Each height field layer has a property controlling how operations should affect voxels at the edge of the volume. This node lets you set the property for a given layer.
This is important when tiling height fields into a larger height field map, or merging a smaller height field into a larger height field.
The name of the layer to set the border property on, usually
Actually change the border property. If this is off the node does nothing.
Act as if grid points outside the volume are set to the value in Border value below.
Act as if grid points outside the volume repeat (tile) values inside the volume.
Act as if the values at each border point continue outward outside the volume.
Not useful for height fields.
When Border type is "constant", the value to use for grid points outside the volume.