##### Ninja Library - Matrix Function

# njRotateY

Applies a matrix that gives a rotation around the Y axis

### FORMAT

`

  void njRotateY( *m, ang )
  NJS_MATRIX *m
  Angle ang

`

### PARAMETER

  `*m` | Destination matrix
  `ang` | Rotation angle

### RETURN

  None

### DESCRIPTION

  Applies a matrix that gives rotation around the Y axis to the matrix m. When parameter m is NULL, the current matrix will be the destination.

### EXAMPLE

      The following applies a matrix that gives rotation by 90 degrees
      around the Y axis to the current matrix.

      NJS_MATRIX stack[10];
      NJS_VIEW view;
      njInitMatrix(stack, 10);
      njInitView(&view);
      njSetView(&view);
      njClearMatrix();
      njPushMatrix(NULL);
      njRotateY(NULL, NJM_DEG_ANG(90));
      njPopMatrix(1);

### NOTE

  For a matrix [M] and multiplicative rotational matrix [R], [M] = [R] * [M]. Care must be taken with the order in which matrices are multiplied.

njRotateY

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