Walkthrough Controller
This controller enables you to walk through your model without adding any other cameras or models. It also includes simple collision detection to let you go up and down stairs and avoid going through walls. You have to be in the “Free Camera” mode when you use the controller since it manipulates the free camera.
Click the button labelled “Walk” in the toolbar to open the walkthrough controller, as shown below.
This is a closer look at the walkthrough controller and shows how to use it. When you’d like to change the speed, the speed slider in the toolbar is also available. You can adjust the speed finely with the walkthrough controller while the slider is useful when you’d like to change roughly.
Here is a movie which shows how you can go up stairs with the walkthrough controller.
How to use the Walkthrough Controller
Walkthrough Demo Movie