Photon mapping
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In computer graphics, photon mapping is a two-pass global illumination algorithm developed by Henrik Wann Jensen that approximately solves the rendering equation. Rays from the light source and rays from the camera are traced independently until some termination criterion is met, then they are connected in a second step to produce a radiance value. It is used to realistically simulate the interaction of light with different objects. Specifically, it is capable of simulating the refraction of light through a transparent substance such as glass or water, diffuse interreflection between illuminated objects, the subsurface scattering of light in translucent materials, and some of the effects caused by particulate matter such as smoke or water vapor. It can also be extended to more accurate simulations of light such as spectral rendering.
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| Global Illumination using Photon Maps Global Illumination using Photon Maps graphics.ucsd.edu/.../global_illumination_using_photon_maps_egwr96.pdf - Web |
| Realistic Image Synthesis Using Photon Mapping Realistic Image Synthesis Using Photon Mapping graphics.ucsd.edu/~henrik/papers/book/ - Web |
| Photon mapping introduction Photon mapping introduction www.cs.wpi.edu/.../PhotonMapping.html - Web |
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