/** performs the gl camera transformations for the right eye */
public void translateRightEye(GL gl, GLU glu, GLUT glut) {
// calculate the right vector
Vector3d right = new Vector3d();
Vector3d temp1 = (Vector3d) cameraTarget.clone();
temp1.scale(-1);
Vector3d temp2 = (Vector3d) cameraPosition.clone();
temp2.add(temp1);
right.cross(cameraUp, temp2);
right.normalize();
right.scale(eyespread / 2.);
glu.gluLookAt(
right.x + cameraPosition.x,
right.y + cameraPosition.y,
right.z + cameraPosition.z,
right.x + cameraTarget.x,
right.y + cameraTarget.y,
right.z + cameraTarget.z,
cameraUp.x,
cameraUp.y,
cameraUp.z);
}