This file is a simple illustration of the Track To constraint. Select the cube (right-click) and Grab (G) it to move it around. Notice that both the camera and the cone follow its every movement.

Files:

• trackto.blend

The cube has been given a Stretch To constraint with Suzanne as it’s target. So anywhere you Grab (G) and move Suzanne to, the cube will scale itself and try to reach her.

Files:

• stretchto.blend

This .blend file should match the first figure in Chapter 10. To see what the curve in the Ipo Curve Editor does, move your mouse cursor into the 3D View and press Alt+A.

Files:

• ipo_curve_editor.blend

The cube has a Floor constraint with the plane as its target. Try Grabbing (G) and moving the cube below the plane. You can’t do it. That’s the basis of the floor constraint.

One thing to pay attention to, though, is where the constraint happens. Note that the cube can actually go through the plane. This is because the constraint opeerates on the centerpoint of both objects. So the centerpoint of the cube cannot go beyond the centerpoint of plane.

Files:

• floor.blend

Suzanne has a Copy Rotation constraint on the cube. This means that if you rotate the cube, Suzanne will rotate to match its orientation. Go ahead… try it out.

Files:

• copy_rotation.blend