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Do we mostly work with the pinhole model of cameras in computer graphics? Are there other camera models?


Check out this slide that comments on this. A pinhole model will create an all-in-focus image of the world.. but this is not always desirable. What about modeling defocus or other effects associated with real lenses? To achieve this, one would need to model how light refracts through real lenses before reaching a camera sensor. The advantage of working with the pinhole model though is that it is quite simple, easy to implement, and computationally efficient to compute.