public SkeletalAnimation()
{
InitializeComponent();
// Use helper class (defined in this sample project) to load the native assimp libraries
// IMPORTANT: See commend in the AssimpLoader class for details on how to prepare your project to use assimp library.
AssimpLoader.LoadAssimpNativeLibrary();
string fileName = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resources\\soldier.X");
LoadFileWithSkinnedAnimation(fileName);
var dragAndDropHelper = new DragAndDropHelper(ViewportBorder, ".*");
dragAndDropHelper.FileDropped += (sender, e) =>
{
LoadFileWithSkinnedAnimation(e.FileName);
};
// Stop the animation when user leaves this sample.
this.Unloaded += delegate(object sender, RoutedEventArgs args)
{
if (_assimpAnimationController != null)
{
_assimpAnimationController.StopAnimation();
_assimpAnimationController = null;
}
};
}
private void LoadFileWithSkinnedAnimation(string fileName)
{
InfoTextBox.Text = "";
// Create an instance of AssimpWpfImporter
var assimpWpfImporter = new AssimpWpfImporter();
Model3D readModel3D;
try
{
readModel3D = assimpWpfImporter.ReadModel3D(fileName, texturesPath: null); // we can also define a textures path if the textures are located in some other directory (this is parameter can be skipped, but is defined here so you will know that you can use it)
}
catch (Exception ex)
{
MessageBox.Show(string.Format("Error reading file:\r\n{0}\r\n\r\n{1}", fileName, ex.Message));
return;
}
_lastLoadedModel3D = readModel3D;
ModelSilhueteVisual3D.Children.Clear();
ModelSilhueteVisual3D.Children.Add(readModel3D.CreateModelVisual3D());
// Set camera to show the whole model
Camera1.TargetPosition = readModel3D.Bounds.GetCenterPosition();
Camera1.Distance = readModel3D.Bounds.GetDiagonalLength() * 1.2;
BoneMarkersVisual3D.Children.Clear();
// Stop current animation if it was running
if (_assimpAnimationController != null)
{
_assimpAnimationController.StopAnimation();
_assimpAnimationController = null;
}
_assimpScene = assimpWpfImporter.ImportedAssimpScene;
if (_assimpScene.AnimationCount == 0)
{
// No animation in the file
AnimationSelectionComboBox.IsEnabled = false;
AnimationSelectionComboBox.ItemsSource = new string[] { "(no animation defined)" };
AnimationSelectionComboBox.SelectedIndex = 0;
ShowBonesCheckBox.IsEnabled = false;
ShowBonesCheckBox.IsChecked = false;
AnimationSlider.IsEnabled = false;
StartStopAnimationButton.IsEnabled = false;
UpdateAnimationUI(0);
return;
}
AnimationSlider.IsEnabled = true;
StartStopAnimationButton.IsEnabled = true;
try
{
// Create AssimpAnimationController - it will play the keyframe and skeletal animation
_assimpAnimationController = new AssimpAnimationController(assimpWpfImporter);
_assimpAnimationController.AutoReverse = false;
_assimpAnimationController.AutoRepeat = true;
_assimpAnimationController.AfterFrameUpdated += OnAssimpAnimationControllerOnAfterFrameUpdated;
SetupAnimationUI();
UpdateBoneMarkersAndUI();
}
catch (Exception ex)
{
MessageBox.Show("Error starting animation:\r\n" + ex.Message);
return;
}
// Setup animation names
var animationNames = _assimpScene.Animations.Select(a => a.Name).ToList();
AnimationSelectionComboBox.IsEnabled = true;
AnimationSelectionComboBox.ItemsSource = animationNames;
int startupIndex = animationNames.IndexOf("Run"); // Start with "Run" animation if it exists
if (startupIndex < 0)
{
startupIndex = 0;
}
AnimationSelectionComboBox.SelectedIndex = startupIndex; // This will call ChangeAnimationName method
if (_assimpAnimationController.HasSkeletalAnimation)
{
ShowBonesCheckBox.IsEnabled = true;
ShowBonesCheckBox.ToolTip = null;
// In case ShowBonesCheckBox is checked then set model opacity to 0.8
UpdateModelOpacity();
}
else
{
// No skeletal animation (probably only keyframe animation)
ShowBonesCheckBox.IsEnabled = false;
ShowBonesCheckBox.IsChecked = false;
ShowBonesCheckBox.ToolTip = "This files does not define any skeletal animation.";
}
//StartAnimation();
}
