anchor.diff:    
     WebGL.RenderingContext glContext;
     Camera cam;
  +  
  +  double angleSpeed = 0.002;
     
     
     MotionEngine(WebGL.RenderingContext glContext, Camera camera){
  
positive.code:     window.animationFrame.then(update);
    }
    
    
    
   
  }
negative.code:     projectionMatrix.multiply(viewMatrix);
      
      //move();
      rotation();
      
      //moveCamForward();
      //moveCamBackward();
      //moveCamLeft();
  