private void inputProcess(Component_InputProcessing sender, UIControl playScreen, Component_GameMode gameMode, InputMessage message)
        {
            //mouse down
            var mouseDown = message as InputMessageMouseButtonDown;

            if (mouseDown != null && mouseDown.Button == EMouseButtons.Left)
            {
                last_selected_obj = UTools.GetObjectByCursor(SimulationApp.MainViewport, out ray, out pos);
                if (last_selected_obj != null && pos != null)
                {
                    OnObjectClick?.Invoke(last_selected_obj);
                    //ScreenMessages.Add("pos = " + pos.Value.ToString());
                    //ScreenMessages.Add("Obj = " + (last_selected_obj.TransformV.Position - pos.Value).ToString());
                }
            }
        }
        private void SceneRenderEvent(Component_Scene scene, Viewport viewport)
        {
            // Find object by the cursor.
            //var obj = GetObjectByCursor(viewport);

            // Draw selection border.
            if (last_selected_obj != null)
            {
                //	viewport.Simple3DRenderer.SetColor(new ColorValue(0.2, 0.1, 1));
                //	viewport.Simple3DRenderer.AddBounds(last_selected_obj.SpaceBounds.CalculatedBoundingBox, false,  4);
                UTools.ShowBoxAroundObject(last_selected_obj, viewport);
                if (pos != null)
                {
                    UTools.DrawSphere(viewport, (Vector3)pos, 0.01);
                }
            }
        }