UT3 Editor
From wikinotes
It has been a very long time since I used UT3 Editor professionally, It allows you to very easily preview and make changes to your models and their shaders. Unfortunately, I don't remember very much.
It has been a very long time since I used UT3 Editor professionally, It allows you to very easily preview and make changes to your models and their shaders. Unfortunately, I don't remember very much.