User Manual

Table Of Contents
Dual 4:2:2 Y’CbCr stereoscopic video streams are output via HD-SDI on selected Blackmagic
I/O devices when you turn on the ”Use left and right eye SDI output” checkbox on the Master
Settings panel of the Project Settings. You can select either Side-by-Side or Line-by-Line output
to be fed to your stereo-capable display, depending on your display’s compatibility.
Stereo 3D Output Options
Additionally, the Viewer and video scopes can be set to display both “eyes” in one of a variety
of different modes.
Side by Side: Displays both images side by side. Each eye is squeezed anamorphically
to fit both eyes into the same resolution as the GUI viewer.
Top and Bottom: Displays both images one over the other. Each eye is squeezed
vertically to fit both eyes into the same resolution as the GUI viewer.
Line by Line (Even/Odd): An interlaced mode where each eye is displayed on
alternating lines. The thickness of the lines as seen in the Viewer depends on how
zoomed in you are.
Checkerboard: Displays both eyes via an alternating checkerboard pattern. This is an
excellent mode for identifying regions of the image where there’s variation in color or
geometry between the two eyes.
Anaglyph (B/W): Each eye is desaturated and superimposed via Red/Cyan anaglyph
to show the disparity between both eyes in different regions of the image. Left-eye
divergence is red, and right-eye divergence is cyan. Regions of alignment between
both eyes appear grayscale.
Anaglyph modes are useful for evaluating the geometric differences between both
eyes, as well as for identifying the point of convergence (where both eyes align most
perfectly) that places a region of the image at the screen plane.
Red/cyan color coding also identifies the direction of parallax. For any given feature,
disparity such that red is to the right and cyan is to the left indicates positive parallax
(backward projection away from the audience). Red to the left and cyan to the right
indicates negative parallax (forward projection towards the audience).
Anaglyph (Color): Similar to Anaglyph (B/W), except that regions of close alignment are
shown in full color. Incidentally, both anaglyph modes can be previewed on ordinary
displays using old-fashioned red/cyan anaglyph glasses, enabling stereo 3D monitoring
on non-stereo 3D-capable displays.
Difference: Superimposes grayscale versions of both eyes using the difference
composite mode. Corresponding left/right-eye pixels that are perfectly aligned appear
black, while pixels with disparity appear white. This mode is extremely useful for
evaluating geometric differences between both eyes, as well as for identifying the point
of convergence, without the distraction of color that the anaglyph modes present.
NOTE: Only displays the eye corresponding to the currently selected timeline
in the Viewer. However, this option also works in conjunction with the “Use
Dual Outputs on SDI” checkbox in the Master Settings of the Project Settings
which, when turned on, outputs each eye to an individual HD-SDI output of
your Blackmagic I/O card.
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