  • Frame rate
  • And more…

EXTRA CREDIT

Here’s an Apple Support page with more details.


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… for Visual Effects

Tip #785: A Good Green-screen Tutorial

Larry Jordan – LarryJordan.com

Quality green screen keys focus on lighting, background and separation.

Image from B&H green-screen video.

Topic $TipTopic

As this video tutorial makes clear, the worst thing you can say on set about a green-screen effect is: “We’ll fix it in post.” As this video tutorial from B&H makes clear, by the time you get a green-screen to post, it is often too late.

This video tutorial illustrates key concepts to improve the quality of green-screen work on set; from lighting to background to staging. While the entire video is filled with tips – and only runs about three minutes – the most useful are examples to help you pay attention to your lighting.

Here’s the link to watch.


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… for Visual Effects

Tip #784: NewBlueFX Titling Tutorials

Larry Jordan – LarryJordan.com

NewBlueFX provides effects with an emphasis on titles

A sample title from NewBlueFX Titler Pro.

Topic $TipTopic

NewBlueFX is not well known on the Mac, but they’ve been creating effects for Windows systems for years.

They are best known for titling and effects, with both Titler Pro and Titler Live. They currently support Premiere, Avid, Edius, VEGAS and their own application: NewBlue Titler Pro 2+.

If you want to see what’s possible, and how to create it, check out their tutorials page. NewBlueFX has a wealth of plugins, templates and tutorials to bring your titles to the next level.

Here’s a link to learn more.


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… for Visual Effects

Tip #783: Red Giant Tutorials

Larry Jordan – LarryJordan.com

RedGiant Product Quick Tips are a fast way to see what’s possible.

A RedGiant Product Quick Tip: Quick & Awesome Titles

Topic $TipTopic

Wondering how to create a specific effect? Or hoping to find a faster and easier way to create the effect you see in your imagination?

The team at RedGiant has published a ton of tutorials covering their products, along with usage tips for nine different host applications (Avid, DaVinci, Final Cut, and Premiere, to name four).

What’s especially helpful is their series of Quick Tips – short video demos that illustrate cool effects you can create without a lot of extra work using their tools.

Here’s the link to learn more.


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… for Codecs & Media

Tip #782: Compare Proxy Files to Source Media

Larry Jordan – LarryJordan.com

Proxy files are optimized for editing and small file size.

Topic $TipTopic

Here’s a table that compares proxy file storage and bandwidth requirements to source media.

Keep in mind that unlike H.264, proxy files are optimized for editing. H.264 is often difficult to edit on older or slower systems.

Data Rates and Storage Needs for UHD Media
4K Media Frame rate Bandwidth Store 1 Hour
H.264 30 fps 18.75 MB/sec 67.5 GB
ProRes Proxy 30 fps 22.75 MB/sec 82 GB
ProRes 422 30 fps 73.6 MB/sec 265 GB
BMD RAW 3:1 30 fps ~175 MB/sec 630 GB
R3D Redcode 4K 4:1 30 fps 215 MB/sec 774 GB

Notes:

  • H.264 specs based on JVC specs
  • ProRes specs from Apple ProRes White Paper
  • Blackmagic specs interpolated from Blackmagic Design website
  • Red redcode specs from Red website

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… for Codecs & Media

Tip #781: What is Debayering?

Larry Jordan – LarryJordan.com

Virtually all cameras only record partial images. Debayering is required to make them whole.

A camera sensor Bayer pattern (Image by en:User:Cburnett – Own work, CC BY-SA 3.0)

Topic $TipTopic

Debayering, or demosaicing, is a digital image process that reconstructs a complete image from the incomplete color samples recorded by virtually every video camera.

In this screen shot, notice that the camera records twice as many green pixels as either red or blue.

Wikipedia writes: Most modern digital cameras acquire images using a single image sensor overlaid with a color filter array (CFA). This has alternating red (R) and green (G) filters for odd rows and alternating green (G) and blue (B) filters for even rows. There are twice as many green filters as red or blue ones, catering to the human eye’s higher sensitivity to green light.

Since each pixel of the sensor is behind a color filter, the output is an array of pixel values, each indicating a raw intensity of one of the three filter colors. (The camera sensor itself only captures luminance data.) Thus, an algorithm is needed to estimate for each pixel the color levels for all color components, rather than a single component. Demosaicing is part of the processing required to render these grayscale images into a viewable image.

EXTRA CREDIT

Many modern digital cameras can also save images in a raw format allowing the user to demosaic them using software, rather than using the camera’s built-in firmware.

Here’s a Wikipedia article to learn more.


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… for Codecs & Media

Tip #780: What’s a Proxy File?

Larry Jordan – LarryJordan.com

Proxy files are a tradeoff: faster performance with lower image quality.

The proxy file (green) has 1/4 the pixels of the source media, but with the same geometry. The pixels aren’t bigger, just fewer.

Topic $TipTopic

At its simplest, a proxy file is a “stand-in,” a proxy, for another file. However, when it comes to media, a proxy file is a smaller version of the original file.

This reduced size provides several benefits:

  • Smaller storage requirements
  • Slower bandwidth requirements
  • Ability to run on older or slower systems

However, while smaller files are a good thing, the real challenge is to create proxy files that provide a similar geometry to the source file, otherwise, any effects you create with them will need to be altered when you switch back to the source media.

For this reason, proxy files, by intent, are 1/4 the size of the source image but with the same aspect ratio as the source file. This decreases file size and bandwidth by 75%, but matches the geometry of the source.

The easiest way to create this is to divide each frame into a series of 4-pixel grids, then remove 3 of the 4 pixels in each grid. This means that a 4K (3840 x 2160) becomes 960 x 540. Often, many proxy files use 1280 x 720 because this is already a common video format.

While not providing the same image quality as the source media, the image is good enough to use for editing, until the time comes for final effects, color grading and output.


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… for Adobe Premiere Pro CC

Tip #772: A Preference for Faster Trimming

Larry Jordan – LarryJordan.com

These preference settings are off by default.

Trim preference settings in Premiere. Check the top box.

Topic $TipTopic

There is a trimming preference setting that can speed trimming your clips. However, it is off by default. Here’s what you need to know to turn this on.

Open Preferences > Trim and check the top box.

  • Allow Selection tool… This changes the cursor to the Ripple or Roll trimming tools depending upon where it is located relative to the edit point.

For example, hover the cursor near the Out and the cursor changes to a Ripple trim. Hover it over the edit point, and it automatically changes to a Roll trim. Near the In switches to the Ripple tool again.

When this option is not checked, hovering over an edit point displays the Trim In/Out tool, which is less helpful than Ripple and Roll.


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… for Adobe Premiere Pro CC

Tip #771: Add Keyboard Shortcuts for Marker Colors

Larry Jordan – LarryJordan.com

These shortcuts can add new markers or change existing ones.

The Add and Set marker color options in the keyboard shortcuts panel.

Topic $TipTopic

A new feature in the May, 2020, update for Premiere is the ability to add keyboard shortcuts for marker colors. This means that we can easily color-code new or existing markers to help us organize our projects.

However, by default, these keyboard shortcuts are not assigned. Here’s how to enable them.

  • Open the Keyboard Shortcuts panel.
  • Search for “marker”
  • Scroll down to the Title section.
  • Add keyboard shortcuts for the colors you want to use.
    • Add [color] Marker. Changes the marker color and adds a marker with that color at the position of the timeline.
    • Set [color] Marker. Changes the marker color of an existing – and selected – marker.

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… for Adobe Premiere Pro CC

Tip #770: Enable Automatic Project Saving

Larry Jordan – LarryJordan.com

Save projects automatically whenever autosave creates a backup.

The Auto Save preference with automatic project saving enabled.

Topic $TipTopic

A hidden feature in Premiere is the ability to save projects whenever Auto Save creates backups. However, this feature is off by default. Here’s how to turn it on.

Open Preferences > Auto Save and check the bottom checkbox: “Auto Save also saves the current project(s).”

Now, when Premiere creates a backup of your current project, it will also save that project.

EXTRA CREDIT

Auto Save is designed to save every 15 minutes (or whatever time you’ve entered for “Automatically Save Every”). However, Auto Save does not run if nothing has changed in the project during that time.

Keep in mind that this should NOT substitute for you saving your work. This feature simply makes sure that, if a crash occurs, you don’t lose everything. For this reason, don’t rely exclusively on Premiere to save your work. Cmd/Cntrl + S is still your best friend.


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