There is no plugin for Project64 yet that dumps the geometry of 3D models, however that will change, as I'm currently in the process of coding a N64 emulator video plugin that does. It also will use OpenGL, as the NVIDIA GeForceFX video cards have pretty sloppy DirectX9 pixel shader 2.0 support, especially the GeForceFX 5200.
Lemmy's plugin for Nemu64 currently is the only plugin that is currently usable
to dump geometry with textures.