void LVRMainWindow::assertToggles()
{
    togglePoints(m_actionShow_Points->isChecked());
    toggleNormals(m_actionShow_Normals->isChecked());
    toggleMeshes(m_actionShow_Mesh->isChecked());
    toggleWireframe(m_actionShow_Wireframe->isChecked());
}
	virtual void keyPressed(uint32_t keyCode)
	{
		switch (keyCode)
		{
		case KEY_N:
		case GAMEPAD_BUTTON_A:
			toggleNormals();
			break;
		}
	}