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SDK 0.9
SDK 0.9
  • Welcome
  • Overview
    • What is coherence?
    • How does coherence work?
    • Features and Roadmap
    • Rooms and Worlds
    • Requirements
    • Release Notes
  • Get Started
    • Install coherence
    • Scene setup
    • Prefab setup
    • Baking and code generation
    • Build and run
    • Create a free account
    • Deploy Replication Server
    • Share builds
    • Troubleshooting
  • Authority and communication
    • How authority works
    • Authority transfer
    • Commands
    • Simulation frame
    • Client connections
    • Server-authoritative setup
    • GGPO
    • Animations
    • Value sync callbacks
  • Persistence
    • Overview
    • Configuring persistence
    • Storage
    • Example – a global counter
  • Optimization
    • Overview
    • Simulation frequency
    • Areas of interest
    • Level of detail
    • Interpolation
  • Connected entities
    • Overview
    • Entity references
    • Parent-child relationships
    • CoherenceNode
  • Simulators
    • Overview
    • Client vs Simulator logic
    • Build and deploy
    • Simulator load balancing
    • Room Simulators
    • Multi-Room Simulators (advanced)
    • World Simulators
    • Simulator slugs
    • Testing Simulators locally
  • Tutorial project
    • Get the Tutorial Project
    • Start Tutorial
      • 1. Transforms
      • 2. Physics
      • 3. Persistence
      • 4. Animation and variables
      • 5. AI navigation
      • 6. Network commands
      • 7. Team-based
      • 8. Connected Entities
  • Game Services
    • Game account
    • Key-value store
    • Matchmaking
  • Developer Portal
    • Overview
    • Dashboard
    • Enabling game services
    • Configure Rooms
    • Manage Worlds
  • API reference
    • coherence SDK
      • CoherenceSync
      • MonoBridge
      • LiveQuery
      • Level of detail
      • Sample UI
      • Settings window
      • Custom bindings (advanced)
      • PlayResolver
      • Rooms
      • Worlds
    • Cloud API
      • API tokens and keys
      • Game account
      • Key-value store
      • Matchmaking
    • Replication Server
    • Simulation Server
  • Schema reference
    • Overview
    • Specification
    • Field settings
    • Archetypes in schemas
  • Resources
    • Downloads
    • SDK update guide
    • Video tutorials
    • Order of execution
    • Glossary
    • CLI utilities
    • Simulator CLI arguments
    • Helper scripts
    • Troubleshooting
    • Continuous Integration setup
  • Community
    • Community
  • Additional information
    • Pricing
    • SLA
    • Unreal Engine support
    • WebGL
    • Peer-to-Peer (P2P)
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  • Global simulator frequency
  • Per-binding sampling frequency

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  1. Optimization

Simulation frequency

Last updated 2 years ago

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Without a special configuration, Entity data is captured at the highest possible frequency and sent to the Replication Server. This often generates more data than is needed to efficiently replicate the Entity's state across the network.

Global simulator frequency

On a Simulator, we can limit the framerate globally using Unity's built-in static variable targetFrameRate.

Application.targetFrameRate = 10;

coherence will automatically limit the target framerate of uploaded Simulators to 30 frames per second. We plan to make it possible to lift this restriction in the future. Check back for updates in the next couple of releases.

Per-binding sampling frequency

Replication frequency can be configured for each binding individually in the Prefab Optimize window. The Sample Rate controls how many times per second values are sampled and synced over the network.

High sample rates increase replication accuracy and reduce latency, but consume more bandwidth. The upper limit at which samples can be quantized is 60hz, so sample rates beyond that are generally not recommended. It is not possible to change sampling frequency at runtime.

Values that don't change over time do not consume any bandwidth. Only bindings with updated values will be synced over the network.

Use the Sample Rate to keep down bandwidth costs when scaling up.