Warn if no resolution provided to Pinhole (#3923)

### What
Resolves:
 - #3852

Removes the setting of a default resolution if not provided and
generates warnings/exceptions as appropriate.

Also uses the TensorData to derived a resolution if none was provided
when rendering the pinhole frustum.

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested [demo.rerun.io](https://demo.rerun.io/pr/3923) (if
applicable)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG

- [PR Build Summary](https://build.rerun.io/pr/3923)
- [Docs
preview](https://rerun.io/preview/48f02eadacd8ac83ad9e5b19dbb8ad44ef840144/docs)
<!--DOCS-PREVIEW-->
- [Examples
preview](https://rerun.io/preview/48f02eadacd8ac83ad9e5b19dbb8ad44ef840144/examples)
<!--EXAMPLES-PREVIEW-->
- [Recent benchmark results](https://ref.rerun.io/dev/bench/)
- [Wasm size tracking](https://ref.rerun.io/dev/sizes/)

crates/re_space_view_spatial/src/lib.rs

@@ -17,6 +17,7 @@ mod ui;
 mod ui_2d;
 mod ui_3d;
 
+use re_types::components::{Resolution, TensorData};
 pub use space_view_2d::SpatialSpaceView2D;
 pub use space_view_3d::SpatialSpaceView3D;
 
@@ -33,6 +34,20 @@ mod view_kind {
     }
 }
 
+fn resolution_from_tensor(
+    store: &re_arrow_store::DataStore,
+    query: &re_arrow_store::LatestAtQuery,
+    entity_path: &re_log_types::EntityPath,
+) -> Option<Resolution> {
+    store
+        .query_latest_component::<TensorData>(entity_path, query)
+        .and_then(|tensor| {
+            tensor
+                .image_height_width_channels()
+                .map(|hwc| Resolution([hwc[1] as f32, hwc[0] as f32].into()))
+        })
+}
+
 /// Utility for querying a pinhole archetype instance.
 ///
 /// TODO(andreas): It should be possible to convert [`re_query::ArchetypeView`] to its corresponding Archetype for situations like this.
@@ -48,7 +63,8 @@ fn query_pinhole(
             image_from_camera: image_from_camera.value,
             resolution: store
                 .query_latest_component(entity_path, query)
-                .map(|c| c.value),
+                .map(|c| c.value)
+                .or_else(|| resolution_from_tensor(store, query, entity_path)),
             camera_xyz: store
                 .query_latest_component(entity_path, query)
                 .map(|c| c.value),

rerun_py/rerun_sdk/rerun/archetypes/pinhole_ext.py

@@ -88,18 +88,27 @@ def __init__(
 
             # TODO(andreas): Use a union type for the Pinhole component instead ~Zof converting to a matrix here
             if image_from_camera is None:
-                # Resolution is needed for various fallbacks/error cases below.
-                if resolution is None:
-                    resolution = [1.0, 1.0]
-                resolution = Vec2D(resolution)
-                width = cast(float, resolution.xy[0])
-                height = cast(float, resolution.xy[1])
+                if resolution is not None:
+                    res_vec = Vec2D(resolution)
+                    width = cast(float, res_vec.xy[0])
+                    height = cast(float, res_vec.xy[1])
+                else:
+                    width = None
+                    height = None
 
                 if focal_length is None:
-                    _send_warning_or_raise("either image_from_camera or focal_length must be set", 1)
-                    focal_length = (width * height) ** 0.5  # a reasonable default
+                    if height is None or width is None:
+                        raise ValueError("Either image_from_camera or focal_length must be set")
+                    else:
+                        _send_warning_or_raise("Either image_from_camera or focal_length must be set", 1)
+                        focal_length = (width * height) ** 0.5  # a reasonable best-effort default
+
                 if principal_point is None:
-                    principal_point = [width / 2, height / 2]
+                    if height is not None and width is not None:
+                        principal_point = [width / 2, height / 2]
+                    else:
+                        raise ValueError("Must provide one of principal_point, resolution, or width/height")
+
                 if type(focal_length) in (int, float):
                     fl_x = focal_length
                     fl_y = focal_length
@@ -109,17 +118,13 @@ def __init__(
                         fl_x = focal_length[0]  # type: ignore[index]
                         fl_y = focal_length[1]  # type: ignore[index]
                     except Exception:
-                        _send_warning_or_raise("Expected focal_length to be one or two floats", 1)
-                        fl_x = width / 2
-                        fl_y = fl_x
+                        raise ValueError("Expected focal_length to be one or two floats")
 
                 try:
                     u_cen = principal_point[0]  # type: ignore[index]
                     v_cen = principal_point[1]  # type: ignore[index]
                 except Exception:
-                    _send_warning_or_raise("Expected principal_point to be one or two floats", 1)
-                    u_cen = width / 2
-                    v_cen = height / 2
+                    raise ValueError("Expected principal_point to be one or two floats")
 
                 image_from_camera = [[fl_x, 0, u_cen], [0, fl_y, v_cen], [0, 0, 1]]  # type: ignore[assignment]
             else:

rerun_py/tests/unit/test_expected_warnings.py

@@ -43,6 +43,10 @@ def test_expected_warnings() -> None:
                 rr.log("test_transform", rr.TranslationAndMat3x3(translation=[1, 0, 0])),  # type: ignore[arg-type]
                 "Expected an object implementing rerun.AsComponents or an iterable of rerun.ComponentBatchLike, but got",
             ),
+            (
+                rr.log("world/image", rr.Pinhole(focal_length=3)),
+                "Must provide one of principal_point, resolution, or width/height)",
+            ),
         ]
 
         assert len(warnings) == len(expected_warnings)