8667174067
The original code depends on side-effects of hasIdentityMatrix() to update the View transformation matrix. This change adds an explicit updateMatrix() method to make it more explicit when we are relying on the matrix having been updated. Among other things, getInverseMatrix() did not update the matrix so the caller had to know to call hasIdentityMatrix() first (which was always the case, but still potentially error-prone). Change-Id: I16d56f60a785a15c65f73e57b9aded9e4e3bca55