Since we can't make our own models or edit them, I tried to port a model from another game...
And here is the result:
It's Super Bell Hill from Super Mario 3D World. But without textures...
So can it load textures or are they somewhere in the SM3DW model files which we can't decrypt?
And here is the result:

It's Super Bell Hill from Super Mario 3D World. But without textures...
So can it load textures or are they somewhere in the SM3DW model files which we can't decrypt?