Use shared models path

scripts/tools.py

@@ -21,8 +21,13 @@ from collections import OrderedDict
 from PIL import Image
 
 model_cache = OrderedDict()
-sam_model_dir = os.path.join(
-    extensions_dir, "PBRemTools/models/")
+models_path = shared.models_path
+sams_dir = os.path.join(models_path, "sam")
+if os.path.exists(sams_dir):
+    sam_model_dir = sams_dir
+else:
+    sam_model_dir = os.path.join(
+        extensions_dir, "PBRemTools/models/")
 model_list = [f for f in os.listdir(sam_model_dir) if os.path.isfile(
     os.path.join(sam_model_dir, f)) and f.split('.')[-1] != 'txt']