njRotateViewZRelative | Japanese
    <-|INDEX|->
Rotates the view around the Z axis (relative rotation).

### FORMAT

      #include <Ninja.h>

      void njRotateViewZRelative(*v, ang)
      NJS_VIEW *v
      Angle ang

### PARAMETERS

NJS_VIEW *v
  view structure pointer
Angle ang
  rotation angle (relative amount of rotation)

### RETURN VALUE

  None

### FUNCTION

- Rotates the view by a relative amount around the Z axis.

### EXAMPLE

  Rotates the view located at (3000, 0, 0) with orientation (0, 0, -1) (behind the screen) by 90 degrees around the Z axis.

      #define VIEW_PX 3000.f
      #define VIEW_PY 0.f
      #define VIEW_PZ 0.f
      #define VIEW_VX 0.f
      #define VIEW_VY 0.f
      #define VIEW_VZ -1.f
      #define VIEW_ROLL 0

      NJS_VIEW v;

      v.px = VIEW_PX;
      v.py = VIEW_PY;
      v.pz = VIEW_PZ;
      v.vx = VIEW_VX;
      v.vy = VIEW_VY;
      v.vz = VIEW_VZ;
      v.roll = NJM_DEG_ANG(VIEW_ROLL);

      njRotateViewZRelative(&v, NJM_DEG_ANG(90));
      njSetView(&v);
      njClearMatrix();

### NOTES

- When parameter v is NULL, the current matrix is rotated.

### RELATED TOPICS

  njSetView() njClearMatrix() NJM_DEG_ANG()

njRotateViewZRelative |
    <-|INDEX|->