Spatial mapping is similar to Flat projection. However, with Spatial mapping, the texture is pulled up and to the left as it passes through the object. Spatial mapping does, however, cause some distortion and as such it is not suitable for photographic images. Spatial mapping is more suitable for structural textures such as plaster and marble.
If an object has UVW coordinates, you can select them as the projection type. In this case, the texture geometry is fixed to the object surface and is subject to all subsequent movement and deformation applied to the object. An example of UVW mapping is the page of a book as it is being turned. First you must fix the texture (e.g., text and an image) to the page using UVW mapping. The texture will bend with the page.
With this projection type, the center of the texture is fixed to the north pole of a sphere and the rest of the texture is stretched over it. The advantage of this mapping type is that the texture converges at the bottom pole only. This prevents a seam running between the poles. Only a circular section of the texture is used, with the center of the circle corresponding to the center of the picture. The remainder of the picture is discarded.
With camera mapping, the texture is projected from the camera onto the object.