Setting Unreal Media Bundle Material to Translucent Blend Mode
Unreal Engine Media Bundles default to a Masked Blend Mode, which results in choppy edges in keyed video. This is due to the fact that the Masked Blend Mode does not support semi-transparent pixels (only solid, or transparent) This video shows how to switch the Media Bundle's Material Blend Mode to Translucent, which supports semi-transparent pixels for smoother keyed edges.