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j.foucher f6efc00c73 Add LoadSceneAdditive / UnloadSceneAdditive for briefing scene preload

Lets a briefing scene materialize only the preload-tagged actors from a
scenario .pss (player placement markers, briefing props) without
clearing the current world, pushing timeline data, registering ActorIds,
or starting any auto-play. The actors spawned by each LoadSceneAdditive
call are tracked in a static TWeakObjectPtr array; UnloadSceneAdditive
destroys every still-valid one and clears the array.

Typical BP usage on scenario change:
  UnloadSceneAdditive(this) -> LoadSceneAdditive(this, NewSceneName)

No BP-side bookkeeping required. Filter defaults to PreloadOnly which
matches the intended briefing use case; the parameter stays exposed for
other niche cases (ExcludePreload, All).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-20 15:10:52 +02:00

.claude/memory

Update memory notes for UE 5.7 host project (was 5.5)

2026-05-20 15:09:17 +02:00

docs

Add PS_Editor user documentation (PPTX + PDF)

2026-04-17 16:30:08 +02:00

Add ui elements

2026-04-20 07:36:23 +02:00

Unreal

Add LoadSceneAdditive / UnloadSceneAdditive for briefing scene preload

2026-05-20 15:10:52 +02:00