Tile Prep
A valuable tool when used prior to distortion filters. Tile Prep blends the edges of a layer to remove aliasing & hard edges in the effects that follow it.

Horizontal Blend The percentage of layer to blend across edge horizontally
Vertical Blend The percentage of layer to blend across edge vertically
Blend Horizontal From Set which side of the layer to prep horizontally - Left or Right
Blend Vertical From Set which side of the layer to prep vertically - Top or Bottom
Horizontal Blend Compression Compress the horizontal blend area. The default value of 1.0 is a linear blend.
Vertical Blend Compression Compress the vertical blend area. The default value of 1.0 is a linear blend.