Projection mapping is a projection technology used to turn irregularly shaped objects into a display surface for projection. Using specialized software, a two or three dimensional object is spatially mapped out in a virtual environment. With this information, the software can interact with a projector to fit any desired image onto the surface of that object. People can use this technique to add extra dimensions, optical illusions, and notions of movement onto previously static objects. The video is commonly combined with, or triggered by, audio to create an audio-visual narrative. Continue reading for a video and more information.
After the object is chosen or created, a virtual replica of the entire physical set up needs to be created. A virtual model of the projection surface is created, and placed within a virtual environment. Coordinates need to be defined for where the object is placed in relation to the projector. Finally, the xyz orientation, position and lens specification of the projector are adding to the virtual scene. Adjustments are commonly needed by manually tweaking either the physical or virtual scene for best results.