Preventing Shape splatter from tiling

Hello all,

I'm creating a Substance Designer filter that turns an image input into an oil paint effect. I made custom brush stroke alphas and used Shape Splatter node to scatter them around.

The problem:

Shape splatter tiles by default, so some brush strokes are leaking through the borders which can be seen in the images. I don't want any tiling effects to happen at all since I will also use this shader to paints on baked Unity lightmaps.

Any help would be appreciated, thanks!