SystemPhase

Remarks

Named stages rather than one flat graph, because some ordering is not derivable from what systems touch. Input must be read before anything reacts to it and the camera must be final before culling starts, whether or not those systems share a component — and a user who has to express that as an UpdateAfterAttribute chain across a hundred systems will get it wrong.

The hard sync between phases is what makes a phase boundary a place where structural change can safely happen: command buffers are played back there, and the world's change version moves on, so a system asking "what changed since I last ran" gets an answer whose granularity is the phase.

Fields and properties (9)

• EarlyUpdate

  Before anything else. Frame bookkeeping and time.

• Input

  Devices are polled and input state is published.

• FixedUpdate

  Simulation at a fixed timestep. Runs zero or more times per frame from an accumulator, so anything here must be a function of the fixed delta and never of the frame delta.

• Update

  Ordinary per-frame game logic.

• Animation

  Animation sampling and skinning, after logic has decided what is playing.

• LateUpdate

  After everything has moved. Cameras that follow, constraints that correct.

• PreRender

  Transforms are resolved, culling runs, draw lists are built.

• Render

  The render graph is recorded and submitted.

• PostRender

  After submission. Presentation bookkeeping, readbacks, statistics.

Used by (64, showing 40)

• MouseCaptureSystemThirdPersonShooter
• OrbitSystemEcsStressTest
• AnimationSystemVixen.Animation
• AudioSystemVixen.Audio
• BehaviorLateUpdateSystemVixen.Engine
• BehaviorLifecycleSystemVixen.Engine
• BehaviorUpdateSystemVixen.Engine
• CameraDirectorSystemVixen.Engine
• CameraExtractionSystemVixen.Rendering
• CharacterMovementSystemVixen.Physics
• ConstraintGizmoSystemVixen.Animation
• CoroutineEndOfFrameSystemVixen.Engine
• CoroutineFixedStepSystemVixen.Engine
• CoroutineLateUpdateSystemVixen.Engine
• CoroutineUpdateSystemVixen.Engine
• DebugDrawSystemVixen.Engine
• DiagnosticOverlaySystemVixen.Engine
• EngineLoopVixen.Engine
• EngineLoopTestsVixen.Engine.Tests
• InputPhaseSystemVixen.Ecs.Tests
• InputUpdateSystemVixen.Engine
• LightExtractionSystemVixen.Rendering
• LocalPlayerSystemVixen.Net.Engine
• MeshExtractionSystemVixen.Rendering
• NavigationSystemVixen.Navigation
• NetworkAnimatorApplySystemVixen.Net.Animation
• NetworkAnimatorCaptureSystemVixen.Net.Animation
• NetworkAudioApplySystemVixen.Net.Audio
• NetworkAudioCaptureSystemVixen.Net.Audio
• NetworkBonesApplySystemVixen.Net.Animation
• NetworkBonesCaptureSystemVixen.Net.Animation
• NetworkRigidBodyCaptureSystemVixen.Net.Physics
• NetworkRigidBodyCorrectionSystemVixen.Net.Physics
• NetworkSpawnSystemVixen.Net.Engine
• NetworkTransformApplySystemVixen.Net.Engine
• NetworkTransformCaptureSystemVixen.Net.Engine
• PhysicsDebugDrawSystemVixen.Physics
• PhysicsInterpolationSystemVixen.Physics
• PhysicsStepSystemVixen.Physics
• PhysicsSyncSystemVixen.Physics