Deferred NativeArray IJobForEach_BC

Hello,

Wondering if someone could help me out, how do I create a deferred NativeArray for IJobForEach_BC, the meshTrianglePositions array should only be create if a the GetMeshTrianglePositions executes.

Code (CSharp):

1.  
2.  
3. //
4. // Get Mesh Positions
5. var meshTrianglePositions = new NativeArray<Vector3>(triangleCount[0] * 3, Allocator.TempJob);
6.  
7. inputDeps = new GetMeshTrianglePositions
8. {
9.     MeshTrianglePositions = meshTrianglePositions,
10.     TileBuffer = GetBufferFromEntity<TilesBufferComponent>(true)
11. }.ScheduleSingle(_qTrianglesBuffer, inputDeps);
12.  
13.  

 

I guess this GetMeshTrianglePositions require some component to run? You can simply call RequireForUpdate in OnCreate, or hide the creation logic inside a if-check,

if (query.CalculateEntityCount > 0){// Create array, schedule job.}