FCP has compiled a list of the features shown off...
● 360 tools built in including 360 and 360 3D titles built in motion.
● Clone tool for rig concealment at bottom of 360 frame.
● Horizon straightening tool in 360
● Custom 360 transitions built with the new version of motion
● Support for onscreen 360 and headset display at the same time
● Support for HDR
● New Colour Wheels with RGB and Hue/Saturation Curves
● Manual white balance using a colour picker (yay!)
● New preference for what colour correction control is shown first on clip
● Support for additional camera LUTs
● Custom LUTs can be loaded per clip in Inspector
● Custom LUTs can be added as an effect
● Role based forward/back clip selection (i.e. it can ignore titles)
● Extra Programmable functions for colour correction to be mapped onto keyboard
● Existing Projects with colour board colour correction not affected - just extra controls added
● 10.4 on iMac Pro can play 4K native RED footage with colour correction & title overlay unrendered on the timeline
● 10.4 on iMac Pro can play optimised (ProRes 4444) in 8K with colour correction and effects in an unrendered timeline
● HEVC Support
● Can import an iOS iMovie project into FCPX 10.4
Alex Gollner shared a video clip of VR video in FCPX on Twitter. Check it out below!
Apple hasn't announced release date for FCPX 10.4 yet but you can follow iClarified on Twitter, Facebook, Google+, or RSS for updates.
Final Cut Pro can be purchased from the Mac App Store for $299.99.