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release-log.md

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release log for the KK Physics library

Version 0.3.1 released on 20 January 2025

Pre-release for limited testing.

  • Updated the jolt-jni library to v0.9.5.
  • Added the PlaneCollisionShape class.
  • Made contact response optional for rigid bodies.
  • Added another MeshCollisionShape constructor.
  • Moved the PhysicsSystem from PhysicsSpace to CollisionSpace.
  • Added package javadoc.

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