Load the identity matrix into the current transformation matrix
#include <volpack.h>
\$1 vpIdentityMatrix(vpc)
vpContext *vpc;
VolPack context from vpCreateContext.
vpIdentityMatrix is used to load a 4-by-4 identity matrix into the current transformation matrix. Use vpCurrentMatrix to set the current transformation matrix.
The return value is always VP_OK.
VolPack(3), vpCreateContext(3), vpCurrentMatrix(3), vpGetMatrix(3)