Log root frame identity (for now)

Author: MichaelGrupp

crates/store/re_data_loader/src/loader_urdf.rs

@@ -6,6 +6,7 @@ use std::{
 use ahash::{HashMap, HashMapExt as _, HashSet, HashSetExt as _};
 use anyhow::{Context as _, bail};
 use itertools::Itertools as _;
+use re_log::warn;
 use urdf_rs::{Geometry, Joint, Link, Material, Robot, Vec3, Vec4};
 
 use re_chunk::{ChunkBuilder, ChunkId, EntityPath, RowId, TimePoint};
@@ -290,6 +291,14 @@ fn log_robot(
         timepoint,
         &CoordinateFrame::update_fields().with_frame_id(urdf_tree.root.name.clone()),
     )?;
+    // TODO: Do we always need to do that?
+    send_archetype(
+        tx,
+        store_id,
+        entity_path.clone(),
+        timepoint,
+        &Transform3D::update_fields().with_child_frame(urdf_tree.root.name.clone()),
+    )?;
 
     walk_tree(
         &urdf_tree,