diff --git a/src/visibility.rs b/src/visibility.rs
index 0f360d3..c6a96db 100644
--- a/src/visibility.rs
+++ b/src/visibility.rs
@@ -52,7 +52,7 @@ impl Viewshed {
         &mut self,
         viewer_entity: &Entity,
         visible_entities: &mut VisibleEntities,
-        start: &GlobalTransform,
+        start: &Vec2,
         rapier_context: &RapierContext,
         visible_query: &Query<(&Visible, &Collider, &GlobalTransform)>,
         events: &mut EventWriter<VisibilityChanged>,
@@ -62,7 +62,7 @@ impl Viewshed {
         let mut boxes = vec![];
         let shape = Collider::cuboid(self.range as f32, self.range as f32);
         rapier_context.intersections_with_shape(
-            start.translation().truncate(),
+            *start,
             0.,
             &shape,
             QueryFilter::new()
@@ -89,8 +89,8 @@ impl Viewshed {
         let shape = Collider::cuboid(0.49, 0.49);
         let mut new_visible_entities = HashSet::new();
         let size = (
-            (start.translation().x.abs() + self.range as f32) as u32,
-            (start.translation().y.abs() + self.range as f32) as u32,
+            (start.x.abs() + self.range as f32) as u32,
+            (start.y.abs() + self.range as f32) as u32,
         );
         let visibility_grid = VisibilityGrid(
             size,
@@ -148,11 +148,10 @@ impl Viewshed {
                     for e in &coord_entities {
                         let mut should_insert = true;
                         if coord_entities.len() > 1 {
-                            let start = start.translation().truncate();
                             let dest = Vec2::new(coord.x as f32, coord.y as f32);
-                            let dir = dest - start;
+                            let dir = dest - *start;
                             rapier_context.intersections_with_ray(
-                                start,
+                                *start,
                                 dir,
                                 1.,
                                 true,
@@ -333,7 +332,7 @@ fn update_viewshed(
         viewshed.update(
             &viewer_entity,
             &mut visible_entities,
-            viewer_transform,
+            &viewer_transform.translation().truncate(),
             &rapier_context,
             &visible,
             &mut changed,
@@ -365,7 +364,7 @@ fn remove_visible(
                 viewshed.update(
                     &viewer_entity,
                     &mut visible_entities,
-                    start,
+                    &start.translation().truncate(),
                     &rapier_context,
                     &visible,
                     &mut changed,