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Question Run Mesh.SetVertices in parallel

Discussion in 'Physics for ECS' started by hauwing, Feb 14, 2021.

  1. hauwing

    hauwing

    Joined:
    Dec 13, 2017
    Posts:
    69
    Hello,

    I have a scene where there are multiple meshes, and there is a job system to update the vertices of these meshes using the Entities.ForEach and ScheduleParallel() manner, which is working fine.

    I also have another job to assign the updated vertices back to the meshes and recalc the normal as the following, but it only allows .WithoutBurst().Run(). Is there a way to run the mesh update job in a parallel way? thanks.



    Code (CSharp):
    1. public class UpdateMeshVertex_JobSystem : SystemBase
    2. {
    3.     protected override void OnUpdate()
    4.     {
    5.  
    6.         Entities.ForEach(
    7.         (
    8.          in DynamicBuffer<Vertex_Element> vertex_buffer,
    9.          in RenderMesh RM
    10.          ) =>
    11.         {
    12.  
    13.             RM.mesh.SetVertices(vertex_buffer.ToNativeArray(Allocator.Temp).Reinterpret<Vector3>());
    14.             RM.mesh.RecalculateNormals();
    15.  
    16.         })
    17.         .WithoutBurst().Run();
    18.       //.ScheduleParallel();
    19.       //error DC0019: Entities.ForEach uses ISharedComponentType RenderMesh. This is only supported when using .WithoutBurst() and  .Run()
    20.     }
    21. }
     
  2. GameDeveloper1111

    GameDeveloper1111

    Joined:
    Jul 24, 2020
    Posts:
    100
    See Mesh.MeshData for writing to vertex buffers from C# jobs: