Upload preprocess_manual.js

preprocess_manual.js

@@ -1148,7 +1148,20 @@ console.log('  Center:', {
 });
 
 console.log('[preprocessManual] ✓ PLY coordinates preserved (CAMERA space)');
-
+// ⭐ ここに追加 12/17 22:00 ⭐
+console.log('[preprocessManual] ===== COORDINATE SYSTEM CHECK =====');
+const worldOriginInCameraSpace = new THREE.Vector3(0, 0, 0);
+worldOriginInCameraSpace.applyMatrix4(camera.matrixWorldInverse);
+console.log('  World origin (0,0,0) in camera space:', {
+  x: worldOriginInCameraSpace.x.toFixed(3),
+  y: worldOriginInCameraSpace.y.toFixed(3),
+  z: worldOriginInCameraSpace.z.toFixed(3)
+});
+console.log('  Camera position in world space:', {
+  x: camera.position.x.toFixed(3),
+  y: camera.position.y.toFixed(3),
+  z: camera.position.z.toFixed(3)
+});
 
 // ========================================
 // 2. 世界座標→カメラ座標の変換関数