glTF: Draco: Directly look at path specified by environment variable

io_scene_gltf2/__init__.py

@@ -4,7 +4,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (3, 3, 9),
+    "version": (3, 3, 10),
     'blender': (3, 3, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',

io_scene_gltf2/io/com/gltf2_io_draco_compression_extension.py

@@ -27,7 +27,7 @@ def dll_path() -> Path:
             'darwin': blender_root.parent / 'Resources' / python_lib / python_version / 'site-packages'
         }.get(sys.platform)
     else:
-        path = Path(path)
+        return Path(path)
 
     library_name = {
         'win32': '{}.dll'.format(lib_name),
@@ -46,12 +46,11 @@ def dll_exists(quiet=False) -> bool:
     Checks whether the DLL path exists.
     :return: True if the DLL exists.
     """
-    exists = dll_path().exists()
+    path = dll_path()
+    exists = path.exists() and path.is_file()
     if quiet is False:
-        print("'{}' ".format(dll_path().absolute()) + ("exists, draco mesh compression is available" if exists else
-                                                       "{} {} {}".format(
-                                                           "does not exist, draco mesh compression not available,",
-                                                           "please add it or create environment variable BLENDER_EXTERN_DRACO_LIBRARY_PATH",
-                                                           "pointing to the folder"
-                                                      )))
+        if exists:
+            print_console('INFO', 'Draco mesh compression is available, use library at %s' % dll_path().absolute())
+        else:
+            print_console('ERROR', 'Draco mesh compression is not available because library could not be found at %s' % dll_path().absolute())
     return exists