read_binary_stl_fil​e(filename)

a very fast binary stl file reader.

reads stl files in very short time. does not read color.
reads binary file and returns triangle nodes as n*3 matrix , vertices as 3n*3 matrix and normals as n*3 matrix
triangles can be plotted using trisurf or trimesh
trisurf(tri,v(:,1),v(:,2),v(:,3),'EdgeColor','red','FaceColor','green')