For my games design class I had to make a replica of my bedroom.  We had a budget of 3,000 tris which is crazy small, and the texture maps had to be 128×128 pixels!  These requirements aren’t as common in the industry now as they were a few years ago.  For reference, the average texture map I had been working in is at least 2kx2k, and scenes typically have into the hundreds of thousands to millions of polygons, so this was a challenge.  😀  Also, the lighting is done through vertex color application instead of using actual lights, so anytime I want to change the lights is a bit of a hassle. x_x