User Manual

Table Of Contents
Wand Mask [WND]
Wand Mask Node Introduction
The Wand mask masks an image based on a wand-style selection, similar to the Magic Wand
tool found in Adobe Photoshop. As with a Bitmap mask, any image in the composition can be
the source of the mask. Generally, the default is most useful, where the source image is the
input of the node to which the mask is applied.
When adding a Wand mask to a node, a crosshair appears in the viewers. This crosshair should
be positioned in the image to select the color used to create the Wand mask. The mask is
created by examining the pixel color beneath the selection point and adding that color to the
mask. The mask then expands to examine the pixels surrounding the selection point.
Surrounding pixels are added to the mask if they are the same color. The mask stops expanding
when no connecting pixels fall within the color range of the mask.
Inputs
The Wand mask node includes two inputs in the Node Editor.
Input: The orange input accepts a 2D image from which the mask is created.
Effect Mask: The optional blue input expects a mask shape created by polylines,
basic primitive shapes, paint strokes, or bitmaps masks. Connecting a mask to this
input combines the masks. How masks are combined is handled in the Paint mode
menu in the Inspector.
Basic Node Setup
The Wand mask node is not required for connecting an image into the effect mask input, but
like the Bitmap node, it does provide options that are otherwise unavailable. It allows for
selecting channels other than RGBA for the mask, as well as softness and clipping. In the node
tree below, the Wand node takes the composite out of the merge, creating a mask for the
color correction.
A Wand node selects a specific area in the image to create a mask
Chapter – 97 Mask Nodes 2131