From 8e206d4636dbcfd5d70fbf83757bd2069a50b72e Mon Sep 17 00:00:00 2001
From: Andrew White <andrewh@cdw.com>
Date: Mon, 27 Jul 2026 20:47:15 -0500
Subject: [PATCH] fix: invalid split leaves selection variable undefined

---
 dust3r/datasets/blendedmvs.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dust3r/datasets/blendedmvs.py b/dust3r/datasets/blendedmvs.py
index 93e68c2..344bfe2 100644
--- a/dust3r/datasets/blendedmvs.py
+++ b/dust3r/datasets/blendedmvs.py
@@ -26,12 +26,14 @@ def _load_data(self, split):
         pairs = np.load(osp.join(self.ROOT, 'blendedmvs_pairs.npy'))
         if split is None:
             selection = slice(None)
-        if split == 'train':
+        elif split == 'train':
             # select 90% of all scenes
             selection = (pairs['seq_low'] % 10) > 0
-        if split == 'val':
+        elif split == 'val':
             # select 10% of all scenes
             selection = (pairs['seq_low'] % 10) == 0
+        else:
+            raise ValueError(f'bad {split=}')
         self.pairs = pairs[selection]
 
         # list of all scenes