Autodesk LIGHTSCAPE, Manual

Page: 237 / 362

Setting Camera Orientation
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At Path
The camera looks at a point on the camera path where
it will be in a specified amount of time. Looking ahead
a short distance along a path usually produces a more
natural walk-through than does using Along Path.
This is because in the real world, people usually look
somewhat ahead of where they are actually walking.
For example, if you enter a value of 1 in the DT box,
the camera looks one distance unit ahead of its
current position.
Note: Use the Units properties to specify the time
and distance units for the model. For more informa-
tion, see “Setting Document Properties” on page 45.
To specify a distance or time offset:
1. Select the keyframe(s).
2.
On the Path panel of the Animation dialog, select
At Path from the Look list.
The DT box appears.
3. Enter an offset in the DT box.
Note: If you select a negative offset, the camera
looks backward along the path.
At Point
The camera looks at a specified point for the selected
keyframes.
When you select the At Point option, Lightscape
places one focus point per selected keyframe at your
model’s origin (0, 0, 0) and draws a bright green line
between all selected keyframes and the point. You can
move this focus point.
You edit the focus point as you would edit a keyframe.
In fact, the focus point acts as a keyframe for the
camera’s Look At path.
As with the camera path, Lightscape, by default, uses
straight-line segments between the Look At path’s
keyframes. You can edit the path in the same way as a
camera path, moving keyframes and changing slope
DT box
At Point camera orientation
Focus
point