유니티 카메라 월드포지션 -> 캔버스 포지션

World Position to Canvas Position

    //월드 포지션 -> 캔버스 포지션
    public Vector2 WorldToCanvasPosition(Camera cam, Vector3 worldPos, RectTransform canvasRect)
    {
        Vector2 ViewportPosition = cam.WorldToViewportPoint(worldPos);    
        Vector2 WorldObject_CanvasPosition = new Vector2(         
        ((ViewportPosition.x * canvasRect.sizeDelta.x) - (canvasRect.sizeDelta.x * 0.5f)),      
        ((ViewportPosition.y * canvasRect.sizeDelta.y) - (canvasRect.sizeDelta.y * 0.5f)));     
        return WorldObject_CanvasPosition;
    }