Lynn Asberg

I researched depth of field post-processing and implemented a new constant time parameter-driven lens simulation that implements Seidel aberrations to accurately simulate the imperfections that real lenses introduce, including both monochromatic and chromatic aberrations. My thesis was graded a 9.1 which made it possible for me to graduate my master's cum laude. The full thesis can be read here.

A simple 2D ray tracer I made, which was later incorporated in the depth of field implementation for my thesis. Rays are spectrally traced through lenses of varying materials, accurately simulating wavelength dependency and incorporating reflection and refraction. Also, it allows for some pretty pictures :)

For a university project I developed a depth of field shader based on some ideas by Dennis Gustafsson, which I ported to Unity. This shader achieves fairly accurate depth sorting in a single pass using only a basic circle of confusion precalculation step.

For the course Advanced Graphics at Utrecht University (taught by Jacco Bikker), I created a fully fledged multi-threaded CPU path tracer, utilizing techniques such as Importance Sampling, Next Event Estimation, very fast BVH construction (40 ms for over 17k triangles, single core performance), volumetrics and crude spectral rendering.