• NEW: Using MonoGame content pipeline instead of XNA content pipeline for all MonoGame projects.

• NEW: Added method LinqHelperEmptyT.
• FIX: Improved handling of ZIP storages in a TitleStorage on Android.
• Internal improvements.

• NEW: Added new overload for method ContactSetRecycle.
• Internal improvements.

• FIX: Silhouette outlines created by EdgeFilter have only half thickness when object is rendered in front of empty background.
• FIX: Workaround for unexpected WPF behavior. WPF may raise events, such as drag-and-drop events, on the UI thread while D3DImage.Lock is running on the same UI thread.
• FIX: Shadow value of CubeMapShadow with NumberOfSamples = -1 was incorrect (but it looked plausible).
• FIX: Forward.fx directional shadow should only be applied to first (dominant) directional light.
• FIX: SsaoFilter with Quality = 1 did not sample mip-mapped G-Buffers correctly.
• Content pipeline improvements:
  • NEW: SkinnedEffect is now automatically assigned in the material (.drmat file) when processing models with skinned meshes.
  • FIX: Only transforms of skinned meshes are baked. The transforms of regular meshes are kept intact.
• Internal improvements.

• NEW: VolumetricCloudSample.
• NEW: Updated Kinect samples for Kinect for Windows v2.
• CHANGE: HeightFieldProcessor does not work in new MonoGame content pipeline because MeshBuilder is not implemented. Samples/Physics/32-ContentPipelineHeightFieldSample.cs is excluded in MonoGame.
• FBX models converted to FBX 2013 (required for MonoGame).
• Minor improvements.

• NEW: Builds and samples for Linux, Mac OS, X, Android and iOS. (Graphics profile Reach)
• NEW: Improved user documentation. Added several FAQs.

• CHANGE: Renamed PlatformID.MacOSX to PlatformIDMacOS.
• FIX: Global renamed to GlobalSettings. (Reason: The name Global may conflict with the global keyword in languages other than C#.)
• FIX: DequeTCopyTo should throw ArgumentException instead of ArgumentOutOfRangeException.
• FIX: ServiceContainer should only return shared service instances during enumeration.
• FIX: Internal first chance exception of type FileNotFoundException removed in VfsStorage.
• Internal improvements.

• CHANGE: Public method GetObjectData replaced by explicit interface implementation and protected virtual method. (Affected types: MatrixF, MatrixD, VectorF, VectorD)

• NEW: Improved TriangleMesh vs. TriangleMesh queries. Queries are faster. Contact queries return better contact info.
• NEW: New overload for GeometryHelperIsOver.
• NEW: Specialized TriangleTriangleAlgorithm added.
• CHANGE: More numerically robust handling of near-parallel line segments in several LineSegment operations.
• FIX: Methods overriding CollisionAlgorithmGetTimeOfImpact need to check arguments and throw ArgumentNullException.
• FIX: ToString methods need to use InvariantCulture.
• FIX: Bug in GeometryHelperGetBarycentricFromPoint and GeometryHelperIsOver.
• Internal improvements.

• CHANGE: MaterialProperties implements IEquatableT.
• CHANGE: Properties RagdollMotorParentIndex and BoneIndex are now read/write. Previously the properties were read-only.
• FIX: Virtual method ForceEffectOnEnabled is no longer called in constructor. Potential access of uninitialized code.

• CHANGE: Class ParticleParameterAttribute sealed.

• NEW: Property IsClipReversed added to AnimationClipT and TimelineClip.
• NEW: Improved key-frame compression (see Compress). The new compression is still lossy, but more accurate with regards to the specified error thresholds.
• NEW: Method SkeletonHelperCopy added, which copies the bone transform from one SkeletonPose to another. Calling this method is faster than copying all bone transforms manually.
• NEW: Method Clone added.
• NEW: Editing SkeletonKeyFrameAnimation after calling Freeze resets the animation into an editable state ("unfreeze"). It is possible to call Compress, Freeze, test the animation, then repeat.
• CHANGE: SkeletonKeyFrameAnimation optimized.
• CHANGE: Class SkeletonPose sealed.
• REMOVE: Method SkeletonPose.Invalidate() removed. It is no longer necessary to call this method explicitly.
• REMOVE: Method SkeletonPose.OnUpdate() removed.
• FIX: Wrong parameter used in AnimationClipT. Problem occurs only if animation loops with cycle-offset and does not have a source value.
• FIX: SkeletonKeyFrameAnimationGetWeight returned 0 if weights are partially set. Default value should be 1.
• Internal improvements and optimizations.

• BREAKING CHANGE: Improved shadow mapping.
  • New properties added to existing Shadow types. Several existing properties are no longer needed and have been marked as obsolete.
  • New shadow type CompositeShadow added.
  • Shadow cascade selection (see property CascadedShadowCascadeSelection)
  • Shadow map caching (see property CascadedShadowIsCascadeLocked)
  • ShadowMaskRenderer improved. New properties Filter, UseHalfResolution, UpsampleDepthSensitivity added.
  • Additional information stored in render context. See Shadow and ShadowTileIndex.
  • Flag SceneNodeIsShadowCasterCulled added.
  • Interface IShadowMapRenderer added.
  • ShadowPrefer16Bit is now true by default.
• NEW: Morph target animation (blend shape interpolation) added.
• NEW: UpsampleFilter added.
• NEW: New features added to Blur.
  • Anisotropic filtering
  • Bilateral filtering
  • Joint (cross) bilateral filtering (= edge-aware filtering)
  • Scaling the filter kernel by depth
  • Automatically using half-resolution depth buffer if image is smaller
• NEW: SaoFilter improved.
  • EdgeSharpness replaced by EdgeSoftness which offers better control.
  • Property MinBias added. Default value of Bias was changed to 0.0004. MinBias removes artifacts near the camera. Bias is scaled with depth and removes artifacts in the distance.
• NEW: Property RenderContextReferenceNode added.
• NEW: Property RenderContextSceneTexture added.
• NEW: Method OrthographicProjectionFromMatrix added as alternative to explicit cast operator.
• NEW: Method PerspectiveProjectionFromMatrix added as alternative to explicit cast operator.
• NEW: New overload GraphicsManagerRender added.
• CHANGE: LodEntry implements IEquatableT.
• CHANGE: LodSelection implements IEquatableT.
• CHANGE: RenderTargetFormat implements IEquatableT.
• CHANGE: String constant Bones moved from to SceneEffectParameterSemantics to DefaultEffectParameterSemantics.
• CHANGE: GraphicsScreens are updated automatically during GraphicsManagerRender if they have not been updated in GraphicsManagerUpdate.
• CHANGE: GraphicsManagerRender raises InvalidOperationException when called on background thread. (Previously, the render method was automatically rescheduled to run on the dispatcher.)
• OPTIMIZE: Performance improvements for Blur shader.
• FIX: GraphicsHelperDrawFullScreenQuad changed to clockwise winding order.
• FIX: GraphicsHelperUnproject can now be invoked as extension method.
• FIX: FlowMap did not correctly scale when WaterNode was scaled.
• FIX: Fog in effect DigitalRune/Materials/Forward was computed from local space instead of world space.
• FIX: MeshHelperToTriangleMesh created wrong indices if more than one submesh without index buffer was added to a triangle mesh.
• REMOVE: Misc.fxh removed.

• NEW: Clipboard support added to Console. See Cut, Copy, and Paste.
• NEW: ScrollViewer can be scrolled with right gamepad stick.
• NEW: StackPanel now supports padding.
• FIX: IInputServiceEnableMouseCentering should have no effect on mobile.
• FIX: Game UI did not set default scissor rectangle. (Only relevant for MonoGame OpenGL platforms which do not correctly initialize the default scissor rectangle.)
• FIX: WindowClose should do nothing if already closed.
• FIX: ScrollViewer containing a TextBlock with word wrapping needs to re-measure the text block with the final size.
• FIX: Windows greater than the actual screen snap to the top of the screen. This layout restriction has been removed. Windows may be positioned freely, regardless of their size.
• REMOVE: Property setter for ConsoleHistory removed.

• NEW: Property GraphicsAdapter.UseDebugDevice added.
• CHANGE: Default position of game window.

• The following samples have been added:
  • FacialAnimationSample
  • IKPhysicsSample
  • ShadowSample
  • VarianceShadowSample
  • CompositeShadowSample
• NEW: Sample framework refactored and simplified.
• NEW: LightBufferRenderer supports different types of ambient occlusion.
• CHANGE: Improved use of Options window. Helper methods added to quickly insert controls (check boxes, sliders, etc.) into the Options window.
• CHANGE: Buffer sizes reduced for Xbox 360. Previously, Xbox 360 samples used the same resolution as the Windows desktop version. The memory usage would exceed the Xbox 360 eDRAM and slow down rendering ("predicated tiling").
• FIX: BasicEffectBinding "DiffuseColor" parameter must be set to Vector4 not Vector3.
• FIX: Font "Segoe WP" is not always included in the Windows Phone SDK. Font changed to "Segoe UI".
• FIX: Drawing characters not included in sprite font causes and exception. Default character added to sprite font.
• Minor other improvements.

• BREAKING CHANGE: To improve cross-platform development DigitalRune libraries are being converted to Portable Class Libraries (PCL). PCL only support subsets of the .NET API. The interface ICloneable is not supported on most platforms and has been removed from the API.
  Types that previously implemented ICloneable still have a Clone method, but they no longer implement the interface.
  User data stored in properties such as Tag or UserData is no longer duplicated: When an instance is cloned, user data is copied by reference (shallow copy). Previously, Clone was called when user data implemented ICloneable.
  The Mesh is no longer duplicated when the TriangleMeshShape is cloned. The mesh is copied by reference (shallow copy).
• NEW: Portable class libraries added. See Files, Folders and Dependencies.
• NEW: Tool Pack added.
• REMOVE: Code previously marked as obsolete removed.
• FIX: Licensing exception message in VS2013 XAML designer. No license key needed in designer.

• NEW: IStorage concept implemented. See Storage and Virtual File Systems.
• NEW: Parse can parse all types which have a static Parse(string) or Parse(string, IFormatProvider) method.
• NEW: Class Global added.
• NEW: Class PlatformHelper added. (For internal use by other DigitalRune assemblies.)
• REMOVE: Interface ICloneable removed.
• Minor improvements.

• NEW: Matrix, vector, and quaternion types now support data contract serialization.
• CHANGE: Quaternion-vector multiplication optimized.

• NEW: Optional input validation added which can be enabled using GlobalSettingsValidationLevel.
• NEW: Improved input validation for convex hull.
• NEW: Method PlaneTryNormalize added.
• NEW: Pose and PoseD now support data contract serialization.
• CHANGE: Method IGeometricObjectClone added. (IGeometricObject no longer implements ICloneable.)
• CHANGE: The constructors of EmptyShape and InfiniteShape have been marked as obsolete. It is recommended to use the predefined constants ShapeEmpty and ShapeInfinite instead.
• FIX: Changing the shape type of a collision object which is in a collision domain could lead to an exception.
• FIX: The Feature of ShapeChangedEventArgsEmpty was initialized with 0 but should be -1.
• FIX: Possible IndexOutOfRangeException when trying to build an AABB tree where some AABBs are NaN.
• FIX: Possible race condition when an explicit call of Update on DynamicAabbTreeT causes the tree to optimize itself while tree queries are executed in parallel.
• FIX: Improved error handling in DynamicAabbTreeT. Invalid input (NaN) causes a GeometryException. The new property GeometryExceptionContext references the item that caused the exception.
• FIX: Improved error handling in GeometryHelperExtractPlanes. Numerical problems are caught and an informative exception is thrown.
• FIX: ConvexDecompositionCompleted was raised at the end of synchronous Decompose calls. (Event should only be raised by DecomposeAsync.)
• Minor other improvements.

• Internal improvements.

• Internal improvements.

• Internal improvements.

• NEW: Optional input validation added which can be enabled using GlobalSettingsValidationLevel.
• NEW: Method GraphicsHelperGetSpriteBatch added, which returns a shared SpriteBatch instance.
• NEW: Properties DeltaTime and Time added to IGraphicsService.
• NEW: GraphicsManager and RenderTargetPool now implement IDisposable.
• NEW: Property RenderTargetPoolEnabled added.
• NEW: A GraphicsScreen may specify a SourceTextureFormat without explicitly defining texture width and height. (Previously, the width and height of the backbuffer were used as default values. But if there is no backbuffer, the results were undefined.)
• NEW: Support for alpha transparency added to D3DImagePresentationTarget. See property EnableAlpha.
• NEW: Constant RenderContextKeysRebuildZBufferRenderer added.
• NEW: Light clipping implemented. See property LightNodeClip.
• NEW: Property LightNodeInvertClip added.
• NEW: ColorCorrectionFilter can optionally interpolate between two lookup textures. Property LookupTexture is considered obsolete and has been replaced by LookupTextureA. and LookupTextureB.
• NEW: Scalable ambient obscurance implemented. See SaoFilter.
• NEW: Class StorageContentManager added.
• CHANGE: Quality of 1-pixel edges improved in EdgeFilter.
• CHANGE: GodRayFilter improved. Filter is now faster and easier to configure. Properties Decay and Weight have been marked as obsolete.
• CHANGE: SsaoFilter can now use a Strength > 1.
• CHANGE: NearBias and FarBias of BillboardRenderer are obsolete.
• CHANGE: Some constructor overloads of DebugRenderer, LensFlareRenderer and SpriteRenderer are obsolete.
• CHANGE: GameForm changed type from Form to Object. Property is now available on all platform. (Necessary to remove dependency on System.Windows.Forms from public API.)
• REMOVE: Method ResetTime removed from IGraphicsService.
• FIX: Possible NullReferenceException in VertexBuffer.
• FIX: Scene does not track scene node properly. (Only occurs if scene node is added to scene, removed from scene, Shape is changed from Empty/Infinite to other type (or vice versa), and scene node is added to scene again.)
• FIX: Order of SceneChanged fixed. When a SceneNode is added to a scene, the ShapeChanged event may be triggered before the corresponding NodeAdded event.
• Minor other improvements.

• Internal improvements.

• NEW: Internal property ConsoleHistory is now public.
• NEW: TextBox with IsMultiline = false ignores Enter, Up and Down.
• NEW: TextBox ignores Up/Down/Left/Right keys when the caret is at the border to allow control focus to move to different control.
• NEW: New methods added to LayoutSerializer for loading a layout from XmlReader (instead of XDocument).
• NEW: New methods added to KeyMap to load/save key map using XmlReader and XmlWriter.
• CHANGE: Internal order of constants in DigitalRune.Game.InputModifierKeys changed to match the order in ModifierKeys.
• CHANGE: Dependencies to System.Windows.Forms removed. All uses of Form and Cursor in the public API have been replaced by Object.
• REMOVE: Accelerometer functions removed from IInputService in MonoGame projects.
• FIX: <AltGr> should be handled as <Control>+<Alt>.
• FIX: Window did not correctly reset the mouse cursor when it was unloaded.
• FIX: ThemeProcessor can now build UI themes in subfolders. Previously the theme files (cursors, fonts, textures) were always copied to the content root directory.
• FIX (Windows Store): Missing scroll bars caused by differences in .NET runtime. (Static field initialization behaves differently in .NET for Windows Store.)
• Internal improvements.

• CHANGE: Touch events also set mouse events. (Behavior should be consistent with XNA for Windows Phone 7.)
• FIX: Wrong scaling of touch position.
• FIX (Windows Store): Wrong absolute mouse position.
• FIX (Windows Store): Wrong relative mouse position.

• CHANGE: Project "DigitalRune.Samples" renamed to "Samples". The .csproj files and the platform-specific files have been moved to a subfolder. Example: Samples/Platforms/MonoGame-WindowsPhone/
• CHANGE: UI theme assets moved into the main content project to reduce the total number projects in the solution.
• The following new samples have been added:
  • DumpContactSetSample
  • VignetteSample
  • InterlaceSample
  • LensDistortionSample
  • LightClipSample
  • DistortionSamples
  • VolumetricLightSample
• CHANGE: The samples now use GetSpriteBatch instead of creating a new SpriteBatch instance.
• CHANGE: The samples now use the RebuildZBufferRenderer instance stored in the render context instead of creating a new instance.
• CHANGE: The ContentBuilder project for MonoGame now calls Pack as a post-build step to package all assets (*.xnb files) in a ZIP archive. The Samples project for MonoGame only needs to include the ZIP archive as content.
• CHANGE: WpfEnvironment removed in Interop samples. WPF can now run on same thread as Windows Forms, which makes it easier to use.
• FIX: Sprite font is missing in InteropSample.
• Several other improvements.

• NEW: Methods NumericGetSignificantBitsSigned and NumericGetSignificantBitsUnsigned added.
• REMOVE: Finalizer of ServiceContainer removed.

• NEW: Fast Fourier transform (FFT). See FastFourierTransformF and FastFourierTransformD.
• NEW: Method MathHelperFrac added.
• NEW: Method MathHelperIsPowerOf2 added.
• NEW: Compute for 1D, 2D, 3D, 4D, and tileable noise added.

• NEW: Struct PoseD added.
• NEW: Method GeometryHelperHaveContact(Aabb, Plane) added.
• FIX: Ray query returns wrong contact when ray hit a CompositeShape which contains a concave TriangleMeshShape (and the TriangleMeshShape is hit twice).
• FIX: Improved Gjk collision algorithm. It computes better estimates for numerically degenerate cases. (Only relevant for closest point queries of convex objects.)
• Minor other changes.

• CHANGE: ListAreaOfEffect now supports lists with null entries.
• CHANGE: Minor optimization in GlobalAreaOfEffect.

• FIX: ChainBoneMapper did not properly handle SkeletonMapperRotationOffset when mapping in reverse direction (from B to A).

• NEW: Occlusion culling and shadow caster culling implemented. See class OcclusionBuffer.
• NEW: Render-to-texture. This new feature allows to create portals and real-time reflections. See SceneCaptureNode and PlanarReflectionNode.
• NEW: Water rendering.
• NEW: Method IGraphicsService.ResetTime added.
• NEW: Methods DebugRendererDrawMesh added.
• NEW: Oblique near-plane clipping implemented. See property PerspectiveProjectionNearClipPlane.
• NEW: It is now possible to override the Shape of FogNodes and SkyNodes.
• NEW: Effect parameter semantics added.
  • Time
  • LastTime
  • DefaultEffectParameterSemantics.Debug0
  • DefaultEffectParameterSemantics.Debug1
• NEW: Property GraphicsHelperProjectorBiasMatrix added.
• NEW: Method MeshHelperCreateSubmesh(GraphicsDevice, ITriangleMesh, Single) for ITriangleMesh added.
• NEW: Method RenderTargetFormatIsCompatibleWith(Texture) added.
• NEW: Different modes for upsampling particles (see property BillboardRendererUpsamplingFilter).
• CHANGE: Automatically adjust the BillboardRendererDepthThreshold for different view distances. (New depth threshold must be set in world space units.)
• CHANGE: LightQuery now supports LOD.
• RENAME: ColorEncoding.Default renamed to ColorEncodingRgb.
• RENAME: BasicCloudMap renamed to UserDefinedCloudMap.
• REMOVE: Finalizers in the following types removed: Mesh, Submesh, SceneNode, SceneNodeRenderer, DebugRenderer, PostProcessor.
• FIX: NullReferenceException in BillboardRenderer when running in Release configuration on Xbox 360 without debugger.
• FIX: NullReferenceException in MeshHelperToTriangleMesh(Submesh) when submesh does not have an index buffer.
• FIX: The default color encoding used in a SkyboxNode is now SRgb.
• FIX: EffectPostProcessor automatically switches from LINEAR to POINT sampling when source texture is a floating-point texture.
• FIX: Divide-by-zero in shader could make the screen black when using eye adaption in LuminanceFilter.
• FIX: Public setter for RenderContextFrame was missing.
• FIX: When searching for files the content pipeline should check local folder first.

• REMOVE: Finalizer in UIRenderer removed.

• NEW: Support for rendering point lists added (Direct3D only).

• The following new samples have been added to DigitalRune.Samples:
  • FurSample
  • TechniqueBindingSample
  • OcclusionCullingSample
  • SceneCapture2DSample
  • SceneCaptureCubeSample
  • PlanarReflectionSample
  • WaterSample
  • OceanSample
  • FogSphereSample
• NEW: The DynamicSkyObject can cache sky in cube map.
• CHANGE: The DeferredGraphicsScreen has been refactored. Other samples with their own screens (e.g. split-screen sample) can reuse/derive from the DeferredGraphicsScreen.
• FIX: Content fails to build when using the standalone version of XNA Game Studio. (When multiple XNA content projects write to the same folder, content in the folder gets deleted. This bug is fixed in the latest Windows Phone SDK.)
  As a workaround for older version of XNA Game Studio, the Reach and HiDef content projects have been combined into a single content project.
• FIX: Sample did not always reset the RenderContext.SourceTexture property.
• FIX: RefractionMeshRenderer caused exceptions when rendering refracted and non-refracted objects.
• Minor changes.

• NEW: DigitalRune.ServiceLocation.dll links against latest Microsoft.Practices.ServiceLocation.dll 1.1.0.0 (officially signed Portable Class Library).
• FIX: Windows App Certification Test failed with Windows Store builds.

• NEW: Support for infinite perspective projections added. The far clip plane of a projection can now be set to PositiveInfinity.
• NEW: Properties EpsilonX and EpsilonY added to RootFinderF. The property Epsilon is now obsolete. (Same for RootFinderD.)

• NEW: Multithreading for convex decomposition implemented (experimental). See property ConvexDecompositionEnableMultithreading.
• NEW: Copy constructor added to DcelMesh.
• NEW: Method DcelMeshModifyConvex added.
• NEW: Method overload CollisionDomainUpdate(Single, Boolean) added.
• FIX: Potential race condition when CollisionAlgorithmMatrix is used in multi-threaded CollisionDomain.
• FIX: Collision detection with rays may cause NullReferenceException when continuous collision detection is enabled.

• NEW: Method SimulationGetNextTimeStep added.

• NEW: Reading from SkeletonPose is now thread-safe.

• NEW: Render states of DebugRenderer can be overridden. See property AutoRenderStates.
• NEW: Methods DebugRendererDrawTriangle added.
• NEW: Property GraphicsHelperRasterizerStateWireFrame added.
• NEW: Effect parameter bindings added.
  • DitherMap ("DITHERMAP")
  • ShadowNear ("SHADOWNEAR")
  • ShadowFar ("SHADOWFAR")
  • UnscaledWorld ("UNSCALEDWORLD")
  • UnscaledWorldView ("UNSCALEDWORLDVIEW")
• NEW: Method NoiseHelperGetDitherTexture which creates a 16x16 dither map.
• CHANGE: Dither patterns in Noise.fxh and InstancedModel.fx improved.
• CHANGE: G-buffer stores normals in world space instead of view space.
• CHANGE: Effect parameter binding DecalOrientation ("DECALORIENTATION") is a vector in world space, not view space.
• CHANGE: Memory optimizations in DebugRenderer.
• CHANGE: CascadedShadow maps use faster cascade selection on Xbox.
• FIX: Increasing the MinLightDistance decreases the shadow quality. Property is set to 100 by default.
• FIX: DebugRenderer uses wrong normal vectors for rendering view volumes and does not premultiply colors with alpha.
• FIX: Atmospheric scattering did not work on Xbox because of HLSL compiler bug.
• FIX: LOD hysteresis needs to be scaled by LOD bias internally.
• FIX: Using RebuildZBufferRenderer while restoring floating point color textures could create exception because of wrong sampler state.

• NEW: UIRenderer implements IDisposable.
• CHANGE: Improved relative mouse input using raw device input in MonoGame Windows (desktop) builds.

• Merged changes of official MonoGame repository (branch develop).

• NEW: Samples have been rewritten. Existing examples have been combined in a single solution DigitalRune.Samples.
  The following new samples have been added to DigitalRune.Samples:
  • ProfilerSample
  • HierarchicalProfilerSample
  • InputSample
  • InputCommandSample
  • TriangulationSample
  • ConvexDecompositionSample
  • AutoRagdollShapesSample
  • SplitScreenSample
  • CloudQuadSample
  • EnvironmentLightSample
  • RefractionSample
  • ParallaxMappingSample
  • LodBlendingSample
• REMOVE: The previous example projects have been removed from the DigitalRune Engine package. They are still available as a separate download package. See Premium Downloads.
• FIX: DigitalRune content processors could not be used in projects that manually invoke MSBuild to build XNA content, like the AppHub WinFormsContentLoading sample.
• Internal improvements.

• NEW: Support for the Unity game engine added. See Unity.

• CHANGE: HierarchicalProfilerReset can now be called at any time. (Formerly it had to be called outside a Start/Stop pair.)
• FIX: Possible race condition and NullReferenceException in ResourcePoolT removed.

• NEW: DebuggerDisplayAttribute added to base class CurveKeyTParam, TPoint.

• NEW: Methods PoseAreNumericallyEqual added.
• FIX: HeightFieldCloneCore did not clone height field array.

• NEW: Property KinematicCharacterControllerVelocity added.

• BREAKING CHANGE: Signature of method ISceneQuerySet and QueryT has changed. Both methods have a new parameter for the RenderContext.
• NEW: Support for distance culling added. See SceneNodeMaxDistance and the usage in the DeferredLightingSample.
• NEW: Support for level of detail (LOD) added. See LodGroupNode. LOD settings added to RenderContext and property LodBias added to CameraNode.
• NEW: Method GraphicsHelperGetViewNormalizedDistance added.
• NEW: Property SceneNodeProxy added. (Required for LOD and future enhancements.)
• NEW: Methods SceneHelperSupportsInstanceAlpha and SceneHelperSetInstanceAlpha added.
• NEW: Methods SceneHelperGetSubtreeAabb added.
• NEW: Deferred light renderers now support Alpha8 textures.
• NEW: Property RenderContextFrame added.
• NEW: RenderContext now implements ICloneable.
• NEW: Method FigureRendererOnLoadEffect added.
• NEW: DebugRendererDrawContact also visualizes penetration depth.
• NEW: DebugRenderer supports TriangleMeshShapeIsTwoSided.
• NEW: Property SceneNodeUserFlags added.
• CHANGE: Improved handling of transparent objects in DebugRenderer. (Opaque and transparent objects are now rendered in separate batches.)
• CHANGE: Premultiplication with alpha is now applied before creating mipmaps in the content pipeline texture processor.
• CHANGE: ScaleAlphaToCoverage in content processors now correctly handles premultiplied alpha.
• CHANGE: Encoding of specular power in G-buffer improved.
• CHANGE: Materials with XNA stock effects now accept DiffuseColor as Vector3 (fallback) in addition to Vector4.
• FIX: Gamma correction needs to be applied before premultiplication with alpha in Forward.fx.
• FIX: DebugRenderer.DrawText("") did nothing but should create an empty line of text.
• FIX: Local lens flares did not work with orthographic projections.
• FIX: Wrong alpha was used when using alpha blending with BasicEffect and BasicEffect.LightingEnabled was false.
• FIX: ArgumentNullException in DigitalRune model processor when input content did not have valid names.
• FIX: Fixed confusing warning in model content processor when a merge animation replaced an existing animation.
• FIX: GraphicsHelperGetUniqueColor improved to return better (more random) colors on Xbox and Windows Phone.
• FIX: Cloud shadows did not work in MonoGame.

• CHANGE: Properties ConsoleCaretIndex, ConsoleText and TextBoxCaretIndex are now publicly accessible.
• CHANGE: Previously the InputManager simulated accelerometer input using the keyboard when run in the Windows Phone emulator. This feature was removed because new emulator versions can simulate accelerometer input.
• FIX: Class LayoutSerializer was missing in Windows Phone build.
• FIX: InputManager did not detect double-clicks of Back button on Windows Phone.

• NEW: Level of detail (LOD) example added to DeferredLightingSample.
• NEW: ShapeProcessor of DigitalRune Geometry Content Pipeline Samples can handle boxes which are not centered on the scene node.

• NEW: Class ArcSegment2F added to create curves with circle segments.
• NEW: Method overloads for Decompose and DecomposeFast added to Matrix44F and Matrix44D.
• CHANGE: Curve flattening improved.
• CHANGE: Tolerance in ICurveTParam, TPointFlatten(ICollectionTPoint, Int32, TParam) should be generic.
• CHANGE: Improvements in how RootFinderF and RootFinderD use epsilon tolerance.

• NEW: Method GeometryHelperTriangulate(IListVector3F, IListInt32) added.

• NEW (Breaking Change!): Figure rendering added. FigureNode and FigureRenderer replace LineNode and LineRenderer.
• NEW (Breaking Change!): DistanceFog and HeightFog combined into a single more powerful Fog class.
• NEW: FogRenderer automatically reduces fog scattering symmetry strength in the night when sun is below horizon.
• NEW: Property LensFlareNodeIntensity added. Can be used to override the intensity of a single lens flare instance.
• NEW: Cloud layers added (see CloudLayerNode).
• NEW: ScatteringSkyNode properties BaseHorizonColor, BaseZenithColor and BaseColorShift added. These properties define a color gradient that is added to the atmospheric scattering results. Can be used to give the night sky a blue touch.
• NEW: ColorEncoder post-processor and color encodings (ColorEncoding, RgbEncoding, SRgbEncoding, RgbeEncoding, RgbmEncoding, LogLuvEncoding) added.
• NEW: SkyboxNodeEncoding to support HDR cube maps.
• NEW: Methods GetCubeMapForwardDirection and GetCubeMapUpDirection added to GraphicsHelper to simplify cube map rendering.
• NEW: WpfInteropSample2 shows how to integrate graphics into a WPF application (without using the XNA Game class).
• NEW: Method D3DImagePresentationTargetToBitmap added.
• NEW: D3DImagePresentationTargetIsFrontBufferAvailable property and D3DImagePresentationTargetIsFrontBufferAvailableChanged event added.
• NEW: Model processor logs warning instead of throwing InvalidContentExceptions for minor problems in the model asset.
• NEW: New constructor added for DelegateGraphicsScreen.
• NEW: DebugRendererDrawSkeleton method added.
• CHANGE: Calling DebugRendererUpdate is now optional in typical games.
• CHANGE: DebugRendererDrawShape now explicitly handles capsules, cylinders, points and rays.
• FIX: DebugRenderer checks whether number of triangles in TriangleMeshShape has changed and updates the cached vertex and index buffers.
• CHANGE: RebuildZBufferRenderer now supports orthographic projections.
• CHANGE: Improved handling of floating point source textures in several post processors (EdgeFilter, SsaoFilter, BloomFilter).
• FIX: MonoGame Texture2D.GetData did not work for non-power-of-2 textures.
• FIX: Premultiplied textures may be too dark when DRTextureProcessorScaleAlphaToCoverage is enabled.
• CHANGE: Define GAMMA_CORRECTION added to Forward.fx.

• NEW: Class ReadOnlyWeakCollectionT added.

• NEW: GeometryHelperHaveContact(Triangle, Triangle) for fast triangle vs. triangle checks added.
• CHANGE: CollisionAlgorithmMatrix throws exception if the specified types are not derived from Shape.
• FIX: Triangle vs. triangle test could report false positives for triangles which are coplanar, long thin and in close proximity.
• Minor other improvements.

• NEW: Screen-door transparency for opaque objects.
• NEW: Decal rendering implemented. Classes DecalNode and DecalRenderer added.
• NEW: Sky rendering implemented including sky objects like sun/moon/starfields, user-defined gradient skys, physically-based atmospheric scattering. See class SkyNode and derived types and the new SkyRenderer.
• NEW: Class Ephemeris for computing physically accurate skies added.
• NEW: HdrFilter supports night vision blue-shift ("scotopic vision").
• NEW: Property CameraNodeViewDependentData added.
• NEW: Methods CameraNodeGetInstances and InvalidateViewDependentData added.
• NEW: Fog properties DistanceFog.HeightFalloff, DistanceFog.ScatteringSymmetry, and HeightFog.ScatteringSymmetry added.
• NEW: Property LineNode.DashInWorldSpace added.
• NEW: Geometry instancing now supports additional instance parameters InstanceColor and InstanceAlpha. Effects using instancing need to be updated - see "InstancingSample" in "GeneralSamples" project.
• NEW: SceneNodeRenderer now implements IDisposable.
• NEW: PostProcessors now implement IDisposable.
• NEW: Properties SceneNodeIsDisposed and SceneNodeIsStatic added.
• NEW: Property ShadowShadowMap added.
• NEW: Method overload RenderTargetPoolRecycle(Texture). added.
• NEW: GrainFilter improved for higher quality. Noise animation can be disabled with new property GrainFilterIsAnimated. Static noise can be used to remove banding.
• CHANGE: All renderer classes where moved to the new namespace DigitalRune.Graphics.Rendering. The namespace DigitalRune.Graphics.Deferred was removed.
• CHANGE: Scene node groups in Scene updated.
• CHANGE: AscendingNodeComparer and DescendingNodeComparer now only implement IComparer<SceneNode>. Specialized interfaces for specific scene node types removed.
• CHANGE: ProjectorLights now supports orthogonal projections.
• CHANGE: DefaultTargetFormat of the HdrFilter set to SurfaceFormat.Color.
• CHANGE: Lens-flares, HdrFilter, LuminanceFilter, and SimpleMotionBlur can now be applied to different camera nodes at the same time. Methods HdrFilter.Reset(), LuminanceFilter.Reset(), and SimpleMotionBlur.Reset() are obsolete and may be removed in a future release. Use InvalidateViewDependentData instead.
• CHANGE: RebuildZBufferRenderer now optionally copies color or texture to current render target.
• CHANGE: Deferred light renderers combined into a single, extensible class LightRenderer.
  Shadow map renderers combined into a single, extensible class ShadowMapRenderer.
  Shadow mask renderers combined into a single, extensible class ShadowMaskRenderer.
  The individual renderers for specific light/shadow map types are no longer public. This simplifies graphics screens and allows for internal optimizations.
• FIX: Method DebugRendererDrawViewVolume requires additional parameter to distinguish between orthographic and perspective projections.
• FIX: Possible NullReferenceException when IsEnabled of CameraNode is changed.
• FIX: Base class SceneNode called wrong overloaded Dispose method during finalization.
• FIX: Default parameters defined in effect file (.fx) were lost once an effect was used during rendering.
• FIX: DictionaryEffectBinder ignores effect parameters of type Boolean.
• FIX: The 'depth' parameter in function SetGBufferDepth() (file Deferred.fxh) had the wrong sign. The new function SetGBufferDepth() takes the linear depth in the range [0, 1] as parameter.
• FIX: Workaround for possible ObjectDisposedException caused by RenderTarget2D.
• REMOVE: Method Shadow.RecycleShadowMap removed. Shadow maps need to be recycled manually.
• Minor other changes and improvements.

• NEW: Method ObjectHelperConvertToT(Object) added.
• NEW: Method ObjectHelperIsConvertible(Type) added.
• NEW: Extension method ObjectHelperSafeDisposeT(T) added.

• NEW: Method ICurveTParam, TPointFlatten(ICollectionTPoint, Int32, TParam) added.

• CHANGE: Major convex hull improvements. Creating convex hulls is faster and more robust. (For 2d and 3d convex hulls.)
• FIX: DcelMeshIsTriangleMesh did not correctly handle some open meshes.
• Minor other improvements.

• NEW: Sprite rendering added. See ImageSprite, TextSprite, SpriteNode and SpriteRenderer.
• NEW: Improved billboard rendering. Support for text billboards added, class hierarchy refactored. See ImageBillboard and TextBillboard.
• NEW: Rendering of anti-aliased lines implemented. See LineNode and LineRenderer.
• NEW: "MatCap" shaders added.
• NEW: New post-processing filter for rendering outlines/edges added: See EdgeFilter.
• NEW: Support for different text alignments added to DebugRenderer.
• NEW: Method PackedTextureGetBounds(Single) added.
• CHANGE: The default normal direction of billboards and particles has been inverted.
• CHANGE: Property HeightFog/DistanceFog.Color (Vector4F) was separated into two properties Color (Vector3F) and Alpha (float).
• CHANGE: Namespace DigitalRune.Graphics.Shadows. Types were moved into namespace DigitalRune.Graphics.
• CHANGE: SceneNodeDispose(Boolean) method now has a parameter that determines whether data objects are disposed.
• CHANGE: Mesh and Submesh implement IDisposable.
• FIX: Draw order of particle systems was ignored.
• FIX: Setting SceneNodePoseWorld had no effect in a very specific case. (Bug appeared when SceneNodePoseLocal is changed and immediately after this SceneNodePoseWorld is reset to the previous value.)
• Minor other changes and improvements.

The changes in prior alpha versions are discussed on the DigitalRune Website (see News and Blog).

• FIX: Resizing did not work with right-aligned window. To fix this, properties UIControlX and UIControlY are now only used when controls are top-left aligned.

• CHANGE: Less strict argument checks for orthographic and perspective projections in matrix classes. For example, some projection properties are now allowed to be 0 or negative.

• FIX: Changing collision filter could cause MethodAccessException on Windows Phone 7.

• CHANGE: Parallel for-loops ("replicables") are scheduled FIFO to improve CPU utilization.
• CHANGE: New method overloads added in Profiler.

• FIX: TransformedShapeAlgorithm throws incorrect NotSupportedException when non-uniform scaling and rotations are combined.

• NEW: New constants added to ParticleParameterNames.
• FIX: ParticleBatch in example does not properly sort particle systems by depth.
• REMOVE: Property ParticleSystem.Scale removed.

• NEW: PrimeHelper added.
• NEW: PriorityQueueT added.
• FIX: Removed potential memory leaks in Parallel.

• CHANGE: Internal improvements.

• NEW: Property CollisionDomainNumberOfBroadPhaseOverlaps added.
• CHANGE: Memory and performance optimizations.
• CHANGE: Return value added to the methods ContactSetCollectionRemove(PairCollisionObject) and ContactSetCollectionRemove(CollisionObject, CollisionObject).
• FIX: AdaptiveAabbTreeT needs to implement ISupportClosestPointQueriesT.

• NEW: Property RagdollMotorMaxConstraintForce added.
• CHANGE: Minor other changes.

• NEW: Property InputSettingsDoubleClickSize. added.
• NEW: Removed dependency to System.Windows.Forms.dll.

• FIX: Parallel task does not catch exception of child tasks.
• FIX: ProfilerStop should do nothing if Start was not called.

• CHANGE: Internal class ContactHelper made public.
• FIX: Potential memory leak fixed in collision detection.

• CHANGE: Class Ragdoll moved from DigitalRune.Animation.Character to DigitalRune.Physics.Specialized.
• REMOVE: Obsolete class AvatarRagdollAnimation removed.

• FIX: Errors when rendering multiple ribbons using ParticleBatch.

• CHANGE: Class Ragdoll moved from DigitalRune.Animation.Character to DigitalRune.Physics.Specialized.
• CHANGE: Method CreateAvatarRagdoll moved from AnimationHelper to Ragdoll.

• FIX: GameObject throws NotSupportedException on Windows Phone 7.

• NEW: Property RectangleFSize added.
• NEW: Code samples added to API documentation of controls.
• CHANGE: Multi-line support for TextBox improved.
• CHANGE: Minor changes in UI themes.
• FIX: DropDown (popup) is not scaled when parent window is scaled.
• FIX: Window dragging distance is wrong when screen is scaled.

• NEW: Property ChildCollectionTParent, TChildParent with protected setter added.
• NEW: Method StringBuilderExtensionsAppend(StringBuilder, StringBuilder) added.
• FIX: DigitalRune.ThreadingParallel causes memory leak on Windows Phone 7.
• Windows Phone assemblies now target Windows Phone 7.1.

• NEW: PerlinNoise added.
• NEW: Methods MathHelperBinomialCoefficient and MathHelperNextPowerOf2 added.
• Windows Phone assemblies now target Windows Phone 7.1.

• NEW: Improved support for frustum culling: Interface ISupportFrustumCullingT. (FrustumCullingSample updated.)
• NEW: Method GeometryHelperCreateIcosphere added.
• NEW: Method GeometryHelperExtractPlanes added.
• NEW: Method PlaneNormalize added.
• ENHANCEMENT: Composite shape and triangle mesh collisions avoid memory allocations. ("Zero garbage")
• FIX: TransformedShapeAlgorithm does not reset ContactSetHaveContact property.
• Windows Phone assemblies now target Windows Phone 7.1.

• ENHANCEMENT: Avoiding memory allocations in vehicle physics. ("Zero garbage")
• FIX: KinematicCharacterController could tunnel through objects when trying to step on to obstacles.
• Windows Phone assemblies now target Windows Phone 7.1.

• FIX: Particle system should not advance time if system was removed by an effector.
• FIX: ParticleBatch (of example project) used wrong pose when drawing nested particle systems where the reference fame is Local.
• FIX: ParticleSystemRecycler (of example project) was not thread-safe.
• Windows Phone assemblies now target Windows Phone 7.1.

• NEW: Property BlendGroupSynchronizedDuration added.
• CHANGE: UpperBackBoneMapper now validates bone indices.
• FIX: ClosedFormIKSolver was missing in Xbox 360 and Windows Phone 7 build.
• Performance optimizations.
• Windows Phone assemblies now target Windows Phone 7.1.

• FIX: Default name of GameObjects and States are not unique on the Xbox 360.
• Windows Phone assemblies now target Windows Phone 7.1.

• CHANGE: Property UIControl.RendererInfo replaced with UIControlRenderData.
• CHANGE: Property UIControl.Tag replaced with UIControlUserData.
• FIX: Nested TabControl cause exception.
• FIX: Vertical scroll bar not positioned properly when TextBox was empty.
• Windows Phone assemblies now target Windows Phone 7.1.

• CHANGE: HierarchicalProfilerDump(HierarchicalProfilerNode, Int32) uses 'u' instead of 'µ' for microseconds. (Most SpriteFonts do not contain the character 'µ'.)
• FIX: Fixed possible DivideByZeroException when using HierarchicalProfiler.

• NEW: Several new distribution classes: Int32UniformDistribution, LineSegmentDistribution, BoxDistribution, CircleDistribution, SphereDistribution, DirectionDistribution
• NEW: Extension method RandomHelperNextT(Random, DistributionT) added.
• CHANGE: DistributionTRandom and DistributionTNextValue are now obsolete because the .NET class Random is not thread-safe. The method DistributionTNext(Random) has been added instead.
• NEW (XNA only): Content serializer attributes added to algebraic types (vectors and matrices) to support the XNA IntermediateSerializer.

• NEW: Shape InfiniteShape and constants for immutable shapes (ShapeEmpty and ShapeInfinite) added.
• NEW: Improved documentation regarding possible memory leaks with geometric objects (see Geometric Objects and Shapes).
• NEW (XNA only): Content serializer attributes added to selected shapes to support the XNA IntermediateSerializer.

• FIX: Caret index was not updated when character was added to empty TextBox.
• FIX: Exception when double-clicking beyond content in the TextBox.

• NEW: DigitalRune.ServiceLocation.dll which provides a new fast and light-weight inversion of control (IoC) container added. The old DigitalRune.ServiceProvider class is now considered obsolete and may be removed in a future release.
• NEW: Mono support (experimental).
• NEW: Class WeakEventHandler for listener-side weak events added.
• NEW: Method overload ObjectHelperGetPropertyNameT(ExpressionFuncT) added.
• NEW: Method LinqHelperDoT(IEnumerableT, ActionT) added.
• NEW: Method overload ObjectHelperCanParse(Type) added.
• CHANGE: Replaced WeakCollectionT with a simpler, more efficient implementation.
• CHANGE: LinqHelper.Sequence was renamed to LinqHelperReturnT(T).
• CHANGE: LinqHelperIndexOfT(IEnumerableT, FuncT, Boolean) uses FuncT, TResult instead of deprecated PredicateT.
• CHANGE: HierarchicalProfiler uses TimeSpan instead of Double for time values.
• CHANGE: HierarchicalProfiler.NumberOfFrames was renamed to FrameCount.
• FIX: WeakMulticastDelegateTRemove(T) did not remove delegate (on Windows Phone 7 only).
• FIX: In some cases ObjectHelperParseT(String) used the current culture instead of the invariant culture.
• Minor other changes and improvements.

• NEW: Mono support (experimental).
• Minor changes and improvements.

• NEW: Mono support (experimental).
• NEW: Interface for collision filters added: ICollisionFilter
• Minor other changes and improvements

• NEW: Mono support (experimental).
• NEW: Property SimulationTargetTime added.
• NEW: Sample in PhysicsSample added that demonstrates use of contact filters and how to create smooth movement of spheres over a triangle mesh.
• NEW: Simulation does not create contact constraints between non-dynamic bodies anymore.
• NEW: The default collision filter used by the simulation is now the standard DigitalRune.Geometry.CollisionsCollisionFilter. It can be replaced by any filter that implements DigitalRune.Geometry.CollisionsICollisionFilter.
• FIX: Jump height of kinematic character controller was dependent on frame rate.
• Minor other changes and improvements.

• NEW: Mono support (experimental).
• NEW: Major API change! Types use TimeSpan instead of Single for optimal precision.
• NEW: Class LogarithmicEase added.
• NEW: Completed event for animation controllers added.
• NEW: Constraint visualization added to passive ragdoll sample in the CharacterAnimationSample.
• CHANGE: AnimationSplitter (from the CharacterAnimationSample content pipeline) uses TimeSpan to define time values in the split XML file.
• FIX: AnimationSplitter (from the CharacterAnimationSample content pipeline) split animations with wrong duration.
• FIX: Orientations (quaternions) could flip when using a BlendGroup.
• Minor other changes and improvements.

• NEW: Mono support (experimental).
• NEW: Memory improvements: State machine allocates internal state collections only on demand.
• NEW: Indexers added to state machine collections to access states by names.
• NEW: State event handlers receive elapsed time as parameter.
• CHANGE: Major redesign of timing classes.
• CHANGE: Using TimeSpan for time values in properties and method parameters.
• Minor other changes and improvements.

• NEW: Support for font textures added.
• NEW: Support for multiple textures per UI theme added.
• NEW: UI theme supports image tiling for control images.
• NEW: Background and Opacity can now be set in UI theme in the state tag of UI control style.
• NEW: Support for selections and Cut/Copy/Paste in TextBox added.
• NEW: Data dictionary for custom data added to InputContext and UIRenderContext
• NEW: Method overload for UIRenderer constructor that does not require a Game object added.
• NEW: UI theme XML supports several new formats for vectors, rectangles and margins. Old format: "R;G;B;A", "R; G; B; A". Additional new formats: "R,G,B,A", "R, G, B, A", "R G B A".
• NEW: New samples added: CustomControlSample (including tree view control), GameStateSample, TilingSample
• CHANGE: Using TimeSpan for time values in properties and method parameters.
• CHANGE: A UIRenderContext object is passed to UI control render methods.
• CHANGE: Removed properties Screen, InputService and UIService from InputContext.
• CHANGE: Renamed UIControlCollection to VisualChildCollection.
• FIX: Wrong TabItemTextStyle in NeoForce UI theme.
• Minor other changes.

• NEW: Interfaces for animation library added. See Class Diagram of Namespace DigitalRune.Animation.
• NEW: Method TreeHelperGetSelfAndAncestorsT(T, FuncT, T) added.
• NEW: Method TreeHelperGetRootT(T, FuncT, T) added.
• NEW: Interface DigitalRuneIRecyclable added.
• CHANGE: First parameter of HierarchicalProfilerDump(HierarchicalProfilerNode, Int32) can be null to use the root profiler node.

• NEW: Methods Matrix44FDecomposeFast(Vector3F, QuaternionF, Vector3F) and Matrix44DDecomposeFast(Vector3D, QuaternionD, Vector3D) added.
• NEW: XNA ContentTypeWriters and ContentTypeReaders for DigitalRune.Mathematics.InterpolationPiecewiseCurveTParam, TPoint, TCurveKey added.
• CHANGE: Improved performance of DigitalRune.Mathematics.InterpolationPiecewiseCurveTParam, TPoint, TCurveKeys with many keys.
• CHANGE: Renamed InterpolationHelper.HermitSmoothStep() to InterpolationHelper.HermiteSmoothStep() (see DigitalRune.Mathematics.InterpolationInterpolationHelper).
• CHANGE: Removed allocation of heap memory (GC garbage!) and added support for resource pooling in curve classes (namespace DigitalRune.Mathematics.Interpolation).
• FIX: Matrix44FDecompose(Vector3F, QuaternionF, Vector3F) and Matrix44DDecompose(Vector3D, QuaternionD, Vector3D) did not support negative scalings or scalings were a single factor was 0.
• FIX: Wrong documentation: XNA quaternions are multiplied right-to-left.

• CHANGE: PoseInterpolate(Pose, Pose, Single) uses LERP (linear interpolation, faster!) instead of SLERP (Spherical linear interpolation).
• FIX: PoseIsValid(Matrix44F) did not check for mirror matrices.
• FIX: Method GetMesh did not work for non-square height fields.
• FIX: Closest point queries could fail on height fields.
• FIX: Removed possible race condition when a spatial partition (DigitalRune.Geometry.PartitioningISpatialPartitionT) was refitted/rebuilt in parallel on multiple threads.

• NEW: DigitalRune.Physics.SpecializedVehicle simulation uses hard constraints when wheel suspensions are fully compressed. This reduces problems where wheels sink into the ground.
• NEW: DigitalRune.Physics.Specialized.AvatarRagdollAnimation could cause an invalid cast exception when a custom collision filter was used in the collision detection.
• FIX: Exception in SimulationUpdate(Single) when a constraint was added to the simulation that referred to rigid bodies that were not added to the simulation.
• FIX: Sleeping kinematic rigid bodies did not wake up automatically when a very small velocity was set for the rigid bodies.

• NEW: Animation support implemented. Class DigitalRune.GameGameObject now implements DigitalRune.AnimationIAnimatableObject. New method GamePropertyTAsAnimatable added.

• NEW: Improved input commands. See DigitalRune.Game.InputIInputCommand.
• NEW: UI theme "BlendBlue" added. (Can be found in the samples folder.)
• NEW: Properties UIControlMaxWidth and UIControlMaxHeight added in DigitalRune.Game.UI.ControlsUIControl.
• NEW: "LINQ to Visual Tree" for UI controls added. See DigitalRune.Game.UIUIHelper.
• NEW: Support for horizontal scrolling with the DigitalRune.Game.UI.ControlsScrollViewer on Windows Phone 7.
• NEW: Add bounce effect in DigitalRune.Game.UI.ControlsScrollViewer on Windows Phone 7.
• NEW: Improved tool tips. UIControlToolTip can now be another control that is shown in the tool tip.
• CHANGE: UIControlToolTip stays open as long as mouse is on control. Previously the tool tip disappeared as soon as the mouse was moved.
• FIX: Content of DigitalRune.Game.UI.ControlsContentControl was rendered in front of other visual children (e.g. scroll viewer content was drawn in front of scroll bars).
• FIX: Range controls (e.g. DigitalRune.Game.UI.ControlsSlider) did not work with negative values.
• FIX: UI theme images which were centered could appear fuzzy - pixel-snapping implemented.
• FIX: Resizing mouse cursor of DigitalRune.Game.UI.ControlsWindow was not automatically removed in some situations.

• NEW: Method StringBuilderHelper.Clear() added. (Only in the Xbox 360 and Windows Phone 7 builds.)

• FIX: ConvexHullOfShapesChildren was changed from a NotifyingCollection<GeometricObject> to a NotifyingCollection<IGeometricObject>.
• FIX: CompositeShape tried to cast to GeometricObject internally instead of IGeometricObject. This could cause unnecessary rebuilds of spatial partitions.

• FIX: HierarchicalProfilerDump(HierarchicalProfilerNode, Int32) ignored first input parameter.

• NEW: Two-sided triangle meshes (TriangleMeshShapeIsTwoSided).
• NEW: Improved ray casting performance.
• NEW: Specialized ray collision algorithms: RayCompositeAlgorithm, RayHeightFieldAlgorithm and RayTriangleMeshAlgorithm.
• NEW: Better collision culling for rays in the CollisionDomain.
• ENHANCEMENT: Improved CCD for height fields.
• FIX: Possible NullReferenceException when CollisionObjectGeometricObject is set to null.
• FIX: Closest-point queries with height field could lead to ArgumentOutOfRangeException or IndexOutOfRangeException.
• FIX: Height field contact welding was applied to closest-point queries.
• FIX: BottomUpBuildThreshold was not serialized in XNA Content Pipeline.
• FIX: Height field collision algorithm did not set feature index of contact when UseFastCollisionApproximation was enabled.
• FIX: Improved convex hulls (see GeometryHelperCreateConvexHull(IEnumerableVector3F, Int32, Single)) when using negative skin widths.
• Minor other changes.

• NEW: Ragdolls for Xbox LIVE Avatars, including blending of ragdoll physics and keyframed animation.
• NEW: Improved character controllers.
  New features: dynamic jump height, configurable maneuverability during jump, climbing, crawling, support for moving platforms, holding on ledges, and a lot more.
  The old CharacterController class has been removed from DigitalRune.Physics.dll and the PhysicsSample. Two new classes have been added: DynamicCharacterController and KinematicCharacterController. A separate Character Controller Sample has been added.
• NEW: Vehicle physics.
• NEW: New DLL DigitalRune.Physics.Specialized.dll that contains avatar ragdolls, character controllers and vehicle physics.
• NEW: MotionSettingsCcdFilter allows to control when CCD should be used and for which body pairs CCD should be disabled.
• ENHANCEMENT: Removed tunneling of very fast body when body hit concave edge of a triangle mesh or a composite shape.
• FIX: Documentation corrected: For the TwistSwingLimit the Minimum/Maximum angles are in the range [-Pi, +Pi] and not [-Pi/2, +Pi/2].
• FIX: ContactSet and Contact could be recycled too early when CCD is used.
• Minor other improvements.

• NEW: Namespace DigitalRune.Diagnostics added. The namespace provides support for profiling (Profiler and HierarchicalProfiler).
• NEW: StringBuilder extension methods StringBuilderExtensions.
• NEW: Methods for object parsing and others, see ObjectHelper.
• NEW: Move method added for collections. For example, NotifyingCollectionTMove(Int32, Int32).
• ENHANCEMENT: CollectionChangedEventArgsT is resource pooled in collections that use this type.
• CHANGE: The Recycle methods of resource pooled objects are now instance methods instead of class/static methods.
• Minor other changes.

• FIX: License keys do not need to be entered in XNA content pipeline projects - this did not work with some Visual Studio Express editions.

• NEW: Additional examples from our website and blog added.
• NEW: XNA content pipeline samples added.
• NEW: CompressedAabbTree can now be serialized in the XNA Content Pipeline. At runtime the tree can be loaded and it is not necessary to rebuild the tree. See content pipeline samples.
• ENHANCEMENT: Improved serialization of ConvexPolyhedron in XNA Content Pipeline.
• ENHANCEMENT: Improved serialization of TriangleMeshShape in XNA Content Pipeline.
• NEW: TriangleMeshReverseWindingOrder.
• NEW: TriangleMeshComputeNormals(Boolean, Single).
• NEW: TriangleMeshWeldVertices(Single).
• CHANGE: TriangleMeshAdd(Triangle) and TriangleMeshAdd(ITriangleMesh) do no longer automatically perform vertex welding. Other Add method overloads can perform a brute-force vertex welding for small meshes. The new method TriangleMeshWeldVertices(Single) supports efficient vertex welding for large meshes. See class description of TriangleMesh.
• NEW: AABB trees have BottomUpBuildThreshold property, for example CompressedAabbTreeBottomUpBuildThreshold. Change this property to speed-up tree creation or create more balanced trees.
• ENHANCEMENT: Improved contact welding algorithm in the TriangleMeshShape. This increases the speed of the triangle mesh creation dramatically for large meshes.
• CHANGE: TriangleMeshShapeEnableContactWelding is now false per default and must be set explicitly.
• CHANGE: Changing the property ISpatialPartitionTGetAabbForItem does not automatically invalidate the spatial partition.
• CHANGE: Add methods of spatial partitions do not check for duplicates. (Performance improvement)
• CHANGE: The Recycle methods of resource pooled objects are now instance methods instead of class/static methods.
• FIX: License keys do not need to be entered in XNA content pipeline projects - this did not work with some Visual Studio Express editions.
• FIX: When a CompositeShape with AABB tree was tested against itself, some collisions were missed.
• FIX: Potential arithmetic overflow fixed in DynamicAabbTreeT.
• FIX: Tetrahedron sinks into plane.
• FIX: Removed wrong ArgumentException in CollisionDomainUpdate(CollisionObject). This also removes a bug in the CharacterControllerSample.
• FIX: IndexOutOfRangeException when using TriangleMeshShape with AABB tree.
• Minor other changes.

• NEW: New examples added:
  • Windows Phone 7 examples and all examples from our website and blog.
  • How to load an XNA Model and build convex hull in XNA content pipeline.
  • How to load an XNA Model and build pre-processed triangle mesh in XNA content pipeline.
  • How to generate a height field using the XNA content pipeline.
  • How to play realistic collision sounds.
  • Several improvements in the existing samples.
• FIX: License keys do not need to be entered in XNA content pipeline projects - this did not work with some Visual Studio Express editions.
• CHANGE: The automatically computed mass of a HeightField is now always 0 (which means they are static and do not have a valid mass). Previously, the library tried to compute a mass frame from the mesh of the height field.
• CHANGE: The Recycle methods of resource pooled objects are now instance methods instead of class/static methods.
• Minor other changes.

• NEW: Namespace DigitalRune.Threading added. The namespace provides support for concurrency (multithreading). See class Parallel to find out more.
• CHANGE: ResourcePoolT improved (thread-safe, lock-free implementation).

• CHANGE: DigitalRune.Mathematics.dll now supports .NET Framework 3.5 (Client Profile) and XNA Framework 4.0!
• NEW: Support for Windows Phone 7 added.
• NEW: Property Matrix44FIsNaN added to vector, matrix and quaternion types.

• CHANGE: DigitalRune.Geometry.dll now supports .NET Framework 3.5 (Client Profile) and XNA Framework 4.0!
• NEW: Support for Windows Phone 7 added.
• NEW: Continuous collision detection (CCD) integrated. See CollisionDetectionGetTimeOfImpact(CollisionObject, Pose, CollisionObject, Pose, Single).
• NEW: Convex hull simplification added.
• NEW: Convex decomposition (see ConvexDecomposition) added.
• NEW: ConvexPolyhedron added.
• NEW: Additional spatial partitions AdaptiveAabbTreeT, CompressedAabbTree, DynamicAabbTreeT and DualPartitionT added.
• NEW: ShapeChangedEventArgs added. ShapeChanged and IGeometricObjectShapeChanged changed from EventHandler<EventArgs> to EventHandler<ShapeChangedEventArgs>.
• NEW: Methods PoseInterpolate(Pose, Pose, Single), PoseFromMatrix(Matrix), PoseToXna, and Pose (Pose to Matrix) added.
• NEW: Methods DcelMeshFromTriangleMesh(ITriangleMesh) and DcelMeshFromTriangleMesh(TriangleMesh) added.
• NEW: Methods AabbContains(Aabb), AabbMerge(Aabb, Aabb) and AabbTranslate(Vector3F) added. GeometryHelperGetDistance(Aabb, Aabb) added.
• NEW: Method GeometryHelperComputeBoundingCapsule(IListVector3F, Single, Single, Pose) added.
• NEW: Overload GeometryHelperGetDistance(Aabb, Aabb) added.
• NEW: Method GeometryHelperGetContact(Ray, Triangle, Boolean, Single) added.
• NEW: Method ShapeGetVolume(Single, Int32) added.
• NEW: Overloads TriangleMeshShapeInvalidate(Boolean) and TriangleMeshShapeInvalidate(Int32, Boolean) added.
• NEW: Method ContactSetReset(CollisionObject, CollisionObject) added.
• CHANGE: The default value of shape features (see ContactFeatureA and ContactFeatureB) is now -1 instead of 0.
• ENHANCEMENT: The narrow phase algorithms are fully thread-safe and can be parallelized.
• ENHANCEMENT: Internally using resource pooling to minimize the number of allocations.
• ENHANCEMENT: Automatic computation of bounding volumes improved.
• ENHANCEMENT: ContactSet now implements IList<Contact> and ICollection<Contact> directly and is no longer derived from Collection<Contact>.
• ENHANCEMENT: Box vs. box and box vs. plane queries improved.
• ENHANCEMENT: GJK algorithm improved to support more degenerate cases.
• ENHANCEMENT: Contact welding implemented to improve height field and triangle mesh contacts.
• ENHANCEMENT: CollisionDomain checks whether collision objects are null or duplicates.
• FIX: Closest-point query between different composite shapes with spatial partitions could crash.
• FIX: Closest-point query between triangle meshes with spatial partitions crashed if the spatial partition did not implement ISupportClosestPointQueriesT.
• FIX: GeometryHelperHaveContact(Aabb, Aabb) and GeometryHelperHaveContact(Aabb, Vector3F) returned true if an AABB or a point contained NaN.

• NEW: Multithreading support added. Multithreading within a Simulation can be enabled by setting the property SimulationSettingsEnableMultithreading. The multithreading support is provided by the DigitalRune Helper Library. See namespace DigitalRune.Threading and class Parallel.
• NEW: New property ConstraintSettingsRandomizeConstraints.
• NEW: New property MotionSettingsRemoveBodiesOutsideWorld.
• NEW: The PhysicsSample example application contains a new sample "Sample 28 - Performance Test" that explains several performance relevant tricks and settings.
• ENHANCEMENT: Memory and performance optimizations.
• ENHANCEMENT: Improved resource pooling to minimize memory allocations at runtime.
• ENHANCEMENT: Damping is now by default using a faster, but less accurate damping model.
• FIX: Exception when rigid body left the simulation world.
• FIX: Mass computation of non-closed meshes could lead to exception.

• CHANGE: DigitalRune.dll now supports .NET Framework 3.5 (Client Profile) and XNA Framework 4.0!
• NEW: Support for Windows Phone 7 added.
• NEW: New methods for tree data structures added to TreeHelper.
• NEW: Methods NumericIsNaN(Single) and NumericIsNaN(Double) added.
• NEW: ResourcePoolT and ResourcePoolsT added.
• CHANGE: Methods for with tree data structures moved from LinqHelper to TreeHelper.

• ENHANCEMENT: MathHelperClampT(T, T, T) does not throw exception when min and max are swapped.
• NEW: New properties and methods for orthogonal matrices (Matrix33F and Matrix33D): IsOrthogonal, IsRotation, Orthogonalize, MultiplyTransposed.

• CHANGE: Property Licensing.SerialNumbers removed. Method LicensingAddSerialNumber(String) added instead.
• NEW: New structure DigitalRune.CollectionsPairT for unordered pairs.
• NEW: Class DigitalRune.Collections.HashSet<T> for .NET Compact Framework added.