/// <summary>
/// Initializes a new instance of the <see cref="ImageBillboard"/> class.
/// </summary>
/// <param name="texture">The texture.</param>
public ImageBillboard(PackedTexture texture)
{
Texture = texture;
Size = new Vector2F(1, 1);
_alphaTest = 0;
_blendMode = 1;
}
/// <summary>
/// Initializes a new instance of the <see cref="ImageBillboard"/> class.
/// </summary>
/// <param name="texture">The texture.</param>
public ImageBillboard(PackedTexture texture)
{
Texture = texture;
Size = new Vector2F(1, 1);
_alphaTest = 0;
_blendMode = 1;
}
protected virtual void CloneCore(LensFlareElement source)
{
Color = source.Color;
Distance = source.Distance;
Origin = source.Origin;
Rotation = source.Rotation;
Scale = source.Scale;
Texture = source.Texture;
}
/// <summary>
/// Initializes a new instance of the <see cref="LensFlareElement" /> class.
/// </summary>
/// <param name="distance">
/// The distance of the element: 0 = light source, 1 = center of screen.
/// Distance can be negative or greater than 1. The default value is 0.
/// </param>
/// <param name="scale">
/// The scale of the element relative to <see cref="LensFlare.Size"/>.
/// </param>
/// <param name="rotation">
/// The angle (in radians) to rotate the element around its center. <see cref="float.NaN"/>
/// can be set to automatically rotate the element depending on the position of the light
/// source.
/// </param>
/// <param name="color">The color of the element.</param>
/// <param name="origin">
/// The origin relative to the image, where (0, 0) is the upper-left corner of the image and
/// (1, 1) is the lower-right corner of the image.
/// </param>
/// <param name="texture">The texture containing the image.</param>
public LensFlareElement(float distance, Vector2F scale, float rotation, Color color, Vector2F origin, PackedTexture texture)
{
Distance = distance;
Scale = scale;
Rotation = rotation;
Color = color;
Origin = origin;
Texture = texture;
}
public BillboardSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
var delegateGraphicsScreen = new DelegateGraphicsScreen(GraphicsService)
{
RenderCallback = Render,
};
GraphicsService.Screens.Insert(0, delegateGraphicsScreen);
// Add a custom game object which controls the camera.
_cameraObject = new CameraObject(Services);
GameObjectService.Objects.Add(_cameraObject);
// In this example we need three renderers:
// The MeshRenderer handles MeshNodes.
_meshRenderer = new MeshRenderer();
// The BillboardRenderer handles BillboardNodes and ParticleSystemNodes.
_billboardRenderer = new BillboardRenderer(GraphicsService, 2048);
// The DebugRenderer is used to draw text.
var spriteFont = UIContentManager.Load<SpriteFont>("UI Themes/BlendBlue/Default");
_debugRenderer = new DebugRenderer(GraphicsService, spriteFont);
// Create a new empty scene.
_scene = new Scene();
// Add the camera node to the scene.
_scene.Children.Add(_cameraObject.CameraNode);
// Add a few models to the scene.
var sandbox = ContentManager.Load<ModelNode>("Sandbox/Sandbox").Clone();
_scene.Children.Add(sandbox);
// Add some lights to the scene which have the same properties as the lights
// of BasicEffect.EnableDefaultLighting().
SceneSample.InitializeDefaultXnaLights(_scene);
var texture = new PackedTexture(ContentManager.Load<Texture2D>("Billboard/BillboardReference"));
// ----- View plane-aligned billboards with variations.
// View plane-aligned billboards are rendered parallel to the screen.
// The up-axis of the BillboardNode determines the up direction of the
// billboard.
var pose0 = new Pose(new Vector3F(-9, 1.0f, 1.5f));
var pose1 = pose0;
var billboard = new ImageBillboard(texture);
var billboardNode = new BillboardNode(billboard);
billboardNode.Name = "View plane-aligned\nVarying color\nVarying alpha";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
billboardNode.Color = new Vector3F(1, 0, 0);
billboardNode.Alpha = 0.9f;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
billboardNode.Color = new Vector3F(0, 1, 0);
billboardNode.Alpha = 0.7f;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
billboardNode.Color = new Vector3F(0, 0, 1);
billboardNode.Alpha = 0.3f;
_scene.Children.Add(billboardNode);
// ----- View plane-aligned billboards with different blend modes
// blend mode = 0 ... additive blend
// blend mode = 1 ... alpha blend
pose0.Position.X += 2;
pose1 = pose0;
billboard = new ImageBillboard(texture);
billboard.BlendMode = 0.0f;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "View plane-aligned\nVarying blend mode";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboard = new ImageBillboard(texture);
billboard.BlendMode = 0.333f;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboard = new ImageBillboard(texture);
billboard.BlendMode = 0.667f;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboard = new ImageBillboard(texture);
billboard.BlendMode = 1.0f;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
// ----- View plane-aligned billboards with alpha test
pose0.Position.X += 2;
pose1 = pose0;
billboard = new ImageBillboard(texture);
billboard.AlphaTest = 0.9f;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "View plane-aligned\nVarying reference alpha";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboard = new ImageBillboard(texture);
billboard.AlphaTest = 0.667f;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboard = new ImageBillboard(texture);
billboard.AlphaTest = 0.333f;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboard = new ImageBillboard(texture);
billboard.AlphaTest = 0.0f;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
// ----- View plane-aligned billboards with different scale and rotation
pose0.Position.X += 2;
pose1 = pose0;
billboard = new ImageBillboard(texture);
billboard.Orientation = BillboardOrientation.ViewPlaneAligned;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "View plane-aligned\nVarying scale\nVarying rotation";
billboardNode.PoseWorld = pose1;
billboardNode.ScaleLocal = new Vector3F(0.4f);
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = billboardNode.Clone();
billboardNode.Name = null;
billboardNode.PoseWorld = pose1 * new Pose(Matrix33F.CreateRotationZ(MathHelper.ToRadians(-15)));
billboardNode.ScaleLocal = new Vector3F(0.6f);
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = billboardNode.Clone();
billboardNode.Name = null;
billboardNode.PoseWorld = pose1 * new Pose(Matrix33F.CreateRotationZ(MathHelper.ToRadians(-30)));
billboardNode.ScaleLocal = new Vector3F(0.8f);
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = billboardNode.Clone();
billboardNode.Name = null;
billboardNode.PoseWorld = pose1 * new Pose(Matrix33F.CreateRotationZ(MathHelper.ToRadians(-45)));
billboardNode.ScaleLocal = new Vector3F(1.0f);
_scene.Children.Add(billboardNode);
// ----- Viewpoint-oriented billboards
// Viewpoint-orientated billboards always face the player. (The face normal
// points directly to the camera.)
pose0.Position.X += 2;
pose1 = pose0;
billboard = new ImageBillboard(texture);
billboard.Orientation = BillboardOrientation.ViewpointOriented;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "Viewpoint-oriented";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
// ----- Screen-aligned billboards
// View plane-aligned billboards and screen-aligned billboards are similar. The
// billboards are rendered parallel to the screen. The orientation can be changed
// by rotating the BillboardNode. The difference is that the orientation of view
// plane-aligned billboards is relative to world space and the orientation of
// screen-aligned billboards is relative to view space.
// Screen-aligned billboards are, for example, used for text label.
pose0.Position.X += 2;
pose1 = pose0;
billboard = new ImageBillboard(texture);
billboard.Orientation = BillboardOrientation.ScreenAligned;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "Screen-aligned";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
// ----- Axial, view plane-aligned billboards
pose0.Position.X += 2;
pose1 = pose0;
billboard = new ImageBillboard(texture);
billboard.Orientation = BillboardOrientation.AxialViewPlaneAligned;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "Axial, view plane-aligned";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = billboardNode.Clone();
billboardNode.Name = null;
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
// ----- Axial, viewpoint-oriented billboards
pose0.Position.X += 2;
pose1 = pose0;
billboard = new ImageBillboard(texture);
billboard.Orientation = BillboardOrientation.AxialViewpointOriented;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "Axial, viewpoint-oriented";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
// ----- World-oriented billboards
// World-oriented billboards have a fixed orientation in world space. The
// orientation is determine by the BillboardNode.
pose0.Position.X += 2;
pose1 = pose0;
pose1.Orientation *= Matrix33F.CreateRotationY(0.2f);
billboard = new ImageBillboard(texture);
billboard.Orientation = BillboardOrientation.WorldOriented;
billboardNode = new BillboardNode(billboard);
billboardNode.Name = "World-oriented";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
pose1.Orientation *= Matrix33F.CreateRotationY(0.2f);
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1 * new Pose(Matrix33F.CreateRotationZ(MathHelper.ToRadians(15)));
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
pose1.Orientation *= Matrix33F.CreateRotationY(0.2f);
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1 * new Pose(Matrix33F.CreateRotationZ(MathHelper.ToRadians(30)));
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
pose1.Orientation *= Matrix33F.CreateRotationY(0.2f);
billboardNode = new BillboardNode(billboard);
billboardNode.PoseWorld = pose1 * new Pose(Matrix33F.CreateRotationZ(MathHelper.ToRadians(45)));
_scene.Children.Add(billboardNode);
// ----- Animated billboards
// DigitalRune Graphics supports "texture atlases". I.e. textures can be packed
// together into a single, larger texture file. A PackedTexture can describe a
// single texture packed into a texture atlas or a tile set packed into a
// texture atlas. In this example the "beeWingFlap" is a set of three tiles.
// Tile sets can be used for sprite animations. (The animation is set below in
// Update().)
pose0.Position.X += 2;
pose1 = pose0;
texture = new PackedTexture("Bee", ContentManager.Load<Texture2D>("Particles/beeWingFlap"), Vector2F.Zero, Vector2F.One, 3, 1);
_animatedBillboard = new ImageBillboard(texture);
billboardNode = new BillboardNode(_animatedBillboard);
billboardNode.Name = "Animated billboards";
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(_animatedBillboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
pose1.Position.Z -= 1;
billboardNode = new BillboardNode(_animatedBillboard);
billboardNode.PoseWorld = pose1;
_scene.Children.Add(billboardNode);
// Use DebugRenderer to draw node names above billboard nodes.
foreach (var node in _scene.GetDescendants().OfType<BillboardNode>())
_debugRenderer.DrawText(node.Name, node.PoseWorld.Position + new Vector3F(0, 1, 0), new Vector2F(0.5f), Color.Yellow, false);
}
/// <summary>
/// Initializes a new instance of the <see cref="LensFlareElement" /> class.
/// </summary>
/// <param name="distance">
/// The distance of the element: 0 = light source, 1 = center of screen.
/// Distance can be negative or greater than 1. The default value is 0.
/// </param>
/// <param name="scale">
/// The scale of the element relative to <see cref="LensFlare.Size"/>.
/// </param>
/// <param name="rotation">
/// The angle (in radians) to rotate the element around its center. <see cref="float.NaN"/>
/// can be set to automatically rotate the element depending on the position of the light
/// source.
/// </param>
/// <param name="color">The color of the element.</param>
/// <param name="origin">
/// The origin relative to the image, where (0, 0) is the upper-left corner of the image and
/// (1, 1) is the lower-right corner of the image.
/// </param>
/// <param name="texture">The texture containing the image.</param>
public LensFlareElement(float distance, Vector2F scale, float rotation, Color color, Vector2F origin, PackedTexture texture)
{
Distance = distance;
Scale = scale;
Rotation = rotation;
Color = color;
Origin = origin;
Texture = texture;
}
/// <summary>
/// Initializes a new instance of the <see cref="LensFlareElement" /> class.
/// </summary>
/// <param name="distance">
/// The distance of the element: 0 = light source, 1 = center of screen.
/// Distance can be negative or greater than 1. The default value is 0.
/// </param>
/// <param name="scale">
/// The scale of the element relative to <see cref="LensFlare.Size"/>.
/// </param>
/// <param name="rotation">
/// The angle (in radians) to rotate the element around its center. <see cref="float.NaN"/>
/// can be set to automatically rotate the element depending on the position of the light
/// source.
/// </param>
/// <param name="color">The color of the element.</param>
/// <param name="origin">
/// The origin relative to the image, where (0, 0) is the upper-left corner of the image and
/// (1, 1) is the lower-right corner of the image.
/// </param>
/// <param name="texture">The texture containing the image.</param>
public LensFlareElement(float distance, float scale, float rotation, Color color, Vector2F origin, PackedTexture texture)
: this(distance, new Vector2F(scale), rotation, color, origin, texture)
{
}
protected virtual void CloneCore(LensFlareElement source)
{
Color = source.Color;
Distance = source.Distance;
Origin = source.Origin;
Rotation = source.Rotation;
Scale = source.Scale;
Texture = source.Texture;
}
private readonly LensFlareRenderer _lensFlareRenderer; // Handles LensFlareNodes.
public LensFlareSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
var delegateGraphicsScreen = new DelegateGraphicsScreen(GraphicsService)
{
RenderCallback = Render,
};
GraphicsService.Screens.Insert(0, delegateGraphicsScreen);
// Add a custom game object which controls the camera.
_cameraObject = new CameraObject(Services);
GameObjectService.Objects.Add(_cameraObject);
// Create a new empty scene.
_scene = new Scene();
// Add the camera node to the scene.
_scene.Children.Add(_cameraObject.CameraNode);
// Add a few models to the scene.
var ground = ContentManager.Load<ModelNode>("Ground/Ground").Clone();
_scene.Children.Add(ground);
var box = ContentManager.Load<ModelNode>("MetalGrateBox/MetalGrateBox").Clone();
box.PoseLocal = new Pose(new Vector3F(0.5f, 0.5f, 0.5f), Matrix33F.CreateRotationY(0.1f));
_scene.Children.Add(box);
// Add some lights to the scene which have the same properties as the lights
// of BasicEffect.EnableDefaultLighting().
SceneSample.InitializeDefaultXnaLights(_scene);
// Add a lens flare for the sun light.
var lensFlare = new LensFlare(true); // The sun is a directional light source.
lensFlare.Name = "Sun Flare";
// The Size determines the screen size of the lens flare elements. The value
// is relative to the viewport height.
lensFlare.Size = 0.28f; // 0.28 * viewport height
// The QuerySize of a directional light is the estimated size relative to the
// viewport. This value is used in the hardware occlusion query, which determines
// whether the lens flare is visible.
lensFlare.QuerySize = 0.18f; // 0.18 * viewport height
// All lens flare elements are packed into one texture ("texture atlas").
// The PackedTexture identifies an element within the texture atlas.
// See file Media/LensFlare/LensFlares.png.
// (Credits: The sun lens flare was copied from the XNA racing game - http://exdream.com/XnaRacingGame/.)
var lensFlareTexture = ContentManager.Load<Texture2D>("LensFlare/LensFlares");
var circleTexture = new PackedTexture("Circle", lensFlareTexture, new Vector2F(0, 0), new Vector2F(0.25f, 0.5f));
var glowTexture = new PackedTexture("Glow", lensFlareTexture, new Vector2F(0.25f, 0), new Vector2F(0.25f, 0.5f));
var ringTexture = new PackedTexture("Ring", lensFlareTexture, new Vector2F(0.5f, 0), new Vector2F(0.25f, 0.5f));
var haloTexture = new PackedTexture("Halo", lensFlareTexture, new Vector2F(0.75f, 0), new Vector2F(0.25f, 0.5f));
var sunTexture = new PackedTexture("Sun", lensFlareTexture, new Vector2F(0, 0.5f), new Vector2F(0.25f, 0.5f));
var streaksTexture = new PackedTexture("Streaks", lensFlareTexture, new Vector2F(0.25f, 0.5f), new Vector2F(0.25f, 0.5f));
var flareTexture = new PackedTexture("Flare", lensFlareTexture, new Vector2F(0.5f, 0.5f), new Vector2F(0.25f, 0.5f));
// Add a few elements (circles, glow, rings, halos, streaks, ...) to the lens flare.
lensFlare.Elements.Add(new LensFlareElement(-0.2f, 0.55f, 0.0f, new Color(175, 175, 255, 20), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 0.9f, 0.0f, new Color(255, 255, 255, 255), new Vector2F(0.5f, 0.5f), sunTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 1.8f, 0.0f, new Color(255, 255, 255, 128), new Vector2F(0.5f, 0.5f), streaksTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 2.6f, 0.0f, new Color(255, 255, 200, 64), new Vector2F(0.5f, 0.5f), glowTexture));
lensFlare.Elements.Add(new LensFlareElement(0.5f, 0.12f, 0.0f, new Color(60, 60, 180, 35), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.55f, 0.46f, 0.0f, new Color(100, 100, 200, 60), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.6f, 0.17f, 0.0f, new Color(120, 120, 220, 40), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.85f, 0.2f, 0.0f, new Color(60, 60, 255, 100), new Vector2F(0.5f, 0.5f), ringTexture));
lensFlare.Elements.Add(new LensFlareElement(1.5f, 0.2f, 0.0f, new Color(255, 60, 60, 130), new Vector2F(0.5f, 0.5f), flareTexture));
lensFlare.Elements.Add(new LensFlareElement(0.15f, 0.15f, 0.0f, new Color(255, 60, 60, 90), new Vector2F(0.5f, 0.5f), flareTexture));
lensFlare.Elements.Add(new LensFlareElement(1.3f, 0.6f, 0.0f, new Color(60, 60, 255, 180), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.4f, 0.2f, 0.0f, new Color(220, 80, 80, 98), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.5f, 0.1f, 0.0f, new Color(220, 80, 80, 85), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(1.6f, 0.5f, 0.0f, new Color(60, 60, 255, 80), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.8f, 0.3f, 0.0f, new Color(90, 60, 255, 110), new Vector2F(0.5f, 0.5f), ringTexture));
lensFlare.Elements.Add(new LensFlareElement(1.95f, 0.5f, 0.0f, new Color(60, 60, 255, 120), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(2.0f, 0.15f, 0.0f, new Color(60, 60, 255, 85), new Vector2F(0.5f, 0.5f), circleTexture));
// The scene node "KeyLight" (defined in SceneSample.InitializeDefaultXnaLights())
// is the main directional light source.
var keyLightNode = _scene.GetDescendants().First(n => n.Name == "KeyLight");
// Let's attach the lens flare to the "KeyLight" node.
// (Note: It is not necessary to attach a lens flare to a light node. Lens flares
// can be added anywhere within the scene. But attaching the lens flare to the
// light node ensures that the lens flare always has the same position and direction
// as the light source.)
var lensFlareNode = new LensFlareNode(lensFlare);
keyLightNode.Children = new SceneNodeCollection();
keyLightNode.Children.Add(lensFlareNode);
// Add a second lens flare.
// The previous lens flare was a caused by a directional light source (distance = infinite).
// This time we add a local lens flare.
lensFlare = new LensFlare(false);
lensFlare.Name = "Anamorphic Flare";
lensFlare.Size = 0.3f; // 0.3 * viewport height
// The QuerySize of a local lens flare is estimated size of the light source
// in world space.
lensFlare.QuerySize = 0.2f; // 0.2 meters
// Add some elements (glow, horizontal streaks, ...) to the lens flare effect.
var anamorphicFlareTexture = ContentManager.Load<Texture2D>("LensFlare/AnamorphicFlare");
flareTexture = new PackedTexture("AnamorphicFlare", anamorphicFlareTexture, new Vector2F(0, 0), new Vector2F(1.0f, 87f / 256f));
var flare1Texture = new PackedTexture("Flare0", anamorphicFlareTexture, new Vector2F(227f / 512f, 88f / 256f), new Vector2F(285f / 512f, 15f / 256f));
var flare2Texture = new PackedTexture("Flare1", anamorphicFlareTexture, new Vector2F(0, 87f / 256f), new Vector2F(226f / 512f, 168f / 256f));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 0.8f, 0.0f, new Color(255, 255, 255, 255), new Vector2F(0.5f, 0.5f), flareTexture));
lensFlare.Elements.Add(new LensFlareElement(1.0f, new Vector2F(0.6f, 0.5f), 0.0f, new Color(172, 172, 255, 32), new Vector2F(0.5f, 0.5f), flare1Texture));
lensFlare.Elements.Add(new LensFlareElement(1.5f, 1.2f, float.NaN, new Color(200, 200, 255, 24), new Vector2F(0.5f, 0.2f), flare2Texture));
lensFlare.Elements.Add(new LensFlareElement(2.0f, 2.0f, float.NaN, new Color(172, 172, 255, 48), new Vector2F(0.5f, 0.2f), flare2Texture));
// Position the lens flare near the origin.
lensFlareNode = new LensFlareNode(lensFlare);
lensFlareNode.PoseWorld = new Pose(new Vector3F(-0.5f, 1, 0));
_scene.Children.Add(lensFlareNode);
// In this example we need two renderers:
// The MeshRenderer handles MeshNodes.
_meshRenderer = new MeshRenderer();
// The LensFlareRenderer handles LensFlareNodes.
_lensFlareRenderer = new LensFlareRenderer(GraphicsService);
}
/// <inheritdoc/>
protected override void CloneCore(Billboard source)
{
// Clone Billboard properties.
base.CloneCore(source);
// Clone ImageBillboard properties.
var sourceTyped = (ImageBillboard)source;
Texture = sourceTyped.Texture;
Size = sourceTyped.Size;
_animationTime = sourceTyped.AnimationTime;
_alphaTest = sourceTyped._alphaTest;
_blendMode = sourceTyped._blendMode;
Softness = sourceTyped.Softness;
}
// OnLoad() is called when the GameObject is added to the IGameObjectService.
protected override void OnLoad()
{
var content = _services.GetInstance<ContentManager>();
_skyboxNode = new SkyboxNode(content.Load<TextureCube>("Sky2"))
{
Color = new Vector3F(SkyExposure),
};
// The ambient light.
var ambientLight = new AmbientLight
{
Color = new Vector3F(0.9f, 0.9f, 1f),
HdrScale = 0.1f,
Intensity = 0.5f,
HemisphericAttenuation = 0.8f,
};
_ambientLightNode = new LightNode(ambientLight)
{
Name = "Ambient",
};
// The main directional light.
var sunlight = new DirectionalLight
{
Color = new Vector3F(1, 0.9607844f, 0.9078432f),
HdrScale = 0.4f,
DiffuseIntensity = 1,
SpecularIntensity = 1,
};
_sunlightNode = new LightNode(sunlight)
{
Name = "Sunlight",
Priority = 10, // This is the most important light.
PoseWorld = new Pose(QuaternionF.CreateRotationY(-1.4f) * QuaternionF.CreateRotationX(-0.6f)),
// This light uses Cascaded Shadow Mapping.
Shadow = new CascadedShadow
{
#if XBOX
PreferredSize = 512,
#else
PreferredSize = 1024,
#endif
Prefer16Bit = true,
}
};
// Add a lens flare for the key light.
var lensFlare = new LensFlare(true) { QuerySize = 0.2f, Size = 0.2f, Name = "Sun Flare" };
var lensFlareTexture = content.Load<Texture2D>("LensFlare/LensFlares");
var circleTexture = new PackedTexture("Circle", lensFlareTexture, new Vector2F(0, 0), new Vector2F(0.25f, 0.5f));
var glowTexture = new PackedTexture("Glow", lensFlareTexture, new Vector2F(0.25f, 0), new Vector2F(0.25f, 0.5f));
var ringTexture = new PackedTexture("Ring", lensFlareTexture, new Vector2F(0.5f, 0), new Vector2F(0.25f, 0.5f));
var haloTexture = new PackedTexture("Halo", lensFlareTexture, new Vector2F(0.75f, 0), new Vector2F(0.25f, 0.5f));
var sunTexture = new PackedTexture("Sun", lensFlareTexture, new Vector2F(0, 0.5f), new Vector2F(0.25f, 0.5f));
var streaksTexture = new PackedTexture("Streaks", lensFlareTexture, new Vector2F(0.25f, 0.5f), new Vector2F(0.25f, 0.5f));
var flareTexture = new PackedTexture("Flare", lensFlareTexture, new Vector2F(0.5f, 0.5f), new Vector2F(0.25f, 0.5f));
lensFlare.Elements.Add(new LensFlareElement(-0.2f, 0.55f, 0.0f, new Color(175, 175, 255, 20), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 0.9f, 0.0f, new Color(255, 255, 255, 255), new Vector2F(0.5f, 0.5f), sunTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 1.8f, 0.0f, new Color(255, 255, 255, 128), new Vector2F(0.5f, 0.5f), streaksTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 2.6f, 0.0f, new Color(255, 255, 200, 64), new Vector2F(0.5f, 0.5f), glowTexture));
lensFlare.Elements.Add(new LensFlareElement(0.5f, 0.12f, 0.0f, new Color(60, 60, 180, 35), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.55f, 0.46f, 0.0f, new Color(100, 100, 200, 60), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.6f, 0.17f, 0.0f, new Color(120, 120, 220, 40), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.85f, 0.2f, 0.0f, new Color(60, 60, 255, 100), new Vector2F(0.5f, 0.5f), ringTexture));
lensFlare.Elements.Add(new LensFlareElement(1.5f, 0.2f, 0.0f, new Color(255, 60, 60, 130), new Vector2F(0.5f, 0.5f), flareTexture));
lensFlare.Elements.Add(new LensFlareElement(0.15f, 0.15f, 0.0f, new Color(255, 60, 60, 90), new Vector2F(0.5f, 0.5f), flareTexture));
lensFlare.Elements.Add(new LensFlareElement(1.3f, 0.6f, 0.0f, new Color(60, 60, 255, 180), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.4f, 0.2f, 0.0f, new Color(220, 80, 80, 98), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.5f, 0.1f, 0.0f, new Color(220, 80, 80, 85), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(1.6f, 0.5f, 0.0f, new Color(60, 60, 255, 80), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.8f, 0.3f, 0.0f, new Color(90, 60, 255, 110), new Vector2F(0.5f, 0.5f), ringTexture));
lensFlare.Elements.Add(new LensFlareElement(1.95f, 0.5f, 0.0f, new Color(60, 60, 255, 120), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(2.0f, 0.15f, 0.0f, new Color(60, 60, 255, 85), new Vector2F(0.5f, 0.5f), circleTexture));
// Add lens flare as a child of the sunlight.
var lensFlareNode = new LensFlareNode(lensFlare);
_sunlightNode.Children = new SceneNodeCollection();
_sunlightNode.Children.Add(lensFlareNode);
// Add scene nodes to scene graph.
var scene = _services.GetInstance<IScene>();
scene.Children.Add(_skyboxNode);
scene.Children.Add(_ambientLightNode);
scene.Children.Add(_sunlightNode);
}
/// <summary>
/// Initializes a new instance of the <see cref="LensFlareElement" /> class.
/// </summary>
/// <param name="distance">
/// The distance of the element: 0 = light source, 1 = center of screen.
/// Distance can be negative or greater than 1. The default value is 0.
/// </param>
/// <param name="scale">
/// The scale of the element relative to <see cref="LensFlare.Size"/>.
/// </param>
/// <param name="rotation">
/// The angle (in radians) to rotate the element around its center. <see cref="float.NaN"/>
/// can be set to automatically rotate the element depending on the position of the light
/// source.
/// </param>
/// <param name="color">The color of the element.</param>
/// <param name="origin">
/// The origin relative to the image, where (0, 0) is the upper-left corner of the image and
/// (1, 1) is the lower-right corner of the image.
/// </param>
/// <param name="texture">The texture containing the image.</param>
public LensFlareElement(float distance, float scale, float rotation, Color color, Vector2F origin, PackedTexture texture)
: this(distance, new Vector2F(scale), rotation, color, origin, texture)
{
}