Here’s a current work in progress Interactive Architectural type demo of a college Basketball Arena
it hasn’t been terribly optimized yet, so it requires a fairly hefty video card to play smoothly, that said, it runs at ~150fps on my 8800GT here, but at 5fps on my parents 3 year old dell. So your mileage may vary while I experiment!
Everything has been done with ingame lighting and shaders, nothing is baked, and was meant as a test specifically for that purpose, to see how far it can be pushed before requiring Texture Baking on a fair sized scene. (With the aim to be able to quickly iterate models in earlier phases of design without having to unwrap and bake!)
To the game! There is a quality button on the lower left that toggles between various settings of Anti Aliasing, Shader Quality, Shadow Quality.. so you can tailor it to a point to your hardware.
On the upper left is a selection of preset Camera views, clicking and dragging the mouse button in the viewport anywhere will ‘look’ the camera from the preset view.
On the upper right is some fun stuff, toggles for Ambient occlusion, Bloom shaders (glow) and a couple of sliders to adjust those primary values
there is also an alternate Daylighting scheme, if you do this i suggest toggling the roof, then you can adjust the time of day with the ‘TimeOfDay’ slider, and the ambient lighting with the ambient.
the rest are just toggles to show/hide various layers of objects