Autodesk LIGHTSCAPE, Manual

Page: 242 / 362

Animation 15
234
Lightscape
You can also select a speed curve control point, then
enter an exact distance and/or time value in the
Distance and Time boxes.
The speed curve in the speed graph should be posi-
tioned as follows:
7. To add control points to the speed curve, select
Insert from the Mode list on the Motion panel, then
click the speed graph.
A control point is added at the location of the mouse
click.
8.
Select Edit from the Mode list.
In Edit mode, you can change the speed curve by:
• Moving control points
• Changing the slope
•
Joining or breaking control point handles to intro-
duce abrupt changes
• Deleting control points.
9.
Click the Playback tab, then use the playback con-
trols to preview your animation.
For information on playing back animations, see
“Animation Playback Controls” on page 238.
Moving Speed Curve Control Points
You can move the control points on a speed curve by
clicking and dragging them to new locations.
You can also move control points by specifying values
for the time and distance in the Time and Distance
boxes, and then clicking Apply.
The first keyframe of the graph is always fixed at time
zero, but you can control its distance along the path.
The neighboring control points constrain a selected
control point’s position. You cannot move a control
point before the previous keyframe or after the next
one.
For more information about moving control points,
see “Changing the Slope of the Camera Path” on page
225.
Making a Camera Speed Up or Slow Down
When you first create an animation, the camera
moves from one keyframe to the next at a constant
speed.
tim e
di
st
ance
control point
Position the control point along the time axis (horizontally)
to set the animation duration.
Position the control point along the distance axis (vertically)
to set the length of the camera path that is played during
the animation.
Distance of animation Time of animation
Distance box
Time box