Question How do I pass buffers from other entities to an IJobEntity

Im trying to generate chunked terrain meshes, each chunk entity has a buffer of data from which the mesh is created.
The problem is that I also need this data from neighboring chunk entities so i can calculate normals & have the chunk geometry merge seamlessly

Is it somehow possible to pass buffers from other entities of the same archetype to a IJobEntity or do i have to implement this using plain IJobs ?

 

Does BufferLookup not solve your problem?

 

Here is an example. You can pass in BufferLookup<BUFFER TYPE> into your job. It's going to be a list of all dynamic buffers that exist keyed by Entity they belong to.

Code (CSharp):

1.  
2. public partial struct SomeSystem : ISystem
3. {
4.     private BufferLookup<NeighborBufferElement> neighborLookup;
5.  
6.     void OnCreate(ref SystemState state)
7.     {
8.         neighborLookup = state.GetBufferLookup<NeighborBufferElement>(true);
9.     }
10.     void OnUpdate(ref SystemState state)
11.     {
12.         neighborLookup.Update(ref state);
13.         SomeJob job2 = new SomeJob
14.         {
15.             neighborLookup = neighborLookup,
16.         };
17.     }
18. }
19.  
20. partial struct SomeJob : IJobEntity
21. {
22.     [ReadOnly] public BufferLookup<NeighborBufferElement> neighborLookup;
23.  
24.     public void Execute(.....)
25.     {
26.         Entity someEntity;
27.  
28.         DynamicBuffer<NeighborBufferElement> getBuffer = neighborLookup[someEntity];
29.         //USE THE BUFFER
30.     }
31.  
32. }