IL2CPP missing native dll referenced by managed library

I have a NET dll that needs a few other (native) dlls in a subfolder in the same spot. They are all set to be included in the build, and are there, just not with the subfolder

In 2017.4 i have to manually copy them to a new subfolder in the managed folder, then everything works.

Now in 2018 and il2cpp i dont know where to put them.

Not sure if i already missed something in 2017, but i set all dlls to be included (x64 only)

in the editor everything works fine ( both 2017 and 2018)

In case it help - the library in question is the Embree.NET wrapper around the Intel Embree raytracing library

EDIT:
they are in the Plugins folder, but the library requires them to be in a "x64" subfolder, and however i try i cant seem to get it to work ..

the net library searches for the dlls like this:

Code (CSharp):

1. string fullPath = System.Reflection.Assembly.GetAssembly(typeof(RTC)).Location;
2. string assebmlyDirectory = Path.GetDirectoryName(fullPath);
3. string architecture = IntPtr.Size == 8 ? "x64" : "x86";
4. string dllDirectory = Path.Combine(assebmlyDirectory, architecture);
5. // Temporarily change working directory and make a call to Embree native code
6. // to force the dll to load
7. string previousCurrentDirectory = Directory.GetCurrentDirectory();
8. Directory.SetCurrentDirectory(dllDirectory);

So it seems to look for a x64 folder relative to the current dll - that worked in 2017, but how to fix this in 2018?

 

there is no error message - i just compiled the embree wrapper as is, and whatever exceptions it may encounter - i dont get any errors.
But something changed between 2017 and 2018 - threr is no managed folder where i can put my dlls..

 

I think there is a misunderstanding - try to clarify:

2017.4 : Compile with mono - the build has a folder named 'Managed' - there are the Net Dlls. here i put my native dlls manually (after the build) inside a new 'x64' folder, so my managed embree dll can find them. It cant find them in the plugins - i guess because of the code in the fist post.

2018.1: Compile with IL2CPP - there is no managed folder anymore. I dont know where to put my native dlls for embree. It cant find them in the plugins folder (as before).

the observable difference is that i dont get any image - so to speak.. and i guess it is because my embree.dll (managed) cant find the native dlls to initialize. The program does not crash.

 

cool will try that - thanks!