Best approach for disabling Entities by Region

Hello Everyone,

me and some friends are making a TOP-DOWN game style with a big World Map ( arround 300k Entities and 1.4 km² ), it's big enough to create unstable framerate on med-end devices.

im trying to optimize the Hybred Renderering and Physics calculations by manually disabling Chunks that are too far from camera.

the solution i found is deviding all entities by adding a ChunkComponentData CCD "Region" in a way that i can Enable/Disable all chunks in Bursted Jobs.

eg: in this case only chunks with CCD (8,9,10,14,15,16,20,21,22) will be enabled.


what would be the most efficient way to select all chunks having CCD with values (8,9,10,14,15,16,20,21,22) ?

Note:
* visible Regions can be up to 9 visible regions simultaneously.
* this system will run only when the camera itself switches Region.
* this system will be applied to all chunks having the ( ChunkWorldRenderBounds CCD or PhysicsCollider CD ) + RegionID CCD.

 

I have not tried it myself, but you can create a ISharedComponentData called "RegionID" to hold the region where that entity is currently in. You should give this to all of your entities in the world.
Then when you want to render (or anything really. You can even cull logic here), you filter your query by "RegionID" shared component.

 

are you guys planning to add some kind of Filtring queries Like dotnet's LINQ queries Feature ?
EG:

Code (CSharp):

1.  
2.     EntityQuery m_RegionsToDisable;
3.  
4.     protected override void OnCreate()
5.     {
6.         base.OnCreate();
7.  
8.         m_RegionsToDisable = GetEntityQuery(ComponentType.ReadOnly(typeof(WorldMapRegion)));
9.     }
10.  
11.     protected override void OnUpdate()
12.     {
13.         m_RegionsToDisable.SetSharedComponentFilter<SCD_Type>(scd => { scd.X >= -1 && scd.X <= 1 && scd.Y >= 2 && scd.Y <= 4  });
14.  

 

Doesn't the use of EntityManager create a sync point, and we want to avoid sync points? Can you do query changes to the components using entity command buffer? or am I missing a point?