Source files accompanying the paper "PN-Method for Multiple Scattering in Participating Media" from EGSR18. The architecture and inner workings of the solver are described in detail in chapter 3 of my phd thesis.

File structure:

• ./cpp/gpu: small gpu volume path-tracer for rendering of volumes together with generated PN solutions.
• ./cpp/pnsolver: the pn solver implementation. Note that pybind is used to create a python module.
• ./cpp/renderer: cpu path-tracer for rendering volumetric datasets using ground truth illumination or a cached PN solution.
• ./python/notebooks: jupyter notebooks with various tests and investigations done throughout the project.
• ./python/pnsolver: python scripts which uses the pnsolver to run various experiments and problems.
• ./python/pnsolver/notebooks: jupyter notebooks for analysing and visualizing pnsolver results.