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feat: increase triangle safety cap to 20M and enhance progress reporting during subdivision

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CNCKitchen
2026-04-02 15:14:53 +02:00
parent 6ad91f9707
commit ccf77c988a
4 changed files with 28 additions and 7 deletions
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js/subdivision.js
+16 -2
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@@ -15,7 +15,7 @@
import * as THREE from 'three';
const QUANTISE = 1e4;
const SAFETY_CAP = 10_000_000; // absolute OOM guard
const SAFETY_CAP = 20_000_000; // absolute OOM guard
// ── Public entry point ───────────────────────────────────────────────────────
@@ -59,6 +59,19 @@ export async function subdivide(geometry, maxEdgeLength, onProgress, faceWeights
break;
}
// Find longest edge for progress reporting
let maxEdgeLenSq = 0;
for (let t = 0; t < currentIndices.length; t += 3) {
const a = currentIndices[t], b = currentIndices[t + 1], c = currentIndices[t + 2];
const ab = edgeLenSq(positions, a, b);
const bc = edgeLenSq(positions, b, c);
const ca = edgeLenSq(positions, c, a);
if (ab > maxEdgeLenSq) maxEdgeLenSq = ab;
if (bc > maxEdgeLenSq) maxEdgeLenSq = bc;
if (ca > maxEdgeLenSq) maxEdgeLenSq = ca;
}
const longestEdge = Math.sqrt(maxEdgeLenSq);
const { newIndices, newFaceExcluded, newFaceParentId, changed } = subdividePass(
positions, normals, weights, currentIndices, maxEdgeLength, SAFETY_CAP, currentFaceExcluded,
canonIdx, posCanonMap, currentFaceParentId
@@ -69,7 +82,8 @@ export async function subdivide(geometry, maxEdgeLength, onProgress, faceWeights
if (newIndices.length / 3 >= SAFETY_CAP) safetyCapHit = true;
if (onProgress) onProgress(Math.min(0.95, (iter + 1) / maxIterations));
const newTriCount = newIndices.length / 3;
if (onProgress) onProgress(Math.min(0.95, (iter + 1) / maxIterations), newTriCount, longestEdge);
await new Promise(r => setTimeout(r, 0));
if (!changed || safetyCapHit) break;
}