Have you ever seen floors, walls, or objects with abstract light and shadow effects, that look like they are coming to life? If so, you probably saw a version of video mapping or projection mapping. Lighting a 3D object or an irregular shape with a digital display is called video mapping or projection mapping. Video/projection mapping had been popular with DJ artists using lights from projectors to enhance the audio with synced visuals. Recently, projection mapping has been used on a large scale projection such as Cinderella Castle in Disney Parks, which is used to project special 3D events and shows. Large scale projection mapping like this uses large projectors with 20,000 lumens output or greater. Video mapping has also become more mainstream with the accessibility to many different types of projectors as well as specialized software to help design and map the projection.
Video and projection mapping is not easy work as it requires a lot of planning as well as learning 3D modelling. If you are thinking of creating your own interactive video mapping project, here are some simplified steps that might help you understand the process. A more detailed instruction can be found at Make an Affordable Interactive Videomapped Installation. The first step is to determine what image or video to project as well as the object or surface that you want to project on. After that, you would need to find out what projector you want to use based on your where, how, and what you are planning on doing for the mapping. You want to install the projector at a fixed location. Next, you are going to need to design your image to fit with the surface that you are working on. On irregular surfaces, you will need video mapping software such as MadMapper, HeavyM, Qlab, Troixatronix’s Isadora, FaçadeSignage, ArKaos, or Photopshop to help you edit your design. If you are able to get your design, the next step is to use your projector to display your designs. For more examples for creative ideas, you can check out: Top 20 Best Projection Mapping Examples. For smaller scale video mapping on everyday objects, check out this Projection Mapping website.