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log.md

@@ -1,5 +1,4 @@
-Live reload enabled.
-preprocess_manual.js:16 [preprocess_manual.js] ===== MODULE LOADING =====
+[preprocess_manual.js] ===== MODULE LOADING =====
 main.js:16 [MAIN] DOMContentLoaded fired
 main.js:269 [MAIN] Calling setupPathsFromUrlOrSelect...
 main.js:46 [MAIN] setupPathsFromUrlOrSelect started
@@ -21,32 +20,32 @@ main.js:190 [MAIN] Manual file selected: fountain_trim9.ply Extension: ply
 main.js:198 [MAIN] Reading manual file...
 main.js:201 [MAIN] Manual file read complete, size: 57407083
 main.js:209 [MAIN] Manual mode file loaded: fountain_trim9.ply
-main.js:210 [MAIN] gsPath: blob:http://127.0.0.1:5500/4676d105-447c-4fab-b7dc-2bf6a2d37ed1
+main.js:210 [MAIN] gsPath: blob:http://127.0.0.1:5500/c951d997-a0b3-4c4f-8b76-7b80daeabd37
 main.js:211 [MAIN] gsFileName: fountain_trim9.ply
 main.js:110 [MAIN] Hiding select UI
 main.js:215 [MAIN] ===== Resolving with MANUAL MODE =====
 main.js:261 [MAIN] File load promise resolved: Object
 main.js:271 [MAIN] setupPathsFromUrlOrSelect returned: Object
 main.js:277 [MAIN] After pathResult:
-main.js:278   - gsPath: blob:http://127.0.0.1:5500/4676d105-447c-4fab-b7dc-2bf6a2d37ed1
+main.js:278   - gsPath: blob:http://127.0.0.1:5500/c951d997-a0b3-4c4f-8b76-7b80daeabd37
 main.js:279   - gvrmPath: undefined
 main.js:280   - isManualMode: true
 main.js:283 [MAIN] Initializing renderer...
 main.js:289 [MAIN] Initializing camera...
 main.js:316 [MAIN] Initializing scene...
 main.js:323 [MAIN] Three.js initialization complete
-main.js:506 [MAIN] Processing GS file: blob:http://127.0.0.1:5500/4676d105-447c-4fab-b7dc-2bf6a2d37ed1
+main.js:506 [MAIN] Processing GS file: blob:http://127.0.0.1:5500/c951d997-a0b3-4c4f-8b76-7b80daeabd37
 main.js:507 [MAIN] Manual mode: true
 main.js:519 [MAIN] fileName: fountain_trim9.gvrm
 main.js:529 [MAIN] ===== STARTING MANUAL PREPROCESSING MODE =====
 main.js:530 [MAIN] Parameters:
 main.js:531   - vrmPath: ./assets/sotai.vrm
-main.js:532   - gsPath: blob:http://127.0.0.1:5500/4676d105-447c-4fab-b7dc-2bf6a2d37ed1
+main.js:532   - gsPath: blob:http://127.0.0.1:5500/c951d997-a0b3-4c4f-8b76-7b80daeabd37
 main.js:533   - fileName: fountain_trim9.gvrm
 preprocess_manual.js:977 [preprocessManual] ===== FUNCTION CALLED =====
 preprocess_manual.js:978 [preprocessManual] Parameters:
 preprocess_manual.js:979   vrmPath: ./assets/sotai.vrm
-preprocess_manual.js:980   gsPath: blob:http://127.0.0.1:5500/4676d105-447c-4fab-b7dc-2bf6a2d37ed1
+preprocess_manual.js:980   gsPath: blob:http://127.0.0.1:5500/c951d997-a0b3-4c4f-8b76-7b80daeabd37
 preprocess_manual.js:981   fileName: fountain_trim9.gvrm
 preprocess_manual.js:984 [preprocessManual] Creating Promise...
 preprocess_manual.js:84 [createManualUI] Creating manual preprocessing UI...
@@ -81,7 +80,6 @@ preprocess_manual.js:1610 [preprocessManual] Camera positioned at: Object
 preprocess_manual.js:1617 [preprocessManual] Initial box setup - size: Object
 preprocess_manual.js:1660 [preprocessManual] UI sliders initialized to PLY-aligned values
 preprocess_manual.js:1666 [preprocessManual] ✓ Camera and Box aligned to PLY
-preprocess_manual.js:1546 [animateControls] Status check: Object
 preprocess_manual.js:1399 
 
 
@@ -192,8 +190,8 @@ preprocess_manual.js:2048 [STEP 5] Centering splats...
 preprocess_manual.js:2066 [STEP 5] Before centering: Object
 preprocess_manual.js:2076 [STEP 5] ✓ Splats centered to origin
 preprocess_manual.js:2079 [STEP 6] Saving filtered PLY...
-preprocess_manual.js:770 [downloadPLY] Downloaded: 4676d105-447c-4fab-b7dc-2bf6a2d37ed1_filtered_2025-12-18T05-43-45.ply
-preprocess_manual.js:2102 [STEP 6] ✓ PLY saved: 4676d105-447c-4fab-b7dc-2bf6a2d37ed1_filtered_2025-12-18T05-43-45.ply
+preprocess_manual.js:770 [downloadPLY] Downloaded: c951d997-a0b3-4c4f-8b76-7b80daeabd37_filtered_2025-12-18T06-13-21.ply
+preprocess_manual.js:2102 [STEP 6] ✓ PLY saved: c951d997-a0b3-4c4f-8b76-7b80daeabd37_filtered_2025-12-18T06-13-21.ply
 preprocess_manual.js:2103 [STEP 6] Statistics:
 preprocess_manual.js:2104   Original: 231474 vertices
 preprocess_manual.js:2105   Filtered: 202550 vertices
@@ -219,40 +217,6 @@ preprocess_manual.js:2302 [setupBoneAssignment] Available bones: 54
 preprocess_manual.js:2303 [setupBoneAssignment] Bone names: Array(54)
 preprocess_manual.js:2343 [updateBoneSelector] Updating for mode: required19
 preprocess_manual.js:2355 [updateBoneSelector] Added 20 groups
-preprocess_manual.js:2577 [setupBoneAssignment] ✓ Improved splat selection system initialized
-preprocess_manual.js:2578 [setupBoneAssignment] Features:
-preprocess_manual.js:2579   - Finds nearest splat within 100px
-preprocess_manual.js:2580   - Paint mode with drag support
-preprocess_manual.js:2581   - Smooth brush strokes with interpolation
-preprocess_manual.js:2582   - Sphere selection with improved center detection
-preprocess_manual.js:3013 [setupBoneAssignment] ✓ Improved splat selection system initialized
-preprocess_manual.js:3014 [setupBoneAssignment] Features:
-preprocess_manual.js:3015   - Finds nearest splat within 50px (adjustable)
-preprocess_manual.js:3016   - Paint mode with drag support
-preprocess_manual.js:3017   - Smooth brush strokes with interpolation
-preprocess_manual.js:3018   - Sphere selection with improved center detection
-preprocess_manual.js:3027 [setupBoneAssignment] Camera controls initialized
-preprocess_manual.js:3040 [setupBoneAssignment] Setting up camera lock...
-preprocess_manual.js:3047 [setupBoneAssignment] ✓ Camera lock button found
-preprocess_manual.js:3111 [setupBoneAssignment] ✓ Camera lock button configured
-preprocess_manual.js:3112 [setupBoneAssignment] Initial state: UNLOCKED
-preprocess_manual.js:2405 [setupBoneAssignment] Paint mode enabled
-preprocess_manual.js:2390 [setupBoneAssignment] Selected target: group_0
-preprocess_manual.js:2909 Uncaught ReferenceError: getTargetColor is not defined
-    at applyAssignmentToIndices (preprocess_manual.js:2909:25)
-    at handlePaintAtPosition (preprocess_manual.js:2876:5)
-    at HTMLCanvasElement.<anonymous> (preprocess_manual.js:2475:3)Understand this error
-preprocess_manual.js:2909 Uncaught ReferenceError: getTargetColor is not defined
-    at applyAssignmentToIndices (preprocess_manual.js:2909:25)
-    at handlePaintAtPosition (preprocess_manual.js:2876:5)
-    at HTMLCanvasElement.<anonymous> (preprocess_manual.js:2835:3)Understand this error
-preprocess_manual.js:3134 [setupBoneAssignment] Assigning splats around center to group_0
-preprocess_manual.js:3154 [setupBoneAssignment] Group: 1. Head Bones: Array(1)
-preprocess_manual.js:2909 Uncaught ReferenceError: getTargetColor is not defined
-    at applyAssignmentToIndices (preprocess_manual.js:2909:25)
-    at HTMLCanvasElement.<anonymous> (preprocess_manual.js:2494:5)Understand this error
-preprocess_manual.js:2909 Uncaught ReferenceError: getTargetColor is not defined
-    at applyAssignmentToIndices (preprocess_manual.js:2909:25)
-    at HTMLCanvasElement.<anonymous> (preprocess_manual.js:2855:5)Understand this error
-preprocess_manual.js:3134 [setupBoneAssignment] Assigning splats around center to group_0
-preprocess_manual.js:3154 [setupBoneAssignment] Group: 1. Head Bones: Array(1)
+preprocess_manual.js:2720 [setupBoneAssignment] ✓ All helper functions and events initialized
+error.js:58 [setupBoneAssignment] Error: ReferenceError: selectSphereBtn is not defined
+    at preprocess_manual.

preprocess_manual.js

@@ -2412,18 +2412,160 @@ function setupBoneAssignment(ui, scene, camera, renderer, gvrm, character, filte
       ////helper関数挿入
 
 // ========================================
-// 完全なペイント・選択機能
-// "// ========================================
-// // Selection Radius
-// // ========================================"
-// の直後に追加してください
+// 🎯 挿入場所: setupBoneAssignment 関数内
+// ====helper関数挿入 の直後
 // ========================================
 
-// ========================================
-// Raycaster と マウスイベント
-// ========================================
-const raycaster = new THREE.Raycaster();
-const mouse = new THREE.Vector2();
+/**
+ * ターゲットの色を取得
+ */
+function getTargetColor(target) {
+  if (target.startsWith('group_')) {
+    const groupIndex = parseInt(target.replace('group_', ''));
+    const group = currentBoneGroups[groupIndex];
+    if (group && group.color) {
+      return group.color;
+    }
+  }
+  return [255, 255, 255];
+}
+
+/**
+ * ターゲットのボーンインデックスを取得
+ */
+function getTargetBoneIndices(target) {
+  const indices = [];
+  
+  if (target.startsWith('group_')) {
+    const groupIndex = parseInt(target.replace('group_', ''));
+    const group = currentBoneGroups[groupIndex];
+    
+    if (group && group.bones) {
+      group.bones.forEach(boneName => {
+        if (boneNameToIndex[boneName] !== undefined) {
+          indices.push(boneNameToIndex[boneName]);
+        }
+      });
+    }
+  }
+  
+  return indices;
+}
+
+/**
+ * ボーンインデックスからボーン名を取得
+ */
+function getBoneNameFromIndex(index) {
+  for (const [name, idx] of Object.entries(boneNameToIndex)) {
+    if (idx === index) {
+      return name;
+    }
+  }
+  return `bone_${index}`;
+}
+
+/**
+ * Splatに割り当てを適用
+ */
+function applyAssignmentToIndices(indices, target, isEraser) {
+  if (isEraser) {
+    indices.forEach(idx => {
+      if (assignmentData.splatBoneIndices[idx] >= 0) {
+        const oldBoneName = getBoneNameFromIndex(assignmentData.splatBoneIndices[idx]);
+        if (assignmentData.boneAssignments[oldBoneName]) {
+          const arrayIdx = assignmentData.boneAssignments[oldBoneName].indexOf(idx);
+          if (arrayIdx >= 0) {
+            assignmentData.boneAssignments[oldBoneName].splice(arrayIdx, 1);
+          }
+        }
+        assignmentData.splatBoneIndices[idx] = -1;
+        
+        filteredGs.colors[idx * 4 + 0] = 255;
+        filteredGs.colors[idx * 4 + 1] = 255;
+        filteredGs.colors[idx * 4 + 2] = 255;
+      }
+    });
+    console.log('[Paint] Erased', indices.length, 'splats');
+  } else {
+    const targetColor = getTargetColor(target);
+    const boneIndices = getTargetBoneIndices(target);
+    
+    if (boneIndices.length === 0) {
+      console.warn('[applyAssignmentToIndices] No bone indices found for target:', target);
+      return;
+    }
+    
+    indices.forEach(idx => {
+      assignmentData.splatBoneIndices[idx] = boneIndices[0];
+      
+      filteredGs.colors[idx * 4 + 0] = targetColor[0];
+      filteredGs.colors[idx * 4 + 1] = targetColor[1];
+      filteredGs.colors[idx * 4 + 2] = targetColor[2];
+      
+      boneIndices.forEach(boneIdx => {
+        const boneName = getBoneNameFromIndex(boneIdx);
+        if (!assignmentData.boneAssignments[boneName]) {
+          assignmentData.boneAssignments[boneName] = [];
+        }
+        if (!assignmentData.boneAssignments[boneName].includes(idx)) {
+          assignmentData.boneAssignments[boneName].push(idx);
+        }
+      });
+    });
+    console.log('[Paint] Painted', indices.length, 'splats with', target);
+  }
+  
+  filteredGs.splatMesh.updateDataTexturesFromBaseData(0, filteredGs.splatCount - 1);
+  updateStats();
+}
+
+/**
+ * 2D画面座標から最も近い3D Splatを検索
+ */
+function findNearestSplat(mouseX, mouseY, camera, filteredGs, maxScreenDistance = 100) {
+  const canvas = renderer.domElement;
+  const mousePixelX = (mouseX + 1) * canvas.width / 2;
+  const mousePixelY = (-mouseY + 1) * canvas.height / 2;
+  
+  let nearestSplatIndex = -1;
+  let nearestScreenDist = Infinity;
+  
+  const cameraPos = camera.position;
+  const worldPos = new THREE.Vector3();
+  const screenPos = new THREE.Vector3();
+  
+  for (let i = 0; i < filteredGs.splatCount; i++) {
+    worldPos.x = filteredGs.centers0[i * 3 + 0];
+    worldPos.y = filteredGs.centers0[i * 3 + 1];
+    worldPos.z = filteredGs.centers0[i * 3 + 2];
+    
+    screenPos.copy(worldPos);
+    screenPos.project(camera);
+    
+    if (screenPos.z > 1) continue;
+    
+    const screenPixelX = (screenPos.x + 1) * canvas.width / 2;
+    const screenPixelY = (-screenPos.y + 1) * canvas.height / 2;
+    
+    const dx = screenPixelX - mousePixelX;
+    const dy = screenPixelY - mousePixelY;
+    const screenDist = Math.sqrt(dx * dx + dy * dy);
+    
+    if (screenDist < maxScreenDistance && screenDist < nearestScreenDist) {
+      nearestScreenDist = screenDist;
+      nearestSplatIndex = i;
+    }
+  }
+  
+  if (nearestSplatIndex >= 0) {
+    return {
+      index: nearestSplatIndex,
+      screenDistance: nearestScreenDist
+    };
+  }
+  
+  return null;
+}
 
 /**
  * 球体範囲内の全Splatを検索
@@ -2451,10 +2593,83 @@ function findSplatsInSphere(center, radius, filteredGs) {
   return indicesInSphere;
 }
 
+/**
+ * ブラシ半径内の全Splatを返す
+ */
+function findNearestSplatWithRadius(mouseX, mouseY, camera, filteredGs, brushRadius) {
+  const canvas = renderer.domElement;
+  const mousePixelX = (mouseX + 1) * canvas.width / 2;
+  const mousePixelY = (-mouseY + 1) * canvas.height / 2;
+  
+  const affectedIndices = [];
+  const worldPos = new THREE.Vector3();
+  const screenPos = new THREE.Vector3();
+  
+  for (let i = 0; i < filteredGs.splatCount; i++) {
+    worldPos.x = filteredGs.centers0[i * 3 + 0];
+    worldPos.y = filteredGs.centers0[i * 3 + 1];
+    worldPos.z = filteredGs.centers0[i * 3 + 2];
+    
+    screenPos.copy(worldPos);
+    screenPos.project(camera);
+    
+    if (screenPos.z > 1) continue;
+    
+    const screenPixelX = (screenPos.x + 1) * canvas.width / 2;
+    const screenPixelY = (-screenPos.y + 1) * canvas.height / 2;
+    
+    const dx = screenPixelX - mousePixelX;
+    const dy = screenPixelY - mousePixelY;
+    const screenDist = Math.sqrt(dx * dx + dy * dy);
+    
+    if (screenDist < brushRadius) {
+      affectedIndices.push(i);
+    }
+  }
+  
+  return affectedIndices.length > 0 ? { indices: affectedIndices } : null;
+}
+
+/**
+ * ペイントモード用: マウスパスに沿ってSplatを塗る
+ */
+function findSplatsAlongMousePath(mouseX, mouseY, lastMouseX, lastMouseY, camera, filteredGs, brushRadius = 30) {
+  const affectedSplats = new Set();
+  
+  const steps = 5;
+  for (let step = 0; step <= steps; step++) {
+    const t = step / steps;
+    const interpX = lastMouseX + (mouseX - lastMouseX) * t;
+    const interpY = lastMouseY + (mouseY - lastMouseY) * t;
+    
+    const result = findNearestSplatWithRadius(interpX, interpY, camera, filteredGs, brushRadius);
+    if (result && result.indices) {
+      result.indices.forEach(idx => affectedSplats.add(idx));
+    }
+  }
+  
+  return Array.from(affectedSplats);
+}
+
+/**
+ * ペイント処理を実行
+ */
+function handlePaintAtPosition(mouseX, mouseY) {
+  const result = findNearestSplatWithRadius(mouseX, mouseY, camera, filteredGs, 30);
+  
+  if (result && result.indices.length > 0) {
+    applyAssignmentToIndices(result.indices, selectedTarget, paintModeEraser);
+  } else {
+    console.log('[Paint] No splats found under cursor');
+  }
+}
+
 // ========================================
 // マウスイベント処理
 // ========================================
 
+const raycaster = new THREE.Raycaster();
+const mouse = new THREE.Vector2();
 let lastPaintMouseX = null;
 let lastPaintMouseY = null;
 
@@ -2471,7 +2686,6 @@ renderer.domElement.addEventListener('mousedown', (event) => {
   lastPaintMouseX = mouse.x;
   lastPaintMouseY = mouse.y;
   
-  // 最初のクリック位置でペイント
   handlePaintAtPosition(mouse.x, mouse.y);
 });
 
@@ -2482,12 +2696,11 @@ renderer.domElement.addEventListener('mousemove', (event) => {
   mouse.x = ((event.clientX - rect.left) / rect.width) * 2 - 1;
   mouse.y = -((event.clientY - rect.top) / rect.height) * 2 + 1;
   
-  // パスに沿ってペイント
   const affectedIndices = findSplatsAlongMousePath(
     mouse.x, mouse.y,
     lastPaintMouseX, lastPaintMouseY,
     camera, filteredGs,
-    30 // ブラシ半径30px
+    30
   );
   
   if (affectedIndices.length > 0) {
@@ -2504,95 +2717,10 @@ renderer.domElement.addEventListener('mouseup', () => {
   lastPaintMouseY = null;
 });
 
-/**
- * ペイント処理を実行
- */
-function handlePaintAtPosition(mouseX, mouseY) {
-  const result = findNearestSplatWithRadius(mouseX, mouseY, camera, filteredGs, 30);
-  
-  if (result && result.indices.length > 0) {
-    applyAssignmentToIndices(result.indices, selectedTarget, paintModeEraser);
-  } else {
-    console.log('[Paint] No splats found under cursor');
-  }
-}
+console.log('[setupBoneAssignment] ✓ All helper functions and events initialized');
 
-// ========================================
-// 球体選択ボタン
-// ========================================
-
-const selectSphereBtn = document.getElementById('select-sphere-btn');
-
-if (selectSphereBtn) {
-  selectSphereBtn.addEventListener('click', () => {
-    if (!selectedTarget) {
-      alert('Please select a target bone or group first!');
-      return;
-    }
-    
-    selectionMode = 'sphere';
-    console.log('[Sphere Selection] Mode activated, radius:', selectionRadius, 'm');
-    console.log('[Sphere Selection] Click on a splat to select all nearby splats');
-    
-    const onSphereClick = (event) => {
-      const rect = renderer.domElement.getBoundingClientRect();
-      mouse.x = ((event.clientX - rect.left) / rect.width) * 2 - 1;
-      mouse.y = -((event.clientY - rect.top) / rect.height) * 2 + 1;
-      
-      // ⭐ 改善: 最も近いsplatを見つ���る
-      const nearestResult = findNearestSplat(mouse.x, mouse.y, camera, filteredGs, 100);
-      
-      if (!nearestResult) {
-        alert('No splat found near click. Please click closer to the object.');
-        renderer.domElement.removeEventListener('click', onSphereClick);
-        selectionMode = null;
-        return;
-      }
-      
-      const centerIdx = nearestResult.index;
-      
-      const centerX = filteredGs.centers0[centerIdx * 3 + 0];
-      const centerY = filteredGs.centers0[centerIdx * 3 + 1];
-      const centerZ = filteredGs.centers0[centerIdx * 3 + 2];
-      const center = new THREE.Vector3(centerX, centerY, centerZ);
-      
-      console.log('[Sphere Selection] Center splat:', centerIdx, 'at', center);
-      
-      const indicesInSphere = findSplatsInSphere(center, selectionRadius, filteredGs);
-      
-      if (indicesInSphere.length === 0) {
-        alert('No splats found in sphere. Try increasing the radius.');
-        renderer.domElement.removeEventListener('click', onSphereClick);
-        selectionMode = null;
-        return;
-      }
-      
-      applyAssignmentToIndices(indicesInSphere, selectedTarget, false);
-      
-      assignmentData.history.push({
-        action: 'sphere_select',
-        indices: [...indicesInSphere],
-        target: selectedTarget
-      });
-      
-      console.log('[Sphere Selection] Completed:', indicesInSphere.length, 'splats assigned');
+      ////helper関数挿入 終了
       
-      renderer.domElement.removeEventListener('click', onSphereClick);
-      selectionMode = null;
-    };
-    
-    renderer.domElement.addEventListener('click', onSphereClick);
-  });
-}
-
-console.log('[setupBoneAssignment] ✓ Improved splat selection system initialized');
-console.log('[setupBoneAssignment] Features:');
-console.log('  - Finds nearest splat within 100px');
-console.log('  - Paint mode with drag support');
-console.log('  - Smooth brush strokes with interpolation');
-console.log('  - Sphere selection with improved center detection');
-
-      ////helper関数挿入
       // ========================================
       // Statistics Update
       // ========================================
@@ -2667,78 +2795,6 @@ console.log('  - Sphere selection with improved center detection');
  * @param {number} maxScreenDistance - 最大許容画面距離（ピクセル、デフォルト50px）
  * @returns {Object|null} { index, screenDistance, worldDistance } or null
  */
-function findNearestSplat(mouseX, mouseY, camera, filteredGs, maxScreenDistance = 50) {
-  console.log('[findNearestSplat] Searching for splat near mouse:', { mouseX, mouseY });
-  
-  // スクリーン座標をピクセル座標に変換
-  const canvas = renderer.domElement;
-  const mousePixelX = (mouseX + 1) * canvas.width / 2;
-  const mousePixelY = (-mouseY + 1) * canvas.height / 2;
-  
-  let nearestSplatIndex = -1;
-  let nearestScreenDist = Infinity;
-  let nearestWorldDist = Infinity;
-  
-  // カメラ位置
-  const cameraPos = camera.position;
-  
-  // 一時的なVector3オブジェクト（パフォーマンス最適化）
-  const worldPos = new THREE.Vector3();
-  const screenPos = new THREE.Vector3();
-  
-  // 全てのsplatをチェック
-  for (let i = 0; i < filteredGs.splatCount; i++) {
-    // Splatのワールド座標を取得
-    worldPos.x = filteredGs.centers0[i * 3 + 0];
-    worldPos.y = filteredGs.centers0[i * 3 + 1];
-    worldPos.z = filteredGs.centers0[i * 3 + 2];
-    
-    // ワールド座標 → スクリーン座標に変換
-    screenPos.copy(worldPos);
-    screenPos.project(camera);
-    
-    // カメラの背後にあるsplatは除外
-    if (screenPos.z > 1) continue;
-    
-    // 正規化座標 → ピクセル座標
-    const screenPixelX = (screenPos.x + 1) * canvas.width / 2;
-    const screenPixelY = (-screenPos.y + 1) * canvas.height / 2;
-    
-    // マウスとの2D距離（画面上）
-    const dx = screenPixelX - mousePixelX;
-    const dy = screenPixelY - mousePixelY;
-    const screenDist = Math.sqrt(dx * dx + dy * dy);
-    
-    // 最大許容距離以内で、最も近いものを記録
-    if (screenDist < maxScreenDistance && screenDist < nearestScreenDist) {
-      nearestScreenDist = screenDist;
-      nearestSplatIndex = i;
-      
-      // ワールド空間での距離も計算
-      const worldDx = worldPos.x - cameraPos.x;
-      const worldDy = worldPos.y - cameraPos.y;
-      const worldDz = worldPos.z - cameraPos.z;
-      nearestWorldDist = Math.sqrt(worldDx * worldDx + worldDy * worldDy + worldDz * worldDz);
-    }
-  }
-  
-  if (nearestSplatIndex >= 0) {
-    console.log('[findNearestSplat] ✓ Found nearest splat:', {
-      index: nearestSplatIndex,
-      screenDistance: nearestScreenDist.toFixed(1) + 'px',
-      worldDistance: nearestWorldDist.toFixed(3) + 'm'
-    });
-    
-    return {
-      index: nearestSplatIndex,
-      screenDistance: nearestScreenDist,
-      worldDistance: nearestWorldDist
-    };
-  }
-  
-  console.log('[findNearestSplat] ✗ No splat found within', maxScreenDistance, 'px');
-  return null;
-}
 
 /**
  * 球体範囲内の全Splatを検索
@@ -2759,25 +2815,6 @@ function findNearestSplat(mouseX, mouseY, camera, filteredGs, maxScreenDistance
  * @param {number} brushRadius - ブラシ半径（ピクセル、デフォルト30px）
  * @returns {Array<number>} 影響を受けたSplatインデックス
  */
-function findSplatsAlongMousePath(mouseX, mouseY, lastMouseX, lastMouseY, camera, filteredGs, brushRadius = 30) {
-  const affectedSplats = new Set();
-  
-  // パスを補間（滑らかなストロークのため）
-  const steps = 5;
-  for (let step = 0; step <= steps; step++) {
-    const t = step / steps;
-    const interpX = lastMouseX + (mouseX - lastMouseX) * t;
-    const interpY = lastMouseY + (mouseY - lastMouseY) * t;
-    
-    // この位置の周辺Splatを検索
-    const result = findNearestSplatWithRadius(interpX, interpY, camera, filteredGs, brushRadius);
-    if (result && result.indices) {
-      result.indices.forEach(idx => affectedSplats.add(idx));
-    }
-  }
-  
-  return Array.from(affectedSplats);
-}
 
 /**
  * ブラシ半径内の全Splatを返す
@@ -2788,39 +2825,6 @@ function findSplatsAlongMousePath(mouseX, mouseY, lastMouseX, lastMouseY, camera
  * @param {number} brushRadius - ブラシ半径（ピクセル）
  * @returns {Object|null} { indices: Array<number> } or null
  */
-function findNearestSplatWithRadius(mouseX, mouseY, camera, filteredGs, brushRadius) {
-  const canvas = renderer.domElement;
-  const mousePixelX = (mouseX + 1) * canvas.width / 2;
-  const mousePixelY = (-mouseY + 1) * canvas.height / 2;
-  
-  const affectedIndices = [];
-  const worldPos = new THREE.Vector3();
-  const screenPos = new THREE.Vector3();
-  
-  for (let i = 0; i < filteredGs.splatCount; i++) {
-    worldPos.x = filteredGs.centers0[i * 3 + 0];
-    worldPos.y = filteredGs.centers0[i * 3 + 1];
-    worldPos.z = filteredGs.centers0[i * 3 + 2];
-    
-    screenPos.copy(worldPos);
-    screenPos.project(camera);
-    
-    if (screenPos.z > 1) continue;
-    
-    const screenPixelX = (screenPos.x + 1) * canvas.width / 2;
-    const screenPixelY = (-screenPos.y + 1) * canvas.height / 2;
-    
-    const dx = screenPixelX - mousePixelX;
-    const dy = screenPixelY - mousePixelY;
-    const screenDist = Math.sqrt(dx * dx + dy * dy);
-    
-    if (screenDist < brushRadius) {
-      affectedIndices.push(i);
-    }
-  }
-  
-  return affectedIndices.length > 0 ? { indices: affectedIndices } : null;
-}
 
 // ========================================
 // マウスクリック/ドラッグイベント処理の改善例
@@ -2877,83 +2881,12 @@ renderer.domElement.addEventListener('mouseup', () => {
   lastPaintMouseY = null;
 });
 
-/**
- * ペイント処理を実行
- */
-function handlePaintAtPosition(mouseX, mouseY) {
-  const result = findNearestSplatWithRadius(mouseX, mouseY, camera, filteredGs, 30);
-  
-  if (result && result.indices.length > 0) {
-    applyAssignmentToIndices(result.indices, selectedTarget, paintModeEraser);
-  } else {
-    console.log('[Paint] No splats found under cursor');
-  }
-}
-
-/**
- * Splatに割り当てを適用
- */
-function applyAssignmentToIndices(indices, target, isEraser) {
-  if (isEraser) {
-    // 消しゴムモード: 割り当て解除
-    indices.forEach(idx => {
-      if (assignmentData.splatBoneIndices[idx] >= 0) {
-        const oldBoneName = getBoneNameFromIndex(assignmentData.splatBoneIndices[idx]);
-        if (assignmentData.boneAssignments[oldBoneName]) {
-          const arrayIdx = assignmentData.boneAssignments[oldBoneName].indexOf(idx);
-          if (arrayIdx >= 0) {
-            assignmentData.boneAssignments[oldBoneName].splice(arrayIdx, 1);
-          }
-        }
-        assignmentData.splatBoneIndices[idx] = -1;
-        
-        // 色を元に戻す
-        filteredGs.colors[idx * 4 + 0] = 255;
-        filteredGs.colors[idx * 4 + 1] = 255;
-        filteredGs.colors[idx * 4 + 2] = 255;
-      }
-    });
-    
-    console.log('[Paint] Erased', indices.length, 'splats');
-  } else {
-    // 通常モード: 割り当て
-    const targetColor = getTargetColor(target);
-    const boneIndices = getTargetBoneIndices(target);
-    
-    indices.forEach(idx => {
-      assignmentData.splatBoneIndices[idx] = boneIndices[0]; // 最初のボーン
-      
-      // 色を適用
-      filteredGs.colors[idx * 4 + 0] = targetColor[0];
-      filteredGs.colors[idx * 4 + 1] = targetColor[1];
-      filteredGs.colors[idx * 4 + 2] = targetColor[2];
-      
-      // 記録
-      boneIndices.forEach(boneIdx => {
-        const boneName = getBoneNameFromIndex(boneIdx);
-        if (!assignmentData.boneAssignments[boneName]) {
-          assignmentData.boneAssignments[boneName] = [];
-        }
-        if (!assignmentData.boneAssignments[boneName].includes(idx)) {
-          assignmentData.boneAssignments[boneName].push(idx);
-        }
-      });
-    });
-    
-    console.log('[Paint] Painted', indices.length, 'splats with', target);
-  }
-  
-  // スプラットの色を更新
-  filteredGs.splatMesh.updateDataTexturesFromBaseData(0, filteredGs.splatCount - 1);
-  updateStats();
-}
 
 // ========================================
 // 球体選択モード（元のコード互換）
 // ========================================
 
 
-
 if (selectSphereBtn) {
   selectSphereBtn.addEventListener('click', () => {
     if (!selectedTarget) {