feat(render): Phase U.2d — ACDREAM_PROBE_VIS visibility probe in RenderingDiagnostics
Add the durable per-frame visibility probe apparatus that #103 lacked, so the Phase U portal-visibility builder can be validated on live frames before any GL/visual work. EmitVis(rootCellId, visibleCells, outsidePolyCount, outsidePlaneCount, perCellPlaneCounts, scissorFallbacks) prints ONE concise [vis] line gated on root-cell CHANGE (private _lastVisRootCellId tracker; no-op when the root is unchanged or ProbeVisibilityEnabled is false — one bool compare per frame when off). Line format: [vis] root=0x… cells=N ids=[…] outside(polys=…,planes=…) percell=[0x…:N,…] fallbacks=… Reuses the existing Phase A8 ProbeVisibilityEnabled flag (env ACDREAM_PROBE_VIS, already DebugPanel-mirrored via DebugVM.ProbeVisibility) rather than adding a parallel owner — Code Structure Rule 5 (one diagnostic owner per subsystem). Property doc repurposed from the abandoned A8 two-pipe stencil semantics to the Phase U unified pipeline. Decoupling note: RenderingDiagnostics lives in AcDream.Core, which must not reference AcDream.App (Code Structure Rule 2). The plan's EmitVis signature took an App-layer CellView; this lands the equivalent as pre-computed primitives (outsidePolyCount + outsidePlaneCount) so the owner stays in Core. The U.4a call site supplies OutsideView.Polygons.Count and the OutsideView ClipPlaneSet.Count. TDD: 3 new tests in RenderingDiagnosticsVisibilityTests (no-op when disabled, fires-once-per-new-root + suppressed-on-unchanged, env-default contract), each self-contained via internal ResetVisibilityProbeForTests + Console.Out capture to avoid the documented static-leak flakiness. Core suite +3 tests, no new failures (flaky physics/input static-leak set unchanged at 16, untouched area). Courtesy: removed the dangling RenderInsideOutAcdream comment reference (deleted in U.1) + the AcDream.App.Rendering.Wb doc cref (a Core→App layer inversion). The emit SITE wiring (per-frame call from the render loop) lands in U.4a; this task lands only the owner members + formatter + test. GameWindow untouched. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Erik
parent
a83b4306f8
commit
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2 changed files with 231 additions and 7 deletions
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@ -1,4 +1,6 @@
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace AcDream.Core.Rendering;
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@ -77,25 +79,129 @@ public static class RenderingDiagnostics
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|| Environment.GetEnvironmentVariable("ACDREAM_PROBE_INDOOR_ALL") == "1";
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/// <summary>
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/// Phase A8 (2026-05-25): when true, the indoor-cell stencil pipeline
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/// emits one <c>[vis]</c> line per frame: camera-inside-cell flag,
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/// VisibleCellIds count, HasExitPortalVisible flag, portal triangle
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/// count uploaded, and which outdoor passes were stencil-gated.
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/// When true, the unified portal-visibility pass emits one <c>[vis]</c>
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/// line whenever the camera's root cell CHANGES (see <see cref="EmitVis"/>):
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/// root cell id, visible-cell count + ids, the single OutsideView's polygon
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/// + plane counts, a per-cell plane-count summary, and the scissor-fallback
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/// count for the frame. This is the runtime apparatus #103 lacked — it lets
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/// us confirm "OutsideView non-empty and narrowing at the cellar window" off
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/// a live launch.log before any GL/visual work.
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/// Initial state from <c>ACDREAM_PROBE_VIS=1</c>.
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/// <para>
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/// Phase U.2d (2026-05-30) repurposed this flag from the abandoned A8
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/// two-pipe stencil pass to the Phase U unified pipeline. The env var name +
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/// the DebugPanel mirror (<c>DebugVM.ProbeVisibility</c>) are unchanged.
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/// </para>
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/// </summary>
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public static bool ProbeVisibilityEnabled { get; set; } =
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Environment.GetEnvironmentVariable("ACDREAM_PROBE_VIS") == "1";
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// Cell-change gate for EmitVis. The probe fires once per distinct root cell
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// so launch.log stays readable under motion (the per-frame call is a no-op
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// when the root is unchanged). Sentinel 0 = "no root yet" — the first real
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// root id always differs and fires. Reset between tests via
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// ResetVisibilityProbeForTests so the gate doesn't leak across cases.
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private static uint _lastVisRootCellId;
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/// <summary>
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/// Emit ONE concise, information-dense <c>[vis]</c> line for the portal-
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/// visibility frame, but only when <see cref="ProbeVisibilityEnabled"/> is
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/// true AND <paramref name="rootCellId"/> differs from the last root the
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/// probe reported (cell-change gating). Cheap no-op otherwise.
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/// <para>
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/// Decoupled by design: the OutsideView is passed as pre-computed
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/// <paramref name="outsidePolyCount"/> + <paramref name="outsidePlaneCount"/>
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/// primitives rather than the App-layer <c>CellView</c>/<c>ClipPlaneSet</c>
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/// types, because this owner lives in <c>AcDream.Core</c> and Core must not
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/// reference the App project (Code Structure Rule 2). The U.4a call site
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/// supplies <c>OutsideView.Polygons.Count</c> and the OutsideView's
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/// <c>ClipPlaneSet.Count</c>.
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/// </para>
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/// </summary>
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/// <param name="rootCellId">The camera's root cell id (the BFS seed).</param>
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/// <param name="visibleCells">Ordered visible cell ids for this frame.</param>
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/// <param name="outsidePolyCount">Polygon count of the single OutsideView region.</param>
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/// <param name="outsidePlaneCount">Clip-plane count the OutsideView reduced to (0 ⇒ scissor/empty).</param>
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/// <param name="perCellPlaneCounts">Per-cell clip-plane count (cell id → plane count).</param>
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/// <param name="scissorFallbacks">Number of regions that fell back to a scissor AABB this frame.</param>
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public static void EmitVis(uint rootCellId,
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IReadOnlyList<uint> visibleCells,
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int outsidePolyCount,
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int outsidePlaneCount,
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IReadOnlyDictionary<uint, int> perCellPlaneCounts,
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int scissorFallbacks)
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{
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if (!ProbeVisibilityEnabled) return;
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if (rootCellId == _lastVisRootCellId) return; // unchanged root ⇒ suppress
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_lastVisRootCellId = rootCellId;
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int cellN = visibleCells?.Count ?? 0;
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var sb = new StringBuilder(160);
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sb.Append("[vis] root=0x").Append(rootCellId.ToString("X8"));
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sb.Append(" cells=").Append(cellN);
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// Visible cell id list, capped so a wide BFS doesn't blow up the line.
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sb.Append(" ids=[");
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if (visibleCells is not null)
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{
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const int MaxIds = 12;
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int shown = 0;
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foreach (uint id in visibleCells)
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{
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if (shown >= MaxIds) { sb.Append(",..."); break; }
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if (shown > 0) sb.Append(',');
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sb.Append("0x").Append(id.ToString("X8"));
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shown++;
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}
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}
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sb.Append(']');
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sb.Append(" outside(polys=").Append(outsidePolyCount)
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.Append(",planes=").Append(outsidePlaneCount).Append(')');
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// Per-cell plane-count summary, capped like the id list.
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sb.Append(" percell=[");
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if (perCellPlaneCounts is not null)
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{
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const int MaxPerCell = 12;
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int shown = 0;
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foreach (var kv in perCellPlaneCounts)
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{
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if (shown >= MaxPerCell) { sb.Append(",..."); break; }
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if (shown > 0) sb.Append(',');
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sb.Append("0x").Append(kv.Key.ToString("X8")).Append(':').Append(kv.Value);
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shown++;
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}
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}
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sb.Append(']');
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sb.Append(" fallbacks=").Append(scissorFallbacks);
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Console.WriteLine(sb.ToString());
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}
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/// <summary>
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/// Reset the <see cref="EmitVis"/> cell-change gate. Test-only — this is a
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/// process-wide static and the gate would otherwise leak across test cases
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/// (this codebase has documented static-leak flakiness; keep tests
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/// self-contained). Not part of the public runtime surface.
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/// </summary>
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internal static void ResetVisibilityProbeForTests() => _lastVisRootCellId = 0;
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private static bool _probeEnvCellEnabled =
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Environment.GetEnvironmentVariable("ACDREAM_PROBE_ENVCELL") == "1";
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/// <summary>
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/// Phase A8 Task 9 (2026-05-28): when true, RenderInsideOutAcdream's
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/// Phase A8 Task 9 (2026-05-28): when true, the indoor EnvCell draw path's
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/// <c>[envcells]</c> probe emits one line per indoor frame —
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/// CellsRendered / TrianglesDrawn from <see cref="AcDream.App.Rendering.Wb"/>'s
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/// <c>EnvCellRenderer.Stats</c> + ourBldgs/otherBldgs/filterCnt.
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/// CellsRendered / TrianglesDrawn from <c>EnvCellRenderer.Stats</c> +
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/// ourBldgs/otherBldgs/filterCnt.
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/// Also enabled implicitly when <see cref="ProbeVisibilityEnabled"/> is true.
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/// Initial state from <c>ACDREAM_PROBE_ENVCELL=1</c>.
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/// (The two-pipe <c>RenderInsideOutAcdream</c> pass that originally owned
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/// this probe was removed in Phase U.1; the env var + the
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/// <c>EnvCellRenderer.Stats</c> source remain.)
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/// </summary>
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public static bool ProbeEnvCellEnabled
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{
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