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3D visualization
What is 3D mapping?
- 3D mapping (from "video" and "mapping") is a modern multimedia technology that allows you to project an image onto three-dimensional objects, giving them new visual characteristics.
- The technology is based on three-dimensional computer modeling of the projection. The image projected on the object takes into account its shape and location in space. A familiar example of colorful 3D mapping installations are the opening performances of the Olympics or exciting videos on the Internet, in which huge buildings literally come to life under the rays of video projectors.
3D mapping
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Types of 3D mapping
Different types of 3D mapping require different approaches, both in terms of the equipment used and in terms of the organization of broadcasting the content itself. There are five main types of 3D mapping.
Architectural
Architectural
- One of the most impressive and well-known types of 3D mapping. As an object for video projection they use building facades, bridges and other large elements of the urban landscape.
- Very similar to the first type, only as a means of projection images serve natural objects: mountains, trees, ordinary snow in winter, etc.
Interior
- Allows you to completely transform the interior of a museum, restaurant or even an apartment. The image is transferred to the walls, so they become "movable" and can take on any appearance. For example, such "interior" can change depending on the time of day or in accordance with another program.
- It is generally believed that this is a version of video projection began with 3D mapping, when back in 1969 the idea of Walt Disney was realized: images were transmitted to human busts by projectors, and they seemed to come to life and begin to talk.
Applications of video mapping.
For public events and show business
- Dynamic 3D projections on the facades of buildings
- 3D staging at the opening of major international and regional events
- Laser shows and video mapping at the performance of famous performers on large venues
- 3D mapping inside top discos and clubs to enhance the effect (not only music, but also light and visual images)
For advertising
Presentations of world-famous brands
- For example, advertising of new car brands, when thanks to 3D mapping visual wonders happen: a car standing on the stage suddenly begins to rush along the high-speed autobahn, or, like a transformer, disassembles and shows its internal structure.
- Examples are a kind of holographic video projections created in showcases of fashion boutiques and stores, or interesting and eye-catching video projections in the interior.
For cultural institutions
Museums, cultural and exhibition centers around the world are increasingly using 3D mapping technology.
Application:
Application:
- Volumetric video projections visually expand the space of exhibition halls, creating atmosphere and bringing additional visual information.
- Thanks to 3D mapping, it is possible to create realistic holographs of rare exhibits that are not possible to demonstrate to visitors.
- Dynamic video pictures created by projectors can show both the structure of the atom and a sketch of the life of the inhabitants of a medieval city.
For art
Modern multimedia solutions are increasingly being used in various types of visual art. 3D mapping technology is no exception. On the one hand, it makes it much cheaper, and on the other hand it significantly expands the possibilities of creating decorations and interiors for performances. 3D mapping can also be applied to small forms, for example, a projection can be transmitted directly to the costume of an actor, amazingly changing it in the blink of an eye. Or make unusual video projections on the instruments of musicians.
For education
Education usually does not use expensive 3D solutions. But even having one multimedia projector and the appropriate software can significantly expand educational opportunities.
Examples of video projections for education:
Examples of video projections for education:
- Interactive floor. Projection is created on the floor and, using a special expansion module, it reacts to human movements. Thus, by building created images that react to the movements of the child, it is possible to combine his desire for constant movement and learning element (for example - to step only on the balls of a certain color).
- A portable dome multimedia center. It can act as your own school planetarium, as well as used for various educational programs and just for recreation of children.
How 3D mapping is created
Creating a 3D mapping installation, especially in the case of large shows, is quite a complex and time-consuming process that requires the efforts of many professionals. Let's review the main steps on the example of architectural 3D mapping. Let's imagine that we have a building on the facade of which we plan to broadcast a colorful visual show. Its creation can be divided into several stages:
Study of the object of the planned installation and its characteristics.
Study of the object of the planned installation and its characteristics.
- What material and what color the facade of the building is made of (directly affecting what color and how it will be reflected from its surface)
- what percentage of the building's glazing (glass transmits a lot of light and, for example, in the case of glass walls of skyscrapers, organizing a projection on their surface is not possible)
- whether there are columns and protrusions on the facade of the building (directly important when organizing the visual flow to its different parts), etc.
Equipment
Professional Multimedia Projectors
- The choice of specific models and their number depends on where and how difficult it is to obtain video projection: while creating a large performance at large sports or entertainment shows dozens of professional video projectors are used. In addition, back-up equipment must be provided so that any failure in the main complex of audio-visual systems would not lead to a halt of the show.
- Both software and hardware belongs to the professional line, they are quite expensive and require professional skills, but are able to produce high quality content for 3D mapping.
- video controllers
- servers
- speaker systems
- switching equipment
Combined Reality Technology
Mixed Reality technology (MR - Mixed Reality) opens up enormous opportunities in the field of working with virtual 3D objects. Unlike already known systems of virtual reality (VR) equipment, MR systems allow to combine the virtual world and the real environment and have a huge practical potential of provided opportunities. The advanced solution in this area, developed by Microsoft, is the HoloLens system.
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