private void ConstructWalls()
{
// Connect the light controls to the walls
LightControl1.AddTargetVisual(_sceneContainer);
LightControl2.AddTargetVisual(_sceneContainer);
LightControl1.CoordinateSpace = _worldSpaceContainer;
LightControl2.CoordinateSpace = _worldSpaceContainer;
// Setup the perspective transform
UpdatePerspective();
float boxWidth = 6000.0f;
float boxHeight = 2000.0f;
float boxDepth = 4000.0f;
CompositionColorBrush colorBrush = _compositor.CreateColorBrush(Color.FromArgb(255, 101, 104, 112));
// Create the walls
SpriteVisual bottomWall = _compositor.CreateSpriteVisual();
bottomWall.Size = new Vector2(boxWidth, boxDepth);
bottomWall.Brush = colorBrush;
bottomWall.BackfaceVisibility = CompositionBackfaceVisibility.Hidden;
bottomWall.TransformMatrix = Matrix4x4.CreateRotationX((float)Math.PI / 2, new Vector3(boxWidth / 2, boxDepth / 2, 0));
bottomWall.Offset = new Vector3(-boxWidth / 2, -boxDepth / 2 + boxHeight / 2, 0);
_sceneContainer.Children.InsertAtTop(bottomWall);
SpriteVisual backWall = _compositor.CreateSpriteVisual();
backWall.Size = new Vector2(boxWidth, boxHeight);
backWall.Brush = colorBrush;
backWall.BackfaceVisibility = CompositionBackfaceVisibility.Hidden;
backWall.Offset = new Vector3(-boxWidth / 2, -boxHeight / 2, -boxDepth / 2);
_sceneContainer.Children.InsertAtBottom(backWall);
}
private async void SamplePage_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
ConstructWalls();
CompositionDrawingSurface normalMap = await SurfaceLoader.LoadFromUri(new Uri("ms-appx:///Samples/SDK 14393/LightSpheres/SphericalWithMask.png"));
CompositionSurfaceBrush normalBrush = _compositor.CreateSurfaceBrush(normalMap);
LightControl1.Offset = new Vector3(-77, 21, -768);
LightControl1.LightColor.Color = Color.FromArgb(255, 255, 255, 255);
LightControl1.LinearAttenuation.Value = 29;
LightControl1.ConstantAttenuation.Value = 50;
LightControl2.QuadraticAttenuation.Value = 0;
LightControl2.Offset = new Vector3(2047, 500, -676);
LightControl2.LightColor.Color = Color.FromArgb(255, 255, 0, 255);
LightControl2.LinearAttenuation.Value = 0;
LightControl2.ConstantAttenuation.Value = 9;
LightControl2.QuadraticAttenuation.Value = 100;
// Create the colors for the spheres
Color[] colors = new Color[]
{
Color.FromArgb(255, 60, 60, 60), // Black
Color.FromArgb(255, 200, 200, 200), // White
Color.FromArgb(255, 139, 255, 211), // Green
Color.FromArgb(255, 160, 244, 255), // Blue
Color.FromArgb(255, 253, 99, 105), // Red
Color.FromArgb(255, 206, 181, 251), // Purple
Color.FromArgb(255, 67, 228, 124), // Bright Green
Color.FromArgb(255, 248, 216, 148), // Yellow
Color.FromArgb(255, 228, 190, 198), // Mauve
};
// Create the lighting effect for the spheres
IGraphicsEffect graphicsEffect = new CompositeEffect()
{
Mode = CanvasComposite.DestinationIn,
Sources =
{
new ArithmeticCompositeEffect()
{
Source1Amount = .9f,
Source2Amount = 1f,
MultiplyAmount = 0,
Source1 = new ArithmeticCompositeEffect()
{
MultiplyAmount = .5f,
Source1Amount = .5f,
Source2Amount = 0f,
Source1 = new ArithmeticCompositeEffect()
{
MultiplyAmount = 1f,
Source1Amount = 0f,
Source2Amount = 0f,
Source1 = new ColorSourceEffect()
{
Name = "Color",
},
Source2 = new SceneLightingEffect()
{
Name = "Ambient",
AmbientAmount = 1f,
DiffuseAmount = 0f,
SpecularAmount = 0f,
NormalMapSource = new CompositionEffectSourceParameter("ImageSource"),
}
},
Source2 = new SceneLightingEffect()
{
Name = "Diffuse",
AmbientAmount = 0f,
DiffuseAmount = 1f,
SpecularAmount = 0f,
NormalMapSource = new CompositionEffectSourceParameter("ImageSource"),
}
},
Source2 = new SceneLightingEffect()
{
Name = "Specular",
AmbientAmount = 0,
DiffuseAmount = 0f,
SpecularAmount = .1f,
SpecularShine = 5,
NormalMapSource = new CompositionEffectSourceParameter("ImageSource"),
}
},
new CompositionEffectSourceParameter("ImageSource"),
}
};
CompositionEffectFactory effectFactory = _compositor.CreateEffectFactory(graphicsEffect,
new string[] { "Color.Color", "Diffuse.DiffuseAmount",
"Specular.SpecularAmount", "Specular.SpecularShine" });
// Create the spheres
int xOffset = 0;
foreach (Color color in colors)
{
CompositionEffectBrush brush = effectFactory.CreateBrush();
brush.Properties.InsertColor("Color.Color", color);
brush.SetSourceParameter("ImageSource", normalBrush);
_brushList.Add(brush);
SpriteVisual sprite = _compositor.CreateSpriteVisual();
sprite.Brush = brush;
sprite.Size = new Vector2(200, 200);
sprite.Offset = new Vector3(xOffset, 0, 0) + _defaultSphereOffset;
_sceneContainer.Children.InsertAtTop(sprite);
_sphereList.Add(sprite);
xOffset += _defaultSphereSpace;
LightControl1.AddTargetVisual(sprite);
LightControl2.AddTargetVisual(sprite);
}
UpdateAnimationState();
}
