text: /// @ref gtx_perpendicular
  /// @file glm/gtx/perpendicular.inl
  
  namespace glm
  {
  	template<typename vecType> 
  	GLM_FUNC_QUALIFIER vecType perp
  	(
  		vecType const & x, 
  		vecType const & Normal
  	)
  	{
  		return x - proj(x, Normal);
  	}
  }//namespace glm
  