release-log.md

release log for the KK Physics library

Version 0.3.0 released on 3 August 2024

Pre-release for limited testing.

• Deferred the creation of jolt-jni bodies until the PhysicsSystem is stepped.
• Added a cleaner thread for Jolt physics objects.
• Implemented kinematic bodies, CollisionShapeFactory, RigidBodyControl, collision margins, and custom debug materials.
• Added 3 collision shapes:
  • CompoundCollisionShape
  • HeightfieldCollisionShape
  • SimplexCollisionShape
• Implemented alternative orientations of capsule and cylinder shapes.
• Implemented debug visualization for bounding boxes.
• Replaced RigidBodySnapshot with BodyCreationSettings.
• Updated the jolt-jni library to v0.5.0, picking up support for Linux-on-ARM platforms.

Version 0.2.0 released on 5 July 2024

This was another proof-of-concept pre-release.

• Switched from the jolt-java JVM bindings to jolt-jni. This expanded support to include MacOS and Windows platforms and eliminated the dependencies on JDK 19 preview features.
• Added 2 collision shapes: HullCollisionShape and MeshCollisionShape.
• Added BulletAppState accessors to configure debug visualization.
• Increased the maximum number of bodies in a PhysicsSpace to 15,000.
• Added PhysicsSpace configuration for broadphase optimization frequency.
• Did some preliminary performance tuning.

Version 0.1.0 released on 23 June 2024

This was a proof-of-concept pre-release, dependent on v0.1.0 of the jolt-java library for its JVM bindings.

Features:

• static and dynamic rigid bodies with friction and restitution
• 4 collision shapes (box, Y-axis capsule, Y-axis cylinder, and sphere)
• BulletAppState and RigidBodyControl
• debug visualization
• PhysicsDumper and PhysicsDescriber
• mimics the APIs of Minie and jme3-jbullet

Known issues:

• required Java 19 preview features
• only worked on Linux
• getLinearVelocity() often returned a wrong value