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790 Chapter 21: User Interface
Adjusting perspective
Note: This button replaces the Zoom A ll button
whenaCameraviewportisactive.
Tip: Hold down the CTRL key to magnify the effect
of the mouse on perspective adjustment.
A target camera can pass through its target object
whileyouareusingPerspective. Whenthis
happens, the FOV reaches its maximum angle
of 180 degrees at the target location and cursor
motion is reversed until you release the drag.
A free camera continues mov ing along an infinite
path but uses an implied target position to cont rol
the FOV change rate. This implied target is defined
as a point specified by the Target Distance field in
the Parameters rollout for the free camera.
Procedure
To change perspective for a camera:
1.
ActivateaCameraviewport.
2. Click Perspective.
The button turns yellow when it is on.
3. Drag to change FOV and dolly simultaneously.
• Drag up to move the camera closer to
its target, widen the FOV, and increase
perspective flare.
• Drag down to move the camera away from
its target, narrow the FOV, and decrease
perspective flare.
4. Press ESC or rig ht-click to turn off the button.
Roll Camera
Activate a Camera viewport. > Viewpor t navigation
controls > Roll Camera
Roll Camera rotates a target camera about its line
of sight, and rotates a free camera about its local
Zaxis.
Rolling a camera
Note: This button replaces the Zoom Extents
button when a Camera vie wport is active.
Procedure
To roll a camera:
1.
ActivateaCameraviewport.
2. Click Roll Camera.
The button highlights when it is on.
3. Drag horizontally to roll the view.
4. Press ESC or rig ht-click to turn off the button.