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Changes:

• Some simplifications of RenderItem data
• Improved performance of Matrix4x4.compose and Matrix4x4.fromQuaternion
• Skinned animation optimisations:
  • Unify memory layout for skeleton bind matrices for uniforms and textures
  • Reduce copying of bind pose data when uploading to shaders
• Inlined and removed Matrix4x4.writeData and Matrix4x4.writeData4x3

Bugfixes:

• Fix invalidation of skeleton matrices
• Fix broken world matrix assignment for point light shadows

Changes:

• Components can list other component types it needs to be added to the entity first tthrough a static SomeComponent.dependencies array
• WebGL 2 tiled rendering: Optimize assignment of point/spot lights to tiles
• Removed EntityProxy
• Added MotionBlur and TAA post-process effects.
• InitOptions: allow rendering motion vector buffer through renderMotionVectors, accessible in shaders as hx_motionVectorBuffer.
• Effect:
  • Request motion vector buffer with needsMotionVectors if renderMotionVectors is true
  • Request sub-pixel camera jitter with needsCameraJitter
• Entity: Added static property to prevent writing previous transforms when not needed when rendering motion vectors
• Change hx_backbuffer and hx_frontbuffer to hx_backBuffer and hx_frontbuffer for consistency
• Blur: remove numSamples property and make radius changeable after construction
• Renderer.DebugMode: Rename .SSAO to AMBIENT_OCCLUSION
• SSAO Make numSamples changeable after construction.
• HBAO Make numRays and numSamplesPerRay changeable after construction.
• Created new ambient-occlusion example
• Created new motion-blur example.
• Created new taa example
• Don’t generate normal/depth buffer until required
• Pass on Renderer#skipEffects to RenderCollector and initialize normal/depth buffer lazily in order not to allocate unnecessary resources.
• Reintroduce InitOptions#ignoreExtensions for debugging
• Skybox: add intensity property (available in shaders by hx_intensity)

Bug fixes:

• Mesh.clone: clone morph targets as well
• Allow meshes without morph targets to be part of a morph setup
• SceneNode.attach: Fix assigning arrays
• Fix variance and exponential shadow mapping for platforms that don't support RGB32F render targets
• EntityEngine: Fix bug where removing entities from scene would remove other registered entities

• Changed the way components are defined and accessed (through Entity.components instead of Entity.getComponentsByType etc).
• Optimize entity/component traversal
• Add GL.setVertexLayout as the de facto way to assign vertex attributes
• Introduced VertexLayoutCache internally to share vertex layout objects between instances, possibly reducing amount of render state changes
• Added MeshBatch to allow rendering multiple instances with a single draw call
• GL: Do not require explicit enableVertexArray calls
• Create predefined hx_lodRange vec2 shader uniform, containing MeshInstance’s lodRangeStart and lodRangeEnd
• Terrain now extends Entity instead of Component
• Terrain: change constructor signature and the way the terrain LOD geometry is constructed
• Create predefined hx_heightMap, hx_heightMapSize, hx_worldSize passed to material in Terrain.
• Create abstract Texture base class for Texture2D and TextureCube
• Added QuadPartitioning
• BasicMaterial:
  • Added translucency and translucencyMap
  • Added billboardMode
• Added Impostor util to generate basic impostors from meshes
• Added LightingModel.Lambert for diffuse-only lighting.
• Updated terrain example with trees and grass
• Created ImpostorPrimitive
• Added META.TIME property and hx_time shader uniform
• TextureUtils.getData: Do not allow reading back from float textures except to encode greyscale data to rgba (due to Safari not supporting float readbacks)
• VarianceShadowFilter: Change default parameters to use full float and reduce bleeding
• Change sponza example model to gltf
• Renderer.DebugMode: Replace NORMALS_DEPTH debug mode with separate NORMALS and DEPTH

BugFixes:

• HCM: Fix progress notifications when loading mipchains
• Touch: Clear pinch value on touch up
• Raycaster: Prevent some false intersections.
• RenderCollector: Fix render order hint calculations to work as distance.
• Raycaster: Correctly test hierarchy visibility
• Prevent infinite bounds from affecting shadow bounds
• Shader: Do not insert derivatives extension in shaders when using WebGL 2 contexts
• DDS: Fix all half_float uploads if not supported (Safari)
• Fix ambient occlusion shaders when using WebGL 2 contexts

• Fix Mouse input for Safari
• Fix SH summation in shader due to iOS glsl bugs
• HDR/DDS: Provide fallback for broken half float texture uploads in Safari
• EquirectangularTexture: Provide fallback case when float FBOs aren’t supported

Additions and changes:

• Added SphericalHarmonicsRGB class to contain L2 spherical harmonic coefficients for spherical RGB functions
• LightProbe: Replace diffuseTexture with diffuseSH, accepting a SphericalHarmonicsRGB object.
• Support blending of multiple light probes.
• Added DDS file format support for compressed DXT1, DXT3, DXT5 (when supported by the system) and uncompressed (half) floating point R/RG/RGBA support for both Texture2D and TextureCube
• Added HDR file format support.
• Added ASH file format support for spherical harmonics coefficients generated by Knald’s Lys (https://www.knaldtech.com/lys/)
• Added CubeRenderer to render scenes to cube map
• Added CubeCamera for cube map rendering (also now used in OmniShadowMapRenderer)
• Added EquirectangularTexture.fromCube method
• Added TextureUtils.getData method for readback
• Added ASH exporter to helix-io
• Removed JPG_EQUIRECTANGULAR and JPG_HEIGHTMAP in favor of equiToCube and heightmap options for JPG
• AssetLoader: Do not immediately return empty unloaded asset placeholder in order to be able to change returned type on loading. Pass in a target object if a placeholder is required.
• MeshInstance: add lodRangeStart and lodRangeEnd to define a range in which the mesh instance is rendered or not.
• Texture2D:
  • Add mip level parameter to upload functions
  • Flip vertical orientation for uploaded images
• TextureCube: Add mip level parameter to upload functions, remove uploadImagesToMipLevel method
• SceneVisitor: tell acceptVisitor whether it’s the main RenderCollector visitor or not.
• Removed DynamicLightProbe
• CenteredGaussianCurve: renamed method at to evaluate
• Renamed all occurrences of “clustered” to “tiled” for the webgl2 rendering path
• Renamed ill-named capabilities.HDR_FORMAT to HDR_DATA_TYPE
• Moved blender exporter to helixjs-tools repository (https://github.com/DerSchmale/helixjs-tools)
• Moved helix-io importers to the import sub-folder

Bug fixes:

• StatsDisplay: only show triangle count for those on screen
• HMAT: Fix bug in light model parsing
• EquirectangularTexture: Fix equirectangular to cube projection in Firefox
• Material.fixedLights: Fix update of shaders when reassigning an array
• BasicMaterial: Fix assignment of textures when defining through constructor options object
• Importer and subclasses: Use onFail signal instead of throwing errors

Examples:

• Replaced all irradiance maps with SH representations.
• Added io-hdr showing how to parse HDR cube maps.
• Added multiple-sh-probes to illustrate multiple blended irradiance probes.

• HX 0.1.0 file format loader (See the wiki page for file format details)
• Added tools folder with blender exporter
• Added OrthographicCamera
• Added ShowSkeleton debug component
• Added EntityProxy that allows instancing entire SceneNode hierarchies
• Allow setting Skeleton/SkeletonPose and MorphPose to SceneNode and in order to easily share poses.
• Removed obsolete HMESH and HCLIP importers/exporters
• BasicMaterial: Added texture scale and offset properties
• Component: Changed _invalidateBounds to invalidateBounds
• Entity: Changed _invalidateBounds to invalidateBounds
• HMAT: Allow setting built-in lighting modes.
• LightProbe: added intensity property
• FixedLitPass: prevent invisible lights from being rendered
• Matrix4x4: fixed pitch and yaw orientations to be consistent with normal axis rotations
• NormalTangentGenerator:
  • Add hx_normal / hx_tangent vertex attributes if missing
  • Fixes for missing hx_texCoord attribute when only generating normals
• SceneNode: Fixed propagation of ancestor visibility
• SkeletonXFadeNode: fixed blending of one-shot animations
• Touch: Added TAP input button

Core:

• Cache shader programs for re-use
• Loaders now initialise materials to prevent massive material init cost on first render
• Move elementType property from Material to Mesh
• Created FixedLightsSystem that automatically updates materials to use all lights in the scene as fixed lights.
• Internal refactoring:
  • Trimming of boilerplate code (unnecessary getters/setters)
  • Removed function.call in favor of stored bound functions in performance-critical code
  • Simplify texture and uniform buffer assignments in MaterialPass
  • Shaders are now made active by calling GL.setShader()
  • EffectPass now uses .draw() method, can be used outside of Effect for simple 2D texture drawing

IO:

• Fix GLTF clamped animation keyframes

Core:

• Added HX.Input class to easily map multiple input types to the same actions.
• Added HX.Mouse, HX.MouseLock, HX.Keyboard, HX.Touch, and HX.Gamepad input types.
• Refactored HX.FloatController and HX.OrbitController, HX.FPSController to use new Input class, and moved them to the examples.
• Provided a HX.getGamepads, HX.onGamepadConnected, HX.onGamepadDisconnected methods to manage HX.Gamepad input types.
• Provided a HX.getVRDisplays wrapper for navigator.getVRDisplays for uniformity.
• Add signals to HX.VRDisplay to make handling associated handed VR controllers easier.
• Fix PCF shadow offsets.
• Fix partition unassignment when detaching objects.
• Assorted bugfixes

Physics:

• Added HX_PHYS.CylinderCollider, HX_PHYS.InvertedBoxCollider
• Handle non-root objects correctly in physics, optimize updates for objects that haven’t moved

Examples:

• Added TrackedController and TrackHMDController as illustrations of how to handle VR controller/headset tracking
• Added webvr-interaction, using room-scale and controller interaction to WebVR

Core:

• Added EntitySystem::scene property
• Added Entity::messenger and Component::broadcast for entity and inter-component communication
• Allow triggering AudioEmitter playback through messages

Physics:

• RigidComponent now broadcasts “collision” message with Collision info object

Examples:

• physics-basic example now adds audio to collisions

• Added WebVR support
• Converted LayeredAnimation to a cloneable Component
• Change copyTo to copyFrom: methods should only change their owner’s state
• Added Audio support through AudioListener and AudioEmitter