Translations:Tutorial for open windows/61/en

23. Select this  object, and change the property  to 0.02, which is equivalent to 1:50, a scale suitable for typical buildings. This means every meter in the 3D view will be shown as 20 mm in the page. The object should appear in the center of the page, and can be moved to a better position on the left side. The two doors should look like they are open, but only the left window should look open. The reason the right window doesn't appear in the projection is that the plane defined by  does not cut through this right window.