WHAT IS PROJECTION MAPPING?
Also known as video mapping and 3d projection, Projection Mapping is a technique of covering an object or part of an object with projected light. The object can be as big as a building , a whole theatre set or as small and intimate as a face, or anything at all really. What makes projection mapping special from simply lighting an object is the precision and effects you can achieve. It can bring an inanimate object alive, and create amazing illusions for an audience.
Any standard projector can achieve the effect, generally the bigger projectors are needed simply to generate more light and better quality of image.
Basically the technique requires three processes. Firstly precise measuring or an accurate 3d model on which to base the next two processes - creating bespoke content and finally the 'mapping' - using special software to manipulate the image as it's projected to precisely fit the real world object.
Some examples can be seen blow
Using a 3d scan can produce perfect coverage - Experiments during mapping workshop
Refugees of the Septic Heart Set - Projection positions and coverage 3d model render above. the result below
Test Screens during mapping process
University of Nottingham- Projection positions and coverage 3d model render above. the result below
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