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com.unity.physics 0.5.0-preview.1

com.unity.physics

Notes: processedReleased September 17, 2020

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Unity Compatibility

Minimum Unity: 2020.1 (0f1)

Package Dependencies

🔄 Changes

  • Dependencies
  • - Updated minimum Unity Editor version from `2019.4.0f1` to `2020.1.0f1`
  • - Updated Burst from `1.3.0` to `1.3.2`
  • - Updated Collections from `0.9.0-preview.6` to `0.11.0-preview.17`
  • - Updated Entities from `0.11.1-preview.4` to `0.13.0-preview.24`
  • - Updated Jobs from `0.2.10-preview.12` to `0.4.0-preview.18`
  • - Updated Performance Testing API from `2.0.8-preview` to `2.2.0-preview`
  • Run-Time API
  • - Added the following new types:
  • - `PhysicsGraphicsIntegration` namespace
  • - `PhysicsGraphicalSmoothing` and `PhysicsGraphicalInterpolationBuffer` components, which can be used to smooth a rigid body's graphical motion when rendering and physics are out of sync
  • - `RecordMostRecentFixedTime`, which stores time values from the most recent tick of `FixedStepSimulationSystemGroup`
  • - `BufferInterpolatedRigidBodiesMotion`, which stores dynamic rigid bodies' motion properties at the start of the frame when when smoothed bodies use interpolation
  • - `CopyPhysicsVelocityToSmoothing`, which stores dynamic rigid bodies' velocities after physics has finished in the current frame
  • - `SmoothRigidBodiesGraphicalMotion`, which writes dynamic rigid bodies' `LocalToWorld` when smoothing is enabled
  • - `GraphicalSmoothingUtility` class, which contains various methods for smoothing the motion of rigid bodies
  • - Renamed `ComponentExtensions` to `PhysicsComponentExtensions`
  • - Changed the following members/types:
  • - `PhysicsComponentExtensions.GetCenterOfMassWorldSpace()` now passes `PhysicsMass` as `in` rather than `ref`.
  • - `PhysicsComponentExtensions.GetLinearVelocity()` now passes `PhysicsVelocity` as `in`.
  • - `PhysicsWorldExtensions.CalculateVelocityToTarget()` is now implemented and passes a `RigidTransform` for the target rather than a separate `float3` and `quaternion`.
  • - Removed the following expired members/types:
  • - `BodyIndexPair.BodyAIndex`
  • - `BodyIndexPair.BodyBIndex`
  • - Body pair interfaces on events and modifiers (`CollisionEvent`, `TriggerEvent`, `ModifiableContactHeader`, `ModifiableBodyPair` and `ModifiableJacobianHeader`)
  • - `BodyCustomTags`
  • - `BodyIndices`
  • - `ColliderKeys`
  • - `Entities`
  • - `ComponentExtensions.GetCenterOfMass()`
  • - `ComponentExtensions.SetCenterOfMass()`
  • - `ComponentExtensions.GetAngularVelocity()`
  • - `ComponentExtensions.SetAngularVelocity()`
  • - `EndFramePhysicsSystem.HandlesToWaitFor`
  • - `FinalJobHandle` on all core physics systems (`BuildPhysicsWorld`, `StepPhysicsWorld`, `ExportPhysicsWorld` and `EndFramePhysicsSystem`)
  • - `Joint.JointData`
  • - `JointData`
  • - `JointFrame`
  • - `Material.IsTrigger`
  • - `Material.EnableCollisionEvents`
  • - `MotionData.GravityFactor`
  • - `PhysicsJoint.JointData`
  • - `PhysicsJoint.EntityA`
  • - `PhysicsJoint.EntityB`
  • - `PhysicsJoint.EnableCollision`
  • - `SimulationContext.Reset()` passing `PhysicsWorld`
  • - `Solver.ApplyGravityAndCopyInputVelocities()` passing `NativeArray`
  • - `Solver.SolveJacobians()` not passing explicit `StabilizationData`
  • - Added `JointType.LimitedDegreeOfFreedom` and associated creation and control functions
  • - Added `Aabb.Intersect()` function
  • - Added `PhysicsComponentExtensions.GetEffectiveMass()`
  • Authoring/Conversion API
  • - Removed the following expired members/types:
  • - `LegacyJointConversionSystem` (now internal)
  • - `PhysicsMaterialTemplate.IsTrigger`
  • - `PhysicsMaterialTemplate.RaisesCollisionEvents`
  • - `PhysicsShapeAuthoring.IsTrigger` and `OverrideIsTrigger`
  • - `PhysicsShapeAuthoring.RaisesCollisionEvents` and `OverrideRaisesCollisionEvents`
  • - Added the following new types:
  • - `BodySmoothing` enum
  • - Added the following new members:
  • - `PhysicsBodyAuthoring.Smoothing`, to enable motion smoothing
  • - `PhysicsBodyAuthoring.LinearDamping` and `AngularDamping` setters now clamp incoming values to be at least 0.
  • Run-Time Behavior
  • - Debug rendering is now significantly faster, in the case of 3D lines.
  • - Physics systems now update in the `FixedStepSimulationSystemGroup`.
  • Authoring/Conversion Behavior
  • - Classic `Rigidbody` interpolation mode is now supported during conversion.
  • - Inspector help button for built-in authoring components and assets now opens the corresponding page in the API reference.

🔧 Bug Fixes

  • Fixed issue where orientation in Physics Shape component would get dirtied when nothing changed
  • Fixed issue with `PhysicsJoint.CreateHinge()` only working on a single axes.
  • Fixed `Constraint.Dimension` not returning 0 when it should.
  • Reduced size of compound collider/mesh collider AABB in cases where their bodies are rotated by some angle.
  • Added optional integrity checks for physics ECS data consistency between BuildPhysicsWorld and ExportPhysicsWorld. Checks can be run in editor only.
  • Fixed regression that caused additional sub-meshes to be ignored when converting mesh colliders.

⚠️ Known Issues

  • Physics debug display may not work properly while stepping frame by frame in Editor.