Comment by moring

If you are using a 3d engine that doesn't support actual isometric views, you can put the "iso" in isometric by moving the camera far away and at the same time zooming in on the object. This has the effect that all points of the object have roughly the same distance from the camera (compared to the huge distance you moved the camera away), so there is no perspective "shortening" of points farther away. This is especially important if you have rectangular wall segments that must fit together.