ply2glb path fix

launch.py

@@ -114,7 +114,7 @@ def preprocess_imgs(tmp_dir, input_img, idx=None):
 
 
 def ply_to_glb(ply_path):
-    script_path = "../utils/ply2glb.py"
+    script_path = f"{code_dir}/ply2glb.py"
     result = subprocess.run(
         ["python", script_path, "--", ply_path],
         capture_output=True,