## Introduction

This part explains step by step how to create a scene that you can render with RT program. There are explained some advanced features too.

The scene is described by a text file; the extension used is "rt".

You must write a .rt file using a text editor, like the dos edit, windows notepad or the editor which you prefer. You must be able to use one of it, to read a file and to save it.

That is not the only a way to create a .rt file. You may use the RT Editor. It creates a .rt file in the same format explained here.

For all paragraphs in the form :

title ( Tutxx.rt )

there is a .rt file which uses a specific characteristic. You can find that file in the "examples\tutorial" directory; so you can print this and not the examples.