Sega Dreamcast 3D Ripping method?

[MadkaT]

Hello, I'm interested in rip some 3D models from fighting stages but as far a I read on the internet seems to be difficult/impossible to rip from Dreamcast emulators, I have Demul and NullDC emulators, can someone guide me or make a recomendation from a 3d ripper? I don't need animations, only the model and texture dump to remake them. Thanks in advance 4 reading.