Update export to .ply

utils/app_utils.py

@@ -163,7 +163,8 @@ def export_to_obj(reconstruction, ply_out_path):
     f_dc = reconstruction["features_dc"].detach().transpose(1, 2).flatten(start_dim=1).contiguous().cpu().numpy()
     f_rest = reconstruction["features_rest"].detach().transpose(1, 2).flatten(start_dim=1).contiguous().cpu().numpy()
     opacities = reconstruction["opacity"].detach().cpu().numpy()
-    scale = reconstruction["scaling"].detach().cpu().numpy()
+    # enlarge Gaussians - otherwise transforming them to .ply results in artefacts
+    scale = reconstruction["scaling"].detach().cpu().numpy() + np.abs(reconstruction["scaling"].detach().cpu().numpy() * 0.1)
     rotation = reconstruction["rotation"].detach().cpu().numpy()
 
     dtype_full = [(attribute, 'f4') for attribute in construct_list_of_attributes()]