Method for rendering three-dimensional virtual scene for e.g. digital model in CAD, involves loading metavoxels at higher level of recursive grid when point of view of camera is displaced, and displaying remaining metavoxels at lower level

摘要

The method involves grouping data of a three-dimensional (3D) scene into a geometrical data structure corresponding to a spatial division of the scene into a regular grid to form metavoxels, where each metavoxel includes a set of voxels corresponding to a representation, by volume, of part of the data. The metavoxels are loaded at higher level of a regular recursive grid as and when a point of view of a camera is displaced, and the remaining metavoxels visible from the position of the camera are displayed at lower level of the recursive grid. An image is rendered using the data structure.