jMonkeyEngine: jMonkeyEngine 3.9.0-alpha2

From jMonkeyEngine: link to the original post

What's Changed

• Undeprecate LoopMode by @capdevon in #2477
• MorphTarget: Add Missing License and Javadoc by @capdevon in #2464
• Return normal of sphere shaped emitter by @riccardobl in #2469
• Fix bbox validation check in particle emitter by @riccardobl in #2468
• Add Missing Joystick Button Definitions by @capdevon in #2474
• Enhance Material Javadoc by @capdevon in #2459
• Revert Static keyword in JoystickButton by @yaRnMcDonuts in #2484
• Reduce object allocations in MotionEvent's direction computation by @capdevon in #2447
• Improve LightControl Javadoc & Add Light Type Validation by @capdevon in #2451
• Add TextureMultisample cap to macos with gl > 3.2 by @riccardobl in #2475
• WireFrustum: javadoc + add makeGeometry(Camera) method by @capdevon in #2480
• Fix framebuffer initialization when cap TextureMultisample is missing by @riccardobl in #2476
• jme3-examples: TestLodGeneration - test code optimization by @capdevon in #2457
• SSAOFilter: javadoc + fix approximateNormals serialization by @capdevon in #2486
• Wayland fullscreen issue fixed by @JNightRider in #2492
• Materials: new material definitions for common shaders by @capdevon in #2485
• Add new screenshot tests for bill boarding, cartoons, fog and scattering by @richardTingle in #2518
• Refactor: optimize FlyByCamera and reduce object allocations + javadoc by @capdevon in #2498
• Feat: ConstantVerifierState - expand JME constant verification, fix logger name + javadoc by @capdevon in #2499
• Refactor: optimize ColorRGBA class + reduce code duplication by @capdevon in #2507
• Fix #2355 - VertexBuffer doesn't serialize the 'name' field by @capdevon in #2508
• AudioNode: add getAudioKey() method by @capdevon in #2512
• Consistent toString() for Lights by @capdevon in #2473
• ShaderNodeDefinitionLoader: Ensures clean instance state by @capdevon in #2510
• MatrixJointModelTransform: missing license + javadoc by @capdevon in #2511
• Refactor: LightsDebugState optimization, javadoc, performance by @capdevon in #2467
• Feat: WAVLoader: Ensures clean instance state, optimization + javadoc by @capdevon in #2496
• Refactor: SkinningControl optimization + javadoc by @capdevon in #2504
• feat: Improve ArmatureDebugAppState by @capdevon in #2491
• Feat: Improve ArmatureDebugger by @capdevon in #2493

Full Changelog: v3.9.0-alpha1...v3.9.0-alpha2