From c7b832db4c5d3e05d091d59e547d1eca7aad170d Mon Sep 17 00:00:00 2001 From: Fr0zka Date: Tue, 15 Sep 2026 17:42:54 +0200 Subject: [PATCH] docs(work-next): the tunnel SDF/core merge is closed -- the world core is load-bearing Records why the merge must not be re-proposed without a new idea. WorldControlPoints keep the authored room-floor anchors and walkable routes before cave warp; replacing them lost 1,146 fit / 975 walk-reachable cells, and the exact shared-segment variant was slower. The remaining large costs are the geometry itself, so the exact-skip perf push has reached diminishing returns; the reach proofs are now guarded by an automation test (8ef1a3b). Co-Authored-By: Claude Opus 5 Claude-Session: https://claude.ai/code/session_01TaFdXhTdYMkW1xrV6ApT6Y --- WORK-NEXT.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/WORK-NEXT.md b/WORK-NEXT.md index c35c5c9..651ad3d 100644 --- a/WORK-NEXT.md +++ b/WORK-NEXT.md @@ -239,6 +239,14 @@ test for the reach proofs. **Parked:** `wip/exact-cull-20260914` (per-sample culls, a 23% always-on regression; only its gate fix was ported). +**CLOSED 2026-09-15: the tunnel SDF/core merge. Do not re-propose it without a new idea.** The +world-space core is load-bearing: `WorldControlPoints` keep the authored room-floor anchors and +walkable routes before cave warp (`8e42d6d`, `cf2b2ad`). Replacing it cost 1,146 fit / 975 +walk-reachable cells; the exact shared-segment variant was 5.6-12.6% SLOWER. The remaining big +costs (tunnel core ~20%, tunnel SDF ~13%) are the geometry itself, so the exact-skip perf push has +reached diminishing returns. The reach proofs are now guarded by +`VoxelForge.Correctness.TilePostReachProof`. + ### Open design questions for the owner - All five strate slots resolve to `DA_Strate3`. Intended? - Should a composer roll be allowed to overwrite an explicitly authored value?