jMonkeyEngine: jMonkeyEngine 3.9.0-alpha1

From jMonkeyEngine: link to the original post

What's Changed

• Improved fix for IndexOutOfBoundsException by @tonihele in #2403
• Fix NPE on AbstractShadowFilter deserialization by @capdevon in #2405
• Update gradle.properties by @yaRnMcDonuts in #2415
• Create additional screenshot tests and add an auto message on screenshot test failure by @richardTingle in #2413
• #2416 pbr screenshot tests by @richardTingle in #2417
• Fix #2408 - com.jme3.audio.LowPassFilter not cloneable by @capdevon in #2410
• com.jme3.audio.Listener: format code + javadoc by @capdevon in #2414
• jme3-examples: TestPostWater code cleanup by @capdevon in #2418
• jme3-examples: TestReverb code cleanup by @capdevon in #2419
• Add InstanceNode test using PBRLighting by @yaRnMcDonuts in #2437
• jme3-examples: TestAmbient - test code optimization by @capdevon in #2429
• jme3-examples: TestOgg - added additional parameter tests by @capdevon in #2425
• jme3-examples: add TestDeviceDisconnect class by @capdevon in #2433
• com.jme3.audio.Environment: javadoc by @capdevon in #2428
• LwjglCanvas: typo in getPrintContextInitInfo() method by @capdevon in #2434
• Update DebugValuesMode documentation in PBRLighting.j3md by @yaRnMcDonuts in #2427
• jme3-examples: TestWav - test code optimization by @capdevon in #2430
• jme3-examples: TestDoppler - test code optimization by @capdevon in #2431
• jme3-examples: add TestAudioDirectional class by @capdevon in #2432
• DefaultParticleInfluencer: incorrect cloning of variables by @capdevon in #2407
• EmitterShape: javadoc improvements by @capdevon in #2420
• ALAudioRenderer: code improvements by @capdevon in #2423
• #2442 Automate test TestInstanceNodeWithPbr by @richardTingle in #2443
• com.jme3.audio.LowPassFilter lacks the required no-argument constructor for jME deserialization by @capdevon in #2441
• FastMath: new utility methods by @capdevon in #2450
• Add makeGeometry() method to WireSphere for consistency with WireBox by @capdevon in #2458
• CameraEvent: javadoc by @capdevon in #2448
• PBR Fixes: Apply band factor to spherical harmonic coefficients in accelerated baker light and prevent fireflies artifacts by @riccardobl in #2439
• Update PBR Screenshot Tests by @yaRnMcDonuts in #2462
• New audio filters: HighPassFilter and BandPassFilter by @capdevon in #2444

Full Changelog: v3.8.1-stable...v3.9.0-alpha1