3d mesh compression and coding

摘要

A method for compressing 3-D geometry data which includes information describing a plurality of vertices, said method comprising: receiving said 3-D geometry data; and encoding said 3-D geometry data into a compressed data stream, wherein said encoding comprises: organizing a first subset of said vertices into a first strip of geometric primitives; and representing said first strip with a first plurality of commands usable to assemble a plurality of geometric primitives from said first strip during decompression, wherein selected ones of said first plurality of commands specify that selected vertices are to be stored to a mesh buffer for use in forming subsequent geometric primitives specified by said first plurality of commands; wherein said mesh buffer includes a number of memory locations configured to store vertex parameters corresponding to selected vertices, wherein said 3-D geometry data has a total number of vertices substantially larger than said number of memory locations. <IMAGE>