Unity: Pass texture pointer from OpenGL to Unity

I'm moving connected a segment successful Unity wherever I person textures loaded astatine runtime. As a consequence of that, nan segment is being slowed down (even pinch co-routines), truthful I thought possibly I could move nan texture loading task to a plugin and person it tally arsenic a parallel thread..

Is location a measurement to load a texture pinch OpenGL successful a Unity autochthonal plugin, and return a pointer backmost to nan segment for further use?