Timeline

Since 2.2.0

Timeline sequences an FX with tracks and clips. It can gate objects, restart them with deterministic seeds, animate transforms and emitter runtime properties, change simulation speed, dispatch signals, play sounds, and request post effects.

The maximized editor shows the Timeline in context with the animated Scene, target Inspector, Resources, and Hierarchy.

Built-in Track Types

Track	Controls
Activator	Whether one target object is active during clip ranges.
Control	Which object/subtree is restarted and played by each clip.
Animation	Transform or registered emitter Runtime properties.
Speed	Hierarchical simulation timeScale.
Signal	Named events with CompoundTag data.
Audio	Sound, volume/pitch envelopes, and optional target position.
Post Process	Per-frame weighted post-effect requests and parameter overrides.
Group	Organizes tracks and applies hierarchy/mute structure.

Runtime Clock

The always-on FX root advances TimelinePlayer once per particle-engine tick. A per-frame pass samples fractional time for smooth transform animation and submits active post-process clips. This keeps simulation deterministic at ticks while rendering interpolated motion.

Empty Timelines

Legacy and simple effects may have no Timeline data. An empty Timeline adds no playback work and the FX finishes according to its emitters exactly as before.

Continue Reading

• Editor and Playback
• Tracks and Clips
• Animation and Recording
• Activator, Control, and Speed
• Signals, Audio, Groups, and Post Process