9.5.2

1046 • CHAPTER 21
ATTRIBUTE MANAGER • 1047
To lock an Attribute manager to specic elements, select the desired elements then click the lock icon
(near the top right corner of the Attribute manager — see Figure 1, point 2). To unlock, click the lock
icon once more.
Recording keys in the Attribute manager
To record a key for the parameter at the current frame, Ctrl-click on the parameter’s circle. Ctrl-click
the circle again to delete the key at the current frame.
To delete a parameter’s animation track, Ctrl-Shift-click on the parameter’s circle.
Editing parameters
To edit a parameter in the Attribute manager, do one of the following:
 Enter the new value into the parameter’s text box.
 Next to the parameter’s text box, you’ll nd two arrowheads, one pointing
up the other pointing down. Drag these arrows up or down to increment or
decrement the value.
 Position the mouse pointer on the parameter’s text box and rotate the mouse
wheel (if present and supported by your operating system) to increment or
decrement the value.
You can also make relative adjustments to multiple selected objects. For example, suppose a sphere
is positioned at (100,0,0) and a cube at (300,0,0). Select both objects and in the Attribute manager,
on the Coord tab, enter ‘x + 100’ into the P.X box. Both objects will be moved 100 units along the
X-axis. You can also enter equations, such as ‘sin(x)+sqr(x*324)’. The ‘x’ represents the parameter’s
original value.