EntityCommandBuffer.RemoveComponent<T>() strange behaviour

Hi guys!

I have an issue with removing component from an entity when duplicate it in Hierarchy. It happens only when i do this through a job.

Here is my IComponentData code

Code (CSharp):

1. using Unity.Entities;
2. using System;
3.  
4. [Serializable]
5. public struct InitialBug : IComponentData { }
6.  
7. public class InitialBugComponent : ComponentDataWrapper<InitialBug> { }

And JobComponentSystem code

Code (CSharp):

1. using Unity.Collections;
2. using Unity.Entities;
3. using Unity.Jobs;
4. using UnityEngine.Jobs;
5.  
6. public class InitialBugBarrier : BarrierSystem { }
7.  
8. public class InitialBugSystem : JobComponentSystem
9. {
10.     public struct Data
11.     {
12.         [ReadOnly] public EntityArray entity;
13.         [ReadOnly] public ComponentDataArray<InitialBug> initialBug;
14.     }
15.  
16.     [Inject] Data m_data;
17.     [Inject] InitialBugBarrier m_barrier;
18.  
19.     protected override JobHandle OnUpdate(JobHandle inputDeps)
20.     {
21.         JobHandle removeInitialLocalRotationJob = new RemoveInitialLocalRotationJob()
22.         {
23.             commandBufer = m_barrier.CreateCommandBuffer(),
24.             entity = m_data.entity
25.         }.Schedule();
26.  
27.         return removeInitialLocalRotationJob;
28.     }
29.  
30.     [ComputeJobOptimization]
31.     struct RemoveInitialLocalRotationJob : IJob
32.     {
33.         [WriteOnly] public EntityCommandBuffer commandBufer;
34.         [ReadOnly] public EntityArray entity;
35.  
36.         public void Execute()
37.         {
38.             for (int i = 0; i < entity.Length; i++)
39.             {
40.                 commandBufer.RemoveComponent<InitialBug>(entity[i]);
41.             }
42.         }
43.     }
44. }

Then in editor, need to create an EmptyGameObject, add InitialBugComponent to it and hit Play. At this point all works perfectly and removing of component is done, but if you try to duplicate the EmptyGameObject you will get an error:



What happens and what i'm doing wrong?

 

up

I've tried the new 6th release of ECS, the problem does not change. Anybody has tried to reproduce that?

 

Yes it works, thank you!
But i'm not sure that i understand why it is. Do i should turning off [ComputeJobOptimization] in all jobs that have an EntityCommandBuffer field? It would be great if in such cases the error system notified about this, since it is done for [ReadOnly] and [WriteOnly] attributes.

 

Yes at present EntityCommandBuffer doesn't work with burst.
There is an EntityCommandBuffer.Concurrent that can work in multiple jobs, previously you had to create a new command buffer for each separate job. I dont know if it's burst compatible yet but I would hazard a guess no.

 

Well, it does work with DestroyEntity just not RemoveComponent.

 

Does either EntityCommandBuffer or EntityCommandBuffer.Concurrent work with Burst now?