Photogrammetry / 3D Models
Photogrammetry has existed for a good century, and has originally been used as a measuring tool. It has been used later on to survey lands and analyze geographical / topological data, or used for reverse engineering, and more recently in the immersive space, with the acceptance of game engine based platforms to create content.
Photogrammetry models are a great asset as they can have multiple end uses like in AR, VR experiences (it opens the door to interactivity and 6 Degree Of Freedom abilities), can be combined with volumetric capture. It is also a great tool for virtual productions, that can be used as backdrops for scenes, that can be tracked live with camera tracking systems like NCAM. Photogrammetry is also simply a unique way to document cultural heritage.
Creating hyper realistic 3D models from photography has been a bit of a learning curve, as getting a high fidelity model of a physical object is pretty complex, but it has been a fascinating journey for me, as it takes 2x highly technical elements core of my life (photography and VR 360 capture) into one field.