Initial brainstorm assumed N.5 retirement broke EnvCell rendering by
leaving _pendingCellMeshes unconsumed. Pivoted mid-brainstorm:
- WB's PrepareMeshData routes EnvCell dat-record types to
PrepareEnvCellMeshData (ObjectMeshManager.cs:557) which produces an
IsSetup=true ObjectMeshData with the floor mesh as EnvCellGeometry.
- WbDrawDispatcher correctly handles IsSetup=true (line 607-621) by
iterating SetupParts and drawing each.
- DefaultDatReaderWriter loads region cell dats; ResolveId resolves
envCellId correctly.
- LandblockSpawnAdapter calls IncrementRefCount on every entity's
GfxObjId, including envCellId for cell entities. ServerGuid==0 passes
the atlas-tier filter.
Chain is structurally intact. The bug is somewhere subtler.
Spec pivots to a diagnostics-first phase: ACDREAM_PROBE_INDOOR=1
captures per-frame cell-entity walk + render-data lookup + SetupParts
traversal + composed-transform values. Six hypotheses (WB silently
returns null, empty batches, cull bug, double-spawn, transform
double-apply, dispatcher MeshRefs mismatch) match six concrete fix
shapes. Phase 2 design follows the probe data.
This is more honest than the original "build a new upload path"
design, which would have hidden the actual bug.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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