Figure 1: Lowered the light to Y= 1.5 Reflections (30 seconds)
Figure 2: With color (27 seconds)
Figure 3: With 100000 photons using 1000 in estimate.
Figure 4: Added a back wall
In the previous 3 images I was adding the irradiance instead of multiplying the direct illumination from the ray tracer by the illuminance. This error made it so the images appeared very bright.
Figure 5: Scene with photon mapping and recursive reflections and the background
Figure 63: Photon Mapping with recursive reflections (background off)
Figure 7: Direct and global illumination (first look)
Photons 100,000, Photons per pixel 1000, Range of 1.0
Figure 8: (6 seconds to render)
Figure 9: (25 seconds to render) Range increased to 2
Figure 10: (5 seconds) Added a ceiling and moved the light to Y = 2.0
Figure 11: (22 seconds) Light Y = 2.5 played with photon directions
Figure 12: Irradiance multiplied by the colros awith reflection
Figure 13: 10000 Photons 100 used in estimate
Figure 14: 10000 Photons, 100 used in estimate with reflections on
Figure 15: 1000000 photons, 100 used in estimate
The images above all suffered from an incorreclty balance kd-tree which was used to store the photons. This was causing incorrect irradiance estimates when using the map to lookup values.