wogrolly: Can somebody tell me why is it not possible, like in real life, to view the line straight?
IRL you have an unlimited number of views because you can move around. Here, WGT has a limited number of green views and when you land on the green, the closest view to straight is presented in the best picture they have from your spot.
When you get a crooked view there's a couple of things you can do. One is to look at the putt in the reverse view and the other is to use the +/- by the camera icon to scroll through the available views. You can usually get a serviceable view doing this.