Rendering Method
The method aims to simulate realistic photon behavior by using an adapted ray tracing method similar to photon mapping, by sending rays from the light source. However, unlike photon mapping, each ray keeps bouncing around until one of three things occurs:
- it is absorbed by any material.
- it leaves the rendering scene.
- it hits a special photo sensitive plane, similar to the film in cameras.
Read more about this topic: Photon Tracing
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