Frontal and Camera Mapping
The slide projector has been used quite often in describing how numerous projection types work. The Frontal and Camera Mapping projection types also work very similarly to a slide projector because the camera itself is turned into a projector for a given material. The Flat projection type will project a material onto a surface, whose orientation in turn will automatically be set to face the camera. The material will automatically be set to the defined Resolution and will fill the entire field of view of the respective camera. Frontal projection will always use the camera that is currently active.
The Camera Mapping projection type is even more precise in that it can be assigned to any given camera in the Object Manager via the Texture Tag. Furthermore, the Size values can be used to scale or distort the material.
Attaching different materials to different cameras makes it possible to project different materials onto an object depending on the camera through which the object is viewed. This can be used, for example, to texture simple shapes with different images - a technique often used for Matte Painting in film production. This will be discussed in more detail in the Projection Man section. Projection Man is a special function developed for texturing using camera projection.