/// apple platform compatibility reference

Can I use it?
on iOS · visionOS · macOS ···

Every public RealityKit component type — which SDK versions expose it, whether Reality Composer Pro surfaces it in the Add Component menu, and what's platform-exclusive.

62 components

28 in RCP

5 visionOS-only

2 iOS-only

7 new in 26.0

latest RCP findings

Evidence-backed reverse-engineering notes

browse all notes

ParticleEmitterComponent 2026-03-19

ParticleEmitterComponent uses RealityKit.VFXEmitter with a two-tier schema: top-level timing/shape/spawning on currentState, and particle properties inside mainEmitter/spawnedEmitter structs.

The particle emitter fixture set is large and sparse-authored. The canonical shape is `RealityKit.VFXEmitter` with `currentState`, `mainEmitter`, and `spawnedEmitter`, and the most useful public references are now the schema page plus per-component CSV exports.

AudioMixGroupsComponent 2026-03-13

Audio Mix Groups is a mixer-driven component: the inspector launches the editor, but the authored state lives outside a normal inline parameter block.

Fixture diffs show the inspector card is only a launcher. Real state lands in child `RealityKitAudioMixGroup` prims (`gain`, `mute`, `speed`) plus external `RealityKitAudioFile` prims routed with `rel mixGroup`.

AmbientAudioComponent 2026-02-19

AmbientAudio Preview Resource selection is not authored directly on the AmbientAudio component in current fixtures.

Resource choice appears in AudioLibrary resources plus RealityKitAudioFile prims, while AmbientAudio keeps only component-local fields like gain.

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Can I use it? on iOS · visionOS · macOS ···

Evidence-backed reverse-engineering notes

ParticleEmitterComponent uses RealityKit.VFXEmitter with a two-tier schema: top-level timing/shape/spawning on currentState, and particle properties inside mainEmitter/spawnedEmitter structs.

Audio Mix Groups is a mixer-driven component: the inspector launches the editor, but the authored state lives outside a normal inline parameter block.

AmbientAudio Preview Resource selection is not authored directly on the AmbientAudio component in current fixtures.

Can I use it?
on iOS · visionOS · macOS ···