Visibility splatting and image reconstruction for surface elements

摘要

In a method for projecting surface points of a graphic object onto pixels in a depth buffer to determine depth values of the pixels, each surface point is projected onto a corresponding pixel. A depth value of each projected surface point is stored in the pixel only if the depth value of the projected surface point is less than the depth value of the pixel. A tangential disk is constructed at a position of the surface point, the tangential disk has a radius larger than a maximum distance between the surface points. The tangential disk is projected onto a corresponding subset of the pixels. Depth values of the projected tangential disk are stored in the corresponding subsets of pixels only if the depth values of the projected tangential disk are less than the depth values of the corresponding subsets of pixels. <IMAGE>