Take collision groups into account for ray-casting.

src_testbed/testbed.rs

@@ -24,7 +24,8 @@ use rapier::dynamics::{
 #[cfg(feature = "dim3")]
 use rapier::geometry::Ray;
 use rapier::geometry::{
-    BroadPhase, ColliderHandle, ColliderSet, ContactEvent, NarrowPhase, ProximityEvent,
+    BroadPhase, ColliderHandle, ColliderSet, ContactEvent, InteractionGroups, NarrowPhase,
+    ProximityEvent,
 };
 use rapier::math::Vector;
 use rapier::pipeline::{ChannelEventCollector, PhysicsPipeline, QueryPipeline};
@@ -1188,10 +1189,12 @@ impl Testbed {
             .camera()
             .unproject(&self.cursor_pos, &na::convert(size));
         let ray = Ray::new(pos, dir);
-        let hit = self
-            .physics
-            .query_pipeline
-            .cast_ray(&self.physics.colliders, &ray, f32::MAX);
+        let hit = self.physics.query_pipeline.cast_ray(
+            &self.physics.colliders,
+            &ray,
+            f32::MAX,
+            InteractionGroups::all(),
+        );
 
         if let Some((_, collider, _)) = hit {
             if self.physics.bodies[collider.parent()].is_dynamic() {