User Manual

Stereo Materials
Using the Stereo Mix material node, it is possible to assign different textures per eye.
Material viewer showing stereoscopic material.
Disparity
The Disparity node does the heavy lifting of generating disparity maps. This generates the
Disparity channel and stores it in the hidden aux channels of their output image.
NewEye, StereoAlign
NewEye and StereoAlign use and destroy the Disparity channel to do interpolation on the
color channel.
The hidden channels are destroyed in the process because, after the nodes have been applied,
the original Disparity channels would be invalid.
For these nodes to work, there must be either an upstream Disparity node generating the
hidden channels or an OpenEXR Loader bringing these channels in.
DisparityToZ, ZToDisparity
These nodes pass through, modify, or generate new aux channels, but do not destroy any.
TIP: If the colors between shots are different, use Color Corrector or Color Curves to
do a global alignment first before calculating the Disparity map. Feed the image you
will change into the orange input and the reference into the green input. In the
Histogram section of the Color Corrector, select Match, and also select Snapshot
Match Time. In the Color Curves’ Reference section, select Match Reference.
Separate vs. Stack
Stereo nodes can work in Separate or Stack modes. When in Stack mode, the left/right eyes are
stacked horizontally or vertically, forming one image with double width or height, respectively.
The advantage to using Stack mode is that you do not have to have duplicate branches of the
Node Editor for the left and right eyes. As a consequence, you will see Stereo nodes with two
inputs and two outputs labeled as “Left” and “Right.”
When in Stack mode, the stack should be connected to the left eye input and the Left output
should be used for connecting further nodes. In Stack mode, the respective Right eye inputs
and outputs are hidden.
Chapter – 79 Optical Flow and Stereoscopic Nodes 1623