
Using photon mapping for indirect illumination only.

Add a Monte Carlo sampling bounce for indirect illumination.

Using only photon mapping for illumination.

Using only photon mapping for illumination. Increased exposure.

Using only photon mapping for illumination. Fixed caustics.

Using only photon mapping for illumination. Color has appeared, but there are still many problems.

Photon count: 5 million. Photon search radius: 0.6. Nearest photons: 150. Using only photon mapping for illumination.