User Manual

Mode
 Global: The eyes are simply translated up or down by the Y-shift to match up.
 Per Pixel: The eyes are warped pixel-by-pixel using the disparity to vertically align.
Keep in mind that this can introduce sampling artifacts and edge artifacts.
Y-shift
Y-shift is available only when the Mode menu is set to Global. You can either adjust the Y-shift
manually to get a match or drag the Sample button into the viewer, which picks from the
disparity channel of the left eye. Also remember, if you use this node to modify disparity, you
can’t use the Sample button while viewing the node’s output.
Snap to Whole Pixels
You can snap the global shift to whole pixels by enabling this option. When enabled, there is no
resampling of the image, but rather a simple shift is done so there will be no softening or image
degradation.
Convergence Point
The Convergence Point section is used as a global X-translation of L/R images.
Apply to
This menu determines which eyes are affected by convergence. You can choose to apply the
convergence to the left eye, right eye, or split between the two. In most cases, this will be set to
Split. If you set the eyes to Split, then the convergence will be shared 50-50 between both
eyes. Sharing the convergence between both eyes means you get half the shift in each eye,
which in turn means smaller holes and artifacts that need to be fixed later. The tradeoff is that
you’ve resampled both eyes rather than keeping one eye as a pure reference master.
X-shift
You can either use the slider to adjust the X-shift manually to get a match or use the Sample
button to pick from the disparity channels for easy point-to-feature alignment.
Snap
You can snap the global shift to whole pixels using this option. In this mode, there is no
resampling of the image, but rather a simple shift is done so there will be no softening or image
degradation.
Eye Separation
Eye Separation changes the distance between the left/right eyes, causing objects in the left/
right eyes to converge/diverge further depending on their distance from the camera.
This has the same effect as the Eye Separation option in the Camera 3D node.
Separation
This is a scale factor for eye separation.
 When set to 0.0, this leaves the eyes unchanged.
 Setting it to 0.1 increases the shifts of all objects in the scene by a factor of 10%
in each eye.
 Setting it to 0.1 will scale the shifts of all objects 10% smaller.
Chapter – 106 Stereo Nodes 2379