New Composure is probably the biggest update yet for VFX Filmmakers and revolutionizes 3D compositing in Unreal Engine! Add live action green screen to virtual environments with Composure’s Projection Mapping techniques. Retain Shadows, Embed Video in Fog and VDBs, Hold Out Video with the Environment or Animated Characters, all with perfect Depth of Field!
https://dev.epicgames.com/community/learning/tutorials/Kxbp/unreal-engine-composure-add-live-action-green-screen-to-virtual-environments