Technologies for developing 3D building maps?

Question

Programming

I want to develop a mobile application for 3D building maps with the ability to find the path to some rooms. Maybe someone will throw ideas for the implementation of the project.
I'm thinking of making a 3d map in 3D Max and implementing it in Unity (something like a corridor game). Can you suggest alternatives and whether smartphones will pull such a miracle.

Answer 1

Of course they will, look at the current games.

Answer 2

I recommend myself as a modeler and designer :)
And the blend4web engine.