点击空白隐藏放置区域

src/babylonjs/AppModel.ts

@@ -152,8 +152,31 @@ export class AppModel extends Monobehiver {
     /**
      * 克隆模型材质，避免多个模型共享同名材质
      * @param meshes 网格数组
-     * @param modelName 模型名称
+     * @param modelId 模型ID
      */
+    private cloneMaterials(meshes: AbstractMesh[], modelId: string): void {
+        const scene = this.mainApp.appScene.object;
+        const clonedMaterials = new Map<string, any>();
+
+        meshes.forEach(mesh => {
+            if (mesh.material) {
+                const originalMaterial = mesh.material;
+                const originalName = originalMaterial.name;
+
+                // 如果该材质还没有被克隆过，则克隆它
+                if (!clonedMaterials.has(originalName)) {
+                    const clonedMaterial = originalMaterial.clone(`${originalName}_${modelId}`);
+                    clonedMaterials.set(originalName, clonedMaterial);
+                }
+
+                // 应用克隆的材质
+                mesh.material = clonedMaterials.get(originalName);
+            }
+        });
+
+        console.log(`已为模型 ${modelId} 克隆 ${clonedMaterials.size} 个材质`);
+    }
+
     /** 为网格设置阴影（投射和接收） */
     private createModelRoot(modelId: string, meshes: AbstractMesh[]): AbstractMesh[] {
         const scene = this.mainApp.appScene.object;
@@ -254,6 +277,9 @@ export class AppModel extends Monobehiver {
         });
 
         if (result.success && result.meshes) {
+            // 克隆材质，确保每个模型有独立的材质
+            this.cloneMaterials(result.meshes, modelName);
+
             result.meshes = this.createModelRoot(modelName, result.meshes);
             this.modelDic.Set(modelName, result.meshes);
 
@@ -304,6 +330,9 @@ export class AppModel extends Monobehiver {
             });
 
             if (result.success && result.meshes) {
+                // 克隆材质，确保每个模型有独立的材质
+                this.cloneMaterials(result.meshes, modelId);
+
                 result.meshes = this.createModelRoot(modelId, result.meshes);
                 this.modelDic.Set(modelId, result.meshes);