I am trying to separate noesisui thread and unity render thread in unity! I invoked View.Update in ui thread and NoesisRenderer.RenderXXX in Unity Thread. it worked fine. but I encounted some problem that there was nothing showing when I created more than one View and Camera. the noesis ver is 2.2.2 and unity version is 2018.4.01
emm. it's seems my fault! it can display right now, but sometime times unity crashs.it's probably my problem. but could you supply the pdb file ,so that i may guess what happens

Could you elaborate a bit more about what you are trying to achieve? The Rendering Architecture Guide is probably useful here. Inspecting our NoesisView implementation is the best way to discover how to implement custom scenarios. The file NoesisRenderer.cs contains all the resources you need to interact with the Render thread in Unity. It must be done this way, because the render thread is not available in C#, it is internally implemented in C++.

NoesisRenderer.RenderOnscreen(View, FlipRender(), _commands);
                Graphics.ExecuteCommandBuffer(_commands);
                GL.InvalidateState();

but i am not sure if this is a good idea. could you give me some advice?

but i am not sure if this is a good idea. could you give me some advice?

Well, I don't see anything conceptually wrong but I am not sure if Unity allows that kind of things. Could you open a private ticket about the PDB? I will send you a copy.