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Prevented avoidable matrix inversion or square root computation.
Enabled constant-time removal from the transformNodes array and materials array of the Scene. As a consequence, the order of the element within these arrays might change during a removal.
Enabled constant-time removal from the instances array of a Mesh. As a consequence, the order of the element within this array might change during a removal.
Stopped calling Array.splice on the scene.meshes array and on the engine._uniformBuffer when removing an element. As a consequence, the order of the element within these arrays might change during a removal.
Added an option useGeometryUniqueIdsMap in the Scene constructor options. When set to true, each Scene isntance will have and will keep up-to-date a map of geometry per uniqueId. This is to avoid browsing all the geometries of the scene when a new one is being pushed. It also enables a removal of geometry in constant time. Disabled by default.
Added an option useMaterialMeshMap in the Scene constructor options. When set to true, each Material isntance will have and will keep up-to-date a map of its bound meshes. This is to avoid browsing all the meshes of the scene to retrieve the ones bound to the current material when disposing the Material. Disabled by default.
Added an option useClonedMeshhMap in the Scene constructor options. When set to true, each Mesh will have and will keep up-to-date a map of cloned meshes. This is to avoid browsing all the meshes of the scene to retrieve the ones that have the current mesh as source mesh. Disabled by default.
Added blockfreeActiveMeshesAndRenderingGroups property in the Scene, following the same model as blockMaterialDirtyMechanism. This is to avoid calling Scene.freeActiveMeshes and Scene.freeRenderingGroups for each disposed mesh when we dispose several meshes in a row. Enable by setting blockfreeActiveMeshesAndRenderingGroups to true just before disposing the meshes, then set it back to false just after.
Prevented code from doing useless and possible time consuming computation when disposing the ShaderMaterial of a LinesMesh.
Make a better use of the isIdentity cached value within a Matrix.
Make sure we browse all the submeshes only once in Material.markAsDirty function.
Added an Vector3.UnprojectRayToRef static function to avoid computing and inverting the projection matrix twice when updating a Ray.
Added button.image and button.textBlock to simplify access to button internal parts (Deltakosh)
Added slider.displayThumb to show/hide slider's thumb (Deltakosh)
Added grid.rowCount, grid.columnCount and grid.getChildrenAt() (Deltakosh)
Added Control.AllowAlphaInheritance to let users control the way alpha is used (inherited or not) (Deltakosh)
Added support for performing operations like select all, text highlight, delete selected in inputText (Saket Saurabh)
Added inputText.onTextCopyObservable, inputText.onTextCutObservable and inputText.onTextPasteObservable to inputText (Saket Saurabh)
Added AdvancedDynamicTexture.onClipboardObservable to observe for clipboard events in AdvancedDynamicTexture(Saket Saurabh)
Added inputText.onFocusSelectAll to allow complete selection of text on focus event.(Saket Saurabh)
Added mouse drag to highlight text in inputText (Saket Saurabh)
Core Engine
Added reflectionMatrix support for more coordinatesMode's (Dennis Dervisis)
Added new WebRequest class to centralize all network requests. Can be used to configure headers of all network requests (Deltakosh)
Added WebRequest.CustomRequestHeaders, WebRequest.UseCustomRequestHeaders to send Custom Request Headers alongside XMLHttpRequest's i.e. when loading files (Tools.Loadfile) from resources requiring special headers like 'Authorization' (susares)
Added support for user clip planes to LineMeshes (Deltakosh)
Added new PassCubePostProcess to render cube map content (Deltakosh)
Added support for utility layer for SkeletonViewer (Deltakosh)
Added utility function Tools.BuildArray for array initialisation (barroij)
Introduced a new IOfflineSupport interface to hide IndexedDB (Deltakosh)
PBRMaterial and StandardMaterial now use hot swapping feature for shaders, allowing them to keep using a previous shader while a new one is being compiled (Deltakosh)
Aligned BoundingBox and BoundingSphere API and behavior for clarity and simplicity, removing BoundingBox's method setWorldMatrix and disallowing modification of the underlying world matrix except by calling reConstruct or update (barroij)
Make sure that Material.markAsDirty and all the markXXXDirty methods early out when scene.blockMaterialDirtyMechanism is true. (barroij)
Add updateUpVectorFromRotation to target camera to allow the up vector to be computed from rotation (TrevorDev)
Added wrap boolean parameter to CreateBox options to orientate images vertically on box sides (JohnK)
Added opacity texture support to GridMaterial (Deltakosh)
Added support for deserializing morph target animations in animation groups
Attaching a BoundingBoxGizmo on a child node shouldn't remove its parent, rotation gizmo should work on object with parent (TrevorDev)
ammo.js fix including issue caused after modules update and use world contact point to be consistent with Oimo and Cannon (TrevorDev)
Warn of motor with maxForce in Oimo plugin and set default force to be consistent with others, Cannon.js support no impostor, Cannon.js cylinder axis, ammo.js wake up impostor when apply force/impulse (TrevorDev)
Utility layer should render on last active camera (TrevorDev)
PointerDragBehavior should not let the drag plane get out of sync when rotating the object during dragging (TrevorDev)
Do not crash the application if WebVR submitFrame fails (TrevorDev)
Fix pinch action on FollowCameraPointersInput (mrdunk)
Tools.CreateScreenshot stopped working (TrevorDev)
Inspector showing duplicate nodes when attached to gizmo (TrevorDev)
Added missing dependencies for files to support including them from a direct path (eg. import "@babylonjs/core/Helpers/sceneHelpers";) (TrevorDev)
AssetContainer should not dispose objects it doesn't contain. Support for environmentTexture add/remove (TrevorDev)
Fixed mesh.visibility not working properly when certain material properties are set that changes the interpretation of alpha (e.g. refraction, specular over alpha, etc.) (bghgary)
Fixed material and texture leak when loading/removing GLTF/obj/babylon files with AssetContainer (TrevorDev)
Avoid exception when removing impostor during cannon world step (TrevorDev)
Fixed ArcRotateCamera divide by zero error (when looking along up axis) in rebuildAnglesAndRadius (sable)
Fixed ArcRotateCamerarebuildAnglesAndRadius when upVector modified (sable)
Fixed code branch, that does not try to (re)load an EquiRectangularCubeTexture/HDRCubeTexture when the caching returns an empty or corrupt InternalTexture (Dennis Dervisis)
Added error event listener (bubbling up the onError callback chain) in case an EquiRectangularCubeTexture cannot be loaded, because of a wrong path or IO problems (Dennis Dervisis)
3D GUI buttons no longer will scale up when pressing with a multitouch device (TrevorDev)
2D GUI elements will use the last clicked controller instead of only the right controller when dual VR controllers are interacting with an element (TrevorDev)
Virtual keyboard not showing up when made visible (TrevorDev)
Core Engine
Fixed a bug with mesh.alwaysSelectAsActiveMesh preventing layerMask to be taken in account (Deltakosh)
Fixed a bug with pointer up being fire twice (Deltakosh)
Fixed a bug with particle systems being update once per camera instead of once per frame (Deltakosh)
Properly handled the LinesMeshintersectionThreshold by using its value directly when the intersection against a Ray is checked instead of extending the BoundingInfo accordingly (barroij)
Added an InstancesLinesMesh class used to create instance of LinesMesh so that each instance can have its own intersectionThreshold value (barroij)
Fixed the LineEdgesRenderer used for edge rendering of LinesMesh to properly handle LinesMeshs made of disconnected lines and made it work for instance of LinesMesh (barroij)
Added missing effect layer to asset container (TrevorDev)
Fixed effect layer compatibility with multi materials (Sebavan)
Added a DeepImmutable<T> type to specifiy that a referenced object should be considered recursively immutable, meaning that all its properties are readonly and that if a property is a reference to an object, this object is also recursively immutable. (barroij)
Fixed VideoTexture poster property when autoplay is turned off.
Fixed position and rotation of plane mesh created by MeshBuilder.CreatePlane when specifying a source plane (sable, bghgary)
Fixed infiniteDistance not working anymore (Sebavan)
Fixed bug in SolidParticleBoundingSphere update within the SolidParticleSystem (barroij)
Updated picking so that when the picked Mesh is a LinesMesh, the index of the picked line is returned in the faceId property of the PickingInfo, as we do with face index the picked Mesh is made of triangle faces (barroij)
Fixed unintentional cloning of mesh observables (Sebavan)
Fixed Inspector resolution with AMD loader (Sebavan)
Fixed a bug when a call to updateIndices leads to changing the size of the index buffer by recreating the subMeshes in that case (barroij)
Added option to disable gazeTracker color changes in vrExperienceHelper (TrevorDev)
Added PointerDragBehaviorvalidateDrag predicate to stop dragging to specific points (TrevorDev)
Added hemispheric lighting to gizmos to avoid flat look (TrevorDev)
Fixed a bug causing WebRequest.open to crash if WebRequest.CustomRequestHeaders are set #6055(susares)
Fixed a bug causing Mesh.clone to crash if no physicsEngineComponent is used (barroij)
Fixed zoom inertia making it difficult to zoom out with ArcRotateCamera (TrevorDev)
Added option for isInFrustum to check rigCameras so that viewMatrix updates for rigCameras can notify their parent (TrevorDev)
Properly handled unindexed LinesMesh (rendering and picking) (barroij)
Loaders
Added missing loadedAnimationGroups to MeshAssetTask (bghgary)
Added missing linkTransformNode to BabylonFileLoader (MackeyK24)
Breaking changes
Replaced all references to XmlHttpRequest with WebRequest (which provides the same signatures) (Deltakosh)
Set Database.IDBStorageEnabled to false by default (Deltakosh)
Renamed Database.openAsync to Database.open (Deltakosh)
Renamed scene.database to scene.offlineProvider (Deltakosh)
Removed BoundingBox.setWorldMatrix and changed BoundingBox.getWorldMatrix to return a DeepImmutable<Matrix> (barroij)
Changed Matrix's accessor m and methods toArray and asArray to return a DeepImmutable<Float32Array> as the underlying array is not supposed to be modified manually from the outside of the class (barroij)
Removed some deprecated (flagged since 3.0) properties and functions, all of which are superceded by the SceneInstrumentation class unless otherwise specified (Deltakosh)
scene.getInterFramePerfCounter()
scene.interFramePerfCounter
scene.getLastFrameDuration()
scene.lastFramePerfCounter
scene.getEvaluateActiveMeshesDuration()
scene.evaluateActiveMeshesDurationPerfCounter
scene.getRenderTargetsDuration()
scene.getRenderDuration()
scene.renderDurationPerfCounter
scene.getParticlesDuration()
scene.particlesDurationPerfCounter
scene.getSpritesDuration()
scene.spriteDuractionPerfCounter
engine.drawCalls
engine.drawCallsPerfCounter
shadowGenerator.useVarianceShadowMap (superceded by useExponentialShadowMap)
shadowGenerator.useBlurVarianceShadowMap (superceded by useBlurExponentialShadowMap)
The glTF loader now creates InstancedMesh objects when two nodes point to the same mesh (bghgary)
The glTF loader now creates TransformNode objects instead of Mesh objects for glTF nodes without geometry (bghgary)
Note: The root node is still a Mesh object and is still the first in the returned list of meshes
TransformNode objects are excluded from the returned list of meshes when importing mesh
TransformNode objects do not raise onMeshLoaded events
Renamed xAxisMesh, yAxisMesh, and zAxisMesh of AxesViewer to xAxis, yAxis, and zAxis respectively and changed return to a TransformNode to represent the parent node of the cylinder and line of the arrow (bghgary)
Disallowed passing the engine into Viewport.toglobal to prevent circular dependency (Sebavan)
Moved Vector3.UnprojectRayToRef to Ray.unprojectRayToRef instance method to decrease class coupling (Sebavan)
Moved Material.ParseMultiMaterial to MultiMaterial.ParseMultiMaterial to decrease class coupling (Sebavan)
Removed babylon.no-module.max.js javascript version has the Webpack UMD bundle covers both ([Sebavan]
(https://github.com/Sebavan))
Removed es6.js javascript as it is now available as a true es6 NPM package (Sebavan)
Removed babylon.worker.js javascript following the lack of usage from the feature ([Sebavan]
(https://github.com/Sebavan))
Removed Primitive Geometries as they were not in use since 2.0 (Sebavan)
Changed shouldExportTransformNode callback in glTF serializer options to shouldExportNode (kcoley)
Changed PhysicsHelper method parameters for event calls (bobalazek)