I made a model in Zbrush and then created normal and displacement maps and exported to Maya. In Maya, when I render the character with mental ray it renders perfect, high detail on the low mesh. I imported this mesh into Unity, and when I click on the game mode it does not appear rendered at all, it is just an untextured low poly mesh with no detail. I am very new to unity, how do I render such a character correctly in unity? Thanks very much.
The model has probably not been given an appropriate material on import (the materials used by 3D modelling apps don’t import directly into Unity). Try creating a new material in Unity with the correct shader and texture and apply it to the model.