OFX is an open source standard for 2D visual effects or compositing plug-ins and allows Sapphire to easily “plug-in” to many different host applications. The current supported list of Sapphire OFX hosts include Autodesk Flame, The Foundry’s Nuke, Blackmagic DaVinci Resolve, Blackmagic Fusion Studio, VEGAS Pro. You can read more OFX here.