Resolved Cast ray against a single collider without using CollisionWorld

Solved

tertle's advice worked:

---

I'm trying to cast a ray against a particular collider without using CollisionWorld.

I tried the following and I'm not getting a hit: `physicsCollider.Value.Value.CastRay(raycastInput)`

Using `collisionWorld.CastRay(raycastInput)` works but seems to be doing extra work, even if I use a CollisionFilter that filters out everything except the collider of interest.

Interestingly, `physicsCollider.Value.Value.CastCollider(colliderCastInput)` *does* work.

Here is the code I'm using, in the `1a. Hello World` PhysicsSamples scene, Unity 2020.3.30f1, Entities 0.50:

Spoiler: `physicsCollider.Value.Value.CastRay(raycastInput)`: No hit

Code (CSharp):

1. using Unity.Entities;
2. using Unity.Jobs;
3. using Unity.Physics;
4. using Unity.Mathematics;
5. using Unity.Transforms;
6. using Debug = UnityEngine.Debug;
7.  
8. public partial class TestSystem : SystemBase
9. {
10.     protected override void OnUpdate()
11.     {
12.         Entities
13.             .WithAll<TestTag>()
14.             .ForEach((Entity entity, in Translation translation, in PhysicsCollider physicsCollider) => {
15.                 var raycastInput = new RaycastInput
16.                 {
17.                     Start  = translation.Value - 10f * math.forward(),
18.                     End    = translation.Value + 10f * math.forward(),
19.                     Filter = CollisionFilter.Default
20.                 };
21.                 if (physicsCollider.Value.Value.CastRay(raycastInput))
22.                 {
23.                     Debug.Log($"Hit");
24.                 }
25.                 else
26.                 {
27.                     Debug.Log($"No hit");  // Always outputs "No hit"
28.                 }
29.             }).Schedule();
30.     }
31. }

Spoiler: `physicsCollider.Value.Value.CastCollider(colliderCastInput)`: Hit

Code (CSharp):

1. using Unity.Entities;
2. using Unity.Jobs;
3. using Unity.Physics;
4. using Unity.Mathematics;
5. using Unity.Transforms;
6. using Debug = UnityEngine.Debug;
7.  
8. public partial class TestSystem : SystemBase
9. {
10.     protected unsafe override void OnUpdate()
11.     {
12.         Entities
13.             .WithAll<TestTag>()
14.             .ForEach((Entity entity, in Translation translation, in Rotation rotation, in PhysicsCollider physicsCollider) => {
15.                 var colliderCastInput = new ColliderCastInput
16.                 {
17.                     Collider    = physicsCollider.ColliderPtr,
18.                     Orientation = rotation.Value,
19.                     Start       = translation.Value - 10f * math.forward(),
20.                     End         = translation.Value + 10f * math.forward(),
21.                 };
22.                 if (physicsCollider.Value.Value.CastCollider(colliderCastInput))
23.                 {
24.                     Debug.Log($"Hit");  // Always outputs "Hit".
25.                 }
26.                 else
27.                 {
28.                     Debug.Log($"No hit");
29.                 }
30.             }).Schedule();
31.     }
32. }

I'm also getting this behavior in Unity 2020.3.14f1, Entities 0.17.