Pixaflux
Surface Group Erode node
Left Toolbar > 
Mesh Nodes > 
Surface Group Erode
The Surface Group Erode takes as input a surface image with groups (see Surface Groups node) and shrinks the groups, leaving an empty space between them. The empty space is Group 0.
This node can be used with the Surface Group Dilate to reshape the groups.
For more information about surfaces see surface workflow.
input
Surface Image with Groups
output
Surface Image with Eroded Groups
Procedure
To erode groups in a Surface:
- On the left toolbar choose Mesh Nodes > Surface Group Erode. >
- Connect the Surface Group Erode node to a Surface value and an Image value.
Inputs
Surface
The surface value.
Image
The image with the groups.
See Surface Groups node.
Outputs
Surface
The surface value.
Image
The image with the eroded groups.
Attributes Panel
Amount
A amount to erode on each iteration.
Random
A clamp value that controls if a surface pixel is eroded or not based on a random number.
Seed
Seed for the random generator
Iterations
Number of iterations the erosion process is applied.