diff --git a/crates/re_space_view_spatial/src/visualizers/arrows2d.rs b/crates/re_space_view_spatial/src/visualizers/arrows2d.rs
index a92603460a85a..4f5792346a3ba 100644
--- a/crates/re_space_view_spatial/src/visualizers/arrows2d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/arrows2d.rs
@@ -225,8 +225,7 @@ impl VisualizerSystem for Arrows2DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let vectors = match results.get_dense::<Vector2D>(resolver) {
-                    Some(Ok(vectors)) => vectors,
-                    Some(err @ Err(_)) => err?,
+                    Some(vectors) => vectors?,
                     _ => return Ok(()),
                 };
 
diff --git a/crates/re_space_view_spatial/src/visualizers/arrows3d.rs b/crates/re_space_view_spatial/src/visualizers/arrows3d.rs
index 4c811226cfd2d..e5e61d400514d 100644
--- a/crates/re_space_view_spatial/src/visualizers/arrows3d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/arrows3d.rs
@@ -228,8 +228,7 @@ impl VisualizerSystem for Arrows3DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let vectors = match results.get_dense::<Vector3D>(resolver) {
-                    Some(Ok(vectors)) => vectors,
-                    Some(err @ Err(_)) => err?,
+                    Some(vectors) => vectors?,
                     _ => return Ok(()),
                 };
 
diff --git a/crates/re_space_view_spatial/src/visualizers/boxes2d.rs b/crates/re_space_view_spatial/src/visualizers/boxes2d.rs
index 0af5c69c51693..a22b9ed8ebf83 100644
--- a/crates/re_space_view_spatial/src/visualizers/boxes2d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/boxes2d.rs
@@ -221,8 +221,7 @@ impl VisualizerSystem for Boxes2DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let half_sizes = match results.get_dense::<HalfSizes2D>(resolver) {
-                    Some(Ok(vectors)) => vectors,
-                    Some(err @ Err(_)) => err?,
+                    Some(vectors) => vectors?,
                     _ => return Ok(()),
                 };
 
diff --git a/crates/re_space_view_spatial/src/visualizers/boxes3d.rs b/crates/re_space_view_spatial/src/visualizers/boxes3d.rs
index e9f441c7eefe4..9df41ce522073 100644
--- a/crates/re_space_view_spatial/src/visualizers/boxes3d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/boxes3d.rs
@@ -211,8 +211,7 @@ impl VisualizerSystem for Boxes3DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let half_sizes = match results.get_dense::<HalfSizes3D>(resolver) {
-                    Some(Ok(vectors)) => vectors,
-                    Some(err @ Err(_)) => err?,
+                    Some(vectors) => vectors?,
                     _ => return Ok(()),
                 };
 
diff --git a/crates/re_space_view_spatial/src/visualizers/lines2d.rs b/crates/re_space_view_spatial/src/visualizers/lines2d.rs
index 539db0f26aa94..bca1670ef291c 100644
--- a/crates/re_space_view_spatial/src/visualizers/lines2d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/lines2d.rs
@@ -210,8 +210,7 @@ impl VisualizerSystem for Lines2DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let strips = match results.get_dense::<LineStrip2D>(resolver) {
-                    Some(Ok(strips)) => strips,
-                    Some(err @ Err(_)) => err?,
+                    Some(strips) => strips?,
                     _ => return Ok(()),
                 };
 
diff --git a/crates/re_space_view_spatial/src/visualizers/lines3d.rs b/crates/re_space_view_spatial/src/visualizers/lines3d.rs
index ec633399584e9..442c38dd97247 100644
--- a/crates/re_space_view_spatial/src/visualizers/lines3d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/lines3d.rs
@@ -219,8 +219,7 @@ impl VisualizerSystem for Lines3DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let strips = match results.get_dense::<LineStrip3D>(resolver) {
-                    Some(Ok(strips)) => strips,
-                    Some(err @ Err(_)) => err?,
+                    Some(strips) => strips?,
                     _ => return Ok(()),
                 };
 
diff --git a/crates/re_space_view_spatial/src/visualizers/mod.rs b/crates/re_space_view_spatial/src/visualizers/mod.rs
index 5ad319d268660..98e205ec4ab7e 100644
--- a/crates/re_space_view_spatial/src/visualizers/mod.rs
+++ b/crates/re_space_view_spatial/src/visualizers/mod.rs
@@ -130,10 +130,7 @@ pub fn process_color_slice<'a>(
             }
         }
     } else {
-        let colors = colors
-            .iter()
-            .chain(std::iter::repeat(colors.last().unwrap()))
-            .take(num_instances);
+        let colors = entity_iterator::clamped(colors, num_instances);
         match annotation_infos {
             ResolvedAnnotationInfos::Same(_count, annotation_info) => {
                 re_tracing::profile_scope!("many-colors, same annotation");
@@ -166,11 +163,8 @@ pub fn process_radius_slice(
     if radii.is_empty() {
         vec![re_renderer::Size::AUTO; num_instances]
     } else {
-        radii
-            .iter()
-            .chain(std::iter::repeat(radii.last().unwrap()))
+        entity_iterator::clamped(radii, num_instances)
             .map(|radius| process_radius(entity_path, *radius))
-            .take(num_instances)
             .collect()
     }
 }
@@ -218,10 +212,7 @@ fn process_annotation_and_keypoint_slices(
         );
     };
 
-    let class_ids = class_ids
-        .iter()
-        .chain(std::iter::repeat(class_ids.last().unwrap()))
-        .take(num_instances);
+    let class_ids = entity_iterator::clamped(class_ids, num_instances);
 
     if keypoint_ids.is_empty() {
         let annotation_info = class_ids
@@ -236,10 +227,7 @@ fn process_annotation_and_keypoint_slices(
             Default::default(),
         )
     } else {
-        let keypoint_ids = keypoint_ids
-            .iter()
-            .chain(std::iter::repeat(keypoint_ids.last().unwrap()))
-            .take(num_instances);
+        let keypoint_ids = entity_iterator::clamped(keypoint_ids, num_instances);
         let annotation_info = itertools::izip!(positions, keypoint_ids, class_ids)
             .map(|(position, keypoint_id, &class_id)| {
                 let class_description = annotations.resolved_class_description(Some(class_id));
diff --git a/crates/re_space_view_spatial/src/visualizers/points2d.rs b/crates/re_space_view_spatial/src/visualizers/points2d.rs
index 2f1923e4189c0..9fe4f1a690397 100644
--- a/crates/re_space_view_spatial/src/visualizers/points2d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/points2d.rs
@@ -229,8 +229,7 @@ impl VisualizerSystem for Points2DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let positions = match results.get_dense::<Position2D>(resolver) {
-                    Some(Ok(positions)) => positions,
-                    Some(err @ Err(_)) => err?,
+                    Some(positions) => positions?,
                     _ => return Ok(()),
                 };
 
diff --git a/crates/re_space_view_spatial/src/visualizers/points3d.rs b/crates/re_space_view_spatial/src/visualizers/points3d.rs
index fa40239a27812..a0b62e66b1339 100644
--- a/crates/re_space_view_spatial/src/visualizers/points3d.rs
+++ b/crates/re_space_view_spatial/src/visualizers/points3d.rs
@@ -220,8 +220,7 @@ impl VisualizerSystem for Points3DVisualizer {
                 let resolver = ctx.recording().resolver();
 
                 let positions = match results.get_dense::<Position3D>(resolver) {
-                    Some(Ok(positions)) => positions,
-                    Some(err @ Err(_)) => err?,
+                    Some(positions) => positions?,
                     _ => return Ok(()),
                 };