Roll/Pitch/Yaw weird

CameraTestApp.cpp

#include "cinder/app/AppNative.h"
#include "cinder/gl/gl.h"

#include "cinder/Camera.h"
#include "cinder/params/Params.h"

using namespace ci;
using namespace ci::app;
using namespace std;

class CameraTestApp : public AppNative {
  public:
	void setup();
	void mouseDown( MouseEvent event );	
	void update();
	void draw();

private:
  ci::CameraPersp mCamera;
  float mPitch = 0.0f;
  float mYaw = 0.0f;
  float mRoll = 0.0f;
  ci::params::InterfaceGlRef  mParams;
};

void CameraTestApp::setup()
{
  mCamera.setPerspective( 60.0f, getWindowWidth() / (float)getWindowHeight(), 1.0f, 5000.0f );
  mCamera.setEyePoint( Vec3f( 0.0f, 0.0f, 300.0f ) );

  mParams = params::InterfaceGl::create( "Camera Stuff", Vec2i( 200, 200 ) );
  mParams->addParam( "Pitch", &mPitch ).step( M_PI / 100.0f );
  mParams->addParam( "Yaw", &mYaw ).step( M_PI / 100.0f );
  mParams->addParam( "Roll", &mRoll ).step( M_PI / 100.0f );
}

void CameraTestApp::mouseDown( MouseEvent event )
{
}

void CameraTestApp::update()
{
  Quatf orientation( mPitch, mYaw, mRoll );
  mCamera.setOrientation( orientation );
}

void CameraTestApp::draw()
{
	// clear out the window with black
	gl::clear( Color( 0, 0, 0 ) );

  gl::setMatrices( mCamera );

  for( int y = -10; y < 10; ++y )
  {
    for( int x = -10; x < 10; ++x )
    {
      gl::pushModelView();
      gl::color( lmap<float>( y, -10, 10, 0.0f, 1.0f ), 0.5f, 1.0f );
      gl::translate( Vec3f( x * 20.0f, y * 20.0f, 0.0f ) );
      gl::drawSolidCircle( Vec2f( 0.0f, 0.0f ), 8.0f );
      gl::popModelView();
    }
  }

  gl::pushModelView();
  gl::translate( Vec3f( -300.0f, 0.0f, 0.0f ) );
  gl::rotate( Vec3f( 0.0f, 90.0f, 0.0f ) );
  gl::drawSolidRect( Rectf( -200.0f, -200.0f, 200.0f, 200.0f ) );

  gl::popModelView();

  gl::pushModelView();
  gl::translate( Vec3f( 300.0f, 0.0f, 0.0f ) );
  gl::rotate( Vec3f( 0.0f, 90.0f, 0.0f ) );
  gl::drawSolidRect( Rectf( -200.0f, -200.0f, 200.0f, 200.0f ) );

  gl::popModelView();

  mParams->draw();
}

CINDER_APP_NATIVE( CameraTestApp, RendererGl )