private Visual3DAnimationNode CreateAnimationNode(Visual3D visual, IList <Position3DKeyFrame> positionKeyFrames)
{
var animationNode = new Visual3DAnimationNode(visual);
foreach (var positionKeyFrame in positionKeyFrames)
{
animationNode.PositionTrack.Keys.Add(new Position3DKeyFrame(positionKeyFrame.FrameNumber, positionKeyFrame.Position));
}
return(animationNode);
}
private void StartAnimation1()
{
// Create a new CameraAnimationNode that will animate the Camera1
var objectAnimationNode = new Visual3DAnimationNode(AnimatedObjectVisual3D);
// NOTE:
// To animate Model3DGroup or GeometryModel3D create Model3DAnimationNode instead of Visual3DAnimationNode
// When Visual3DAnimationNode (or Model3DAnimationNode) is created, the RotationCenterPosition is set to the center of the specified 3D object.
// This makes the rotation and scale animation rotate and scale from the center of the object.
// In our case we want to only scale upwards (not in all directions).
// To do that we just adjust the RotationCenterPosition so that its Y position is at the bottom of the 3D object (y = 0)
objectAnimationNode.RotationCenterPosition = new Point3D(objectAnimationNode.RotationCenterPosition.X, 0, objectAnimationNode.RotationCenterPosition.Z);
// adjust number of frames between each position key frame so that the whole position animation takes 500 frames (5 seconds)
int framesPerPosition = 500 / _usedAnimationPositions.Count;
// Create key frames for position animation
for (var i = 0; i < _usedAnimationPositions.Count; i++)
{
objectAnimationNode.PositionTrack.Keys.Add(new Position3DKeyFrame(i * framesPerPosition, _usedAnimationPositions[i]));
}
objectAnimationNode.PositionTrack.EasingFunction = Ab3d.Animation.EasingFunctions.QuadraticEaseInOutFunction;
// After position animation is completed, we start simple rotation and scale animation
double rotationScaleStartFrame = objectAnimationNode.PositionTrack.LastFrame;
objectAnimationNode.RotationTrack.Keys.Add(new AnglesRotationKeyFrame(0, 0, 0));
objectAnimationNode.RotationTrack.Keys.Add(new AnglesRotationKeyFrame(rotationScaleStartFrame, 0, 0));
objectAnimationNode.RotationTrack.Keys.Add(new AnglesRotationKeyFrame(rotationScaleStartFrame + 200, 0, 180));
objectAnimationNode.RotationTrack.SetEasingFunctionToAllKeys(Ab3d.Animation.EasingFunctions.QuadraticEaseInOutFunction);
objectAnimationNode.ScaleTrack.Keys.Add(new Vector3DKeyFrame(0, new Vector3D(1, 1, 1))); // No scale until frame 600
objectAnimationNode.ScaleTrack.Keys.Add(new Vector3DKeyFrame(rotationScaleStartFrame, new Vector3D(1, 1, 1))); // At frame 600 start scaling ...
objectAnimationNode.ScaleTrack.Keys.Add(new Vector3DKeyFrame(rotationScaleStartFrame + 100, new Vector3D(3, 3, 3))); // ... to 3x the size ...
objectAnimationNode.ScaleTrack.Keys.Add(new Vector3DKeyFrame(rotationScaleStartFrame + 200, new Vector3D(1, 1, 1))); // ... and then back to original size
objectAnimationNode.ScaleTrack.SetEasingFunctionToAllKeys(Ab3d.Animation.EasingFunctions.QuadraticEaseInOutFunction);
// Set this animation to revert but not to repeat
_animationController.AutoReverse = false;
_animationController.AutoRepeat = false;
// Use StartAnimation helper method to stop current animation and start the animation defined in cameraAnimationNode
StartAnimation(objectAnimationNode);
}
public AnimationSettings()
{
InitializeComponent();
_selectedEasingFunction = GetSelectedEasingFunction();
if (!DesignerProperties.GetIsInDesignMode(this))
{
UpdateEasingGraph();
}
_animationController = new AnimationController();
// After each animation frame we will update the position of the red line that shows where the animation progress is
_animationController.AfterFrameUpdated += delegate(object sender, EventArgs args) { UpdateCurrentTimeLine(); };
_visual3DAnimationNode = new Visual3DAnimationNode(Sphere1);
_visual3DAnimationNode.PositionTrack.Keys.Add(new Position3DKeyFrame(0, new Point3D(0, 0, 0)));
_visual3DAnimationNode.PositionTrack.Keys.Add(new Position3DKeyFrame(120, new Point3D(0, 100, 0)));
_animationController.AnimationNodes.Add(_visual3DAnimationNode);
_animationController.FramesPerSecond = 60;
_animationController.AutoRepeat = true;
_animationController.AutoReverse = true;
_visual3DAnimationNode.PositionTrack.EasingFunction = _selectedEasingFunction;
_animationController.StartAnimation(subscribeToRenderingEvent: true);
_animationController.AnimationStopped += delegate(object sender, EventArgs args)
{
UpdateStartStopAnimationButton();
};
this.Unloaded += delegate(object sender, RoutedEventArgs args)
{
// AnimationController will stop animating when it is collected by GC, but anyway it is better to stop the animation when we leave this sample
_animationController.StopAnimation();
};
}
