User Manual

Use the vertical aperture size to get the vertical angle of view and the horizontal aperture size
to get the horizontal angle of view.
Plane of Focus (for Depth of Field)
Like a focal point on a real-world camera, this setting defines the distance from the camera to
an object. It is used by the OpenGL renderer in the Renderer 3D node to calculate depth
of field.
Stereo
The Stereo section includes options for setting up 3D stereoscopic cameras. 3D stereoscopic
composites work by capturing two slightly different views, displayed separately to the left and
right eyes. The mode menu determines if the current camera is a stereoscopic setup or a mono
camera. When set to the default mono setting, the camera views the scene as a traditional 2D
film camera. Three other options in the mode menu determine the method used for 3D
stereoscopic cameras.
Toe In
In a toe-in setup, both cameras are rotating in on a single focal point. Though the result is
stereoscopic, the vertical parallax introduced by this method can cause discomfort by the
audience. Toe-in stereoscopic works for convergence around the center of the images but
exhibits keystoning, or image separation, to the left and right edges. This setup is can be used
when the focus point and the convergence point need to be the same. It is also used in cases
where it is the only way to match a live-action camera rig.
Off Axis
Regarded as the correct way to create stereo pairs, this is the default method in Fusion. Off Axis
introduces no vertical parallax, thus creating stereo images with less eye strain. Sometimes
called a skewed-frustum setup, this is akin to a lens shift in the real world. Instead of rotating the
two cameras inward as in a toe-in setup, Off Axis shifts the lenses inward.
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