Creating the lights and windows

Once the holes have been made in the body of the model for the lights and windows use the border selection tool to select the edges of these holes. With the border of one of the windows selected hold shift and drag the selection towards the inside of the model, this will create a thickness to the body. The next tool I used was the bridge tool. The bridge tool connects 2 opposite polygons with another polygon. To do this for the window I selected 3 edges at the top and bottom of the window and clicked the bridge tool. An extra tool bar is available to add in extra geometry and polygons.

However doing this will only cover up part of the hole, therefore to do the rest I again used the boreder selection tool to select the small hole that was left and used the cap tool to completly cover over the hole and create the window. The reason I didnt just use the cap tool to create the window straight away is because this tool only adds in one polygon whereas using the bridge tool edges and extra polygons are created so that the window can be shaped more easily.

As the window will be made from a different material aas the rest of the car the window itself needs to be seperated from the car model. To do this I used the polygon selection tool to select all the polygons that make up the window as shown in the picture above. I then clikced on the detach tool to seperate it from the rest of the body. Rather than making it a seperate object completely I turned it into a seperate element in the already existing model. By using the element selection tool I can then select the windwo individually and make it into a different material to that of the body. I repeated this method for the rest of the windows as well as the lights.