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docs #429 + probe: frame stalls are pack-independent (~1.7/s both arms); the pack converts them into visible player jumps (59 vs 3); prediction-snap theory dead
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Adds the TEMPORARY PlayerPresentationProbe (ACDREAM_PROBE_PLAYER_PRESENT)
per the #429 apparatus plan and records the measured two-arm evidence in
the issue. Probe strips with the fix.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-08-23 21:21:04 +02:00
parent 9deb1a28cf
commit ca4bae776c
3 changed files with 116 additions and 0 deletions
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8
src/AcDream.App/Rendering/WorldRenderFrameBuilder.cs
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@ -450,6 +450,10 @@ internal sealed class RuntimeWorldFrameEnvironmentPreparation
private readonly HashSet<uint> _visibleCells = [];
private bool _visibleCellsValid;
/// <summary>TEMPORARY #429 — see <see cref="PlayerPresentationProbe"/>.</summary>
private readonly PlayerPresentationProbe? _playerPresentProbe =
PlayerPresentationProbe.CreateFromEnvironment();
public RuntimeWorldFrameEnvironmentPreparation(
RuntimeOptions options,
WorldTimeService worldTime,
@ -485,6 +489,10 @@ internal sealed class RuntimeWorldFrameEnvironmentPreparation
activeDayGroup,
camera.Position);
// TEMPORARY #429 apparatus — one CSV row per frame; off unless
// ACDREAM_PROBE_PLAYER_PRESENT names a file. Strip with the fix.
_playerPresentProbe?.Observe(camera.Position, roots.PlayerViewPosition);
UpdateSunFromSky(foundation.Sky, roots.PlayerInsideCell);
_lighting.UpdateViewerLight(roots.PlayerViewPosition);
_lighting.Tick(camera.Position);