Bug Why I can not see anything after create a entity with RenderMesh

After running,I can see a entity in Entities Hierarchy which have Local Transform,Local To World and Render Mesh.The Scale of Local Transform is 3 and The Mesh and Material is not Null. I also create a GameObject with same Material and Mesh then I can see the model correctly.

Codes show below:

Code (CSharp):

1. using UnityEngine;
2. using Unity.Entities;
3. using Unity.Transforms;
4. using Unity.Collections;
5. using Unity.Rendering;
6.  
7. public class NewBehaviourScript : MonoBehaviour
8. {
9.      // Start is called before the first frame update
10.         [SerializeField] private Mesh mesh;
11.         [SerializeField] private Material material;
12.         void Start()
13.         {
14.          
15.             EntityManager entityManager = World.DefaultGameObjectInjectionWorld.EntityManager;
16.             EntityArchetype entityArchetype = entityManager.CreateArchetype( typeof(LocalTransform),typeof(RenderMesh),typeof(LocalToWorld));
17.          
18.             //Entity entity= entityManager.CreateEntity(entityArchetype);
19.             NativeArray<Entity> entityArray = new NativeArray<Entity>(1, Allocator.Temp);
20.             entityManager.CreateEntity(entityArchetype, entityArray);
21.             //entityManager.SetComponentData(entity,new levelComponent{level =114514});
22.             for (int i = 0; i < entityArray.Length; i++)
23.             {
24.                 Entity entity = entityArray[i];
25.                 entityManager.SetComponentData(entity,new LocalTransform(){Scale = 3});
26.                 entityManager.SetSharedComponentManaged(entity,new RenderMesh() {mesh = mesh,material = material});
27.             }
28.  
29.             entityArray.Dispose();
30.         }
31. }
32.  

 

RenderMesh isn't actually used at runtime. Instead, you need a whole mess of components.
https://docs.unity3d.com/Packages/c...phics@1.0/manual/runtime-entity-creation.html

 

Oh,It seems that UnityECS is developing a bit quickly.The old Tutorial dosen`t work.Thanks