The Baking camera type renders lighting, texture, and material data directly into texture maps. This process is covered in greater detail in Texture BakingA process in which scene lighting is "baked" into a texture map based on an object's UV texture coordinates. The resulting texture can then be mapped back onto the surface to create realistic lighting in a real-time rendering environment. This technique is frequently used in game engines and virtual reality for creating realistic environments with minimal rendering overhead. topic under the Rendering section in this manual.
Figure 1: Lighting and material data bake to a Texture map using the Baking camera