1.2.0-pre.12

[1.2.0-pre.12] - 2024-02-13

Added

• ScheduleUpdateBroadphase and UpdateBroadphaseImmediate to update the Broadphase instead of doing a full rebuild.
• ScheduleUpdateMotionData and UpdateMotionDataImmediate to update the pre-existing MotionData without recreating them.
• BuildPhysicsWorldData.CompleteInputDependency method to complete the InputDependency if necessary.
• Simulaton.ResetSimulationContext to make it possible reset the current simulation context.

Changed

• Updated Burst dependency to version 1.8.12

Fixed

• Fixed errors caused by memory corruption when selecting mesh-based custom Physics Shape Authoring components in the editor.

Updated

• Upgraded Test Framework version to 1.4.3

1.2.0-pre.6

[1.2.0-pre.6] - 2023-12-13

Changed

• Promotion preparation

1.2.0-pre.4

[1.2.0-pre.4] - 2023-11-28

Changed

• Updated Burst dependency to 1.8.10

1.2.0-exp.3

[1.2.0-exp.3] - 2023-11-09

Added

• Added extension functions PhysicsCollider.ToMesh() and Collider.ToMesh() for the creation of UnityEngine.Mesh objects from colliders.
• use of PhysicsMaterial instead of PhysicMaterial and PhysicMaterialCombine to PhysicsMaterialCombine API when the editor is newer than 2023.3.
• The Layer Overrides properties specified in Collider and Rigidbody authoring components are now baked into the CollisionFilter of the resultant Unity Physics colliders. For each individual Collider authoring component, the layer overrides on its Rigidbody and the collider itself are combined and together form the CollidesWith mask in the CollisionFilter of the baked collider. The collider collides with layers which are included, and does not collide with layers which are excluded. Furthermore, exclusions have precedence over inclusions.
• MassProperties.Scale function allows uniformly scaling mass properties in a physically correct manner, assuming unit mass.

Changed

• Update package com.unity.mathematics from 1.2.6 to 1.3.1 version.
• Analytics API update to SceneSimulationAnalytics.cs file.
• collider files renamed to BoxCollider.cs, CapsuleCollider.cs, Collider.cs, MeshCollider.cs, SphereCollider.cs and TerrainCollider.cs.
• The EnsureUniqueColliderSystem now runs first in the BeforePhysicsSystemGroup instead of after the AfterPhysicsSystemGroup. A system that instantiates prefabs using unique colliders during runtime should run in the BeforePhysicsSystemGroup to avoid a bug where colliders would not be unique during prefab instantiation.
• The minimum supported editor version is now 2022.3.11f1

Removed

• RayCastNode and ColliderCastNode

Fixed

• Prevent crash in debug display when exiting editor application.

1.1.0-pre.3

[1.1.0-pre.3] - 2023-10-17

Added

• The Physics Debug Display component can now display colliders of type TerrainCollider.
• The Layer Overrides properties specified in Collider and Rigidbody authoring components are now baked into the CollisionFilter of the resultant Unity Physics colliders. For each individual Collider authoring component, the layer overrides on its Rigidbody and the collider itself are combined and together form the CollidesWith mask in the CollisionFilter of the baked collider. The collider collides with layers which are included, and does not collide with layers which are excluded. Furthermore, exclusions have precedence over inclusions.
• MassProperties.Scale function allows uniformly scaling mass properties in a physically correct manner, assuming unit mass.
• MassProperties.CreateSphere function for creation of the mass properties of a sphere with the provided radius, assuming unit mass.

Changed

• Significantly improved performance of Physics Debug Display through a reduced need for thread synchronization via batching of debug display data.
• The Physics Debug Display now automatically resizes its debug draw data buffers dynamically to ensure all entities are drawn.
• Game objects with built-in or custom collider authoring components that have a purely uniform scale at edit-time, will now have the scale carried over into their LocalTransform component's Scale property during entity baking. Thus far, any scale, including a purely uniform scale, was baked into the Unity Physics collider geometry instead and the corresponding entity's LocalTransform.Scale property was set to 1 rather than to the desired uniform scale value. This is no longer the case, and users can now expect to find the uniform edit-time scale they assign to their game objects also in the resultant, baked entities during run-time, making run-time modifications of already uniformly scaled objects much more intuitive and less cumbersome.
• Rigid bodies baked from game objects which have any world-space scale or shear at edit-time can now be scaled at runtime using their LocalTransform component's Scale property. Previously, this was not possible. Runtime scaling using the LocalTransform.Scale property was only possible when the edit-time scale of the baked game object was identity, and no shear was present.
• Entity references in CompoundCollider children are no longer automatically set during baking since these references are not guaranteed to be valid in the World after baking. Only those entity references that appear in components and buffers, such as the PhysicsColliderKeyEntityPair buffer, are always guaranteed to be valid. Note that the PhysicsColliderKeyEntityPair buffer is still present on entities which contain a baked compound collider. Via collider keys, this buffer provides a mapping between the child colliders and the original entities that they were in at bake time.

Fixed

• Prevent race condition between the systems that produce the debug draw data and the display system that renders the data. This allows the debug data to be fully produced before the display system attempts to render it.
• Fix draw of collider entities without LocalToWorld component when selecting PostIntegration in the Physics Debug Display.
• Avoid leftover debug draw when switching scenes and new scene has no Physics Debug Display.
• Mass properties debug display now correctly considers the rigid body scale, and correctly handles cases with unphysical inertia tensors.
• Custom mass properties specified using the Override Default Mass Distribution option in the custom Physics Body Authoring component now work correctly even if no collider is present.
• A rigid body's uniform scale value (LocalTransform.Scale) is now always considered correctly in the simulation. Previously, when the rigid body entity also contained a PostTransformMatrix component, its uniform scale was not applied to its collider and mass properties, leading to erroneous mass properties and missed collisions (if uniform scale > 1) or ghost collisions (if uniform scale < 1).
• Collider debug display now correctly displays colliders with uniform scale other than 1 in accordance with their LocalTransform component's Scale value.
• Collider debug display now correctly displays rigid body entities with Parent component.

1.1.0-exp.1

[1.1.0-exp.1] - 2023-09-18

Added

• Tests for ensuring proper joint anchor and mass property baking
• new demo scene (5m. Collider Modifications) demonstrating how to create colliders during runtime
• Utility functions were added for the creation of MeshCollider blob assets from UnityEngine.Mesh, UnityEngine.MeshData and UnityEngine.MeshDataArray. These functions are located in the MeshCollider class as `MeshCollider.Create' variants with different function signatures.
• Users can now verify if a collider blob is unique, and make it unique easily if required. The newly introduced PhysicsCollider.IsUnique property lets users check if a PhysicsCollider is unique and turn it into a unique collider if desired via the function PhysicsCollider.MakeUnique(). Making a collider unique with this function also takes care of the collider blob lifetime management and will automatically dispose it if it is no longer needed.
• Added a custom entity inspector for the collider blob asset stored in the PhysicsCollider component. This inspector allows for two-way interaction with the collider. The displayed values update in accordance with the collider's latest runtime state, and the UI can be used in order to interact with the collider manually when it is unique (see PhysicsCollider.IsUnique). Among others, this lets users try out different material properties at runtime, such as friction and restitution, or modify the collider's size, local position or orientation.

Changed

• Changed the bool flags in the Physics Debug Display authoring component for drawing colliders, collider edges and axis-aligned bounding boxes of colliders to an enum called DisplayMode. With the display mode you can now choose whether to draw these elements at the beginning of the simulation step or at the end of the simulation step after the rigid bodies have been integrated, meaning, they have been moved forward in time.
• Convert SystemBase to ISystems.
• Joint baking for built-in 3D physics joints has been improved, leading to the expected simulation results. Now, when the Spring and Damping properties in Configurable and Character Joints are both set to 0 for limits, a hard limit is modeled. This is equivalent to the behavior in built-in 3D physics. Also, the Damping parameter is now correctly converted from damping coefficient to the Unity Physics damping ratio for joints, yielding the correct damping force. Furthermore, joint baking now considers the scale of game objects. Anchor points are now affected by the scale accordingly.
• The formula which converts the user-specified joint relaxation parameters (spring frequency and damping ratio) to the internal constraint regularization parameters (tau and damping) was rewritten as an optimized closed-form expression with constant time complexity. The regularization parameters can now be efficiently computed regardless of the chosen solver iteration count.
• PhysicsGraphicalSmoothing has been added to .WithAll<>() from .WithAllRW<>() in the SmoothedDynamicBodiesQuery variable within SmoothRigidBodiesGraphicalMotion.cs system file.
• Updating APIs to GetScriptingDefineSymbols() and SetScriptingDefineSymbols().
• Included ragdoll authoring in documentation
• Prefab instances will now contain unique colliders if the "force unique" collider authoring option is used. This allows collider runtime modifications without manual collider blob cloning now also on prefab instances. Note that prefab instances that contain "force unique" colliders will be made unique only after the next physics system group update following the prefab instantiation. Until then, the PhysicsCollider.IsUnique property will be false. If users require a unique collider immediately after prefab instantiation for runtime collider modifications, they can safely use the new PhysicsCollider.MakeUnique() function immediately after instantiation.
• Updated Burst dependency to version 1.8.8
• The internal component DrawComponent, required by the Physics Debug Display, is now hidden in the hierarchy.

Deprecated

• The Constraint.DefaultSpringDamping variable was deprecated. Use Constraint.DefaultDampingRatio instead. The same applies to the Constraint.SpringDamping property which was deprecated. Instead the new Constraint.DampingRatio property should be used.

Removed

• Remove unused internal debug draw functionalities which were causing slowdowns during world initialization

Fixed

• BuildCompoundCollidersBakingSystem no longer leaks memory when the world is disposed.
• Convert SystemBase to ISystems
• When using the built-in Rigidbody and Collider authoring components, the inertia tensor of the resultant rigid body in Unity Physics is now set correctly in all situations. Previously, in certain cases, the default inertia tensor was used.
• A problem which prevented the solver to respect the user-specified joint spring frequency and damping ratios in certain cases has been fixed, enabling physically-plausible modeling of joints under all operating conditions.
• Link to changelog in documentation now fixed
• Physics Shape components with type Mesh now correctly only use the Custom Mesh for MeshCollider creation if specified rather than also incorrectly including the game object's render mesh and any render mesh found in the game object's children. The previous erroneous behavior could lead to significant performance problems in the narrow phase (contact creation) of the physics simulation group for affected meshes.
• Updated documentation to reflect that the Built-In TerrainCollider is not yet supported by Unity Physics

1.0.16

[1.0.16] - 2023-09-11

Changed

• Updated Burst dependency to version 1.8.8

Fixed

• Bugfix: The AngularDamping component of RigidbodyAspect is now writing to the correct value instead of to LinearDamping

Security

1.0.14

[1.0.14] - 2023-07-27

Added

• Added support for overriding mass properties when baking Rigidbody authoring components. Now, when setting the RigidBody.automaticCenterOfMass or RigidBody.automaticInertiaTensor properties to false, the corresponding mass property data values are correctly baked into the Unity Physics rigid body entity and appear as expected in the entity's PhysicsMass component.

Changed

• Updated Burst dependency to version 1.8.7

1.0.11

[1.0.11] - 2023-06-19

Changed

• Prevent spawning ParallelSolverJobs unnecessarily ahead of time, which was leading to a potentially high overhead in time consumption. Instead, schedule the right number of jobs for the dispatch pair phases created by the scheduler to prevent scheduling and processing overheads. This leads to speed-ups in the time consumed by jobs in the SolveAndIntegrateSystem specifically in cases with low to medium joint and contact counts.
• The PhysicsColliderKeyEntityPair buffer is now added only when needed and its internal capacity of the buffer is set to zero, ensuring its content always lives outside of the chunk. This way, we don't unnecessarily increase the rigid body sizes in chunks, allowing for a larger number of rigid bodies in a single chunk, which improves performance.

Fixed

• Fixed regression in accessibility of PhysicsShapeAuthoring API. The functions GetCapsuleProperties() and SetCapsule() were made internal by accident during the move of the custom physics authoring components from the package API to a package sample and are now public again.

1.0.10

[1.0.10] - 2023-05-23

Added

• Added missing API documentation and tooltips.
• preprocessors against performance tests package

Changed

• Changed visibility of BaseJointBaker class. It is now internal.
• Changed visibility of ColliderGeometry struct. It is now internal.
• Changed visibility of PrimitiveColliderGeometries struct. It is now internal.

Fixed

• The relative velocity in the angular velocity motor is now calculated correctly and the relative orientation between the two connected rigid bodies is correctly taken into account. This makes the motor work properly in all configurations.
• Prevent issues with update order for ModifyJointLimitsSystem in netcode multiplayer use case in which the system could not be placed after the PhysicsSystemGroup since both were no longer in the same group.