public DXEventManager3DSample() { InitializeComponent(); Box1Visual3D.SetName("Box1Visual3D"); BoxesGroupVisual3D.SetName("BoxesGroupVisual3D"); Box2Visual3D.SetName("Box2Visual3D"); Box3Visual3D.SetName("Box3Visual3D"); Box4Visual3D.SetName("Box4Visual3D"); Line1.SetName("Line1"); Line2.SetName("Line2"); Rectangle1.SetName("Rectangle1"); var meshGeometry3D = new Ab3d.Meshes.SphereMesh3D(centerPosition: new Point3D(0, 0, 0), radius: 5, segments: 20, generateTextureCoordinates: false).Geometry; // The following method prepare InstanceData array with data for each instance (WorldMatrix and Color) InstanceData[] instancedData = DXEnginePerformance.InstancedMeshGeometry3DTest.CreateInstancesData(center: new Point3D(0, 0, 0), size: new Size3D(200, 50, 50), modelScaleFactor: 1, xCount: 10, yCount: 3, zCount: 3, useTransparency: false); // Create InstancedGeometryVisual3D with selected meshGeometry and InstancesData _instancedMeshGeometryVisual3D = new InstancedMeshGeometryVisual3D(meshGeometry3D); _instancedMeshGeometryVisual3D.InstancesData = instancedData; _instancedMeshGeometryVisual3D.SetName("InstancedMeshGeometryVisual3D"); _instancedMeshGeometryVisual3D.Transform = new TranslateTransform3D(0, 50, 0); MainViewport3D.Children.Add(_instancedMeshGeometryVisual3D); _selectedInstanceIndex = -1; var model3DGroup = new Model3DGroup(); model3DGroup.SetName("Model3DGroup"); var frozenModel3DGroup = new Model3DGroup(); frozenModel3DGroup.SetName("FrozenModel3DGroup"); var box1Material = new DiffuseMaterial(Brushes.LightPink); var box2Material = new DiffuseMaterial(Brushes.LightCyan); var boxModel3D = Ab3d.Models.Model3DFactory.CreateBox(new Point3D(-100, 2, 25), new Size3D(60, 4, 50), box2Material); frozenModel3DGroup.Children.Add(boxModel3D); var pyramidModel3D = Ab3d.Models.Model3DFactory.CreatePyramid(new Point3D(-100, 2, 20), new Size3D(20, 20, 20), box2Material); frozenModel3DGroup.Children.Add(pyramidModel3D); for (int i = 0; i < 5; i++) { var geometryModel3D = new GeometryModel3D(meshGeometry3D, box1Material); geometryModel3D.Transform = new TranslateTransform3D(-130 + i * 15, 5, 80); geometryModel3D.SetName("GroupedSphere_" + i.ToString()); model3DGroup.Children.Add(geometryModel3D); geometryModel3D = new GeometryModel3D(meshGeometry3D, box2Material); geometryModel3D.Transform = new TranslateTransform3D(-130 + i * 15, 10, 50); geometryModel3D.SetName("FrozenGroupedSphere_" + i.ToString()); frozenModel3DGroup.Children.Add(geometryModel3D); } frozenModel3DGroup.Freeze(); MainViewport3D.Children.Add(model3DGroup.CreateModelVisual3D()); MainViewport3D.Children.Add(frozenModel3DGroup.CreateModelVisual3D()); _dxEventManager3D = new DXEventManager3D(MainDXViewportView); RegisterEventSource(Box1Visual3D); RegisterEventSource(BoxesGroupVisual3D); RegisterEventSource(Line1); RegisterEventSource(Line2); RegisterEventSource(Rectangle1); RegisterEventSource(_instancedMeshGeometryVisual3D); RegisterEventSource(model3DGroup); RegisterEventSource(frozenModel3DGroup); // Prevent TransparentPlaneVisual3D to be used by hit-testing _dxEventManager3D.RegisterExcludedVisual3D(TransparentPlaneVisual3D); this.PreviewMouseMove += delegate(object sender, MouseEventArgs args) { var position = args.GetPosition(this); MousePositionTextBlock.Text = $"Mouse pos: {position.X:0} {position.Y:0}"; }; this.PreviewMouseDown += delegate(object sender, MouseButtonEventArgs e) { var position = e.GetPosition(this); if (position == _lastMouseDownPosition) { return; } System.Diagnostics.Debug.WriteLine("Mouse position: " + position.ToString()); _lastMouseDownPosition = position; }; // IMPORTANT: // It is very important to call Dispose method on DXSceneView after the control is not used any more (see help file for more info) this.Unloaded += (sender, args) => MainDXViewportView.Dispose(); }