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Tutorial Basic Detail
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Description:Final Gathering - Final Gathering is computed from the point of view. When the primary ray hits the point on an object, final gather is activated and a series of rays are diverted at random angles into the scene to calculate the light energy (colour information) to be calculated around the point for which we are computing colour for. This information is stored in the photon map. The photon map is then consulted and is used to add the effect of the bounced light in the ray-tracing process, this, essentially turns every object into a light source.