add flip_u param

Author: hx2A

py5-resources/py5-module/src/py5/shape_conversion.py

@@ -470,6 +470,8 @@ def trimesh_trimesh_to_py5shape_converter(sketch, obj: Trimesh, **kwargs):
         if isinstance(obj.visual, TextureVisuals):
             use_texture = True
             uv = obj.visual.uv[obj_faces_ravel]
+            if kwargs.get("flip_u", False):
+                uv[:, 0] = 1 - uv[:, 0]
             if kwargs.get("flip_v", False):
                 uv[:, 1] = 1 - uv[:, 1]
             vertices = np.hstack([vertices, uv])