Date of Award
Bachelor of Science
lens, realistic, ﬂare, ﬂares
Lens ﬂare is a common optical phenomenon exhibited by lens systems, like those used for professional photography or ﬁlm. As light travels from the front of a lens system towards the sensor at the back, it can either refract through or reﬂect off of the surfaces of the lenses. A lens ﬂare is the result of (typically) unwanted reﬂections and scattering caused by imperfections in the lenses. This reﬂected or scattered light then travels to the sensor following unexpected paths. While considered by some to be degrading artifacts, lens ﬂares have grown to become an essential ingredient for realistic imagery and are often used as artistic effects. As such, adding lens ﬂares to realistic image rendering has become a desired feature. However, while it is possible to render realistic lens ﬂares using ray tracing, current techniques are often too slow to use in real-time. On the other hand, approximations can be made to vastly improve the frame rate of rendering, but this comes at the cost of visual ﬁdelity. We present several methods of approximation in an effort to render a more realistic lens ﬂare in real-time.
Dilorio, Stephen, "Optimizations for Rendering Realistic Lens Flares in Polynomial Optics" (2015). Honors Theses. 292.