2017

Table Of Contents
Y Aim field Displays the position of the aiming target of the camera on the vertical (Y) axis, in pixels.
Editable.
Z Aim field Displays the position of the aiming target of the camera on the perpendicular (Z) axis, in pixels.
Editable.
X Up field Displays the up direction on the horizontal (X) axis, in pixels. Editable.
Y Up field Displays the up direction on the vertical (Y) axis, in pixels. Editable.
Z Up field Displays the up direction on the perpendicular (Z) axis, in pixels. Editable.
Roll field Displays the amount of camera roll, in degrees. A positive value rolls the camera clockwise, where
a negative value rolls it counter-clockwise. Available only with the Aim, and Aim and Up cameras. Editable.
Stereo Tab
Stereo Mode box Select the method for computing the zero parallax plane.
To:Select:
Compute the zero parallax plane by toeing-in the cameras. You can compare this effect
to our focusing on an object by rotating our pupils inwards. However, a dangerous side
Converged
effect may occur where you get a keystone effect on the pairs of render images, causing
visual confusion in other elements in the scene. In a rendered image, our focus tends to
cascade over the entire image and we are not focusing on a single object, which is not
true in real life. You should only use Converged when an object is at the center of the
screen with no scene elements at the render borders on either the left or right camera
frustum.
Compute the convergence plane by shifting the frustum using camera film back. This is
the safer way to compute stereo image pairs and avoids keystone artifacts. Off-axis is the
default setting.
Off-axis
Create a parallel camera setup where there is effectively no convergence plane. This is
useful for landscape settings where objects exist at infinite focus.
Parallel
Interaxial Separation field Displays the distance between the left and right cameras, in pixels. Editable.
Zero Parallax field Displays the distance on the camera view axis, in pixels, where the zero parallax plane
occurs (the point where objects appear off screen). Objects in front of the zero parallax plane have negative
parallax. Objects behind the zero parallax plane have positive parallax. Editable.
634 | Chapter 15 Compositing in 3D Space with Action