28 Jul 2017

LumaFusion - Cutting with an iOS video NLE

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As iPads get more capable so the things you can do on them without pulling out your hair do too As iPads get more capable so the things you can do on them without pulling out your hair do too Luma Touch/RedShark

Index

RedShark Review: As Apple's iOS platform becomes more powerful, applications for it begin to rival the power and complexity of desktop software. LumaFusion is a recently introduced nonlinear video editing product from Luma Touch and it's rapidly on the way to becoming a viable alternative. 

Its founders created the Avid/Pinnacle/Corel iOS NLE, but LumaFusion takes a fresh approach. Luma Touch currently offers three iOS products: LumaClip (a single-clip editor), LumaFX (video effects for clips), and LumaFusion (a full-fledged NLE that integrates the features of the other two products). All three apps run under what Luma Touch dubs their Spry Engine, a framework for iOS video applications.

LumaFusion works on both the iPhone and iPad; however, the iPad version comes closest to a professional desktop experience. Ideally, you’ll want one of the iPad Pros, but it runs perfectly fine on an iPad Air 2 with the A8X chip, which is what I used. I’ve tried other iOS NLEs, including Adobe Clip, iMovie, and TouchEdit, which have their pros and cons. For instance, iMovie doesn’t deal with fractional video frame rates and TouchEdit tries to mimic a flatbed film editor. This brings me to LumaFusion, which has been designed as a modern, professional-grade NLE for the iOS platform.

The iOS ecosystem

Like other iOS apps, that tie into the ecosystem, media can be imported from iTunes, Photos, and other third-party applications, like FiLMiC Pro. As a "pro" app, it understands various whole and fractional frame rates and sizes up to 3840 x 2160 (UHD 4K), depending on your device. However, for me, the interest is not in cutting things that I’ve shot with my iPad, but rather fitting it into an offline/online editing workflow. This means import and export are critical.

If you own an iPad Pro, then you can get an SD card reader as an accessory. With the card reader, only native DSLR movie clips will be imported into the Photos app, but not other file formats. Typically, you are going to transfer media using cloud syncing tools, like Dropbox, Box, OneDrive, etc. LumaFusion also includes a number of royalty-free music cuts, which can be accessed through its integrated media browser.

To use it as a rough-cut tool, simply create H.264 proxies on your desktop system and sync those to the iPad using Dropbox (or another cloud service). I created a test project of about 60 clips (720p, 6Mbps, 29.97fps) that only consumed 116MB of storage space. Therefore, even a free 2GB Dropbox account would be fine. Within LumaFusion, import the files from Dropbox and start editing.

LumaTouch will soon start beta testing LumaConnect – a macOS companion application designed to facilitate offline/online editing roundtrips. It will feature automatic iOS proxy creation and the ability to relink high-res media – as well as any iOS-captured content - back on your desktop computer. LumaConnect will also allow the rendering of projects as Apple ProRes files.

User interface and editing workflow

LumaFusion_Edit layout.png

Overall, the interface design and editing model more closely approximates Apple Final Cut Pro X than any other NLE. The app’s design is built around a media pool with various editing projects (sequences). This is a similar approach to FCPX 10.0, which had separate Events (bins) and Projects (sequences), but no combined Libraries. It’s almost like FCPX “Lite” for iOS.

There are three main windows: media browser, timeline, and a single, combo viewer. It uses fly-out panels for tools and mode changes to access clip editing and effects modules. These modules are, in fact, LumaClip and LumaFX integrated into LumaFusion. The timeline is “magnetic”, much like FCPX. Clip construction on the timeline also follows the layout of primary and connected clips, rather than discrete target tracks. A total of three integrated audio/video clips can be stacked vertically, along with another three audio-only clips, for a total of six audio “tracks”. Audio can be adjusted through a fly-out track mixer. LumaFusion includes four clip editing tools: speed and reverse, frame fit, color effects, and audio editing. In addition, there’s a multi-layered title tool, along with a number of customizable title templates to choose from. Clip-based volume and video effect adjustments can be keyframed.

Effects are pretty sophisticated and would often be GPU-accelerated on a desktop system. These include color correction, blurs, transforms, transitions, and more. You can stack a number of these onto a single clip without any impact on playback. The effects priority can be rearranged and the interface also provides an indication of how many resources you are tying up on the iPad.



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Oliver Peters

Oliver Peters is a veteran editor, colorist, and post production consultant. He is also a contributor to various industry publications writing about production and technology topics. He may be contacted through his website at oliverpeters.com

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