Question Use a generated Mesh for a baked entity prefab

Hey, the new baking workflow is nice
But i wanted to do to following:
bake an entity prefab with a mesh that is generated by the start of the game once, for all entities for that type then.

i wanted to do it like so:

Code (CSharp):

1.    
2. public class LivingControllerSingletonAuthoring : SingletonBehaviour<LivingControllerSingletonAuthoring> {
3.     public GameObject livingPrefab;
4. }
5.  
6. public class LivingControllerSingletonBaker : Baker<LivingControllerSingletonAuthoring> {
7.  
8.     public override void Bake(LivingControllerSingletonAuthoring authoring)
9.     {
10.       authoring.livingPrefab.GetComponent<MeshFilter>().mesh =    EntityMeshManager.GetEntityMesh(EntityMeshManager.EntityType.Person);
11.  
12.  
13.       AddComponent<LivingControllerData>(new LivingControllerData
14.          {
15.             livingPrefabEntity = GetEntity(authoring.livingPrefab)
16.          });
17.        }
18.    }
19.  
20.    public struct LivingControllerData : IComponentData {
21.        public Entity livingPrefabEntity;
22.    }
23.  

when i do:
authoring.livingPrefab.GetComponent<MeshFilter>().mesh = EntityMeshManager.GetEntityMesh(EntityMeshManager.EntityType.Person);

then the mesh is changed on the prefab, haha of course, i forgot that.

then i tried to use GameObject.Instantiate to create a temp instance of the prefab, change the mesh, and use that instance then as prefab for the entityPrefab, and destroy it afterwards
that created alot of GameObjects.

i feels like the whole idea of seting a generated mesh in the baking process seems to be the wrong approach, but when and where could i intercept to run my mesh generator (wich is managed) to create the mesh i want to use for the entities?

 

I don't think you can bake something that doesn't have a backing prefab. I see two options, generate prefabs with the meshes in editor, save and bake those, or don't use baking for the meshes and instead generate and assign them at runtime. This thread helped me understand how to do the latter https://forum.unity.com/threads/how-to-replace-mesh-with-new-brg-api.1345112/