I am not a game developer and its not my domain. I am a Biotechnology student. A part of my project requires making a realtime walkthrough of a 3D house. Someone suggested me to use Blender. But here I have more specification : - a walkthrough in 3D such that movement of the user is not through the keypads or mouse but some external running script, where if a particular condition is true, user should move forward, backward, left or right (according to conditions).
What all tutorials I should go through and whatever I am trying to achieve how should I go about approaching it ?