private CompositionPropertySet _createSpotLightColorsProxy(SpotLight compositionSpotLight)
{
var lightProperties = compositionSpotLight.Properties;
var compositor = compositionSpotLight.Compositor;
lightProperties.InsertColor("InnerConeColor", Color.FromArgb(255, 255, 255, 255));
lightProperties.InsertColor("OuterConeColor", Color.FromArgb(255, 255, 255, 255));
lightProperties.InsertScalar("LightIntensity", 1f);
var innerConeColorExpression = compositor.CreateExpressionAnimation("ColorLerp(ColorRgb(0,0,0,0), target.InnerConeColor, target.LightIntensity)");
innerConeColorExpression.SetReferenceParameter("target", lightProperties);
var outerConeColorExpression = compositor.CreateExpressionAnimation("ColorLerp(ColorRgb(0,0,0,0), target.OuterConeColor, target.LightIntensity)");
outerConeColorExpression.SetReferenceParameter("target", lightProperties);
compositionSpotLight.StartAnimation("InnerConeColor", innerConeColorExpression);
compositionSpotLight.StartAnimation("OuterConeColor", outerConeColorExpression);
return(lightProperties);
}
private void GalleryItem_PointerEntered(object sender, PointerRoutedEventArgs e)
{
var frameworkElement = sender as FrameworkElement;
//Setup Animations for the current Image Visual
var element = ElementCompositionPreview.GetElementVisual(frameworkElement);
var scaleAnimation = _compositor.CreateVector3KeyFrameAnimation();
scaleAnimation.Duration = TimeSpan.FromMilliseconds(durationHover);
scaleAnimation.InsertKeyFrame(1f, new Vector3(1.1f, 1.1f, 1.1f));
element.CenterPoint = new Vector3(275f / 2, 275f / 2, 275f / 2);
element.StartAnimation("Scale", scaleAnimation);
var shadowBorder = (Grid)sender;
var shadow = _compositor.CreateDropShadow();
shadow.Color = Colors.DimGray;
var shadowBlurAnimation = _compositor.CreateScalarKeyFrameAnimation();
shadowBlurAnimation.Duration = TimeSpan.FromMilliseconds(durationHover);
shadowBlurAnimation.InsertKeyFrame(0f, 1f);
shadowBlurAnimation.InsertKeyFrame(1f, 18f);
shadow.StartAnimation(nameof(shadow.BlurRadius), shadowBlurAnimation);
var shadowOffsetAnimation = _compositor.CreateVector3KeyFrameAnimation();
shadowOffsetAnimation.Duration = TimeSpan.FromMilliseconds(durationHover);
shadowOffsetAnimation.InsertKeyFrame(1f, new Vector3(shadowDistance, shadowDistance, 0));
shadow.StartAnimation(nameof(Visual.Offset), shadowOffsetAnimation);
var sprite = _compositor.CreateSpriteVisual();
sprite.Size = new System.Numerics.Vector2((float)shadowBorder.ActualWidth, (float)shadowBorder.ActualHeight);
sprite.Shadow = shadow;
ElementCompositionPreview.SetElementChildVisual((UIElement)shadowBorder.FindName("Shadow"), sprite);
//Move the spotlight to the center of the hovered light
var ttv = frameworkElement.TransformToVisual(galleryPage);
Point screenCoords = ttv.TransformPoint(new Point(0, 0));
var mouse_x = screenCoords.X + frameworkElement.ActualWidth / 2;
var mouse_y = screenCoords.Y + frameworkElement.ActualHeight / 2;
var elementOffset = new Vector3((float)mouse_x, (float)mouse_y, spotlight_z); // EF: Need to calculate tile offset here
var spotlightOffsetAnimation = _compositor.CreateVector3KeyFrameAnimation();
spotlightOffsetAnimation.Duration = TimeSpan.FromMilliseconds(durationHover);
spotlightOffsetAnimation.InsertKeyFrame(1f, elementOffset);
spotLight.StartAnimation(nameof(Visual.Offset), spotlightOffsetAnimation);
var ambientLightColorAnimation = _compositor.CreateColorKeyFrameAnimation();
ambientLightColorAnimation.Duration = TimeSpan.FromMilliseconds(durationHover);
ambientLightColorAnimation.InsertKeyFrame(1f, ambientLightColorOn);
ambientLight.StartAnimation(nameof(AmbientLight.Color), ambientLightColorAnimation);
}
private void UpdateAnimations()
{
Vector2 sizeLightBounds = new Vector2((float)RootPanel.ActualWidth, (float)RootPanel.ActualHeight);
Vector3KeyFrameAnimation lightPositionAnimation;
ColorKeyFrameAnimation lightColorAnimation;
ComboBoxItem item = LightingSelection.SelectedValue as ComboBoxItem;
switch ((LightingTypes)item.Tag)
{
case LightingTypes.PointDiffuse:
case LightingTypes.PointSpecular:
{
float zDistance = 50f;
// Create the light position animation
lightPositionAnimation = _compositor.CreateVector3KeyFrameAnimation();
lightPositionAnimation.InsertKeyFrame(0f, new Vector3(0f, 0f, zDistance));
lightPositionAnimation.InsertKeyFrame(.25f, new Vector3(sizeLightBounds.X * .2f, sizeLightBounds.Y * .5f, zDistance));
lightPositionAnimation.InsertKeyFrame(.50f, new Vector3(sizeLightBounds.X * .75f, sizeLightBounds.Y * .5f, zDistance));
lightPositionAnimation.InsertKeyFrame(.75f, new Vector3(sizeLightBounds.X * .2f, sizeLightBounds.Y * .2f, zDistance));
lightPositionAnimation.InsertKeyFrame(1f, new Vector3(0f, 0f, zDistance));
lightPositionAnimation.Duration = TimeSpan.FromMilliseconds(7500);
lightPositionAnimation.IterationBehavior = AnimationIterationBehavior.Forever;
lightColorAnimation = _compositor.CreateColorKeyFrameAnimation();
lightColorAnimation.InsertKeyFrame(0f, Colors.White);
lightColorAnimation.InsertKeyFrame(.33f, Colors.White);
lightColorAnimation.InsertKeyFrame(.66f, Colors.Yellow);
lightColorAnimation.InsertKeyFrame(1f, Colors.White);
lightColorAnimation.Duration = TimeSpan.FromMilliseconds(20000);
lightColorAnimation.IterationBehavior = AnimationIterationBehavior.Forever;
_pointLight.StartAnimation("Offset", lightPositionAnimation);
_pointLight.StartAnimation("Color", lightColorAnimation);
}
break;
case LightingTypes.SpotLightDiffuse:
case LightingTypes.SpotLightSpecular:
{
// Create the light position animation
lightPositionAnimation = _compositor.CreateVector3KeyFrameAnimation();
lightPositionAnimation.InsertKeyFrame(0f, new Vector3(0f, 0f, 100f));
lightPositionAnimation.InsertKeyFrame(.33f, new Vector3(sizeLightBounds.X * .5f, sizeLightBounds.Y * .5f, 200f));
lightPositionAnimation.InsertKeyFrame(.66f, new Vector3(sizeLightBounds.X, sizeLightBounds.Y * .5f, 400f));
lightPositionAnimation.InsertKeyFrame(1f, new Vector3(0f, 0f, 100f));
lightPositionAnimation.Duration = TimeSpan.FromMilliseconds(7500);
lightPositionAnimation.IterationBehavior = AnimationIterationBehavior.Forever;
lightColorAnimation = _compositor.CreateColorKeyFrameAnimation();
lightColorAnimation.InsertKeyFrame(0f, Colors.White);
lightColorAnimation.InsertKeyFrame(.33f, Colors.White);
lightColorAnimation.InsertKeyFrame(.66f, Colors.Yellow);
lightColorAnimation.InsertKeyFrame(1f, Colors.White);
lightColorAnimation.Duration = TimeSpan.FromMilliseconds(20000);
lightColorAnimation.IterationBehavior = AnimationIterationBehavior.Forever;
_spotLight.StartAnimation("Offset", lightPositionAnimation);
_spotLight.StartAnimation("InnerConeColor", lightColorAnimation);
}
break;
case LightingTypes.DistantDiffuse:
case LightingTypes.DistantSpecular:
{
// Animate the light direction
Vector3 position = new Vector3(0, 0, 100);
float offCenter = 700f;
Vector3KeyFrameAnimation lightDirectionAnimation = _compositor.CreateVector3KeyFrameAnimation();
lightDirectionAnimation.InsertKeyFrame(0f, Vector3.Normalize(new Vector3(0, 0, 0) - position));
lightDirectionAnimation.InsertKeyFrame(.25f, Vector3.Normalize(new Vector3(offCenter, 0, 0) - position));
lightDirectionAnimation.InsertKeyFrame(.5f, Vector3.Normalize(new Vector3(-offCenter, offCenter, 0) - position));
lightDirectionAnimation.InsertKeyFrame(.75f, Vector3.Normalize(new Vector3(0, -offCenter, 0) - position));
lightDirectionAnimation.InsertKeyFrame(1f, Vector3.Normalize(new Vector3(0, 0, 0) - position));
lightDirectionAnimation.Duration = TimeSpan.FromMilliseconds(7500);
lightDirectionAnimation.IterationBehavior = AnimationIterationBehavior.Forever;
_distantLight.StartAnimation("Direction", lightDirectionAnimation);
}
break;
default:
break;
}
}
