1. Hold down the New button on the textures tab of the Resource palette.
2. You will get a list of the possible texture types. Select one from this list. The Texture Editing dialog box will open. This illustration is for the Surface texture, which is one of the most commonly used type.
3. When the dialog opens for the first time, it will be in the shortened form displaying the Basic fields. You can use these basic fields to set the parameters for the new texture, or you can click the Expert button, and the dialog will expand to show more options. When you are through editing, don't forget to click OK.