Returns a new 3x3 matrix with one row replaced by a new vector.
Original signature is 'GLKMatrix3 GLKMatrix3SetRow ( GLKMatrix3 matrix, int row, GLKVector3 vector );'
Available in OS X x0.8 and later.
public static GLKMatrix3 SetRow (GLKMatrix3 matrix, int row, GLKVector3 vector) { matrix [row] = vector.x; matrix [row + 3] = vector.y; matrix [row + 6] = vector.z; return matrix; }