Deviation control method in photon mapping
A technology of photon mapping and control methods, applied in the processing of 3D images, instruments, calculations, etc., to achieve the effect of eliminating visible deviations and reducing noise errors
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[0036] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described below through specific embodiments and accompanying drawings.
[0037] Standard photon mapping uses a two-pass process to draw an image. The first pass uses ray tracing to build a photon map (PhotonMap), called the photon tracing process (PhotonTracingPass); the second pass emits light from the viewpoint position and traverses the scene , when the light intersects with the scene to generate an intersection point, the photon collection method is used according to the stored photon graph and the radiance calculation is performed on the collected photons, and finally the radiance value of the intersection point is calculated and displayed on the image, which is called the ray tracing process (Ray Tracing Pass). The process of calculating the radiance of the photons collected at the intersection point is also c...
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