User guide

168
Control (UI) Default Value Function
useOverscan globals.compDefaults.useOverscan When enabled, use upstream overscan (if
available) during the border extension process. If
overscan is available (and of usable quality), this
typically yields superior results around frame
edges.
However, if you are unsure of this procedure or
the integrity of overscanned areas is unknown, it's
safer to leave this disabled.
Overscan refers to image pixel data outside of the
displayWindow and can be inspected using
options in the Monitor.
For information on explicitly manipulating these
regions, see the ImageCrop node.
processMode Full Frame Sets how to render this node:
• Tiled - The node is rendered incrementally in
tiles. This is preferable when interactive
feedback is desired or the kernel sizes are small.
• Full Frame - The node is rendered in a single
pass as a full frame. This option can reduce
render times for very large kernel sizes.
Note: Output in either mode is identical.
useBlueChannelAsMask disabled When enabled, only pixels that have non-zero blue
values are sampled from the input image. Pixels
with zero blue values (that is, where the blue
channel is black) are output as black.
filtering
xFilter Lanczos3 The filter kernel to use for sampling on the x axis.
yFilter Lanczos3 The filter kernel to use for sampling on the y axis.
4 NODES I-K | IMAGEDISTORT