Fix GPU SIFT flag names for COLMAP >=3.13

COLMAP's #3465 (released in 3.13.0) renamed the use_gpu/gpu_index
options from SiftExtraction/SiftMatching to FeatureExtraction/
FeatureMatching, without keeping the old names as aliases. Discovered
while wiring in the ROCm colmap fork's hip-integration branch (COLMAP
4.2.0.dev0), which would otherwise silently ignore --gpu since the
old flag names error out under newer COLMAP. Version-gated using the
same colmap_version check already used elsewhere in this file.

nerfstudio/process_data/colmap_utils.py

@@ -115,6 +115,12 @@ def run_colmap(
     """
 
     colmap_version = get_colmap_version(colmap_cmd)
+    # COLMAP's #3465 (released in 3.13.0) renamed the use_gpu/gpu_index options from
+    # SiftExtraction/SiftMatching to FeatureExtraction/FeatureMatching as part of
+    # generalizing feature extraction beyond SIFT; the old names were dropped, not kept
+    # as aliases, so this must be version-gated rather than always using one or the other.
+    use_gpu_extraction_prefix = "FeatureExtraction" if colmap_version >= Version("3.13") else "SiftExtraction"
+    use_gpu_matching_prefix = "FeatureMatching" if colmap_version >= Version("3.13") else "SiftMatching"
 
     colmap_database_path = colmap_dir / "database.db"
     colmap_database_path.unlink(missing_ok=True)
@@ -126,7 +132,7 @@ def run_colmap(
         f"--image_path {image_dir}",
         "--ImageReader.single_camera 1",
         f"--ImageReader.camera_model {camera_model.value}",
-        f"--SiftExtraction.use_gpu {int(gpu)}",
+        f"--{use_gpu_extraction_prefix}.use_gpu {int(gpu)}",
     ]
     if camera_mask_path is not None:
         feature_extractor_cmd.append(f"--ImageReader.camera_mask_path {camera_mask_path}")
@@ -140,7 +146,7 @@ def run_colmap(
     feature_matcher_cmd = [
         f"{colmap_cmd} {matching_method}_matcher",
         f"--database_path {colmap_dir / 'database.db'}",
-        f"--SiftMatching.use_gpu {int(gpu)}",
+        f"--{use_gpu_matching_prefix}.use_gpu {int(gpu)}",
     ]
     if matching_method == "vocab_tree":
         vocab_tree_filename = get_vocab_tree()