  A vital component of photo-realistic image synthesis is the simulation of
indirect diffuse reflections, which still remain a quintessential hurdle that
modern rendering engines struggle to overcome. Real-time applications typically
pre-generate diffuse lighting information offline using radiosity to avoid
performing costly computations at run-time. In this thesis we present a variant
of progressive refinement radiosity that utilizes Nvidia's novel RTX technology
to accelerate the process of form-factor computation without compromising on
visual fidelity. Through a modern implementation built on DirectX 12 we
demonstrate that offloading radiosity's visibility component to RT cores
significantly improves the lightmap generation process and potentially propels
it into the domain of real-time.
