Here are results of running the vtkDecimate algorithm on various VRML files. The images shown are of the final decimated object. The original files are in VRML 1.0 and the decimated files are in VRML 2.0 format. The vtkDecimate object requires all faces be triangles, the system above first triangulates the incomming IndexFacesets and then passes them through the decimation filter. All resultant decimated VRML files consist solely of triangles.
Times are in seconds and include total run time.
There is one time for each of the runs above.