Photon mapping accelerating method based on point cache
A photon mapping and photon technology, applied in 3D image processing, instruments, calculations, etc., can solve the problems of slow calculation efficiency and large memory usage of the acceleration cache structure, achieve uniform distribution of sampling points, avoid calculation errors, and reduce storage costs Effect
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[0039] The present invention will be further described below in conjunction with rendering examples and accompanying drawings.
[0040] For a rendering algorithm, it is the process of converting a 3D scene into an image. Before the rendering task starts, the expression of a 3D scene in the modeling software is converted into a data expression that the rendering engine can read and recognize. The scene includes information such as cameras, geometry, light sources, materials, and map textures. The user submits a scene data file package containing complete information, and the rendering engine can recognize the camera, geometry, light source and other information described in these files. After the entire scene data is read in, the rendering algorithm starts, coloring and outputting the image.
[0041] The BOX scene is a rendering instance. In this scene, it contains a box with a light source, a transparent glass ball and a camera. After the rendering engine has read the enti...
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