VOXELIZATION OF A MESH

Abstract

A 3D rendering method, comprising receiving a group of 3D triangles defining a mesh of a surface, each 3D triangle in the group having 3D vertices with respective 3D coordinates, and transforming each 3D triangle into a 2D triangle having 2D vertices corresponding respectively to the 3D vertices, each 2D vertex having respective 2D pixel coordinates and a triplet of pixel attributes corresponding to the 3D coordinates of a corresponding 3D vertex. Each 2D triangle is passed to a graphics processor, which treats the triplet of pixel attributes of each 2D vertex as interpolable values. The graphics processor calculates respective triplets of interpolated pixel attributes for pixels in each 2D triangle by interpolating between the pixel attributes of the 2D vertices, and a 3D image of the surface is rendered by converting the interpolated pixel attributes calculated by the graphics processor into voxel coordinates.