# fix

src/mesh_particle/extend.ts

@@ -29,8 +29,8 @@ import { ETempNodeAnimationDataKey, GLTFTool } from "../gltf/base";
 import { LoadExtraMaterial } from "../render3d/extends/material";
 import { MeshParticleSystemGeometry } from "./mesh_particle_system_geomtry";
 import { Scene } from "../render3d/scene";
-import { ExtensionTools } from "interface";
-import { StandardMaterialData, StandardMaterialMesh } from "material/standardmaterial";
+import { ExtensionTools } from "../interface/index";
+import { StandardMaterialData, StandardMaterialMesh } from "../material/standardmaterial";
 
 // import { ModelObj } from "../model_obj";