Reality computing makes possible the use of computers to faster design, engineer and create physical objects by capturing real world 3D data and modifying or designing in the digital medium. This process is much faster than many measurements and physical prototypes. Reality capture is more accurate and takes into account real world part anomalies in ways working from specifications or blueprints cannot.
Reality capture can be achieved by techniques such as lidar where lasers take detailed scans of a subject or photogrammetry. Another method by which reality capture is achieved using photographs to reconstruct an accurate scale 3D representation of the subject to be worked on. CAD is used to create a new piece or modify the subject. Once a suitable solution is created, it can quickly be produced by either additive (like 3D printing) or subtractive manufacturing (like CNC milling machines).
Reality computing is used by engineers, designers, inventors and creative artists to reduce time and increase accuracy in many types of work from tiny machine parts to civic projects like highway overpass design.