From 309d8281caaedffdcc55d020690467d246577098 Mon Sep 17 00:00:00 2001
From: Your Name <your.email@example.com>
Date: Tue, 26 May 2026 21:21:25 +0800
Subject: [PATCH] fix: prefer high quality world splats

---
 lib/worldlabs/splat-utils.ts | 83 ++++--------------------------------
 1 file changed, 8 insertions(+), 75 deletions(-)

diff --git a/lib/worldlabs/splat-utils.ts b/lib/worldlabs/splat-utils.ts
index 65fcd5a70..cc1201f09 100644
--- a/lib/worldlabs/splat-utils.ts
+++ b/lib/worldlabs/splat-utils.ts
@@ -59,74 +59,13 @@ export function pickBestWorldLabsSplatUrl(
   return pickBestWorldLabsSplatEntry(spzUrls)?.[1] || null;
 }
 
-// World Labs exports multiple SPZ tiers (for example 100k / 500k / full).
-// For embedded previews we bias hard toward the lightweight tier so users see
-// the world quickly, then can switch to imagery / mesh for detail if needed.
-const INLINE_WORLDLABS_SPLAT_TARGET_SCORE = 100_000;
-
-function pickClosestResolutionEntry(
-  entries: Array<[string, string]>,
-  targetScore: number
-) {
-  if (!entries.length) return null;
-
-  const scoredEntries = entries
-    .map((entry) => ({
-      entry,
-      score: parseResolutionScore(entry[0]),
-    }))
-    .filter(
-      (item) =>
-        Number.isFinite(item.score) &&
-        item.score > 0 &&
-        item.score !== Number.MAX_SAFE_INTEGER
-    );
-
-  if (!scoredEntries.length) {
-    return entries[0] || null;
-  }
-
-  return scoredEntries
-    .slice()
-    .sort((left, right) => {
-      const distanceDelta =
-        Math.abs(left.score - targetScore) - Math.abs(right.score - targetScore);
-      if (distanceDelta !== 0) return distanceDelta;
-      return left.score - right.score;
-    })[0]?.entry || null;
-}
-
-function getResolutionDistance(entry: [string, string], targetScore: number) {
-  const score = parseResolutionScore(entry[0]);
-  if (
-    !Number.isFinite(score) ||
-    score <= 0 ||
-    score === Number.MAX_SAFE_INTEGER
-  ) {
-    return Number.MAX_SAFE_INTEGER;
-  }
-  return Math.abs(score - targetScore);
-}
-
 function compareInlineSplatEntries(
   left: [string, string],
   right: [string, string]
 ) {
-  const leftDistance = getResolutionDistance(
-    left,
-    INLINE_WORLDLABS_SPLAT_TARGET_SCORE
-  );
-  const rightDistance = getResolutionDistance(
-    right,
-    INLINE_WORLDLABS_SPLAT_TARGET_SCORE
-  );
-  if (leftDistance !== rightDistance) return leftDistance - rightDistance;
-
-  const leftScore = parseResolutionScore(left[0]);
-  const rightScore = parseResolutionScore(right[0]);
-  if (leftScore !== rightScore) return leftScore - rightScore;
-
-  return left[0].localeCompare(right[0], "en");
+  // World Labs exposes multiple SPZ tiers; the canvas should show the highest
+  // quality available first and keep lower tiers only as load fallbacks.
+  return compareSplatEntries(left, right);
 }
 
 const KNOWN_ARCHIVED_ASSET_HOSTS = [
@@ -204,17 +143,11 @@ export function pickPreferredInlineWorldLabsSplatEntry(
   spzUrls?: Record<string, string> | null
 ) {
   const archivedEntries = getArchivedWorldLabsSplatEntries(spzUrls);
-  if (archivedEntries.length > 0) {
-    return pickClosestResolutionEntry(
-      archivedEntries,
-      INLINE_WORLDLABS_SPLAT_TARGET_SCORE
-    );
-  }
-
-  return pickClosestResolutionEntry(
-    getSortedWorldLabsSplatEntries(spzUrls),
-    INLINE_WORLDLABS_SPLAT_TARGET_SCORE
-  );
+  const sourceEntries =
+    archivedEntries.length > 0
+      ? archivedEntries
+      : getSortedWorldLabsSplatEntries(spzUrls);
+  return sourceEntries.slice().sort(compareInlineSplatEntries)[0] || null;
 }
 
 export function pickPreferredInlineWorldLabsSplatUrl(