This project shows the results of casting rays from a spherical light in a random direction from random points on the light. An infinite plane with a pinhole is placed between a sensor and the light. In addition, a red sphere is placed next to the light and moves during the simulation. Half rays that bounce off the sphere use importance sampling to bounce towards the pinhole. Thus, the energies of these photons are weighted by the PDF Ptot = 1/2 Partificial + 1/2 Pnatural. This resulted in images that are much better than project 4 that took a fraction of the time. I generated each image by running the simulation for several hours. Because of the high dynamic range of the images, I used tone-mapping by clamping to see the red sphere. The final images are gamma corrected.
