only render hand gizmos if they are actively tracked

Signed-off-by: Schmarni <marnistromer@gmail.com>

crates/bevy_xr_utils/src/hand_gizmos.rs

@@ -1,6 +1,7 @@
 use bevy::color::palettes::css;
 use bevy::{prelude::*, transform::TransformSystem};
 use bevy_mod_xr::hands::{HandBone, HandBoneRadius};
+use bevy_mod_xr::spaces::XrSpaceLocationFlags;
 pub struct HandGizmosPlugin;
 impl Plugin for HandGizmosPlugin {
     fn build(&self, app: &mut App) {
@@ -12,9 +13,17 @@ impl Plugin for HandGizmosPlugin {
 }
 fn draw_hand_gizmos(
     mut gizmos: Gizmos,
-    query: Query<(&GlobalTransform, &HandBone, &HandBoneRadius)>,
+    query: Query<(
+        &GlobalTransform,
+        &HandBone,
+        &HandBoneRadius,
+        &XrSpaceLocationFlags,
+    )>,
 ) {
-    for (transform, bone, radius) in &query {
+    for (transform, bone, radius, flags) in &query {
+        if (!flags.position_tracked) || (!flags.rotation_tracked) {
+            continue;
+        }
         let pose = transform.compute_transform();
         let pose = Isometry3d {
             translation: pose.translation.into(),