A Deeper Dive into Lumetri Color

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With the introduction of Premiere Pro CC 2015, Adobe altered how color correction can be handled within its editing application. The addition of the Lumetri Color effect puts a very powerful and intuitive color correction tool at the editor’s fingertips. I touched on some of its capabilities with SpeedGrade look files in a previous post, but now I’d like to dive into a deeper explanation of the features of Lumetri Color.

Previously in Premiere Pro CC 2014, the Lumetri effect was the conduit between grades in SpeedGrade and Premiere Pro. When you sent a sequence to SpeedGrade CC via Direct Link, the correction done there would show up back in Premiere Pro CC as a self-contained Lumetri effect applied to the clip or an adjustment layer. You could add more effects to the clip, but not edit the Lumetri effect itself in Premiere Pro. If you bounced back into SpeedGrade, then you had further edit control to change the settings from the earlier SpeedGrade session.

Now in Premiere Pro CC 2015, that previous method has been altered. When a Lumetri Color effect is added in the Premiere Pro CC timeline, that is no longer editable when you send it to SpeedGrade CC via Direct Link. Any grading added in SpeedGrade is in addition to the Lumetri Color effect. When you go back to Premiere Pro, those corrections will show up as a SpeedGrade Custom group at the bottom of the Lumetri Color effect stack. It is a separate, self-contained, uneditable correction applied to the clip. It can only be disabled if desired. In other words, Lumetri Color adjustments made in Premiere Pro are separate and apart from any color corrections done in SpeedGrade.

You can apply a Lumetri Color effect in two ways. The first, traditional way is to drag-and-drop the filter from the Effects palette (Color Correction folder) onto the clip or adjustment layer. The new, CC 2015 way is to select the Color workspace, which automatically reveals the Lumetri Color panel and the new, real-time Lumetri scopes. If you change any setting in the panel, it immediately applies a Lumetri Color effect to that clip. Color corrections can be made either in the Lumetri panel or in the standard Effects Control panel. If you don’t like the Lumetri Color effect or panel, you can still use the other color correction filters, like the Three-Way Color Corrector, Luma Curve, etc. These options have not been removed. (Click on any image for an expanded view.)

Master Clip Effects

df2715_lumetri_2_smSince CC 2014, Premiere Pro has enabled Master Clip effects. These are source-side settings and any change made as a Master Clip effect will affect all instances of that clip throughout the timeline. This is important with camera raw files, like CinemaDNG or REDCODE raw, because there are color metadata adjustments that can be made at the point where the raw image is encoded into RGB video. This is in addition to any color corrections made in the Lumetri Color panel, another filter, or in SpeedGrade. Previously these controls were accessed as a right-click contextual menu option called Source Settings.

With CC 2015, source setting adjustments have been moved to the Effects Control panel. At the top of the panel you’ll see the clip name appear twice – once as the master clip (left) and once in the sequence (right). The sequence portion has all the usual controls, like motion, opacity, time remapping, and any applied filters. The master clip portion will show all the source color controls. In the case of RED files, you’ll find the full range of RED controls made available from their SDK. For CinemaDNG files, such as from Blackmagic cameras, the options are limited to exposure, temperature and tint. You should make any necessary camera raw adjustments to these clips here, before applying Lumetri Color effects.

In addition to raw adjustments, Lumetri Color effects can also be applied as Master Clip effects and/or as timeline effects. The Lumetri Color panel also displays the clip name twice – master clip (left) and sequence clip (right). Generally you are going to make your corrections to sequence clips, however, some common settings, like adding a Log-to-Rec709 LUT might be best done as a Master Clip effect. Just understand that adjustments in the Lumetri Color panel can be applied to either or both sides, but that Master Clip effects will automatically ripple to other instances of that same clip elsewhere on the timeline. When you make changes to the sequence side (right), you are only altering that one location on the timeline.

The Lumetri Color Panel

df2715_lumetri_8_smThe Lumetri Color panel is organized as a stack of five control groups – Basic Correction, Creative, Curves, Color Wheels and Vignette. The controls within each group are revealed when you click on that section. You can enable or disable a group, but you can’t change the order of the stack, which flows from Basic out through Vignette. This control method and the types of controls offered are very similar to Adobe Lightroom’s Develop page. Its control groups include Basic, Tone Curve, HSL/Color/B&W, Split Toning, Detail, Lens Corrections, Effects and Camera Calibration. There are more groups in Lightroom simply because there are more image attributes available to be adjusted within a still photo image.

Basic Correction 

df2715_lumetri_3_smThe Basic Correction group is where you’ll perform the majority of your primary color grading. It includes a pulldown for input LUTs (camera-specific color transforms), white balance, tone and saturation. White balance adjusts temperature and tint. When you move the temperature slider it increases or decreases red versus blue in an inverse relationship of one to the other, with minimal change of green. Sliding tint alters red and blue together versus green.

Tone gives you control over the luminance of the image with sliders for exposure, contrast, highlights, shadows, whites and blacks. White and black controls move the top and bottom ends of the image up or down toward clip points, while the highlight and shadow sliders adjust the upper and lower portions of the image within the parameters set by the white and black sliders. The highlight and shadow sliders would be what you use to see more or less detail within the bright or dark areas of the image.

Creative 

df2715_lumetri_4_smThe Creative group is where stylistic adjustments are made, including the addition of creative “looks” (.look or .cube LUTs).  There are sliders for the intensity of the LUT, plus adjustment controls for a faded film effect, sharpening, vibrance and saturation. Finally, there are shadow and highlight tint controls with a balance slider to change the crossover threshold between them.

The faded film slider moves the black level you’ve established for the image higher for elevated blacks, but without opening any shadow detail. If you slide the control more to the right it will also compress the highlights, thus creating an overall flatter image. The sharpen slider blurs or enhanced detail in the image. Saturation uniformly increases the intensity of all chroma. Vibrance is a smart tool that increases the saturation of the more muted colors and has less change on the already-intense colors. The highlight and shadow tint controls shift the color balance of those portions of the image towards any area on the color wheel. The tint balance slider changes how much much of the image is considered to be the shadow or highlight range. For example, if you move the slider all the way to the left, then all of the image is affected by the highlight tint wheel only.

Curves

df2715_lumetri_5_smThe Curves group includes both standard RGB curves and a color wheel for control of the hue/saturation curve. The RGB curves offer four dots – white (overall control), plus red, green and blue for individual control over each of the R, G or B curves. The hue/sat curve is really a vector-based secondary color control and is akin to Lightroom’s HSL group. However, in the Lumetri Color panel a wheel control is used.

If you select one of the six color vector dots under the hue/sat curve wheel, then three control points are added along the circular curve. The center point is the color chosen and the points to the left and right establish a boundary. Pull the center point up or down to increase or decrease the saturation of the curve. Pulling the point left or right doesn’t change the hue of that color. The wheel works like a “hue vs. sat” curve and not as “hue vs. hue” when you compare it to the way in which other color correction tools operate. If I select red, I can increase or decrease the intensity of red, but pulling the control point towards orange or magenta doesn’t shift the red within the image itself towards that hue. You can also select one or more points along the curve without selecting a vector color first and make more extensive adjustments to the image.

Color Wheels 

df2715_lumetri_6_smColor Wheels is the next control group and it functions as an standard three-way corrector would. There are luma sliders and a color wheel for shadows, midtones and highlights. Moving the color wheel control effectively adds a color wash to that portion of the image instead of shifting the color balance. If you shift a wheel towards blue, the blue portion of the parade signal on a scope is increased, but red and green are not lowered in a corresponding fashion. Therefore, these wheels act as secondary color controls, which explains why Adobe placed them further down in the stack.

Vignette 

df2715_lumetri_7_smThe last group is Vignette and it works in much the same fashion as the Post-Crop Vignetting control in Lightroom. There are sliders for amount, midpoint, roundness and feather. In general, it acts more like a photographic vignette or one that’s a result of a lens artifact – and less like masks that you typically add in creative grading for vignette effects. Moving the amount slider controls the lightness or darkness of the vignette (yes, you can have a white vignette), but it only changes the outer edges of the frame. You cannot invert the effect. Midpoint moves the vignette edge farther into or out of the frame. Roundness adjusts the aspect ratio of the vignette and feather controls the softness of the edge.

There is no position control to move the vignette away from dead center. While the vignette group is useful for “pinching in the edges of the frame” (as a DP friend of mine is fond of saying), it’s less useful for directing the viewer’s attention. That’s the “power windows” approach, which I often use in tools like Resolve, Color, or SpeedGrade. There are other ways to achieve that inside of Premiere Pro, but just not self-contained within a single instance of the Lumetri Color effect.

It’s clear that Adobe has added a very deep toolset within this single effect and its corresponding control panel. For most color correction sessions, you can pretty well get everything done using just Lumetri Color. I believe most editors prefer to use a comprehensive grading tool that allows them to stay within the confines of the editing application. Lumetri Color within Premiere Pro CC 2015 brings that wish to reality without the need for roundtrips or third-party color correction filters.

©2015 Oliver Peters

Adobe Premiere Pro CC 2015

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To reinforce the value of the Creative Cloud subscription, Adobe continues to improve its core video and design products, but is also expanding the implementation of mobile-to-desktop and cloud workflows. The Creative Cloud 2015 video products were previewed at NAB and released this summer.

Mobile-to-desktop

Incorporation of mobile products into the production pipeline has become an important theme for Adobe. For Premiere Pro CC users, this primarily involves two products: Premiere Clip and Adobe Hue CC. Premiere Clip is a lightweight video editor for smartphones. Shoot your video on your phone and start cutting. Now Premiere Pro allows you to import Premiere Clip projects so you can continue cutting there. Media assets and projects can be moved among systems via Creative Cloud Libraries, powered by Adobe CreativeSync. With a Creative Cloud subscription you can access your own library, as well as shared libraries created by other users.

df3015_AdobeHueCC_editAdobe Hue CC supports the new color workflow within Premiere Pro CC. This smartphone application was previewed at NAB under the code name “Project Candy”. It will analyze the color tonality of any photo in 3D color space on your smartphone and turn that into a 3D LUT (color look-up table). Adobe Hue CC displays this analysis in the form of floating color bubbles over the image. You can rotate the cloud of bubbles on your smartphone screen to change the relative values of the selected colors. When you’re happy with the choice, this is saved as a 3D LUT to your Creative Cloud Library. Back on your laptop or desktop in Premiere Pro CC, access this LUT through the Creative Cloud Library and apply it as a “look” using Adobe’s new color controls.

New color workflow

The most visible addition to Premiere Pro CC 2015 is the new Lumetri Color panel. If you are familiar with Adobe Lightroom or SpeedGrade CC, then you’ll instantly recognize the similarities. It combines several color grading functions into a single, multi-tabbed interface panel. These controls are accessible through either the standard Effect Control panel or the separate Lumetri Color panel. The best part is that you can keyframe all of the functions. With either control panel you get a set of task-specific color wheels and curves. When the color workspace is activated, the display automatically docks the Lumetri Color panel, along with a new set of high-resolution, real-time videoscopes brought over from SpeedGrade.

df3015_Premiere_LumetriPanel_CurvesHueSaturationThere are two points within Lumetri Color to introduce LUTs. For example, in the Basic Correction tab’s pulldown menu, you can add a log-to-rec709 color transform LUT. Then in the Creative tab’s pulldown, add a stylized look. Premiere Pro CC comes with a number color transform and custom look files created by Adobe and LookLabs (SpeedLooks). Some of these, like the SpeedLooks options, work in two steps for the best results. For instance, if you were applying the SpeedLooks Blue Ice creative LUT to an ARRI Alexa log-C file, you would also need to use the SpeedLooks profile for ARRI cameras. Both generic .cube and Adobe’s .look formats work, so if you’ve purchased other LUT collections, like Osiris, Rocket Rooster, SpeedLooks, Koji, or others, then these will work with Premiere Pro CC. I created a set of SpeedGrade Look files last May and these can be easily accessed and applied inside Premiere Pro from the new Lumetri Color panel.

Editorial enhancements

There are a number of improvements that editors will appreciate. Workspace selections are now grouped across the top of the viewers. They are still available as pulldowns, but by having them grouped across the top, it’s easy to change between layouts that have been organized for editing, color, effects, audio, etc. These presets can be customized according to your needs.

One new marquee effect is Morph Cut, which is intended to make jump cuts in interviews appear seamless. This transition is similar to the FluidMorph effect available in Avid Media Composer. Editors cutting talking-head corporate videos and documentaries are frequently challenged to assemble cogent soundbites from sentence fragments – the so-called “frankenbite”. The inevitable jump cuts in the interviewee’s video are either left to jump or are covered with B-roll cutaway shots. When you apply a Morph Cut transition, Adobe’s warp stabilizer technology is used to analyze the video and create new in-between frames for a seamless transition across the cut.

In actual practice Morph Cut isn’t a panacea for all situations. If the frame size and position matches, the person is largely in the exact same spot, and they paused mid-sentence at the cut, then Morph Cut works quite well. However, if the camera has reframed, the person has their head turned at either the out or in-point of the cut but not the other, or they are still quickly talking through the cut, then the result isn’t very pleasing. Morph Cut requires analysis before being applied, which can proceed in the background.

A few of the less obvious improvements include trimming and timeline scrolling. These came with prior versions, but are still worth noting. You can now loop the trim window and make trim adjustments, which are dynamically updated. You can also JKL-play the middle of the cut or either side of the cut in the trim window to make a direct “double-roller” or “single-roller” trim. The point at which you stop the playback is the point to which the cut is then updated. The timeline will scroll smoothly or page as you play, depending on your preference. Auto-selection of clips is new with Creative Cloud 2015. As you move through the timeline, the playhead auto-selects the clips that it is parked over, based on the enabled target tracks. This is a handy feature, but it’s always on, unless you deselect the target tracks containing your video clips.

Interoperability

df3015_AfterEffects_FaceTracker_DetailedTrackingAdobe’s strength has always been its interoperability among the applications. Dynamic and/or Direct Links to Adobe After Effects CC, Adobe Audition CC, Adobe Media Encoder CC, and SpeedGrade CC make it easy to use Premiere Pro CC as the central hub in your workflow. After Effects got a huge update with CC 2015. I won’t go into depth, since this is mainly a Premiere Pro review, however, for editors the most important thing is the performance bump. Playback in After Effects is now as easy as a spacebar tap. This will be in near real-time after caching, complete with audio. You can make dynamic changes without stopping playback. As you loop the playback, these changes are quickly re-cached. The bottom line for editors is that After Effects now finally becomes a more interactive tool that fits with the temperament and workflow of most editors.

It’s not new with this version, but another workflow improvement is Premiere Pro’s Render and Replace command. When you send a set of clips from Premiere Pro to After Effects using Dynamic Link, those clips are replaced with an After Effects composition on the timeline. Until rendered, the After Effects composition is always “live” and negatively affects Premiere Pro’s performance. If you have a lot of compositions in the timeline, it can become bogged down. With Render and Replace, the “live” composition is replaced with rendered, “flattened” media. You are no longer having to access dynamic After Effects compositions, thus returning real-time playback to normal. Thanks to Adobe’s linking, you can still choose to edit that rendered file, which automatically sends you back to the original After Effects composition.

Interoperability between Premiere Pro CC and SpeedGrade CC has changed. Adobe had previously added Direct Link, which sends the Premiere Pro timeline to SpeedGrade. In the CC 2014 versions, color corrections applied in SpeedGrade show up as a Lumetri effect applied to the clip or adjustment layer when you send it back to Premiere Pro. The addition of the Lumetri Color panel in CC 2015 creates Lumetri Color effects in the Premiere Pro timeline, but these are not editable inside of SpeedGrade. The same is true going back to Premiere Pro.

The performance of SpeedGrade CC 2015 varies on my two Macs. It’s very sluggish when using the Direct Link path on the 2009 Mac Pro with a Sapphire 7950 graphics card. But when I run it on my Retina MacBook Pro with the built-in NVIDIA card, it’s an entirely different story. I don’t know if that’s an AMD versus NVIDIA issue, but whatever the reason, newer software runs best on newer hardware configurations. Yet, Premiere Pro seems about the same.

During the testing period, when I had installed CC 2015 preview versions alongside CC 2014 applications, SpeedGrade was extremely unstable on both Macs. Fortunately, now that the release versions are out, I’m glad that Adobe fixed these problems. It’s noteworthy that the CC 2015 update replaces all previous versions, so maybe they found that running multiple versions caused problems. It now works likes it’s supposed to. Nevertheless, with the Lumetri Color panel covering 90% of what nearly any editor would want, there seems less justification to use the SpeedGrade roundtrip, when you can get nearly everything done right inside Premiere Pro.

Other

df3015_CA_big_tracking_but_no_timelineSince After Effects is integral for many editors, a few more features are worth noting. New in CC 2015 is a Face Tracker. This is a simple mask based on identifying points on the face, like eyes, pupils, mouth and nose. The Face Tracker will follow the shot’s or person’s movement. It will even track exaggerated mouth movements without frame-by-frame adjustments. This is a very useful tool for locking an object to head movement or facial blurs to protect identity.

The Face Tracker ties into a new Adobe application – Adobe Character Animator. As the name implies, this is an application that enables you to create 2D character animation. Facial tracking technology can be used to animate the characters according to prerecorded tracking data, as well as to live, real-time tracking. For example, a webcam could be used to animate the characters live, complete with lip-sync. Animation passes can be recorded and edited for a complete production featuring multiple interactive characters.

This release has a number of large and small upgrades that will make editors and compositors quite happy. I like the direction Adobe has taken. It just reiterates that the designers are working hard to integrate user input and build upon the professional momentum that Adobe has earned to date.

Originally written for Digital Video magazine / CreativePlanetNetwork.

©2015 Oliver Peters

Rampant Design Tools

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Many editors are on the constant journey for just the right, cool set of plug-ins. By doing so, they often lock themselves into a single host application and often even a single machine to which the plug-ins have been licensed. If that sounds familiar and you are looking for an alternative, then moving to a package of drag-and-drop effects is the way to go. One of the best developers for such effects is Rampant Design Tools.

df1215_rampant_3_smRampant was founded by veteran visual effects artist Sean Mullen, so the effects have been created from the standpoint of what actually works. The beauty of these drag-and-drop effects is that you can use them with any nonlinear editing or compositing application, regardless of whether this is on Mac or Windows. As long as the system is running QuickTime and includes a playback component for Apple ProRes codecs, you are ready. Since the actual effects are media files, they can be archived with the project and moved between systems, without any need to license a plug-in on another machine.

df1215_rampant_6_smThe Rampant Design Tools website offers a lot of options for how to purchase the effects, but their latest endeavor is Studio Essentials, Volume 1 and 2. These include paint effects, film grunge, distortion, flares, light transitions, fire, smoke, bokeh, snow, dust, and so much more. Nearly all of these elements originate from real and not synthetic footage, which Rampant has actually produced using RED cameras. The effects packages are available in 2K, 4K, and 5K resolutions. Even if you are only working in HD, you might still want a 4K package, because it permits you to reframe the effect to get a unique look, rather than by simply dropping in a stock effect “as is”. The elements are designed to be modular. For instance, you can build up layers of the distortion elements to create a different look. The files come as Apple ProRes 4444 media that works well when keyed or composited using blend modes. By combining, reframing, and adjusting blend modes, you avoid the rut of effects that can’t be modified or plug-in presets.

Rampant Drives

df1215_rampant_4_smThese collections are large enough, that delivering a 4K version of one of the Studio Essentials volumes would be unwieldy as DVD-ROMs or as a download. Instead, Rampant Design Tools sells these complete with their “Rampant Drives”. These are 4TB, USB 3.0 drives containing the complete volume. When you purchase the collection with this delivery option, you may select either Mac or PC formatting. Simply plug it in and start using the effects straight from the drive. Although there is no technical limitation to moving the files around on a SAN, simultaneous shared use is prohibited by the EULA. It states that the contents may only be used on one computer at any one time.

df1215_rampant_9_smAs there are a lot of effects in the contents of each volume, Rampant includes a PDF preview file for each set of effects. This is a quick starting point to decide which effects group to explore, without having to bring everything into your edit project at once. These PDFs can also be downloaded from the website, if you are trying to decide what to purchase. Effects may be purchased as part of a complete Studio Essentials volume or by individual categories in 2K, 4K or 5K sizes. That may still be a bit much for many users, so Rampant also offers a smaller set of HD effects for $29 each through its BudgetVFX companion site.

Pieces and Parts

df1215_rampant_2_smMost of the effects can be used as a single transition or overlay effect, but some in the Studio Essentials collections have been designed as toolkits. For example, there’s the Monster Toolkit, which is intended as a drag-and-drop creature kit. It contains over 1500 elements (stored as Photoshop files), made up of various body parts, such as eyes, ears, mouths, skin textures, and so on. The download size is a whopping 35.6 GB simply for that kit! One of the newest collections is a set of organic paint effects. This set includes 62 effects clips and features a wide range of real paint drip and splatter effects, which will easily blend with video using Overlay or Multiply modes.

df1215_rampant_8_smTo use the effects in an NLE, you would typically place the clip on a higher track above your main video. In FCP X this would be as a connected clip over the primary storyline. A transition effect would be positioned so that the meatiest part of the effect clip would be lined up over the cut to hide it. This is particularly true of lens flare and light blast transitions where the center of the clip often completely fills the screen. This technique has been used for years by After Effects compositors to add a transition between clips on separate layers.

Letting the effect control your video

df1215_rampant_7_smA particularly cool trick that Mullen has posted as one of his tutorials (youtube.com/user/RampantMedia) is how to have the effect actually modify the video beneath. This is an aspect of many plug-ins and something not often associated with stock effects clips. His example uses one of the glitch effect clips. Typically this would be an overlay above the video that would obscure the image, but not necessarily distort or bend it with the effect. If you composite in After Effects, however, you can use its tools to have one layer affect the other. This is accomplished by adding two effects to the base video layer: Stylize – Motion Tile and Distort – Displacement Map. Motion Tile is set to wrap the image as it is stretched and mirrored, so you don’t see black on the edges. Displacement Map is linked to the layer with the glitch effect clip. Displacement is based on channels, so that the lower video is displaced where the effect is visible and not displaced where the glitch clip is black. The last step is to set keyframes for the start and stop of the displacement, so that the video isn’t displaced when you want it to be normal. This trick also works for other effects, such as lens flares.

df1215_rampant_11_smThere are many stock effects vendors on the market. A quick internet search would pull up a page-full. However, most are still offering effects in older codecs or are limited to HD sizes at best. Many don’t offer a wide selection of effects. You might find some great lens flares from one company, but do they also offer fire effects? Quality, breadth of product offerings, and high-resolution is what sets Rampant Design Tools apart from these others. It’s a great way to add eye candy to any production with tools that give you total control in sculpting a unique look.

Originally written for Digital Video magazine / CreativePlanetNetwork.

©2015 Oliver Peters

Building FCP X Effects – Update

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A few weeks ago I built and posted a small FCP X color correction effect using the Motion template process. While I have no intention of digging deeper into plug-in design, it’s an interesting experiment into understanding how you can use the power of Motion and Final Cut Pro X to develop custom effects, transitions, and generators. In this process, I’ve done a bit of tweaking, created a few more effects, and gotten a better understanding of how it all works. If you download the updated effects, there are a total of three filters (Motion templates) – a color corrector, a levels filter and a DVE.

Color science

In going through this exercise, a few things have been brought to my attention. First of all, filters are not totally transparent. If you apply my color correction filter, you’ll see slight changes in the videoscopes even when each tab is at its default. This doesn’t really matter since you are applying a correction anyway; but if it annoys you, then simply uncheck the item you aren’t using, like brightness or contrast.

df2615_fcpxfilterupdate_3Secondly, the exact same filter in FCP X may or may not use the same color science as the Motion version, even though they are called the same thing. Specifically this is the case with the Hue/Saturation filter. My template uses the one from Motion, of course. The FCP X Hue/Sat filter uses a color model in which saturation is held constant and luma (a composite of RGB) varies. The Motion version holds luma constant and allows saturation to vary.

The quickest way to test this is with a solid red generator. Apply the FCP X Hue/Sat filter and rotate the hue control. Set the scopes to display an RGB parade, vectorscope, and the waveform set to luma. As you rotate the hue around the dial, you’ll notice that the color dot stays neatly in the boxes of the vectorscope and moves in a straight, diagonal line from vector to vector. The RGB parade will show a perfect combination of red, blue, and green values to achieve the correct RMBCGY coordinates. However, the waveform luma levels will move up and down with large changes.

Now compare this to the hue control in the Hue/Sat filter included in my template. This is from Motion. As you rotate the hue control around the dial, the saturation value moves in what seems to be an erratic fashion around the vectorscope; but, the luma display changes very little. If you apply this same test to real footage, instead of a generated background color, you’ll get perceptually better results with Motion’s Hue/Sat filter than with the FCP X version. In most cases, either approach is acceptable, since for the purposes of color correction, you will likely only move the dial a few degrees left or right from the default of zero. Hue changes in color grading should be very subtle.

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Expanding filter features

After I built this first Motion template, I decided to poke around some more inside Motion to see if it offered other filters that had value for color correction. And as a matter of fact, it does. Motion includes a very nice Levels filter. It includes sliders for RGB as a group, as well as individual settings for red, green, and blue. Each group is broken down into sliders for black in/out, white in/out, and gamma. Then there’s an overall mix value. That a total of 21 sliders, not counting opacity, which I didn’t publish in my template. Therefore, you have fairly large control over grading using only the Levels filter.

df2615_fcpxfilterupdate_4I thought about building it into the earlier Oliver Color filter I had created, but ran into some obvious design issues. When you build these effects, it’s important to think through the order of clicking publish on the parameters that you want to appear inside of FCP X. This sequence will determine where these values appear in the stack of controls in the FCP X inspector. In other words, even though I placed this Levels filter ahead of Color Balance within Motion, the fact that I clicked publish after these other values had already been published, meant that these new controls would be placed to the bottom of my stack once this was displayed in FCP X. The way to correct this is to first unpublish everything and then select publish for each parameter in the order that you want it to appear.

A huge interface design concern is just how cluttered you do or don’t want your effect controls to be inside of FCP X. This was a key design issue when FCP X was created. You’ll notice that Apple’s built-in FCP X effects have a minimalist approach to the number of sliders available for each filter. Adding Levels into my Color filter template meant adding 21 more sliders to an interface that already combined a number of parameters for each of the other components. Going through this exercise makes it clear why Apple took the design approach they did and why other developers have resorted to various workarounds, such as floating controls, HUDs, and other solutions. The decision for me was simply to create a separate Oliver Levels filter that could be used separately, as needed.

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More value from color presets 

An interesting discovery I made was how Color Board presets can be used in FCP X 10.2. When you choose a preset from the Color Board’s pulldown menu, you can access these settings as you always have. The downside is that you can’t preview a setting like you can other effects in the effects palette. You have to apply a preset from the Color Board to see what it will look like with your image.df2615_fcpxfilterupdate_5

FCP X 10.2 adds the ability to save filter presets. Since color correction using the Color Board has now been turned into a standard filter, you can save color presets as an effects preset. This means that if you have a number of Color Board presets (the built-in FCP X settings, mine, or any custom ones you’ve created) simply apply the color preset and then save that color correction filter setting as a new effects preset. When you do this you get a choice of what category to save it into. You can create your own, such as My Color Presets. Now these presets will show up in that category inside the effects palette. When you skim over the preset icon, your image will be previewed with that color correction value applied.

Although these presets appear in the same palette as other Motion templates, the effects presets themselves are stored in a different place. They are located in the OS X user library under Application Support/ProApps/Effects Presets. For example, I created 40 Color Board presets that can all be turned into Effects Presets visible within the Effects palette. I’m not going to post them that way, but if you feel ambitious, I would invite you to download the Color Board presets and make your own effects presets out of them.

All of this is a great way to experiment and see how you can use the resources Apple has provided to personalize a system tailored to your own post needs.

Click here to download the Motion template effects.

Click here to download the Color Board presets.

For some additional resources for free plug-ins, check out Ripple Training, Alex4D and FxFactory.

©2015 Oliver Peters

Lumetri plus SpeedGrade Looks

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Last year I created a series of Looks presets that are designed to work with SpeedGrade CC. These use Adobe’s .look format, which is a self-contained container format that includes SpeedGrade color correction layers and built-in effects. Although I specifically designed these for use with SpeedGrade, I received numerous inquiries as to how they could be used directly within Premiere Pro. There have been solutions, but finally with the release of Premiere Pro CC 2015, this has become very easy. (Look for a full review of Premiere Pro CC 2015 in a future post.) Click any image for an expanded view.

df2515_lumsglooks_1_smOne of the top features of the CC 2015 release is the new Lumetri Color panel for Premiere Pro. When you select the Color workspace, the Premiere Pro interface will automatically display the Lumetri Color panel along with new, real-time videoscopes. This new panel provides extensive color correction features in a single panel (controls are also available in the Effects Control panel). It is based on a layer design that is similar to the Lightroom adjustment controls.

df2515_lumsglooks_6_smThe top control of the panel lets you select either the source clip (left name) or that one instance on the timeline (right name). If you select the source clip, then any correction is applied as a master clip effect. This correction will ripple to any other instances of that source on the timeline. If you select the timeline clip, then corrections only affect that one spot on the timeline. Key, for the purposes of this article, is the fact that the Lumetri Color panel includes two entry points for LUTs, using either the .cube or .look format. Adobe supplies a set of Adobe and LookLabs (SpeedLooks) LUTs. You can access built-in or third-party files from either the Basic or the Creative tab of the Lumetri Color panel.

df2515_lumsglooks_5_smIf you want to use any custom Look file – such as the free ones that I built or a purchased set, like SpeedLooks – simply choose browse from the pulldown menu and navigate to your hard drive location containing the file that you want to use. Sometimes this will require two LUTs. For example, SpeedLooks are based on corrections to a default log format optimized for LookLabs products. This means you’ll need to apply one of their camera patches to move the camera color into their unified log format. On the other hand, my Looks are based on a standard image, so you may or may not need an additional LUT. If you have ARRI Alexa footage recorded with a log-C gamma profile, then you’ll want to add Adobe’s default Log-C-to-Rec709 LUT, along with the Look file. In both examples, you would add the camera LUT in the Basic tab, since this is where the correction pipeline starts. Camera LUTs should be applied as source effects, so that they are applied as master clip effects.df2515_lumsglooks_2_sm

The next step is to apply your creative “look”, which might be a film emulation LUT or some other type of subjective look. This is applied through the pulldown in the Creative tab. Usually it’s best to apply this as a timeline effect. Simply select a built-in option or browse to other choices on your hard drive. In the case of my SpeedGrade Looks, pick the one you like based on the style you are after. Since the .look format can contain SpeedGrade’s built-in effect filters and vignettes, these will be included when applied in the Lumetri panel as part of a single LUT file.

df2515_lumsglooks_4_smAs with any LUT, not all settings work ideally with your own footage. This means you MUST adjust the other settings in the Lumetri Color panel to get the results you want. A creative LUT is only a starting point and never the final look. As you look through the various controls on the tabs, you’ll see a plethora of grading tools for exposure, contrast, color balance, curves, vignettes, and more. Tweak to your heart’s content and you’ll get some outstanding results without ever leaving the Premiere Pro environment.

Click here to download a .zip archive of the free SpeedGrade Looks file.

©2015 Oliver Peters

DaVinci Resolve – 10 Tips to Improve Your Skills

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Blackmagic Design’s DaVinci Resolve is one of the pre-eminent color correction applications – all the more amazing that it’s so accessible to any user. Even the free Lite version does nearly everything you’d want from any color grading software. If you have an understanding of how to use a 3-way color correction filter and you comprehend procedural nodes as a method of stacking corrections, then it’s easy to get proficient with Resolve, given a bit of serious seat time. The following tips are designed to help you get a little more comfortable with the nuances of Resolve. (Click on the images below for enhanced views.)

df2215_resolvetips_1_smPrimary sliders. Resolve gives you two ways to adjust primary color correction – color wheels and sliders. Most people gravitate to the wheels control panel, but the sliders panel is often faster and more precise. Adjustments made in either control will show up in the other. If you adjust color balance using the sliders, while monitoring the RGB parade display and/or the histogram on the video scopes, then it’s very easy to dial in perfect black and white balance for a shot. If the blue shadow portion looks too high on the RGB parade display, it means that the shadows of the image will look bluish. Simply move the blue lift slider lower to push the shadows closer to a true black. An added benefit of this panel is that the controls react to a wheeled mouse. This is great if you don’t have access to a control surface. Hover the mouse over the slider that you want to adjust and twirl the mouse wheel up or down to make your correction.

df2215_resolvetips_2_smGang/ungang curves. Given the propensity of cameras to record with log gamma profiles, you often find the need to apply an s-shaped luma curve during color correction. This shifts the low and high ranges of the image to expand the signal back to full levels, while retaining a “filmic” quality to that image. In the custom curves panel you’ll encounter a typical layout of four curves for luma and RGB. The default is for these to be ganged together. Adjust one and they all change. However, this means you are jacking around chroma levels when you might simply want to alter luma. Therefore, make sure to disable ganging before you start. Then adjust the luma curve. Only adjust the R, G or B curves if it’s beneficial to your look.

df2215_resolvetips_3_smHue/sat curves. If you toggle the curves pulldown menu, you’ll notice a number of other options, like hue vs. hue, hue vs. sat, and so on. These curve options let you grab a specific color and adjust its hue, saturation or brightness, without changing the tone of the entire image. When you sample a color, you end up with three points along the curve – the pin for the selected color and a range boundary pin on either side of that color. These boundary points determine the envelope of your selection. In other words, how broad of a range of hues that you want to affect for the selected color. Think of it as a comparable function to an audio EQ.

It is possible to select multiple points along the curve. Let’s say you want to lower the saturation of both bright yellows and bright blues within the frame. Choose the hue vs. sat curve and select points for both yellow and blue. Pulling these points down will lower the saturation of each of these colors using a single panel.

The hue vs. hue curve is beneficial for skin tones. A film that I’m currently grading features a Korean lead actress. Her skin tones normally skew towards yellow or green in many shots. The Caucasian and African American actors in the same shots appear with “normal” skin tones. By selecting the color that matches her flesh tones on the curve, I am able to shift the hues towards a value that is more in keeping with pleasing flesh tone colors. When used in combination with a mask, it’s possible to isolate this correction to just her part of the frame, so as not to affect the coloration of the other actors within the same shot.

df2215_resolvetips_4_smTracking/stabilization. Most folks know that Resolve has one of the best and fastest trackers of any application. Add an oval mask to someone’s face, so that you can brighten up just that isolated area. However, as the person moves within the shot, you have to adjust the mask to follow their face. This is where Resolve’s cloud-point tracker is a lifesaver. It’s fast and most of the time stays locked to the subject. The tracking window also enables stabilization. Use the pulldown menu to toggle from tracking to stabilization. This is a two-step process – first analyze and then stabilize. You can dial in an amount of smoothness, if you want to retain some of the camera drift for a more natural appearance to the shot.

df2215_resolvetips_5_smBlurs/masks/tracking. Resolve (including the free version) enables blurring of the image. This can be used in conjunction with a mask and with tracking, if you need to blur and track an object, like logos that need to be obscured in non-scripted TV shows. Using a blur with a vignette mask lets you create a dreamy effect. This is all possible without resorting to third-party filters or plug-ins.

df2215_resolvetips_6_smScene detection/slicing. There are three ways to get a show into Resolve: a) edit from scratch in Resolve; b) roundtrip from another NLE using FCPXML, XML, AAF or an EDL; or 3) export a flattened media file of your timeline from another NLE and import that master file into Resolve. This process is similar to when masters were output to tape, which in turn were graded in a DaVinci “tape-to-tape” color correction session. Resolve has the ability to analyze the file and determine edit points with reasonable accuracy. It will break up the files into individual master clips within your media pool. Unfortunately, these are viewed in the timeline as individual media clips with boundaries, thus making trimming difficult.

My preference is to place the clip onto a new timeline and then manually add splices at all edit points and dissolves. Since Resolve includes editing capabilities, you can trim, alter or add points in case of error or missed edits. This can be aided by importing a matching, blank XML or EDL and placing it onto a higher track, which then lets you quickly identify all edit points that you’ll need to create.

df2215_resolvetips_7_smAdd dissolves. In the example above, how do you handle video dissolves that exist in the master file? The solution (in the Resolve timeline) is to add an edit point at the midpoint of the dissolve that’s embedded within the media file. Next, add a new dissolve equal to the length of the existing dissolve in the video. This way, color correction for one shot will naturally dissolve to the color correction of the second shot. In effect, you aren’t dissolving video sources – only color correction values. This technique may also be used within a single shot if you have correction changes inside that shot. Although in the second case, adding correction keyframes in the Color page is normally a better solution. This might be the case if you are trying to counteract level changes within the shot, such as an in-camera iris change.

df2215_resolvetips_8_smNode strategy. Resolve allows you to store complex grades for shots – which will include as many nodes as required to build the look – at a single memory register. You can build up each adjustment in multiple nodes to create the look you desire, store it and then apply that grade to other shots in a single step. This is very useful; however, I tend to work a bit differently when going through a scene in a dramatic project.

I generally go through the scene in multiple “passes”. For instance, I’ll quickly go through each shot with a single node to properly balance the color and make the shots reasonably consistent with each other. Next, I’ll go back through and add a second node (no adjustment yet) for each shot. Once that’s done, I’ll go back to the head of the scene and in that second node make the correction to establish a look. I can now use a standard copy command (cmd-C on the Mac) to store those values for that single node. When I go to the next shot, the second node is already selected, so then I simply paste (cmd-V on the Mac) those values. Let’s say the scene is a two-person dialogue scene using two singles. Angle A is a slightly different color than Angle B. Set the second node adjustment for Angle A, copy, and then paste to each Angle A shot (leapfrogging the Angle B shots). Then repeat for the Angle B shots.

Lastly, I might want to add a vignette. Go back through the scene and add a third, blank node for each shot. Create the vignette in node three of the first shot, then copy and paste into each of the others. I can still adjust the darkness, softness and position of the vignette at each shot, as needed. It’s a bit of an assembly line process, but I find it’s a quick way to go through a scene and build up adjustments without getting fixated on a single shot. At any point, I can review the whole scene and get a better feel for the result of my corrections in the context of the entire scene.

df2215_resolvetips_9_smLUTs. Resolve enables the application of technical and creative LUTs (color look-up tables). While I find their use limited and should be applied selectively, it’s possible to add your own to the palette. Any .cube LUT file – whether you found it, bought it, or created your own – can be added to Resolve’s library of LUTs. On the Mac, the Resolve LUT folder is found in Library/Application Support/Blackmagic Design/DaVinci Resolve/LUT.

df2215_resolvetips_10_smExport with audio. You can export a single finished timeline or individual clips using the Deliver page. At the time of this post, Resolve 12 has yet to be released, but hopefully the audio export issues I’ve encountered have been completely fixed. In my experience using Resolve 11 with RED camera files, it has not been possible to accurately export a complete timeline and have the audio stay in sync. I haven’t found this to be the case with other camera formats, though. So if you are exporting a single master file, expect the potential need to bring the picture into another application or NLE, in order to marry it with your final mix. Resolve 11 and earlier are not really geared for audio – something which Resolve 12 promises to fix. I’ll have a review of Resolve 12 at some point in the future.

Hopefully these tips will give you a deeper dive into Resolve. For serious training, here are some resources to check out:

Color Grading Central

Explenite

FXPHD

Lynda

Mixing Light

Ripple Training

Tao of Color

©2015 Oliver Peters

The FCP X – RED – Resolve Dance II

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Last October I wrote about the roundtrip workflow surrounding Final Cut Pro X and Resolve, particularly as it relates to working with RED camera files. This month I’ve been color grading a small, indie feature film shot with RED One cameras at 4K resolution. The timeline is 1080p. During the course of grading the film in DaVinci Resolve 11, I’ve encountered a number of issues in the roundtrip process. Here are some workflow steps that I’ve found to be successful.

Step 1 – For the edit, transcode the RED files into 1080p Apple ProRes Proxy QuickTime movies baking in camera color metadata and added burn-in data for clip name and timecode. Use either REDCINE-X Pro or DaVinci Resolve for the transcode.

Step 2 – Import the proxies and double-system audio (if used) into FCP X and sync within the application or use Sync-N-Link X. Ideally all cameras should record reference audio and timecode should match between the cameras and the sound recorder. Slates should also be used as a fall-back measure.

Step 3 – Edit in FCP X until you lock the cut. Prepare a duplicate sequence (Project) for grading. In that sequence, strip off (detach and remove) all audio. As an option, you can create a mix-down track for reference and attach it as a connected clip. Flatten the timeline down to the Primary Storyline where ever possible, so that Resolve only sees this as one track of video. Compound clips should be broken apart, effects should be removed, and titles removed. Audition clips should be finalized, but multicam clips are OK. Remove effects filters. Export an FCPXML (version 1.4 “previous”) list. You should also export a self-contained reference version of the sequence, which can be used to check the conform in Resolve.

Step 4 – Launch Resolve and make sure that the master project settings match that of your FCP X sequence. If it’s supposed to be 1920×1080 at 23.976 (23.98) fps, then make sure that’s set correctly. Resolve defaults to a frame rate of 24.0fps and that won’t work. Locate all of your camera original source media (RED camera files in this example) and add them to your media bin in the Media page. Import the FCPXML (1.4), but disable the setting to automatically load the media files in the import dialogue box. The FCPXML file will load and will relink to the RED files without issue if everything has gone correctly. The timeline may have a few clip conflicts, so look for the little indicator on the clip corner in the Edit window timeline. If there’s a clip conflict, you’ll be presented with several choices. Pick the correct one and that will correct the conflict.

Step 5 – At this point, you should verify that the files have conformed correctly by comparing against a self-contained reference file. Compound clips can still be altered in Resolve by using the Decompose function in the timeline. This will break apart the nested compound clips onto separate video tracks. In general, reframing done in the edit will translate, as will image rotation; however, flips and flops won’t. To flip and flop an image in FCP X requires a negative X or Y scale value (unless you used a filter), which Resolve cannot achieve. When you run across these in Resolve, reset the scale value in the Edit page inspector to normal from that clip. Then in the Color page use the horizontal or vertical flip functions that are part of the resizing controls. Once this is all straight, you can grade.

Step 6 option A – When grading is done, shift to the Deliver page. If your project is largely cuts-and-dissolves and you don’t anticipate further trimming or slipping of edit points in your NLE, then I would recommend exporting the timeline as a self-contained master file. You should do a complete quality check the exported media file to make sure there were no hiccups in the render. This file can then be brought back into any NLE and combined with the final mixed track to create the actual show master. In this case, there is no roundtrip procedure needed to get back into the NLE.

Step 6 option B – If you anticipate additional editing of the graded files – or you used transitions or other effects that are unique to your NLE – then you’ll need to use the roundtrip “return” solution. In the Deliver page, select the Final Cut Pro easy set-up roundtrip. This will render each clip as an individual file at the source or timeline resolution with a user-selected handle length added to the head and tail of each clip. Resolve will also write a corresponding FCPXML file (version 1.4). This file will retain the original transitions. For example, if you used FCP X’s light noise transition, it will show up as a dissolve in Resolve’s timeline. When you go back to FCP X, it will retain the proper transition information in the list, so you’ll get back the light noise transition effect.

Resolve generates this list with the assumption that the media files were rendered at source resolution and not timeline resolution. Therefore, even if your clips are now 1920×1080, the FCPXML represents these as 4K. When you import this new FCPXML back into FCP X, a spatial conform will be applied to “fit” the files into the 1920×1080 raster space of the timeline. Change this to “none” and the 1080 media files will be blown up to 4K. You can choose to simply live with this, leave it to “fit”, and render the files again on FCP X’s output – or follow the next step for a workaround.

Step 7 – Create a new Resolve project, making sure the frame rate and timeline format are correct, such as 1920×1080 at 23.976fps. Load the new media files that were exported from Resolve into the media pool. Now import the FCPXML that Resolve has generated (uncheck the selection to automatically import media files and uncheck sizing information). The media will now be conformed to the timeline. From the Edit page, export another FCPXML 1.4 for that timeline (no additional rendering is required). This FCPXML will be updated to match the media file info for the new files – namely size, track configuration, and frame rate.

At this stage, you will encounter a second serious flaw in the FCP X/Resolve/FCP X roundtrip process. Resolve 11 does not write a proper FCPXML file and leaves out certain critical asset information. You will encounter this if you move the media and lists between different machines, but not if all of the work is being done on a single workstation. The result will be a timeline that loads into FCP X with black clips (not the red “missing” icon). When you attempt to reconnect the media, FCP X will fail to relink and will issue an “incompatible files” error message. To fix the problem, either the colorist must have FCP X installed on the Resolve system or the editor must have Resolve 11 installed on the FCP X system. This last step is the one remaining workaround.

Step 8 option A – If FCP X is installed on the Resolve machine, import the FCPXML into FCP X and reconnect the media generated by Resolve. Then re-export a new FCPXML from FCP X. This new list and media can be moved to any other system. You can move the FCP X Library successfully, as well.

Step 8 option B – If Resolve is installed on the FCP X machine, then follow Step 7. The new FCPXML that you create there will load into FCP X, since you are on the same system.

That’s the state of things right now. Maybe some of these flaws will be fixed with Resolve 12, but I don’t know at this point. The FCPXML list format involves a bit of voodoo at times and this is one of those cases. The good news is that Resolve is very solid when it comes to relinking, which will save you. Good luck!

©2015 Oliver Peters