From 497cc2e9fdd3cf2d56454db7f6986fc2f5eaddcd Mon Sep 17 00:00:00 2001
From: jdsr <107491647+jdsr1145@users.noreply.github.com>
Date: Mon, 19 Jan 2026 16:51:01 -0800
Subject: [PATCH] Change data source for next_eval to eval dataloader

Implementation of issue #3731
---
 nerfstudio/data/datamanagers/parallel_datamanager.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nerfstudio/data/datamanagers/parallel_datamanager.py b/nerfstudio/data/datamanagers/parallel_datamanager.py
index e1e1f6ef52..5dda767a37 100644
--- a/nerfstudio/data/datamanagers/parallel_datamanager.py
+++ b/nerfstudio/data/datamanagers/parallel_datamanager.py
@@ -248,7 +248,7 @@ def next_train(self, step: int) -> Tuple[RayBundle, Dict]:
     def next_eval(self, step: int) -> Tuple[RayBundle, Dict]:
         """Returns the next batch of data from the eval dataloader."""
         self.eval_count += 1
-        ray_bundle, batch = next(self.iter_train_raybundles)[0]
+        ray_bundle, batch = next(self.iter_eval_raybundles)[0]
         ray_bundle = ray_bundle.to(self.device)
         batch = get_dict_to_torch(batch, self.device)
         return ray_bundle, batch