You can use Reaction to render a stereo scene from two cameras, or vastly different viewpoints from an arbitrary number of
cameras.
To set up a stereo camera rig in Reaction:
- Select the Reaction node in the Schematic view and then select the Cameras tab.
- Create three cameras and Rename them: Center, Left, and Right.
- Make the Center camera parent of the Left & Right cameras by double-clicking the Reaction node in the schematic to access
the Reaction sub-schematic then connect the Center camera 3D Object input to the Left and Right cameras Output 3D object output.
- From the Tool UI, set the Left & Right cameras Translation Z parameter to 0.
- From the Tool UI, set the Left camera Input Stream parameter to 0.
- From the Tool UI, set the Right camera Input Stream parameter to 1.
- From the Reaction Cameras list, set the Left & Right cameras to active by enabling the square button under the A column. Set
the Center camera as inactive by disabling the square button under the A column.
- From the Composition Browser, drag & drop the Left camera folder on the Right camera folder to link them together with expressions.
- From the Tool UI, right-click on the Right camera X Film Offset parameter and choose Edit Expression option.
- In the text field, type a minus sign in front of the expression and press Apply.
- From the Tool UI, right-click on the Right camera X Translation parameter and choose Edit Expression option.
- In the text field, type a minus sign in front of the expression and press Apply.
The stereo rig is ready to use. You can adjust left and right eye convergence.
