User Manual

Table Of Contents
Letterbox [LBX]
The Letterbox node
Letterbox Node Introduction
Use the Letterbox node to adapt existing images to the frame size and aspect ratios of any
other format. The most common use of this node is to convert film resolution images to HD-
sized frames for viewing on an external television monitor. Horizontal or vertical black edges
are automatically added where necessary to compensate for aspect ratio differences. This
node actually changes the resolution of the image.
NOTE: Because this node changes the physical resolution of the image, animating the
controls is not recommended.
Inputs
The single input on the Letterbox node is used to connect a 2D image for letterbox/cropping.
Input: The orange input is used for the primary 2D image you want to letterbox/crop.
Basic Node Setup
The Letterbox node is used in the example below to change the resolution of the Merge node’s
output. Depending on how the resolution is modified, side pillars, or a horizontal letterbox
mask, is applied to “fill in” the frame area, which the Merge node output does not cover.
The Letterbox node converting the Merge output resolution and adding letterbox masking where needed
Chapter – 108 Transform Nodes 2448