Depth of Field - Simplified

March 11th, 2008 by ReAn

What is depth of field? Depth of field is the simulation in 3D graphics of a lens-based camera. Conventional rendering techniques model a pinhole camera paradigm, this means that all aspects of the picture share the same level of focus (the entire picture is in focus). With a lens-based camera, the rendered image will have varying levels of focus based on the ‘focus’ of the lens. Since we’re not using a ray-tracing engine, it’s hard to approximate the effects of light bending through a lens in the projection phase of rendering so we can ‘fake’ Depth of Field by breaking the problem down.
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Posted in Computers, Graphics | | 154 Comments