Box2D changelog

Changelog History

• v2.4.1 Changes

  October 18, 2020

  🔄 Changes for version 2.4.1

  API Changes

  • Extended distance joint to have a minimum and maximum limit.
  • ✂ Removed rope joint. Use the distance joint instead.
  • 👉 B2_USER_SETTINGS and b2_user_settings.h can control user data, length units, and maximum polygon vertices.
  • Default user data is now uintptr_t instead of void*
  • b2FixtureDef::restitutionThreshold lets you set the restitution velocity threshold per fixture.

  💥 BREAKING Changes

  • 💥 BREAKING: distance joint 0 stiffness now means the spring is turned off rather than making the joint rigid.
  • 💥 BREAKING: distance joint minimum and maximum must be set correctly to get old behavior.

  Infrastructure

  • Library installation function available in CMake.
  • Shared library (DLL) option available.
  • 🐛 Bug fixes

• v2.4.0 Changes

  July 27, 2020

  🔄 Changes for version 2.4.0

  Infrastructure

  • 📚 Documentation in Doxygen format
  • 👷 CMake build system
  • ✅ Unit test support
  • ✅ Continuous integration testing using Travis CI
  • Limited use of C++11 (nullptr and override)
  • 👍 Restructured folders and renamed files to better match open-source standards
  • MIT License
  • ✂ Removed float32 and float64
  • 🔗 Linked the Box2D project to GitHub Sponsors

  Collision

  • Chain and edge shape must now be one-sided to eliminate ghost collisions
  • Broad-phase optimizations
  • ➕ Added b2ShapeCast for linear shape casting

  Dynamics

  • Joint limits are now predictive and not stateful
  • Experimental 2D cloth (rope)
  • b2Body::SetActive -> b2Body::SetEnabled
  • 👍 Better support for running multiple worlds
  • 🖐 Handle zero density better
    • The body behaves like a static body
    • The body is drawn with a red color
  • ➕ Added translation limit to wheel joint
  • World dump now writes to box2d_dump.inl
  • Static bodies are never awake
  • All joints with spring-dampers now use stiffness and damping
  • ➕ Added utility functions to convert frequency and damping ratio to stiffness and damping

  ✅ Testbed

  • ✅ Testbed uses dear imgui
  • glad OpenGL loader
  • OpenGL 3.3 required

• v2.3.1

  April 06, 2014

• v2.3.0 Changes

  November 03, 2013

  • Polygon creation now computes the convex hull. Vertices no longer need to be ordered.
  • 🔀 The convex hull code will merge vertices closer than dm_linearSlop. This may lead to failure on very small polygons.
  • ➕ Added b2MotorJoint.
  • 🐛 Bug fixes.